| Date | Time | Condition | T | Wind† | Windchill | Pressure | Visbility | Present Weather | Sky Cover | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2011-02-01 | 23:50 UTC | 3 | −29°C | NE | @ 13 km/h | −38°C | (1920 W/m2) | 68.58 kPa | (3171 m) | 8000 m | Light snow grains Mist | Broken Cloud @ 225 m Broken Cloud @ 750 m |
| 22:50 UTC | −28°C | NE | @ 11 km/h | −36°C | (1820 W/m2) | 68.58 kPa | (3171 m) | Broken Cloud @ 225 m Broken Cloud @ 750 m | ||||
| 21:50 UTC | −28°C | NE | @ 7 km/h | −34°C | (1660 W/m2) | 68.58 kPa | (3171 m) | Scattered Cloud @ 225 m Broken Cloud @ 750 m | ||||
| 20:50 UTC | −28°C | NE | @ 9 km/h | −35°C | (1750 W/m2) | 68.58 kPa | (3171 m) | Broken Cloud @ 225 m Broken Cloud @ 925 m | ||||
| 19:50 UTC | −29°C | ENE | @ 9 km/h | −37°C | (1780 W/m2) | 68.58 kPa | (3171 m) | Broken Cloud @ 225 m Overcast @ 925 m | ||||
| 19:27 UTC | −29°C | ENE | @ 9 km/h | −37°C | (1780 W/m2) | 68.58 kPa | (3171 m) | Broken Cloud @ 225 m Overcast @ 925 m | ||||
| 18:50 UTC | −29°C | NNE | @ 9 km/h | −37°C | (1780 W/m2) | 68.58 kPa | (3171 m) | Scattered Cloud @ 225 m Overcast @ 925 m | ||||
| 17:50 UTC | −30°C | NE | @ 13 km/h | −40°C | (1950 W/m2) | 68.58 kPa | (3171 m) | Unrestricted | Light snow grains | Few Clouds @ 225 m Broken Cloud @ 925 m Broken Cloud @ 2450 m | ||
| 16:50 UTC | −30°C | ENE | @ 7 km/h | −37°C | (1720 W/m2) | 68.58 kPa | (3171 m) | Few Clouds @ 225 m Broken Cloud @ 925 m Broken Cloud @ 2450 m | ||||
| 15:50 UTC | −29°C | NNE | @ 7 km/h | −35°C | (1690 W/m2) | 68.58 kPa | (3171 m) | Fair | Few Clouds @ 225 m Broken Cloud @ 925 m Broken Cloud @ 2450 m | |||
| 14:50 UTC | −30°C | NNE | @ 9 km/h | −38°C | (1810 W/m2) | 68.58 kPa | (3171 m) | Light snow grains | Few Clouds @ 225 m Broken Cloud @ 925 m Broken Cloud @ 2450 m | |||
| 13:50 UTC | −30°C | NNE | @ 11 km/h | −39°C | (1880 W/m2) | 68.61 kPa | (3168 m) | Ice crystals | Few Clouds @ 225 m Scattered Cloud @ 925 m Broken Cloud @ 1525 m Broken Cloud @ 2450 m | |||
| 11:50 UTC | −31°C | NE | @ 13 km/h | −41°C | (1980 W/m2) | 68.61 kPa | (3168 m) | Fair | Few Clouds @ 925 m Scattered Cloud @ 1525 m Broken Cloud @ 2450 m | |||
| 05:50 UTC | −31°C | NE | @ 15 km/h | −42°C | (2040 W/m2) | 68.68 kPa | (3159 m) | 8000 m | Ice crystals Mist | Few Clouds @ 850 m Broken Cloud @ 2450 m | ||
| 04:50 UTC | −30°C | NE | @ 15 km/h | −40°C | (2010 W/m2) | 68.68 kPa | (3159 m) | Unrestricted | Fair | Broken Cloud @ 850 m Broken Cloud @ 2450 m | ||
| 04:24 UTC | −31°C | NE | @ 11 km/h | −40°C | (1910 W/m2) | 68.68 kPa | (3159 m) | Few Clouds @ 450 m Broken Cloud @ 850 m Broken Cloud @ 2450 m | ||||
| 03:50 UTC | −31°C | NNE | @ 15 km/h | −42°C | (2040 W/m2) | 68.68 kPa | (3159 m) | Ice crystals | Few Clouds @ 450 m Scattered Cloud @ 1075 m Broken Cloud @ 2450 m | |||
| 02:50 UTC | −30°C | NE | @ 15 km/h | −40°C | (2010 W/m2) | 68.68 kPa | (3159 m) | Few Clouds @ 450 m Scattered Cloud @ 1225 m Broken Cloud @ 2450 m | ||||
| 01:50 UTC | −30°C | NNE | @ 15 km/h | −40°C | (2010 W/m2) | 68.74 kPa | (3153 m) | Fair | Few Clouds @ 450 m Scattered Cloud @ 1225 m Broken Cloud @ 2125 m | |||
| 00:50 UTC | −30°C | NE | @ 17 km/h | −41°C | (2060 W/m2) | 68.74 kPa | (3153 m) | Few Clouds @ 450 m Broken Cloud @ 2125 m | ||||
| 2011-01-31 | 23:50 UTC | 3 | −30°C | NE | @ 17 km/h | −41°C | (2060 W/m2) | 68.76 kPa | (3150 m) | Unrestricted | Fair | Few Clouds @ 450 m Broken Cloud @ 2275 m |
| 22:50 UTC | −30°C | ENE | @ 15 km/h | −40°C | (2010 W/m2) | 68.76 kPa | (3150 m) | Few Clouds @ 450 m Broken Cloud @ 2275 m | ||||
| 21:50 UTC | −30°C | ENE | @ 15 km/h | −40°C | (2010 W/m2) | 68.79 kPa | (3148 m) | Few Clouds @ 450 m Scattered Cloud @ 925 m Broken Cloud @ 1825 m | ||||
| 20:50 UTC | −30°C | ENE | @ 17 km/h | −41°C | (2060 W/m2) | 68.81 kPa | (3145 m) | Few Clouds @ 925 m Few Clouds @ 1225 m Scattered Cloud @ 1825 m | ||||
| 19:50 UTC | −30°C | ENE | @ 15 km/h | −40°C | (2010 W/m2) | 68.81 kPa | (3145 m) | Few Clouds @ 925 m Few Clouds @ 1225 m Broken Cloud @ 1825 m | ||||
| 18:50 UTC | −30°C | ENE | @ 15 km/h | −40°C | (2010 W/m2) | 68.81 kPa | (3145 m) | Few Clouds @ 925 m Few Clouds @ 1225 m Broken Cloud @ 1825 m | ||||
| 17:50 UTC | −29°C | ENE | @ 13 km/h | −38°C | (1920 W/m2) | 68.84 kPa | (3142 m) | Few Clouds @ 925 m Few Clouds @ 1225 m Broken Cloud @ 1825 m | ||||
| 16:50 UTC | −30°C | ENE | @ 15 km/h | −40°C | (2010 W/m2) | 68.84 kPa | (3142 m) | Few Clouds @ 1225 m Broken Cloud @ 1825 m | ||||
| 15:50 UTC | −29°C | ENE | @ 19 km/h | −40°C | (2080 W/m2) | 68.86 kPa | (3139 m) | Few Clouds @ 925 m Few Clouds @ 1225 m Broken Cloud @ 1825 m | ||||
| 14:50 UTC | −28°C | ENE | @ 19 km/h | −39°C | (2050 W/m2) | 68.86 kPa | (3139 m) | Few Clouds @ 925 m Scattered Cloud @ 1225 m Broken Cloud @ 1825 m | ||||
| 13:50 UTC | −28°C | ENE | @ 19 km/h | −39°C | (2050 W/m2) | 68.91 kPa | (3133 m) | Few Clouds @ 925 m Scattered Cloud @ 1825 m | ||||
| 12:50 UTC | −27°C | NE | @ 22 km/h | −39°C | (2090 W/m2) | 68.91 kPa | (3133 m) | Scattered Cloud @ 925 m Broken Cloud @ 1825 m | ||||
| 11:50 UTC | −26°C | NE | @ 26 km/h | −39°C | (2130 W/m2) | 68.89 kPa | (3136 m) | 9000 m | Mist | Broken Cloud @ 925 m Broken Cloud @ 1825 m | ||
| 10:50 UTC | −25°C | NE | @ 22 km/h | −36°C | (2020 W/m2) | 68.91 kPa | (3133 m) | Broken Cloud @ 925 m | ||||
| 09:50 UTC | −25°C | NE | @ 22 km/h | −36°C | (2020 W/m2) | 68.91 kPa | (3133 m) | Overcast @ 975 m | ||||
| 08:50 UTC | −25°C | NE | @ 24 km/h | −37°C | (2060 W/m2) | 68.94 kPa | (3130 m) | 8000 m | Overcast @ 975 m | |||
| 07:50 UTC | −25°C | NNE | @ 24 km/h | −37°C | (2060 W/m2) | 68.94 kPa | (3130 m) | 6000 m | Overcast @ 975 m | |||
| 06:50 UTC | −25°C | NNE | @ 19 km/h | −35°C | (1950 W/m2) | 68.91 kPa | (3133 m) | Overcast @ 1075 m | ||||
| 06:20 UTC | −25°C | NNE | @ 22 km/h | −36°C | (2020 W/m2) | 68.94 kPa | (3130 m) | 4800 m | Light snow grains Mist | Overcast @ 1075 m | ||
| 05:50 UTC | −25°C | NNE | @ 20 km/h | −36°C | (1990 W/m2) | 68.94 kPa | (3130 m) | 4000 m | Overcast @ 1025 m | |||
| 05:22 UTC | −25°C | NNE | @ 20 km/h | −36°C | (1990 W/m2) | 68.91 kPa | (3133 m) | Overcast @ 975 m | ||||
| 04:50 UTC | −26°C | N | @ 24 km/h | −38°C | (2090 W/m2) | 68.91 kPa | (3133 m) | 4800 m | Overcast @ 750 m | |||
| 03:50 UTC | −26°C | N | @ 24 km/h | −38°C | (2090 W/m2) | 68.89 kPa | (3136 m) | Mist | Few Clouds @ 300 m Overcast @ 600 m | |||
| 02:50 UTC | −26°C | N | @ 24 km/h | −38°C | (2090 W/m2) | 68.89 kPa | (3136 m) | Few Clouds @ 300 m Overcast @ 600 m | ||||
| 02:36 UTC | −26°C | N | @ 24 km/h | −38°C | (2090 W/m2) | 68.91 kPa | (3133 m) | Few Clouds @ 300 m Overcast @ 600 m | ||||
| 01:50 UTC | −26°C | NNE | @ 20 km/h | −37°C | (2020 W/m2) | 68.89 kPa | (3136 m) | 3200 m | Blowing snow | Few Clouds @ 0 m Overcast @ 300 m | ||
| 00:50 UTC | −26°C | NNE | @ 20 km/h | −37°C | (2020 W/m2) | 68.91 kPa | (3133 m) | Few Clouds @ 0 m Broken Cloud @ 225 m Overcast @ 300 m | ||||
| 2011-01-30 | 23:50 UTC | 3 | −26°C | NNE | @ 24 km/h | −38°C | (2090 W/m2) | 68.91 kPa | (3133 m) | 2400 m | Blowing snow | Few Clouds @ 0 m Overcast @ 300 m |
| 21:50 UTC | −25°C | NNE | @ 20 km/h | −36°C | (1990 W/m2) | 68.94 kPa | (3130 m) | Light snow grains Mist | Few Clouds @ 0 m Overcast @ 300 m | |||
| 20:50 UTC | −25°C | NE | @ 26 km/h | −37°C | (2090 W/m2) | 68.94 kPa | (3130 m) | 1600–2400 m | Light snow grains Blowing snow | Scattered Cloud @ 0 m Broken Cloud @ 100 m Overcast @ 450 m | ||
| 19:50 UTC | −24°C | NNE | @ 31 km/h | −37°C | (2140 W/m2) | 68.94 kPa | (3130 m) | 1200 m | Light snow grains Blowing snow Mist | Scattered Cloud @ 0 m Broken Cloud @ 100 m Overcast @ 450 m | ||
| 19:15 UTC | −24°C | NNE | @ 26 km/h | −36°C | (2060 W/m2) | 68.97 kPa | (3127 m) | 800 m | Light snow grains Blowing snow Ice fog | Scattered Cloud @ 0 m Broken Cloud @ 100 m Overcast @ 450 m | ||
