| Wind: | < 88 km/h |
|---|---|
| W'Chill: | > −60°C |
| Vis: | > 400 m |
This is good weather. No travel restrictions apply.
| Wind: | 88–100 km/h |
|---|---|
| W'Chill: | −73– −60°C |
| Vis: | 30–400 m |
High winds, low windchill or low visibility occurring or imminent. Travellers must check in with Comms prior to departure and again upon return. Recreational travel is prohibited.
| Wind: | > 100 km/h |
|---|---|
| W'Chill: | < −73°C |
| Vis: | < 30 m |
Very high winds, very low windchill or very low visibility occurring or imminent. Travelling is prohibited, except for "mission critical" travel, with approval of Station brass.