Blizzard — Nern P.w. Snd, Alaska

2018-11-11 · Nern P.w. Snd, Alaska

Event narrative

Alaska DOT reported blizzard conditions through Thompson Pass, with blowing snow reducing visibility to less than 1/4 mile.

Wider weather episode

An area of high pressure formed over the Central Interior, causing cold air to build up over the Copper River Basin. Meanwhile, a weak trough from a lingering low just south of Yakutat caused the pressure gradient to increase through the Chugach Mountains. This caused blizzard conditions along Thompson Pass.

Source: NOAA Storm Events Database, event_id 794519. Narrative written by the NWS forecast office that issued the report.