| 18:50 UTC | −24°C | N | @ 26 km/h | −36°C | (2060 W/m2) | 68.97 kPa | (3127 m) | 1600 m | Light snow grains Blowing snow | Scattered Cloud @ 0 m Broken Cloud @ 100 m Overcast @ 450 m | ||
| 17:50 UTC | −24°C | NNE | @ 28 km/h | −36°C | (2080 W/m2) | 68.94 kPa | (3130 m) | 400 m | Scattered Cloud @ 0 m Broken Cloud @ 100 m Overcast @ 500 m | |||
| 16:50 UTC | −24°C | NNE | @ 28 km/h | −36°C | (2080 W/m2) | 68.94 kPa | (3130 m) | 800 m | Scattered Cloud @ 0 m Broken Cloud @ 100 m Overcast @ 225 m | |||
| 15:50 UTC | −24°C | NNE | @ 30 km/h | −37°C | (2110 W/m2) | 68.97 kPa | (3127 m) | 400 m | Snow grains Blowing snow | Indefinite Ceiling Vertical Visibility 150 m | ||
| 14:50 UTC | −24°C | NNE | @ 28 km/h | −36°C | (2080 W/m2) | 68.97 kPa | (3127 m) | Indefinite Ceiling Vertical Visibility 150 m | ||||
| 13:50 UTC | −24°C | NE | @ 26 km/h | −36°C | (2060 W/m2) | 68.99 kPa | (3124 m) | 800 m | Light snow grains Blowing snow | Scattered Cloud @ 0 m Broken Cloud @ 225 m Overcast @ 375 m | ||
| 11:50 UTC | −24°C | N | @ 39 km/h | −38°C | (2220 W/m2) | 68.99 kPa | (3124 m) | Few Clouds @ 0 m Broken Cloud @ 225 m Overcast @ 375 m | ||||
| 05:50 UTC | −23°C | NNE | @ 31 km/h | −36°C | (2100 W/m2) | 68.97 kPa | (3127 m) | 1200 m | Overcast @ 375 m | |||
| 2011-01-29 | 23:50 UTC | 3 | −26°C | NNE | @ 26 km/h | −39°C | (2130 W/m2) | 68.94 kPa | (3130 m) | 3200 m | Ice crystals Blowing snow | Few Clouds @ 0 m Few Clouds @ 225 m Scattered Cloud @ 1225 m |
| 17:50 UTC | −26°C | N | @ 31 km/h | −40°C | (2210 W/m2) | 68.86 kPa | (3139 m) | 2400 m | Few Clouds @ 0 m Broken Cloud @ 225 m Broken Cloud @ 425 m | |||
| 11:50 UTC | −27°C | NNE | @ 24 km/h | −39°C | (2130 W/m2) | 68.79 kPa | (3148 m) | Few Clouds @ 0 m Broken Cloud @ 225 m Broken Cloud @ 425 m | ||||
| 05:50 UTC | −27°C | NNE | @ 26 km/h | −40°C | (2160 W/m2) | 68.68 kPa | (3159 m) | Few Clouds @ 0 m Few Clouds @ 2450 m | ||||
| 2011-01-28 | 23:50 UTC | 3 | −29°C | NNE | @ 26 km/h | −42°C | (2240 W/m2) | 68.66 kPa | (3162 m) | 6000 m | Ice crystals Blowing snow | Few Clouds @ 0 m Few Clouds @ 2450 m |
| 17:50 UTC | −28°C | N | @ 28 km/h | −42°C | (2230 W/m2) | 68.48 kPa | (3182 m) | 3200 m | Blowing snow | Few Clouds @ 0 m Broken Cloud @ 225 m Broken Cloud @ 925 m Broken Cloud @ 2450 m | ||
| 11:50 UTC | −28°C | NE | @ 31 km/h | −42°C | (2290 W/m2) | 68.35 kPa | (3197 m) | 2400 m | Few Clouds @ 0 m Few Clouds @ 2450 m | |||
| 10:50 UTC | −28°C | NE | @ 30 km/h | −42°C | (2260 W/m2) | 68.35 kPa | (3197 m) | Few Clouds @ 0 m Few Clouds @ 2450 m | ||||
| 09:50 UTC | −28°C | NE | @ 26 km/h | −41°C | (2200 W/m2) | 68.33 kPa | (3200 m) | Few Clouds @ 0 m Few Clouds @ 2450 m | ||||
| 08:50 UTC | −28°C | NE | @ 28 km/h | −42°C | (2230 W/m2) | 68.35 kPa | (3197 m) | Few Clouds @ 0 m Few Clouds @ 2450 m | ||||
| 07:50 UTC | −28°C | NE | @ 28 km/h | −42°C | (2230 W/m2) | 68.38 kPa | (3194 m) | 1600 m | Few Clouds @ 0 m | |||
| 06:50 UTC | −27°C | NE | @ 33 km/h | −41°C | (2270 W/m2) | 68.38 kPa | (3194 m) | Few Clouds @ 0 m | ||||
| 05:50 UTC | −27°C | NE | @ 33 km/h | −41°C | (2270 W/m2) | 68.40 kPa | (3191 m) | Few Clouds @ 0 m | ||||
| 05:33 UTC | −27°C | NE | @ 33 km/h | −41°C | (2270 W/m2) | 68.40 kPa | (3191 m) | Few Clouds @ 0 m | ||||
| 04:50 UTC | −27°C | NE | @ 31 km/h | −41°C | (2250 W/m2) | 68.40 kPa | (3191 m) | 1200 m | Few Clouds @ 0 m | |||
| 02:15 UTC | −27°C | ENE | @ 35 km/h | −42°C | (2300 W/m2) | 68.48 kPa | (3182 m) | Few Clouds @ 0 m | ||||
| 01:50 UTC | −27°C | NE | @ 31 km/h | −41°C | (2250 W/m2) | 68.48 kPa | (3182 m) | 1600 m | Ice crystals Blowing snow | Few Clouds @ 0 m | ||
| 00:50 UTC | −27°C | ENE | @ 35 km/h | −42°C | (2300 W/m2) | 68.53 kPa | (3177 m) | 2400 m | Few Clouds @ 0 m | |||
| 00:23 UTC | −27°C | NE | @ 31 km/h | −41°C | (2250 W/m2) | 68.53 kPa | (3177 m) | Few Clouds @ 0 m Few Clouds @ 2450 m | ||||
| 2011-01-27 | 23:50 UTC | 3 | −27°C | ENE | @ 33 km/h | −41°C | (2270 W/m2) | 68.58 kPa | (3171 m) | 4000 m | Ice crystals Blowing snow | Few Clouds @ 0 m Few Clouds @ 2450 m |
| 22:50 UTC | −27°C | NE | @ 37 km/h | −42°C | (2320 W/m2) | 68.61 kPa | (3168 m) | Few Clouds @ 0 m | ||||
| 21:50 UTC | −26°C | ENE | @ 30 km/h | −39°C | (2190 W/m2) | 68.63 kPa | (3165 m) | Few Clouds @ 0 m | ||||
| 20:50 UTC | −26°C | ENE | @ 30 km/h | −39°C | (2190 W/m2) | 68.68 kPa | (3159 m) | 4800 m | Few Clouds @ 0 m | |||
| 19:50 UTC | −26°C | ENE | @ 30 km/h | −39°C | (2190 W/m2) | 68.71 kPa | (3156 m) | Few Clouds @ 0 m | ||||
| 18:50 UTC | −26°C | NE | @ 28 km/h | −39°C | (2160 W/m2) | 68.74 kPa | (3153 m) | 6000 m | Few Clouds @ 0 m | |||
| 17:50 UTC | −27°C | NE | @ 30 km/h | −41°C | (2220 W/m2) | 68.74 kPa | (3153 m) | Unrestricted | Low drifting snow | Clear | ||
| 16:50 UTC | −27°C | NE | @ 30 km/h | −41°C | (2220 W/m2) | 68.76 kPa | (3150 m) | Clear | ||||
| 15:50 UTC | −27°C | ENE | @ 22 km/h | −39°C | (2090 W/m2) | 68.79 kPa | (3148 m) | Clear | ||||
| 14:50 UTC | −27°C | NE | @ 28 km/h | −40°C | (2190 W/m2) | 68.81 kPa | (3145 m) | Clear | ||||
| 13:50 UTC | −27°C | NE | @ 26 km/h | −40°C | (2160 W/m2) | 68.84 kPa | (3142 m) | Clear | ||||
| 12:50 UTC | −27°C | NE | @ 31 km/h | −41°C | (2250 W/m2) | 68.84 kPa | (3142 m) | Clear | ||||
| 11:50 UTC | −27°C | ENE | @ 28 km/h | −40°C | (2190 W/m2) | 68.86 kPa | (3139 m) | Clear | ||||
| 10:50 UTC | −27°C | NE | @ 30 km/h | −41°C | (2220 W/m2) | 68.89 kPa | (3136 m) | Clear | ||||
| 09:50 UTC | −27°C | NE | @ 30 km/h | −41°C | (2220 W/m2) | 68.89 kPa | (3136 m) | 8000 m | Blowing snow | Few Clouds @ 0 m | ||
| 08:50 UTC | −27°C | NE | @ 30 km/h | −41°C | (2220 W/m2) | 68.89 kPa | (3136 m) | 9000 m | Clear | |||
| 07:50 UTC | −27°C | NE | @ 28 km/h | −40°C | (2190 W/m2) | 68.91 kPa | (3133 m) | 6000 m | Few Clouds @ 0 m | |||
| 06:50 UTC | −27°C | NE | @ 30 km/h | −41°C | (2220 W/m2) | 68.91 kPa | (3133 m) | 4800 m | Few Clouds @ 0 m | |||
| 06:26 UTC | −27°C | NE | @ 30 km/h | −41°C | (2220 W/m2) | 68.91 kPa | (3133 m) | Few Clouds @ 0 m | ||||
| 05:50 UTC | −27°C | NE | @ 22 km/h | −39°C | (2090 W/m2) | 68.91 kPa | (3133 m) | 4000 m | Few Clouds @ 0 m | |||
| 04:09 UTC | −28°C | NE | @ 28 km/h | −42°C | (2230 W/m2) | 68.91 kPa | (3133 m) | 3200 m | Few Clouds @ 0 m | |||
| 03:50 UTC | −28°C | NE | @ 30 km/h | −42°C | (2260 W/m2) | 68.94 kPa | (3130 m) | 4800 m | Few Clouds @ 0 m | |||
| 01:50 UTC | −28°C | NE | @ 31 km/h | −42°C | (2290 W/m2) | 68.94 kPa | (3130 m) | 9000 m | Few Clouds @ 0 m | |||
| 01:17 UTC | −27°C | NE | @ 28 km/h | −40°C | (2190 W/m2) | 68.94 kPa | (3130 m) | 6000 m | Ice crystals Blowing snow | Few Clouds @ 0 m | ||
| 2011-01-26 | 23:50 UTC | 3 | −28°C | NE | @ 26 km/h | −41°C | (2200 W/m2) | 68.97 kPa | (3127 m) | 3200 m | Ice crystals Blowing snow | Few Clouds @ 0 m |
| 23:29 UTC | −28°C | NE | @ 24 km/h | −41°C | (2170 W/m2) | 68.97 kPa | (3127 m) | Few Clouds @ 0 m | ||||
| 22:50 UTC | −28°C | NE | @ 26 km/h | −41°C | (2200 W/m2) | 68.97 kPa | (3127 m) | 2800 m | Few Clouds @ 0 m | |||
| 21:50 UTC | −27°C | NE | @ 22 km/h | −39°C | (2090 W/m2) | 68.97 kPa | (3127 m) | 2400 m | Few Clouds @ 0 m | |||
| 20:50 UTC | −27°C | NE | @ 26 km/h | −40°C | (2160 W/m2) | 68.99 kPa | (3124 m) | 4800 m | Few Clouds @ 0 m | |||
| 19:50 UTC | −27°C | NE | @ 24 km/h | −39°C | (2130 W/m2) | 68.97 kPa | (3127 m) | Few Clouds @ 0 m Few Clouds @ 3050 m | ||||
| 18:50 UTC | −27°C | NE | @ 22 km/h | −39°C | (2090 W/m2) | 68.97 kPa | (3127 m) | 4000 m | Few Clouds @ 0 m | |||
| 17:50 UTC | −27°C | NE | @ 20 km/h | −38°C | (2060 W/m2) | 68.97 kPa | (3127 m) | 4800 m | Blowing snow | Few Clouds @ 0 m Few Clouds @ 3050 m | ||
| 16:50 UTC | −27°C | NE | @ 22 km/h | −39°C | (2090 W/m2) | 68.94 kPa | (3130 m) | Few Clouds @ 0 m Few Clouds @ 3050 m | ||||
| 15:50 UTC | −27°C | NNE | @ 26 km/h | −40°C | (2160 W/m2) | 68.94 kPa | (3130 m) | Few Clouds @ 0 m Few Clouds @ 3050 m | ||||
| 14:50 UTC | −27°C | NE | @ 22 km/h | −39°C | (2090 W/m2) | 68.97 kPa | (3127 m) | Few Clouds @ 0 m Few Clouds @ 3050 m | ||||
| 13:50 UTC | −27°C | NNE | @ 31 km/h | −41°C | (2250 W/m2) | 68.97 kPa | (3127 m) | 4000 m | Few Clouds @ 0 m Scattered Cloud @ 3050 m | |||
| 11:50 UTC | −27°C | NE | @ 26 km/h | −40°C | (2160 W/m2) | 68.97 kPa | (3127 m) | 3200 m | Few Clouds @ 0 m Broken Cloud @ 3050 m | |||
| 07:50 UTC | −27°C | NE | @ 30 km/h | −41°C | (2220 W/m2) | 68.97 kPa | (3127 m) | 4800 m | Ice crystals Mist | Few Clouds @ 0 m Few Clouds @ 1225 m Few Clouds @ 3050 m | ||
| 07:21 UTC | −27°C | NE | @ 24 km/h | −39°C | (2130 W/m2) | 68.97 kPa | (3127 m) | 6000 m | Few Clouds @ 0 m Few Clouds @ 1225 m Few Clouds @ 2450 m | |||
| 06:50 UTC | −28°C | NE | @ 22 km/h | −40°C | (2130 W/m2) | 68.97 kPa | (3127 m) | 4000 m | Few Clouds @ 0 m Few Clouds @ 1225 m Few Clouds @ 2450 m | |||
| 05:50 UTC | −27°C | NE | @ 17 km/h | −37°C | (1970 W/m2) | 68.94 kPa | (3130 m) | Mist | Few Clouds @ 0 m Broken Cloud @ 1225 m | |||
| 05:15 UTC | −27°C | NE | @ 19 km/h | −38°C | (2010 W/m2) | 68.94 kPa | (3130 m) | Broken Cloud @ 1000 m Broken Cloud @ 1525 m | ||||
| 04:50 UTC | −27°C | NE | @ 20 km/h | −38°C | (2060 W/m2) | 68.94 kPa | (3130 m) | Broken Cloud @ 850 m | ||||
| 04:36 UTC | −27°C | NE | @ 20 km/h | −38°C | (2060 W/m2) | 68.94 kPa | (3130 m) | Ice crystals Mist | Few Clouds @ 375 m Broken Cloud @ 750 m | |||
| 04:17 UTC | −28°C | ENE | @ 17 km/h | −39°C | (2000 W/m2) | 68.94 kPa | (3130 m) | Few Clouds @ 375 m Scattered Cloud @ 750 m Broken Cloud @ 1525 m | ||||
| 03:50 UTC | −27°C | ENE | @ 20 km/h | −38°C | (2060 W/m2) | 68.94 kPa | (3130 m) | 2400 m | Broken Cloud @ 375 m Broken Cloud @ 1525 m | |||
| 03:09 UTC | −25°C | NE | @ 22 km/h | −36°C | (2020 W/m2) | 68.94 kPa | (3130 m) | Mist | Broken Cloud @ 375 m | |||
| 02:50 UTC | −25°C | NNE | @ 26 km/h | −37°C | (2090 W/m2) | 68.94 kPa | (3130 m) | 4800 m | Overcast @ 375 m | |||
| 01:50 UTC | −24°C | NNE | @ 22 km/h | −35°C | (1990 W/m2) | 68.94 kPa | (3130 m) | 8000 m | Overcast @ 375 m | |||
| 01:26 UTC | −24°C | NNE | @ 20 km/h | −35°C | (1950 W/m2) | 68.94 kPa | (3130 m) | Light snow grains Mist | Overcast @ 375 m | |||
| 00:50 UTC | −24°C | NNE | @ 20 km/h | −35°C | (1950 W/m2) | 68.94 kPa | (3130 m) | 9000 m | Broken Cloud @ 450 m | |||
| 2011-01-25 | 23:50 UTC | 3 | −24°C | NNE | @ 20 km/h | −35°C | (1950 W/m2) | 68.91 kPa | (3133 m) | 9000 m | Mist | Overcast @ 575 m |
| 22:50 UTC | −24°C | NNE | @ 13 km/h | −32°C | (1760 W/m2) | 68.89 kPa | (3136 m) | Unrestricted | Fair | Overcast @ 700 m | ||
| 21:50 UTC | −24°C | N | @ 15 km/h | −33°C | (1820 W/m2) | 68.86 kPa | (3139 m) | Overcast @ 750 m | ||||
| 20:50 UTC | −24°C | N | @ 15 km/h | −33°C | (1820 W/m2) | 68.84 kPa | (3142 m) | Light snow grains | Overcast @ 850 m | |||
| 19:50 UTC | −24°C | N | @ 15 km/h | −33°C | (1820 W/m2) | 68.81 kPa | (3145 m) | Overcast @ 850 m | ||||
| 18:50 UTC | −24°C | N | @ 15 km/h | −33°C | (1820 W/m2) | 68.79 kPa | (3148 m) | Overcast @ 850 m | ||||
| 17:50 UTC | −24°C | N | @ 13 km/h | −32°C | (1760 W/m2) | 68.74 kPa | (3153 m) | Overcast @ 850 m | ||||
| 16:50 UTC | −24°C | N | @ 13 km/h | −32°C | (1760 W/m2) | 68.71 kPa | (3156 m) | Overcast @ 850 m | ||||
| 11:50 UTC | −23°C | WNW | @ 9 km/h | −29°C | (1610 W/m2) | 68.63 kPa | (3165 m) | Broken Cloud @ 550 m Overcast @ 725 m | ||||
| 06:24 UTC | −22°C | WNW | @ 20 km/h | −32°C | (1880 W/m2) | 68.48 kPa | (3182 m) | 4800 m | Mist | Overcast @ 525 m | ||
| 05:50 UTC | −22°C | N | @ 20 km/h | −32°C | (1880 W/m2) | 68.45 kPa | (3185 m) | 2400 m | Light snow grains Mist | Scattered Cloud @ 375 m Overcast @ 675 m | ||
| 04:50 UTC | −23°C | N | @ 22 km/h | −34°C | (1950 W/m2) | 68.43 kPa | (3188 m) | Broken Cloud @ 450 m Overcast @ 750 m | ||||
| 03:50 UTC | −23°C | N | @ 22 km/h | −34°C | (1950 W/m2) | 68.40 kPa | (3191 m) | Broken Cloud @ 525 m Overcast @ 850 m | ||||
| 02:50 UTC | −23°C | N | @ 22 km/h | −34°C | (1950 W/m2) | 68.38 kPa | (3194 m) | Ice crystals Blowing snow Mist | Overcast @ 525 m | |||
| 01:50 UTC | −23°C | N | @ 26 km/h | −35°C | (2020 W/m2) | 68.35 kPa | (3197 m) | Broken Cloud @ 550 m Overcast @ 1075 m | ||||
| 00:50 UTC | −23°C | N | @ 22 km/h | −34°C | (1950 W/m2) | 68.33 kPa | (3200 m) | 3200 m | Ice crystals Blowing snow | Broken Cloud @ 450 m Overcast @ 1075 m | ||
| 2011-01-24 | 23:50 UTC | 3 | −23°C | N | @ 22 km/h | −34°C | (1950 W/m2) | 68.30 kPa | (3203 m) | 3200 m | Ice crystals Blowing snow | Few Clouds @ 0 m Overcast @ 1075 m |
| 22:50 UTC | −24°C | N | @ 24 km/h | −36°C | (2020 W/m2) | 68.28 kPa | (3206 m) | Few Clouds @ 0 m Broken Cloud @ 1225 m Overcast @ 1825 m | ||||
| 21:50 UTC | −24°C | N | @ 26 km/h | −36°C | (2060 W/m2) | 68.25 kPa | (3209 m) | Few Clouds @ 0 m Scattered Cloud @ 750 m Broken Cloud @ 1525 m | ||||
| 21:28 UTC | −24°C | N | @ 22 km/h | −35°C | (1990 W/m2) | 68.25 kPa | (3209 m) | Few Clouds @ 0 m Broken Cloud @ 1525 m Broken Cloud @ 2450 m | ||||
| 19:50 UTC | −23°C | N | @ 30 km/h | −35°C | (2070 W/m2) | 68.25 kPa | (3209 m) | 1600 m | Broken Cloud @ 0 m Overcast @ 1525 m | |||
| 18:50 UTC | −23°C | NNE | @ 24 km/h | −34°C | (1990 W/m2) | 68.23 kPa | (3212 m) | 2400 m | Broken Cloud @ 0 m Broken Cloud @ 1525 m | |||
| 18:21 UTC | −23°C | NNE | @ 24 km/h | −34°C | (1990 W/m2) | 68.25 kPa | (3209 m) | 3200 m | Scattered Cloud @ 0 m Broken Cloud @ 1525 m | |||
| 17:50 UTC | −23°C | NNE | @ 26 km/h | −35°C | (2020 W/m2) | 68.23 kPa | (3212 m) | 1600 m | Broken Cloud @ 0 m Broken Cloud @ 1525 m | |||
| 17:23 UTC | −24°C | NNE | @ 28 km/h | −36°C | (2080 W/m2) | 68.23 kPa | (3212 m) | Light snow grains Blowing snow | Broken Cloud @ 0 m Broken Cloud @ 450 m Overcast @ 1525 m | |||
| 17:06 UTC | −24°C | NNE | @ 28 km/h | −36°C | (2080 W/m2) | 68.23 kPa | (3212 m) | Scattered Cloud @ 0 m Broken Cloud @ 450 m Overcast @ 1525 m | ||||
| 16:50 UTC | −24°C | NE | @ 30 km/h | −37°C | (2110 W/m2) | 68.23 kPa | (3212 m) | 2000 m | Few Clouds @ 0 m Scattered Cloud @ 150 m Overcast @ 450 m | |||
| 15:50 UTC | −24°C | NE | @ 26 km/h | −36°C | (2060 W/m2) | 68.28 kPa | (3206 m) | 2400 m | Few Clouds @ 0 m Scattered Cloud @ 225 m Broken Cloud @ 450 m | |||
| 14:50 UTC | −24°C | NE | @ 24 km/h | −36°C | (2020 W/m2) | 68.30 kPa | (3203 m) | Few Clouds @ 0 m Scattered Cloud @ 225 m Overcast @ 450 m | ||||
| 13:50 UTC | −24°C | NE | @ 24 km/h | −36°C | (2020 W/m2) | 68.33 kPa | (3200 m) | Ice crystals Blowing snow | Few Clouds @ 0 m Overcast @ 450 m | |||
| 11:50 UTC | −25°C | NE | @ 22 km/h | −36°C | (2020 W/m2) | 68.38 kPa | (3194 m) | 1600 m | Light snow grains Blowing snow | Few Clouds @ 0 m Broken Cloud @ 225 m Overcast @ 450 m | ||
| 07:50 UTC | −25°C | ENE | @ 19 km/h | −35°C | (1950 W/m2) | 68.45 kPa | (3185 m) | Light snow grains | Few Clouds @ 100 m Scattered Cloud @ 225 m Broken Cloud @ 450 m Overcast @ 1825 m | |||
| 07:30 UTC | −24°C | NE | @ 19 km/h | −34°C | (1910 W/m2) | 68.45 kPa | (3185 m) | Scattered Cloud @ 100 m Broken Cloud @ 225 m Overcast @ 450 m | ||||
| 06:50 UTC | −23°C | ENE | @ 17 km/h | −32°C | (1830 W/m2) | 68.48 kPa | (3182 m) | 2400 m | Few Clouds @ 100 m Scattered Cloud @ 225 m Broken Cloud @ 450 m Broken Cloud @ 1825 m | |||
| 06:22 UTC | −23°C | ENE | @ 17 km/h | −32°C | (1830 W/m2) | 68.48 kPa | (3182 m) | Broken Cloud @ 100 m Overcast @ 225 m | ||||
| 06:07 UTC | −23°C | E | @ 17 km/h | −32°C | (1830 W/m2) | 68.48 kPa | (3182 m) | 3200 m | Broken Cloud @ 100 m Overcast @ 225 m | |||
| 05:50 UTC | −25°C | E | @ 15 km/h | −34°C | (1850 W/m2) | 68.48 kPa | (3182 m) | Unrestricted | Few Clouds @ 100 m Broken Cloud @ 225 m Overcast @ 450 m | |||
| 04:50 UTC | −27°C | E | @ 11 km/h | −35°C | (1790 W/m2) | 68.51 kPa | (3180 m) | Fair | Broken Cloud @ 100 m Overcast @ 450 m | |||
| 03:50 UTC | −27°C | E | @ 9 km/h | −34°C | (1720 W/m2) | 68.48 kPa | (3182 m) | Few Clouds @ 450 m Scattered Cloud @ 750 m Broken Cloud @ 1825 m | ||||
| 03:15 UTC | −26°C | ENE | @ 9 km/h | −33°C | (1690 W/m2) | 68.48 kPa | (3182 m) | Ice crystals | Few Clouds @ 450 m Few Clouds @ 700 m Scattered Cloud @ 1825 m | |||
| 02:50 UTC | −25°C | NE | @ 9 km/h | −32°C | (1660 W/m2) | 68.51 kPa | (3180 m) | Fair | Broken Cloud @ 450 m Broken Cloud @ 700 m Broken Cloud @ 1825 m | |||
| 02:35 UTC | −25°C | NNE | @ 9 km/h | −32°C | (1660 W/m2) | 68.51 kPa | (3180 m) | Few Clouds @ 150 m Broken Cloud @ 525 m Broken Cloud @ 1825 m | ||||
| 01:50 UTC | −25°C | N | @ 15 km/h | −34°C | (1850 W/m2) | 68.51 kPa | (3180 m) | 2400 m | Light snow grains | Overcast @ 125 m | ||
| 01:35 UTC | −25°C | NNE | @ 13 km/h | −33°C | (1800 W/m2) | 68.51 kPa | (3180 m) | Overcast @ 175 m | ||||
| 01:17 UTC | −25°C | N | @ 17 km/h | −35°C | (1900 W/m2) | 68.51 kPa | (3180 m) | 1200 m | Overcast @ 125 m | |||
| 00:50 UTC | −25°C | N | @ 13 km/h | −33°C | (1800 W/m2) | 68.51 kPa | (3180 m) | Unrestricted | Overcast @ 150 m | |||
| 2011-01-23 | 23:50 UTC | 3 | −25°C | WNW | @ 7 km/h | −31°C | (1580 W/m2) | 68.51 kPa | (3180 m) | Unrestricted | Fair | Overcast @ 175 m |
| 23:25 UTC | −26°C | WNW | @ 9 km/h | −33°C | (1690 W/m2) | 68.51 kPa | (3180 m) | Overcast @ 225 m | ||||
| 23:03 UTC | −27°C | WNW | @ 15 km/h | −37°C | (1910 W/m2) | 68.51 kPa | (3180 m) | Ice crystals | Broken Cloud @ 300 m Broken Cloud @ 1075 m Broken Cloud @ 1525 m | |||
| 22:50 UTC | −27°C | N | @ 15 km/h | −37°C | (1910 W/m2) | 68.51 kPa | (3180 m) | Few Clouds @ 600 m Few Clouds @ 1075 m Scattered Cloud @ 1525 m | ||||
| 21:50 UTC | −27°C | N | @ 13 km/h | −36°C | (1860 W/m2) | 68.51 kPa | (3180 m) | Fair | Scattered Cloud @ 600 m Broken Cloud @ 1075 m Broken Cloud @ 1525 m | |||
| 21:31 UTC | −27°C | N | @ 15 km/h | −37°C | (1910 W/m2) | 68.51 kPa | (3180 m) | Ice crystals | Few Clouds @ 600 m Scattered Cloud @ 1075 m Broken Cloud @ 1525 m | |||
| 20:50 UTC | −27°C | N | @ 19 km/h | −38°C | (2010 W/m2) | 68.48 kPa | (3182 m) | Broken Cloud @ 600 m Broken Cloud @ 1525 m | ||||
| 20:35 UTC | −27°C | N | @ 19 km/h | −38°C | (2010 W/m2) | 68.48 kPa | (3182 m) | Broken Cloud @ 600 m Broken Cloud @ 1525 m | ||||
| 19:50 UTC | −27°C | N | @ 17 km/h | −37°C | (1970 W/m2) | 68.48 kPa | (3182 m) | Few Clouds @ 600 m Broken Cloud @ 1525 m | ||||
| 18:50 UTC | −27°C | N | @ 17 km/h | −37°C | (1970 W/m2) | 68.45 kPa | (3185 m) | Few Clouds @ 600 m Broken Cloud @ 1525 m Broken Cloud @ 2450 m | ||||
| 17:50 UTC | −26°C | N | @ 17 km/h | −36°C | (1930 W/m2) | 68.45 kPa | (3185 m) | Fair | Few Clouds @ 600 m Scattered Cloud @ 1525 m Broken Cloud @ 2450 m | |||
| 16:50 UTC | −26°C | N | @ 15 km/h | −35°C | (1880 W/m2) | 68.43 kPa | (3188 m) | Ice crystals | Few Clouds @ 600 m Scattered Cloud @ 1525 m Broken Cloud @ 2450 m | |||
| 15:50 UTC | −26°C | NNE | @ 13 km/h | −35°C | (1830 W/m2) | 68.43 kPa | (3188 m) | Few Clouds @ 300 m Few Clouds @ 600 m Scattered Cloud @ 1525 m Broken Cloud @ 3050 m | ||||
| 11:50 UTC | −25°C | ENE | @ 11 km/h | −33°C | (1730 W/m2) | 68.45 kPa | (3185 m) | Few Clouds @ 300 m Scattered Cloud @ 1525 m Broken Cloud @ 3050 m | ||||
| 05:50 UTC | −22°C | NE | @ 22 km/h | −33°C | (1920 W/m2) | 68.56 kPa | (3174 m) | 4000 m | Light snow | Overcast @ 325 m | ||
| 2011-01-22 | 23:50 UTC | 3 | −23°C | NNE | @ 17 km/h | −32°C | (1830 W/m2) | 68.68 kPa | (3159 m) | 6000 m | Mist | Broken Cloud @ 425 m Overcast @ 750 m |
| 17:50 UTC | −25°C | NNE | @ 17 km/h | −35°C | (1900 W/m2) | 68.66 kPa | (3162 m) | Unrestricted | Light snow grains | Broken Cloud @ 225 m Broken Cloud @ 450 m Overcast @ 1525 m | ||
| 11:50 UTC | −24°C | N | @ 11 km/h | −31°C | (1700 W/m2) | 68.61 kPa | (3168 m) | Fair | Broken Cloud @ 225 m Broken Cloud @ 1075 m | |||
| 05:50 UTC | −22°C | N | @ 15 km/h | −30°C | (1750 W/m2) | 68.56 kPa | (3174 m) | 6000 m | Light snow grains Mist | Scattered Cloud @ 300 m Overcast @ 1075 m | ||
| 02:50 UTC | −22°C | N | @ 17 km/h | −31°C | (1800 W/m2) | 68.56 kPa | (3174 m) | Overcast @ 1375 m | ||||
| 01:50 UTC | −22°C | N | @ 15 km/h | −30°C | (1750 W/m2) | 68.58 kPa | (3171 m) | Overcast @ 1375 m | ||||
| 00:50 UTC | −22°C | NNE | @ 19 km/h | −32°C | (1850 W/m2) | 68.61 kPa | (3168 m) | 4800 m | Overcast @ 1375 m | |||
| 2011-01-21 | 23:50 UTC | 3 | −22°C | NNE | @ 17 km/h | −31°C | (1800 W/m2) | 68.63 kPa | (3165 m) | 6000 m | Light snow grains Mist | Overcast @ 1375 m |
| 22:50 UTC | −22°C | NNE | @ 15 km/h | −30°C | (1750 W/m2) | 68.63 kPa | (3165 m) | Light snow snow grains Mist | Overcast @ 1225 m | |||
| 21:50 UTC | −22°C | NNE | @ 20 km/h | −32°C | (1880 W/m2) | 68.66 kPa | (3162 m) | Light snow grains Ice crystals Mist | Overcast @ 1225 m | |||
| 20:50 UTC | −23°C | NNE | @ 20 km/h | −33°C | (1920 W/m2) | 68.68 kPa | (3159 m) | 9000 m | Ice crystals Mist | Broken Cloud @ 1225 m | ||
| 19:50 UTC | −24°C | NE | @ 20 km/h | −35°C | (1950 W/m2) | 68.71 kPa | (3156 m) | 8000 m | Mist | Broken Cloud @ 1225 m | ||
| 18:50 UTC | −25°C | NE | @ 20 km/h | −36°C | (1990 W/m2) | 68.74 kPa | (3153 m) | Unrestricted | Ice crystals | Few Clouds @ 150 m Scattered Cloud @ 1525 m | ||
| 17:50 UTC | −25°C | NE | @ 19 km/h | −35°C | (1950 W/m2) | 68.76 kPa | (3150 m) | Few Clouds @ 150 m Broken Cloud @ 1525 m | ||||
| 17:26 UTC | −25°C | NE | @ 22 km/h | −36°C | (2020 W/m2) | 68.76 kPa | (3150 m) | 8000 m | Ice crystals Mist | Scattered Cloud @ 150 m Broken Cloud @ 1525 m | ||
| 16:50 UTC | −24°C | NNE | @ 20 km/h | −35°C | (1950 W/m2) | 68.79 kPa | (3148 m) | 1600 m | Few Clouds @ 0 m Overcast @ 150 m | |||
| 16:35 UTC | −25°C | NNE | @ 17 km/h | −35°C | (1900 W/m2) | 68.79 kPa | (3148 m) | 2400 m | Few Clouds @ 0 m Overcast @ 150 m | |||
| 15:50 UTC | −26°C | NNE | @ 17 km/h | −36°C | (1930 W/m2) | 68.81 kPa | (3145 m) | 3200 m | Broken Cloud @ 225 m Broken Cloud @ 1525 m | |||
| 15:25 UTC | −25°C | NNE | @ 15 km/h | −34°C | (1850 W/m2) | 68.81 kPa | (3145 m) | Broken Cloud @ 225 m Broken Cloud @ 1525 m | ||||
| 14:50 UTC | −26°C | NNE | @ 17 km/h | −36°C | (1930 W/m2) | 68.84 kPa | (3142 m) | Unrestricted | Ice crystals | Scattered Cloud @ 225 m Broken Cloud @ 1525 m | ||
| 11:50 UTC | −26°C | NNE | @ 17 km/h | −36°C | (1930 W/m2) | 68.94 kPa | (3130 m) | 2400 m | Ice crystals Mist | Few Clouds @ 0 m Broken Cloud @ 225 m Broken Cloud @ 1525 m | ||
| 10:50 UTC | −25°C | NNE | @ 19 km/h | −35°C | (1950 W/m2) | 68.94 kPa | (3130 m) | 4800 m | Ice crystals | Broken Cloud @ 225 m Broken Cloud @ 1525 m | ||
| 09:50 UTC | −26°C | N | @ 17 km/h | −36°C | (1930 W/m2) | 68.97 kPa | (3127 m) | Broken Cloud @ 225 m Broken Cloud @ 1525 m | ||||
| 08:50 UTC | −26°C | N | @ 20 km/h | −37°C | (2020 W/m2) | 68.99 kPa | (3124 m) | Broken Cloud @ 225 m Broken Cloud @ 1525 m | ||||
| 07:50 UTC | −26°C | NNE | @ 19 km/h | −37°C | (1980 W/m2) | 69.02 kPa | (3121 m) | 6000 m | Broken Cloud @ 225 m Broken Cloud @ 1525 m | |||
| 06:50 UTC | −26°C | NNE | @ 17 km/h | −36°C | (1930 W/m2) | 69.04 kPa | (3119 m) | Broken Cloud @ 225 m Broken Cloud @ 1525 m | ||||
| 05:50 UTC | −27°C | NNE | @ 17 km/h | −37°C | (1970 W/m2) | 69.04 kPa | (3119 m) | Unrestricted | Broken Cloud @ 225 m Broken Cloud @ 1525 m | |||
| 04:50 UTC | −26°C | NNE | @ 15 km/h | −35°C | (1880 W/m2) | 69.07 kPa | (3116 m) | Fair | Broken Cloud @ 225 m Broken Cloud @ 1525 m | |||
| 04:20 UTC | −26°C | NNE | @ 15 km/h | −35°C | (1880 W/m2) | 69.07 kPa | (3116 m) | 4800 m | Ice crystals | Broken Cloud @ 225 m | ||
| 03:50 UTC | −26°C | NE | @ 13 km/h | −35°C | (1830 W/m2) | 69.07 kPa | (3116 m) | Unrestricted | Fair | Broken Cloud @ 225 m | ||
| 02:50 UTC | −27°C | NNE | @ 6 km/h | −32°C | (1530 W/m2) | 69.09 kPa | (3113 m) | Broken Cloud @ 225 m Broken Cloud @ 1525 m | ||||
| 01:50 UTC | −27°C | NNE | @ 11 km/h | −35°C | (1790 W/m2) | 69.14 kPa | (3107 m) | Scattered Cloud @ 225 m Broken Cloud @ 1525 m | ||||
| 00:50 UTC | −26°C | NNE | @ 17 km/h | −36°C | (1930 W/m2) | 69.14 kPa | (3107 m) | Scattered Cloud @ 225 m Broken Cloud @ 1525 m | ||||
| 00:34 UTC | −26°C | NNE | @ 15 km/h | −35°C | (1880 W/m2) | 69.14 kPa | (3107 m) | Scattered Cloud @ 225 m Broken Cloud @ 1525 m | ||||
| 2011-01-20 | 23:50 UTC | 3 | −26°C | NNE | @ 13 km/h | −35°C | (1830 W/m2) | 69.17 kPa | (3104 m) | 6000 m | Ice crystals Mist | Overcast @ 225 m |
| 22:50 UTC | −26°C | NNE | @ 17 km/h | −36°C | (1930 W/m2) | 69.19 kPa | (3101 m) | 9000 m | Mist | Overcast @ 225 m | ||
| 19:50 UTC | −26°C | NE | @ 13 km/h | −35°C | (1830 W/m2) | 69.22 kPa | (3098 m) | Unrestricted | Fair | Few Clouds @ 450 m Broken Cloud @ 2450 m | ||
| 18:50 UTC | −27°C | NE | @ 15 km/h | −37°C | (1910 W/m2) | 69.25 kPa | (3095 m) | Few Clouds @ 250 m Few Clouds @ 1825 m Broken Cloud @ 3050 m | ||||
| 17:50 UTC | −27°C | NE | @ 13 km/h | −36°C | (1860 W/m2) | 69.25 kPa | (3095 m) | Few Clouds @ 250 m Scattered Cloud @ 1825 m Broken Cloud @ 3050 m | ||||
| 16:50 UTC | −27°C | NE | @ 15 km/h | −37°C | (1910 W/m2) | 69.25 kPa | (3095 m) | Few Clouds @ 250 m Scattered Cloud @ 1825 m | ||||
| 15:50 UTC | −27°C | NE | @ 13 km/h | −36°C | (1860 W/m2) | 69.27 kPa | (3093 m) | Few Clouds @ 250 m Scattered Cloud @ 1825 m | ||||
| 14:50 UTC | −26°C | NE | @ 15 km/h | −35°C | (1880 W/m2) | 69.27 kPa | (3093 m) | Scattered Cloud @ 250 m Broken Cloud @ 1825 m | ||||
| 11:50 UTC | −26°C | NE | @ 11 km/h | −34°C | (1760 W/m2) | 69.32 kPa | (3087 m) | Few Clouds @ 50 m Scattered Cloud @ 250 m Broken Cloud @ 1825 m | ||||
| 08:50 UTC | −27°C | NE | @ 19 km/h | −38°C | (2010 W/m2) | 69.35 kPa | (3084 m) | Ice crystals | Few Clouds @ 250 m Broken Cloud @ 1825 m | |||
| 07:50 UTC | −27°C | NE | @ 17 km/h | −37°C | (1970 W/m2) | 69.37 kPa | (3081 m) | Scattered Cloud @ 250 m Broken Cloud @ 1825 m | ||||
| 06:50 UTC | −26°C | NE | @ 20 km/h | −37°C | (2020 W/m2) | 69.37 kPa | (3081 m) | 6000 m | Ice crystals Mist | Scattered Cloud @ 250 m Broken Cloud @ 1825 m | ||
| 06:25 UTC | −27°C | NE | @ 20 km/h | −38°C | (2060 W/m2) | 69.37 kPa | (3081 m) | 4800 m | Scattered Cloud @ 250 m Broken Cloud @ 1825 m | |||
| 04:37 UTC | −26°C | NE | @ 20 km/h | −37°C | (2020 W/m2) | 69.40 kPa | (3078 m) | 2400 m | Few Clouds @ 0 m Scattered Cloud @ 250 m Broken Cloud @ 1825 m | |||
| 04:15 UTC | −27°C | NE | @ 20 km/h | −38°C | (2060 W/m2) | 69.40 kPa | (3078 m) | 4000 m | Few Clouds @ 0 m Scattered Cloud @ 250 m Broken Cloud @ 1825 m | |||
| 03:50 UTC | −27°C | NE | @ 20 km/h | −38°C | (2060 W/m2) | 69.42 kPa | (3075 m) | 3200 m | Few Clouds @ 0 m Broken Cloud @ 250 m Broken Cloud @ 600 m | |||
| 03:20 UTC | −27°C | NE | @ 22 km/h | −39°C | (2090 W/m2) | 69.42 kPa | (3075 m) | Few Clouds @ 0 m Scattered Cloud @ 250 m Broken Cloud @ 600 m | ||||
| 02:50 UTC | −27°C | NE | @ 19 km/h | −38°C | (2010 W/m2) | 69.45 kPa | (3072 m) | 1600 m | Few Clouds @ 0 m Overcast @ 250 m | |||
| 02:38 UTC | −27°C | NE | @ 20 km/h | −38°C | (2060 W/m2) | 69.45 kPa | (3072 m) | Few Clouds @ 0 m Overcast @ 275 m | ||||
| 02:20 UTC | −27°C | NE | @ 22 km/h | −39°C | (2090 W/m2) | 69.45 kPa | (3072 m) | 3200 m | Broken Cloud @ 275 m | |||
| 01:50 UTC | −27°C | NE | @ 20 km/h | −38°C | (2060 W/m2) | 69.48 kPa | (3069 m) | Unrestricted | Fair | Broken Cloud @ 300 m Broken Cloud @ 1825 m | ||
| 00:50 UTC | −27°C | ENE | @ 22 km/h | −39°C | (2090 W/m2) | 69.48 kPa | (3069 m) | Broken Cloud @ 300 m Broken Cloud @ 1825 m | ||||
| 2011-01-19 | 23:50 UTC | 3 | −27°C | ENE | @ 22 km/h | −39°C | (2090 W/m2) | 69.50 kPa | (3067 m) | Unrestricted | Fair | Broken Cloud @ 300 m Broken Cloud @ 1825 m |
| 23:22 UTC | −27°C | ENE | @ 19 km/h | −38°C | (2010 W/m2) | 69.50 kPa | (3067 m) | Broken Cloud @ 300 m Broken Cloud @ 1825 m | ||||
| 22:50 UTC | −27°C | ENE | @ 20 km/h | −38°C | (2060 W/m2) | 69.50 kPa | (3067 m) | Few Clouds @ 300 m Few Clouds @ 1825 m | ||||
| 19:50 UTC | −27°C | ENE | @ 22 km/h | −39°C | (2090 W/m2) | 69.55 kPa | (3061 m) | Few Clouds @ 2450 m | ||||
| 18:50 UTC | −27°C | ENE | @ 22 km/h | −39°C | (2090 W/m2) | 69.55 kPa | (3061 m) | Few Clouds @ 2450 m | ||||
| 17:50 UTC | −27°C | ENE | @ 22 km/h | −39°C | (2090 W/m2) | 69.58 kPa | (3058 m) | Few Clouds @ 2450 m | ||||
| 16:50 UTC | −27°C | ENE | @ 24 km/h | −39°C | (2130 W/m2) | 69.58 kPa | (3058 m) | Few Clouds @ 2450 m | ||||
| 15:50 UTC | −27°C | ENE | @ 20 km/h | −38°C | (2060 W/m2) | 69.60 kPa | (3055 m) | Few Clouds @ 2450 m | ||||
| 14:50 UTC | −27°C | E | @ 24 km/h | −39°C | (2130 W/m2) | 69.65 kPa | (3049 m) | Few Clouds @ 2450 m | ||||
| 13:50 UTC | −27°C | E | @ 22 km/h | −39°C | (2090 W/m2) | 69.68 kPa | (3046 m) | Few Clouds @ 2450 m | ||||
| 11:50 UTC | −27°C | E | @ 24 km/h | −39°C | (2130 W/m2) | 69.76 kPa | (3038 m) | Few Clouds @ 2450 m | ||||
| 06:50 UTC | −27°C | NE | @ 20 km/h | −38°C | (2060 W/m2) | 69.86 kPa | (3026 m) | Few Clouds @ 2450 m | ||||
| 05:50 UTC | −27°C | NE | @ 20 km/h | −38°C | (2060 W/m2) | 69.86 kPa | (3026 m) | Few Clouds @ 2450 m | ||||
| 04:50 UTC | −28°C | NE | @ 22 km/h | −40°C | (2130 W/m2) | 69.88 kPa | (3023 m) | Few Clouds @ 125 m Few Clouds @ 2450 m | ||||
| 03:50 UTC | −28°C | NE | @ 22 km/h | −40°C | (2130 W/m2) | 69.88 kPa | (3023 m) | Few Clouds @ 125 m Few Clouds @ 2450 m | ||||
| 02:50 UTC | −28°C | NE | @ 20 km/h | −40°C | (2090 W/m2) | 69.86 kPa | (3026 m) | Few Clouds @ 925 m Few Clouds @ 2450 m | ||||
| 01:50 UTC | −28°C | ENE | @ 15 km/h | −38°C | (1950 W/m2) | 69.88 kPa | (3023 m) | Few Clouds @ 2450 m | ||||
| 00:50 UTC | −28°C | ENE | @ 15 km/h | −38°C | (1950 W/m2) | 69.91 kPa | (3021 m) | Few Clouds @ 2450 m | ||||
| 2011-01-18 | 23:50 UTC | 3 | −28°C | ENE | @ 15 km/h | −38°C | (1950 W/m2) | 69.93 kPa | (3018 m) | Unrestricted | Fair | Few Clouds @ 2450 m |
| 22:50 UTC | −28°C | NE | @ 15 km/h | −38°C | (1950 W/m2) | 69.93 kPa | (3018 m) | Few Clouds @ 2450 m | ||||
| 21:50 UTC | −28°C | NE | @ 15 km/h | −38°C | (1950 W/m2) | 69.93 kPa | (3018 m) | Few Clouds @ 2450 m | ||||
| 20:50 UTC | −28°C | NE | @ 15 km/h | −38°C | (1950 W/m2) | 69.91 kPa | (3021 m) | Few Clouds @ 2450 m | ||||
| 19:50 UTC | −28°C | NE | @ 15 km/h | −38°C | (1950 W/m2) | 69.91 kPa | (3021 m) | Few Clouds @ 2450 m | ||||
| 18:50 UTC | −27°C | ENE | @ 9 km/h | −34°C | (1720 W/m2) | 69.91 kPa | (3021 m) | Few Clouds @ 300 m Few Clouds @ 2450 m | ||||
| 17:50 UTC | −27°C | ENE | @ 13 km/h | −36°C | (1860 W/m2) | 69.91 kPa | (3021 m) | Few Clouds @ 275 m | ||||
| 16:50 UTC | −26°C | E | @ 13 km/h | −35°C | (1830 W/m2) | 69.91 kPa | (3021 m) | Scattered Cloud @ 275 m | ||||
| 16:15 UTC | −26°C | E | @ 9 km/h | −33°C | (1690 W/m2) | 69.91 kPa | (3021 m) | Scattered Cloud @ 275 m | ||||
| 15:50 UTC | −26°C | ESE | @ 13 km/h | −35°C | (1830 W/m2) | 69.91 kPa | (3021 m) | Few Clouds @ 100 m Broken Cloud @ 250 m | ||||
| 14:50 UTC | −26°C | E | @ 17 km/h | −36°C | (1930 W/m2) | 69.93 kPa | (3018 m) | Scattered Cloud @ 100 m Broken Cloud @ 250 m | ||||
| 14:08 UTC | −27°C | SE | @ 15 km/h | −37°C | (1910 W/m2) | 69.96 kPa | (3015 m) | Scattered Cloud @ 100 m Broken Cloud @ 250 m | ||||
| 13:50 UTC | −27°C | SE | @ 17 km/h | −37°C | (1970 W/m2) | 69.96 kPa | (3015 m) | Broken Cloud @ 100 m Broken Cloud @ 175 m | ||||
| 11:50 UTC | −26°C | ESE | @ 11 km/h | −34°C | (1760 W/m2) | 69.96 kPa | (3015 m) | Broken Cloud @ 100 m Overcast @ 175 m | ||||
| 10:50 UTC | −25°C | SE | @ 11 km/h | −33°C | (1730 W/m2) | 69.99 kPa | (3012 m) | 9000 m | Mist | Broken Cloud @ 100 m Overcast @ 175 m | ||
| 10:40 UTC | −25°C | SE | @ 11 km/h | −33°C | (1730 W/m2) | 69.99 kPa | (3012 m) | 4800 m | Broken Cloud @ 100 m Overcast @ 175 m | |||
| 10:25 UTC | −25°C | ESE | @ 11 km/h | −33°C | (1730 W/m2) | 69.99 kPa | (3012 m) | 3200 m | Broken Cloud @ 100 m Overcast @ 175 m | |||
| 09:50 UTC | −25°C | SSE | @ 11 km/h | −33°C | (1730 W/m2) | 69.99 kPa | (3012 m) | 1200 m | Broken Cloud @ 100 m Overcast @ 175 m | |||
| 09:27 UTC | −25°C | SSE | @ 11 km/h | −33°C | (1730 W/m2) | 69.99 kPa | (3012 m) | 1600 m | Broken Cloud @ 100 m Overcast @ 175 m | |||
| 08:50 UTC | −25°C | SSE | @ 11 km/h | −33°C | (1730 W/m2) | 69.99 kPa | (3012 m) | 4800 m | Scattered Cloud @ 100 m Overcast @ 175 m | |||
| 07:50 UTC | −25°C | SSE | @ 9 km/h | −32°C | (1660 W/m2) | 70.01 kPa | (3009 m) | Unrestricted | Fair | Scattered Cloud @ 100 m Broken Cloud @ 225 m Broken Cloud @ 1825 m | ||
| 06:50 UTC | −24°C | SSE | @ 6 km/h | −28°C | (1460 W/m2) | 70.01 kPa | (3009 m) | Few Clouds @ 100 m Broken Cloud @ 250 m Broken Cloud @ 1825 m | ||||
| 05:50 UTC | −25°C | SSE | @ 9 km/h | −32°C | (1660 W/m2) | 70.01 kPa | (3009 m) | Light snow grains | Few Clouds @ 100 m Broken Cloud @ 250 m Broken Cloud @ 1825 m | |||
| 04:50 UTC | −25°C | SE | @ 11 km/h | −33°C | (1730 W/m2) | 70.04 kPa | (3006 m) | Fair | Broken Cloud @ 300 m Broken Cloud @ 1825 m | |||
| 03:50 UTC | −24°C | N | @ 6 km/h | −28°C | (1460 W/m2) | 70.06 kPa | (3003 m) | Broken Cloud @ 300 m | ||||
| 02:50 UTC | −23°C | Calm | — | 70.06 kPa | (3003 m) | Broken Cloud @ 300 m Broken Cloud @ 1825 m | ||||||
| 01:50 UTC | −24°C | Calm | — | 70.09 kPa | (3001 m) | Broken Cloud @ 300 m Broken Cloud @ 1825 m | ||||||
| 00:50 UTC | −24°C | Calm | — | 70.09 kPa | (3001 m) | Broken Cloud @ 300 m | ||||||
| 2011-01-17 | 23:50 UTC | 3 | −25°C | Calm | — | 70.11 kPa | (2998 m) | Unrestricted | Fair | Broken Cloud @ 300 m | ||
| 22:50 UTC | −25°C | Calm | — | 70.11 kPa | (2998 m) | Broken Cloud @ 300 m | ||||||
| 21:50 UTC | −25°C | Calm | — | 70.09 kPa | (3001 m) | Broken Cloud @ 300 m | ||||||
| 20:50 UTC | −25°C | E | @ 7 km/h | −31°C | (1580 W/m2) | 70.11 kPa | (2998 m) | Broken Cloud @ 300 m | ||||
| 19:50 UTC | −25°C | Calm | — | 70.14 kPa | (2995 m) | Broken Cloud @ 300 m | ||||||
| 18:50 UTC | −26°C | Calm | — | 70.11 kPa | (2998 m) | Broken Cloud @ 325 m | ||||||
| 18:02 UTC | −27°C | Calm | — | 70.11 kPa | (2998 m) | Broken Cloud @ 375 m | ||||||
| 17:50 UTC | −27°C | Calm | — | 70.11 kPa | (2998 m) | Scattered Cloud @ 450 m | ||||||
| 17:05 UTC | −27°C | E | @ 6 km/h | −32°C | (1530 W/m2) | 70.11 kPa | (2998 m) | Scattered Cloud @ 600 m | ||||
| 16:50 UTC | −27°C | ENE | @ 6 km/h | −32°C | (1530 W/m2) | 70.11 kPa | (2998 m) | Broken Cloud @ 600 m | ||||
| 16:24 UTC | −27°C | E | @ 6 km/h | −32°C | (1530 W/m2) | 70.11 kPa | (2998 m) | Broken Cloud @ 600 m | ||||
| 15:50 UTC | −27°C | ENE | @ 6 km/h | −32°C | (1530 W/m2) | 70.11 kPa | (2998 m) | Scattered Cloud @ 600 m | ||||
| 14:50 UTC | −27°C | ENE | @ 6 km/h | −32°C | (1530 W/m2) | 70.11 kPa | (2998 m) | Few Clouds @ 600 m Scattered Cloud @ 2450 m | ||||
| 11:50 UTC | −27°C | E | @ 7 km/h | −33°C | (1640 W/m2) | 70.14 kPa | (2995 m) | Few Clouds @ 925 m Few Clouds @ 2450 m | ||||
| 08:50 UTC | −27°C | E | @ 6 km/h | −32°C | (1530 W/m2) | 70.09 kPa | (3001 m) | Few Clouds @ 925 m Few Clouds @ 2450 m | ||||
| 07:50 UTC | −27°C | E | @ 7 km/h | −33°C | (1640 W/m2) | 70.09 kPa | (3001 m) | Few Clouds @ 925 m Few Clouds @ 2450 m | ||||
| 06:50 UTC | −27°C | E | @ 9 km/h | −34°C | (1720 W/m2) | 70.09 kPa | (3001 m) | Few Clouds @ 925 m Few Clouds @ 2450 m | ||||
| 05:50 UTC | −27°C | Calm | — | 70.06 kPa | (3003 m) | Few Clouds @ 925 m Few Clouds @ 2450 m | ||||||
| 04:50 UTC | −27°C | Calm | — | 70.06 kPa | (3003 m) | Few Clouds @ 1225 m Few Clouds @ 2450 m | ||||||
| 03:50 UTC | −27°C | ESE | @ 13 km/h | −36°C | (1860 W/m2) | 70.09 kPa | (3001 m) | Few Clouds @ 2450 m | ||||
| 02:50 UTC | −27°C | ESE | @ 9 km/h | −34°C | (1720 W/m2) | 70.06 kPa | (3003 m) | Few Clouds @ 2450 m | ||||
| 01:50 UTC | −27°C | E | @ 9 km/h | −34°C | (1720 W/m2) | 70.06 kPa | (3003 m) | Few Clouds @ 2450 m | ||||
| 00:50 UTC | −28°C | ESE | @ 11 km/h | −36°C | (1820 W/m2) | 70.06 kPa | (3003 m) | Few Clouds @ 2450 m | ||||
| 2011-01-16 | 23:50 UTC | 3 | −27°C | ESE | @ 15 km/h | −37°C | (1910 W/m2) | 70.04 kPa | (3006 m) | Unrestricted | Fair | Few Clouds @ 2450 m |
| 22:50 UTC | −27°C | ESE | @ 13 km/h | −36°C | (1860 W/m2) | 70.01 kPa | (3009 m) | Few Clouds @ 2450 m | ||||
| 19:50 UTC | −27°C | ESE | @ 13 km/h | −36°C | (1860 W/m2) | 69.99 kPa | (3012 m) | Few Clouds @ 600 m Few Clouds @ 2450 m | ||||
| 18:50 UTC | −28°C | ESE | @ 13 km/h | −37°C | (1890 W/m2) | 69.96 kPa | (3015 m) | Few Clouds @ 600 m Few Clouds @ 2450 m | ||||
| 17:50 UTC | −28°C | SE | @ 19 km/h | −39°C | (2050 W/m2) | 69.93 kPa | (3018 m) | Few Clouds @ 600 m Few Clouds @ 2450 m | ||||
| 16:50 UTC | −28°C | ESE | @ 19 km/h | −39°C | (2050 W/m2) | 69.93 kPa | (3018 m) | Few Clouds @ 600 m Few Clouds @ 2450 m | ||||
| 16:12 UTC | −28°C | ESE | @ 22 km/h | −40°C | (2130 W/m2) | 69.91 kPa | (3021 m) | Few Clouds @ 600 m Few Clouds @ 2450 m | ||||
| 15:50 UTC | −28°C | ESE | @ 24 km/h | −41°C | (2170 W/m2) | 69.91 kPa | (3021 m) | 2400 m | Ice crystals Blowing snow | Few Clouds @ 0 m | ||
| 15:35 UTC | −28°C | ESE | @ 24 km/h | −41°C | (2170 W/m2) | 69.91 kPa | (3021 m) | Few Clouds @ 0 m | ||||
| 14:50 UTC | −28°C | SE | @ 22 km/h | −40°C | (2130 W/m2) | 69.91 kPa | (3021 m) | Unrestricted | Fair | Few Clouds @ 600 m Few Clouds @ 2450 m | ||
| 13:50 UTC | −28°C | SSE | @ 17 km/h | −39°C | (2000 W/m2) | 69.88 kPa | (3023 m) | Few Clouds @ 600 m Few Clouds @ 2450 m | ||||
| 11:50 UTC | −28°C | SSE | @ 13 km/h | −37°C | (1890 W/m2) | 69.86 kPa | (3026 m) | Few Clouds @ 600 m Few Clouds @ 2450 m | ||||
| 05:50 UTC | −27°C | SE | @ 19 km/h | −38°C | (2010 W/m2) | 69.78 kPa | (3035 m) | Few Clouds @ 925 m Few Clouds @ 2450 m | ||||
| 2011-01-15 | 23:50 UTC | 3 | −28°C | SSE | @ 19 km/h | −39°C | (2050 W/m2) | 69.73 kPa | (3041 m) | Unrestricted | Fair | Few Clouds @ 2450 m |
| 17:50 UTC | −28°C | SE | @ 20 km/h | −40°C | (2090 W/m2) | 69.63 kPa | (3052 m) | Few Clouds @ 925 m | ||||
| 11:50 UTC | −27°C | SE | @ 20 km/h | −38°C | (2060 W/m2) | 69.58 kPa | (3058 m) | Few Clouds @ 925 m Few Clouds @ 1825 m | ||||
| 05:50 UTC | −25°C | ESE | @ 22 km/h | −36°C | (2020 W/m2) | 69.55 kPa | (3061 m) | Broken Cloud @ 975 m | ||||
| 2011-01-14 | 23:50 UTC | 3 | −23°C | NE | @ 17 km/h | −32°C | (1830 W/m2) | 69.53 kPa | (3064 m) | 9000 m | Mist | Broken Cloud @ 600 m Overcast @ 925 m |
| 17:50 UTC | −23°C | E | @ 13 km/h | −31°C | (1730 W/m2) | 69.48 kPa | (3069 m) | 6000 m | Light snow grains Mist | Overcast @ 600 m | ||
| 11:50 UTC | −23°C | ENE | @ 11 km/h | −30°C | (1670 W/m2) | 69.42 kPa | (3075 m) | 4800 m | Overcast @ 600 m | |||
| 05:50 UTC | −22°C | SE | @ 6 km/h | −26°C | (1410 W/m2) | 69.32 kPa | (3087 m) | 8000 m | Light snow grains | Broken Cloud @ 600 m Overcast @ 925 m | ||
| 03:50 UTC | −22°C | ENE | @ 7 km/h | −27°C | (1500 W/m2) | 69.30 kPa | (3090 m) | Few Clouds @ 300 m Broken Cloud @ 600 m Overcast @ 925 m | ||||
| 02:50 UTC | −22°C | ENE | @ 13 km/h | −30°C | (1700 W/m2) | 69.27 kPa | (3093 m) | 6000 m | Broken Cloud @ 550 m | |||
| 01:50 UTC | −22°C | NE | @ 15 km/h | −30°C | (1750 W/m2) | 69.25 kPa | (3095 m) | Overcast @ 550 m | ||||
| 00:50 UTC | −22°C | N | @ 13 km/h | −30°C | (1700 W/m2) | 69.25 kPa | (3095 m) | 8000 m | Overcast @ 550 m | |||
| 2011-01-13 | 23:50 UTC | 3 | −22°C | N | @ 17 km/h | −31°C | (1800 W/m2) | 69.22 kPa | (3098 m) | 6000 m | Light snow grains | Overcast @ 550 m |
| 22:50 UTC | −21°C | N | @ 15 km/h | −29°C | (1720 W/m2) | 69.19 kPa | (3101 m) | Overcast @ 525 m | ||||
| 20:31 UTC | −21°C | N | @ 15 km/h | −29°C | (1720 W/m2) | 69.14 kPa | (3107 m) | Overcast @ 525 m | ||||
| 19:50 UTC | −21°C | WNW | @ 13 km/h | −29°C | (1670 W/m2) | 69.12 kPa | (3110 m) | 8000 m | Overcast @ 425 m | |||
| 18:50 UTC | −21°C | Calm | — | 69.09 kPa | (3113 m) | Overcast @ 425 m | ||||||
| 18:17 UTC | −21°C | Calm | — | 69.07 kPa | (3116 m) | Unrestricted | Overcast @ 400 m | |||||
| 17:50 UTC | −22°C | Calm | — | 69.07 kPa | (3116 m) | Broken Cloud @ 225 m Overcast @ 1225 m | ||||||
| 16:50 UTC | −22°C | N | @ 9 km/h | −28°C | (1580 W/m2) | 69.04 kPa | (3119 m) | Broken Cloud @ 250 m Overcast @ 1225 m | ||||
| 16:20 UTC | −21°C | N | @ 9 km/h | −27°C | (1550 W/m2) | 69.02 kPa | (3121 m) | Broken Cloud @ 250 m Overcast @ 1225 m | ||||
| 15:50 UTC | −22°C | N | @ 9 km/h | −28°C | (1580 W/m2) | 69.02 kPa | (3121 m) | Scattered Cloud @ 450 m Broken Cloud @ 1225 m | ||||
| 15:33 UTC | −21°C | NNE | @ 9 km/h | −27°C | (1550 W/m2) | 69.02 kPa | (3121 m) | Scattered Cloud @ 450 m Broken Cloud @ 1225 m | ||||
| 14:50 UTC | −22°C | Calm | — | 68.99 kPa | (3124 m) | Broken Cloud @ 450 m Broken Cloud @ 1225 m | ||||||
| 14:31 UTC | −22°C | N | @ 6 km/h | −26°C | (1410 W/m2) | 68.99 kPa | (3124 m) | Broken Cloud @ 450 m Overcast @ 1225 m | ||||
| 13:50 UTC | −22°C | N | @ 6 km/h | −26°C | (1410 W/m2) | 68.99 kPa | (3124 m) | Overcast @ 1225 m | ||||
| 11:50 UTC | −21°C | E | @ 9 km/h | −27°C | (1550 W/m2) | 68.97 kPa | (3127 m) | Overcast @ 925 m | ||||
| 09:50 UTC | −21°C | ENE | @ 9 km/h | −27°C | (1550 W/m2) | 68.94 kPa | (3130 m) | Fair | Broken Cloud @ 925 m | |||
| 08:50 UTC | −21°C | ENE | @ 11 km/h | −28°C | (1610 W/m2) | 68.91 kPa | (3133 m) | Light snow grains | Broken Cloud @ 875 m | |||
| 06:50 UTC | −21°C | E | @ 13 km/h | −29°C | (1670 W/m2) | 68.89 kPa | (3136 m) | Overcast @ 750 m | ||||
| 04:50 UTC | −22°C | E | @ 20 km/h | −32°C | (1880 W/m2) | 68.86 kPa | (3139 m) | Fair | Broken Cloud @ 675 m | |||
| 03:50 UTC | −22°C | E | @ 22 km/h | −33°C | (1920 W/m2) | 68.86 kPa | (3139 m) | Light snow grains | Overcast @ 600 m | |||
| 02:50 UTC | −22°C | E | @ 22 km/h | −33°C | (1920 W/m2) | 68.86 kPa | (3139 m) | Overcast @ 675 m | ||||
| 01:50 UTC | −22°C | E | @ 24 km/h | −33°C | (1950 W/m2) | 68.86 kPa | (3139 m) | Fair | Overcast @ 750 m | |||
| 00:50 UTC | −22°C | E | @ 22 km/h | −33°C | (1920 W/m2) | 68.86 kPa | (3139 m) | Broken Cloud @ 750 m | ||||
| 00:20 UTC | −23°C | ESE | @ 17 km/h | −32°C | (1830 W/m2) | 68.89 kPa | (3136 m) | Broken Cloud @ 750 m | ||||
| 2011-01-12 | 23:50 UTC | 3 | −24°C | ESE | @ 19 km/h | −34°C | (1910 W/m2) | 68.89 kPa | (3136 m) | Unrestricted | Fair | Scattered Cloud @ 750 m |
| 23:18 UTC | −23°C | ESE | @ 19 km/h | −33°C | (1880 W/m2) | 68.89 kPa | (3136 m) | Scattered Cloud @ 750 m | ||||
| 22:50 UTC | −23°C | E | @ 17 km/h | −32°C | (1830 W/m2) | 68.89 kPa | (3136 m) | Broken Cloud @ 750 m | ||||
| 21:50 UTC | −23°C | E | @ 24 km/h | −34°C | (1990 W/m2) | 68.91 kPa | (3133 m) | Broken Cloud @ 750 m | ||||
| 20:50 UTC | −22°C | E | @ 26 km/h | −33°C | (1980 W/m2) | 68.91 kPa | (3133 m) | Broken Cloud @ 750 m | ||||
| 19:50 UTC | −22°C | ESE | @ 24 km/h | −33°C | (1950 W/m2) | 68.91 kPa | (3133 m) | Broken Cloud @ 750 m | ||||
| 18:50 UTC | −22°C | E | @ 20 km/h | −32°C | (1880 W/m2) | 68.91 kPa | (3133 m) | Broken Cloud @ 750 m | ||||
| 17:50 UTC | −22°C | E | @ 22 km/h | −33°C | (1920 W/m2) | 68.89 kPa | (3136 m) | Broken Cloud @ 750 m | ||||
| 16:50 UTC | −22°C | ESE | @ 19 km/h | −32°C | (1850 W/m2) | 68.91 kPa | (3133 m) | Broken Cloud @ 750 m | ||||
| 15:50 UTC | −21°C | E | @ 26 km/h | −32°C | (1950 W/m2) | 68.91 kPa | (3133 m) | Light snow grains | Broken Cloud @ 750 m | |||
| 14:50 UTC | −20°C | ENE | @ 20 km/h | −30°C | (1820 W/m2) | 68.94 kPa | (3130 m) | Broken Cloud @ 750 m | ||||
| 13:50 UTC | −20°C | ENE | @ 19 km/h | −29°C | (1780 W/m2) | 68.94 kPa | (3130 m) | Fair | Overcast @ 750 m | |||
| 11:50 UTC | −21°C | E | @ 15 km/h | −29°C | (1720 W/m2) | 68.97 kPa | (3127 m) | Overcast @ 750 m | ||||
| 08:50 UTC | −25°C | ESE | @ 19 km/h | −35°C | (1950 W/m2) | 69.02 kPa | (3121 m) | Broken Cloud @ 600 m Broken Cloud @ 2450 m | ||||
| 07:50 UTC | −26°C | ESE | @ 20 km/h | −37°C | (2020 W/m2) | 69.04 kPa | (3119 m) | Broken Cloud @ 600 m Broken Cloud @ 2450 m | ||||
| 07:40 UTC | −26°C | ESE | @ 20 km/h | −37°C | (2020 W/m2) | 69.04 kPa | (3119 m) | Broken Cloud @ 600 m Broken Cloud @ 2450 m | ||||
| 06:50 UTC | −26°C | E | @ 24 km/h | −38°C | (2090 W/m2) | 69.04 kPa | (3119 m) | Few Clouds @ 600 m Few Clouds @ 2450 m | ||||
| 05:50 UTC | −26°C | E | @ 26 km/h | −39°C | (2130 W/m2) | 69.04 kPa | (3119 m) | Few Clouds @ 925 m Few Clouds @ 2450 m | ||||
| 04:50 UTC | −25°C | ESE | @ 24 km/h | −37°C | (2060 W/m2) | 69.07 kPa | (3116 m) | Few Clouds @ 925 m Few Clouds @ 2450 m | ||||
| 03:50 UTC | −25°C | ESE | @ 26 km/h | −37°C | (2090 W/m2) | 69.09 kPa | (3113 m) | Few Clouds @ 925 m Few Clouds @ 2450 m | ||||
| 02:50 UTC | −25°C | ESE | @ 28 km/h | −38°C | (2120 W/m2) | 69.14 kPa | (3107 m) | Few Clouds @ 925 m Few Clouds @ 2450 m | ||||
| 01:50 UTC | −24°C | ESE | @ 22 km/h | −35°C | (1990 W/m2) | 69.17 kPa | (3104 m) | Few Clouds @ 925 m Few Clouds @ 2450 m | ||||
| 00:50 UTC | −24°C | ESE | @ 19 km/h | −34°C | (1910 W/m2) | 69.22 kPa | (3098 m) | Few Clouds @ 925 m Few Clouds @ 2450 m | ||||
| 00:28 UTC | −24°C | E | @ 22 km/h | −35°C | (1990 W/m2) | 69.22 kPa | (3098 m) | Scattered Cloud @ 850 m Broken Cloud @ 2450 m | ||||
| 2011-01-11 | 23:50 UTC | 3 | −23°C | E | @ 20 km/h | −33°C | (1920 W/m2) | 69.25 kPa | (3095 m) | Unrestricted | Fair | Broken Cloud @ 825 m Broken Cloud @ 2450 m |
| 22:50 UTC | −22°C | E | @ 22 km/h | −33°C | (1920 W/m2) | 69.27 kPa | (3093 m) | Broken Cloud @ 825 m Broken Cloud @ 2450 m | ||||
| 21:50 UTC | −22°C | E | @ 20 km/h | −32°C | (1880 W/m2) | 69.30 kPa | (3090 m) | Broken Cloud @ 725 m Broken Cloud @ 1525 m Broken Cloud @ 2450 m | ||||
| 20:50 UTC | −23°C | E | @ 20 km/h | −33°C | (1920 W/m2) | 69.35 kPa | (3084 m) | 8000 m | Mist | Broken Cloud @ 725 m Broken Cloud @ 2450 m | ||
| 19:50 UTC | −23°C | ESE | @ 19 km/h | −33°C | (1880 W/m2) | 69.35 kPa | (3084 m) | Light snow grains Mist | Overcast @ 700 m | |||
| 18:50 UTC | −23°C | ESE | @ 13 km/h | −31°C | (1730 W/m2) | 69.40 kPa | (3078 m) | 6000 m | Overcast @ 600 m | |||
| 18:13 UTC | −24°C | ESE | @ 11 km/h | −31°C | (1700 W/m2) | 69.42 kPa | (3075 m) | Overcast @ 550 m | ||||
| 17:50 UTC | −24°C | ESE | @ 15 km/h | −33°C | (1820 W/m2) | 69.42 kPa | (3075 m) | 3200 m | Overcast @ 550 m | |||
| 16:50 UTC | −23°C | NE | @ 19 km/h | −33°C | (1880 W/m2) | 69.42 kPa | (3075 m) | Light snow Mist | Overcast @ 450 m | |||
| 15:50 UTC | −23°C | NE | @ 11 km/h | −30°C | (1670 W/m2) | 69.42 kPa | (3075 m) | Overcast @ 450 m | ||||
| 15:22 UTC | −23°C | NNE | @ 9 km/h | −29°C | (1610 W/m2) | 69.45 kPa | (3072 m) | Overcast @ 450 m | ||||
| 14:50 UTC | −23°C | NNE | @ 13 km/h | −31°C | (1730 W/m2) | 69.45 kPa | (3072 m) | 4800 m | Light snow grains Mist | Overcast @ 600 m | ||
| 13:50 UTC | −23°C | NE | @ 13 km/h | −31°C | (1730 W/m2) | 69.48 kPa | (3069 m) | 6000 m | Overcast @ 600 m | |||
| 11:50 UTC | −22°C | N | @ 17 km/h | −31°C | (1800 W/m2) | 69.48 kPa | (3069 m) | Overcast @ 600 m | ||||
| 09:50 UTC | −23°C | N | @ 17 km/h | −32°C | (1830 W/m2) | 69.48 kPa | (3069 m) | Unrestricted | Light snow grains | Broken Cloud @ 300 m Overcast @ 2450 m | ||
| 08:50 UTC | −23°C | N | @ 17 km/h | −32°C | (1830 W/m2) | 69.48 kPa | (3069 m) | 4800 m | Broken Cloud @ 300 m Broken Cloud @ 2450 m | |||
| 07:50 UTC | −24°C | NNE | @ 13 km/h | −32°C | (1760 W/m2) | 69.48 kPa | (3069 m) | Unrestricted | Broken Cloud @ 300 m Broken Cloud @ 2450 m | |||
| 06:50 UTC | −24°C | NNE | @ 13 km/h | −32°C | (1760 W/m2) | 69.48 kPa | (3069 m) | Broken Cloud @ 300 m Broken Cloud @ 2450 m | ||||
| 05:50 UTC | −25°C | N | @ 15 km/h | −34°C | (1850 W/m2) | 69.45 kPa | (3072 m) | 4800 m | Ice crystals | Broken Cloud @ 300 m Broken Cloud @ 2450 m | ||
| 04:50 UTC | −25°C | NNE | @ 17 km/h | −35°C | (1900 W/m2) | 69.45 kPa | (3072 m) | Unrestricted | Scattered Cloud @ 375 m Broken Cloud @ 2450 m | |||
| 03:50 UTC | −26°C | NNE | @ 15 km/h | −35°C | (1880 W/m2) | 69.45 kPa | (3072 m) | Scattered Cloud @ 375 m Broken Cloud @ 2450 m | ||||
| 02:50 UTC | −26°C | NE | @ 15 km/h | −35°C | (1880 W/m2) | 69.45 kPa | (3072 m) | 9000 m | Ice crystals Mist | Few Clouds @ 375 m Broken Cloud @ 2450 m | ||
| 02:28 UTC | −26°C | NNE | @ 20 km/h | −37°C | (2020 W/m2) | 69.45 kPa | (3072 m) | 4800 m | Few Clouds @ 375 m Broken Cloud @ 2450 m | |||
| 01:50 UTC | −26°C | NNE | @ 15 km/h | −35°C | (1880 W/m2) | 69.45 kPa | (3072 m) | 2400 m | Broken Cloud @ 2450 m | |||
| 00:50 UTC | −26°C | NE | @ 15 km/h | −35°C | (1880 W/m2) | 69.45 kPa | (3072 m) | 4800 m | Broken Cloud @ 2450 m | |||
| 00:42 UTC | −26°C | NE | @ 15 km/h | −35°C | (1880 W/m2) | 69.45 kPa | (3072 m) | 3200 m | Few Clouds @ 375 m Broken Cloud @ 2450 m | |||
| 00:18 UTC | −26°C | NE | @ 17 km/h | −36°C | (1930 W/m2) | 69.45 kPa | (3072 m) | Unrestricted | Ice crystals | Few Clouds @ 375 m Broken Cloud @ 2450 m | ||
| 2011-01-10 | 23:50 UTC | 3 | −26°C | NE | @ 15 km/h | −35°C | (1880 W/m2) | 69.45 kPa | (3072 m) | Unrestricted | Fair | Broken Cloud @ 375 m Broken Cloud @ 2450 m |
| 23:16 UTC | −27°C | NNE | @ 15 km/h | −37°C | (1910 W/m2) | 69.48 kPa | (3069 m) | Broken Cloud @ 375 m Broken Cloud @ 2450 m | ||||
| 22:50 UTC | −27°C | NNE | @ 15 km/h | −37°C | (1910 W/m2) | 69.45 kPa | (3072 m) | Ice crystals | Few Clouds @ 450 m Broken Cloud @ 2450 m | |||
| 21:50 UTC | −26°C | NNE | @ 19 km/h | −37°C | (1980 W/m2) | 69.45 kPa | (3072 m) | Fair | Few Clouds @ 450 m Broken Cloud @ 1825 m | |||
| 21:35 UTC | −26°C | N | @ 19 km/h | −37°C | (1980 W/m2) | 69.42 kPa | (3075 m) | Scattered Cloud @ 450 m Broken Cloud @ 1825 m | ||||
| 20:50 UTC | −25°C | NNE | @ 15 km/h | −34°C | (1850 W/m2) | 69.40 kPa | (3078 m) | Broken Cloud @ 450 m | ||||
| 19:50 UTC | −24°C | NNE | @ 20 km/h | −35°C | (1950 W/m2) | 69.37 kPa | (3081 m) | Light snow grains | Overcast @ 525 m | |||
| 18:50 UTC | −23°C | N | @ 9 km/h | −29°C | (1610 W/m2) | 69.35 kPa | (3084 m) | Overcast @ 550 m | ||||
| 17:50 UTC | −23°C | WNW | @ 15 km/h | −32°C | (1790 W/m2) | 69.32 kPa | (3087 m) | Overcast @ 550 m | ||||
| 16:50 UTC | −23°C | WNW | @ 11 km/h | −30°C | (1670 W/m2) | 69.27 kPa | (3093 m) | 4800 m | Light snow grains Mist | Overcast @ 600 m | ||
| 15:50 UTC | −22°C | WNW | @ 13 km/h | −30°C | (1700 W/m2) | 69.22 kPa | (3098 m) | Light snow Mist | Overcast @ 600 m | |||
| 14:50 UTC | −22°C | N | @ 6 km/h | −26°C | (1410 W/m2) | 69.19 kPa | (3101 m) | Overcast @ 600 m | ||||
| 11:50 UTC | −22°C | N | @ 6 km/h | −26°C | (1410 W/m2) | 69.12 kPa | (3110 m) | Unrestricted | Light snow grains | Broken Cloud @ 600 m | ||
| 10:50 UTC | −22°C | Calm | — | 69.07 kPa | (3116 m) | Overcast @ 600 m | ||||||
| 09:50 UTC | −22°C | W | @ 9 km/h | −28°C | (1580 W/m2) | 69.04 kPa | (3119 m) | 9000 m | Overcast @ 450 m | |||
| 08:50 UTC | −23°C | N | @ 6 km/h | −27°C | (1430 W/m2) | 68.99 kPa | (3124 m) | 8000 m | Overcast @ 450 m | |||
| 07:50 UTC | −23°C | Calm | — | 68.97 kPa | (3127 m) | Unrestricted | Overcast @ 450 m | |||||
| 06:50 UTC | −23°C | NNW | @ 7 km/h | −28°C | (1530 W/m2) | 68.94 kPa | (3130 m) | Overcast @ 450 m | ||||
| 05:50 UTC | −23°C | N | @ 13 km/h | −31°C | (1730 W/m2) | 68.91 kPa | (3133 m) | Overcast @ 450 m | ||||
| 04:50 UTC | −23°C | NE | @ 17 km/h | −32°C | (1830 W/m2) | 68.86 kPa | (3139 m) | Overcast @ 450 m | ||||
| 03:50 UTC | −23°C | NNE | @ 13 km/h | −31°C | (1730 W/m2) | 68.86 kPa | (3139 m) | 9000 m | Broken Cloud @ 450 m | |||
| 02:50 UTC | −23°C | WNW | @ 13 km/h | −31°C | (1730 W/m2) | 68.84 kPa | (3142 m) | 8000 m | Light snow grains Mist | Broken Cloud @ 450 m | ||
| 01:50 UTC | −23°C | N | @ 17 km/h | −32°C | (1830 W/m2) | 68.84 kPa | (3142 m) | Overcast @ 500 m | ||||
| 00:50 UTC | −23°C | NNE | @ 17 km/h | −32°C | (1830 W/m2) | 68.81 kPa | (3145 m) | Mist | Broken Cloud @ 500 m | |||
| 2011-01-09 | 23:50 UTC | 3 | −23°C | NNE | @ 20 km/h | −33°C | (1920 W/m2) | 68.81 kPa | (3145 m) | 4800 m | Light snow grains | Overcast @ 525 m |
| 23:25 UTC | −23°C | NNE | @ 22 km/h | −34°C | (1950 W/m2) | 68.81 kPa | (3145 m) | Overcast @ 525 m | ||||
| 22:50 UTC | −23°C | NE | @ 20 km/h | −33°C | (1920 W/m2) | 68.81 kPa | (3145 m) | 4000 m | Overcast @ 550 m | |||
| 21:50 UTC | −23°C | NE | @ 20 km/h | −33°C | (1920 W/m2) | 68.81 kPa | (3145 m) | Overcast @ 550 m | ||||
| 21:32 UTC | −23°C | ENE | @ 20 km/h | −33°C | (1920 W/m2) | 68.81 kPa | (3145 m) | Overcast @ 550 m | ||||
| 20:50 UTC | −23°C | NE | @ 24 km/h | −34°C | (1990 W/m2) | 68.84 kPa | (3142 m) | 8000 m | Overcast @ 550 m | |||
| 19:50 UTC | −24°C | E | @ 13 km/h | −32°C | (1760 W/m2) | 68.84 kPa | (3142 m) | Unrestricted | Broken Cloud @ 600 m Overcast @ 2450 m | |||
| 18:50 UTC | −26°C | E | @ 15 km/h | −35°C | (1880 W/m2) | 68.84 kPa | (3142 m) | Fair | Broken Cloud @ 750 m Broken Cloud @ 2450 m | |||
| 18:35 UTC | −26°C | E | @ 13 km/h | −35°C | (1830 W/m2) | 68.84 kPa | (3142 m) | Broken Cloud @ 750 m Broken Cloud @ 2450 m | ||||
| 17:50 UTC | −27°C | E | @ 15 km/h | −37°C | (1910 W/m2) | 68.84 kPa | (3142 m) | Few Clouds @ 450 m Few Clouds @ 1075 m Scattered Cloud @ 2450 m | ||||
| 16:50 UTC | −27°C | E | @ 15 km/h | −37°C | (1910 W/m2) | 68.86 kPa | (3139 m) | Few Clouds @ 1075 m Scattered Cloud @ 2450 m | ||||
| 15:50 UTC | −26°C | E | @ 17 km/h | −36°C | (1930 W/m2) | 68.86 kPa | (3139 m) | Scattered Cloud @ 1075 m | ||||
| 14:50 UTC | −26°C | ENE | @ 19 km/h | −37°C | (1980 W/m2) | 68.91 kPa | (3133 m) | Broken Cloud @ 1075 m | ||||
| 13:50 UTC | −25°C | NE | @ 19 km/h | −35°C | (1950 W/m2) | 68.91 kPa | (3133 m) | Broken Cloud @ 1075 m | ||||
| 11:50 UTC | −25°C | NE | @ 19 km/h | −35°C | (1950 W/m2) | 68.94 kPa | (3130 m) | Ice crystals | Broken Cloud @ 1075 m | |||
| 05:50 UTC | −24°C | NE | @ 26 km/h | −36°C | (2060 W/m2) | 68.97 kPa | (3127 m) | 4000 m | Ice crystals Mist | Broken Cloud @ 1075 m | ||
| 2011-01-08 | 23:50 UTC | 3 | −23°C | NNE | @ 22 km/h | −34°C | (1950 W/m2) | 69.02 kPa | (3121 m) | 4000 m | Light snow grains | Overcast @ 925 m |
| 17:50 UTC | −24°C | N | @ 17 km/h | −34°C | (1870 W/m2) | 68.97 kPa | (3127 m) | 4800 m | Broken Cloud @ 450 m Overcast @ 925 m | |||
| 11:50 UTC | −25°C | NNE | @ 20 km/h | −36°C | (1990 W/m2) | 68.89 kPa | (3136 m) | Unrestricted | Ice crystals | Few Clouds @ 1525 m Broken Cloud @ 3050 m | ||
| 05:50 UTC | −24°C | NNE | @ 20 km/h | −35°C | (1950 W/m2) | 68.81 kPa | (3145 m) | 8000 m | Mist | Overcast @ 250 m | ||
| 2011-01-07 | 23:50 UTC | 3 | −25°C | NE | @ 17 km/h | −35°C | (1900 W/m2) | 68.76 kPa | (3150 m) | Unrestricted | Ice crystals | Few Clouds @ 750 m Broken Cloud @ 4275 m |
| 2011-01-02 | 05:50 UTC | 3 | −27°C | E | @ 6 km/h | −32°C | (1530 W/m2) | 68.51 kPa | (3180 m) | Unrestricted | Fair | Few Clouds @ 1825 m |
†: All directions are given in Grid co-ordinates. Grid North is along the prime meridian.