Winter Storm — Annette Island, Alaska

2023-03-01 · Annette Island, Alaska

Event narrative

Snow began late on February 28th and became heavy through the following morning with periodic gusts of around 35 to 45mph. An NWS Employee measured 4.3 inches of snow and a power outage at 7am. The COOP in Metlakatla measured 2.1 inches of snow at 1148am, but noted that there was a large amount of snow overnight that had transitioned into rain with high winds. The COOP also noted the power outage.

Wider weather episode

A strong low pressure developed over the northern Gulf of Alaska bringing significant moisture to Southeast Alaska. Cold air entrenched over the region at low levels ahead of the event allowed for significant snow to fall across the area in two major pulses. The first being along the warm front, with a period of blizzard conditions over Juneau, and the second pulse occurred as the cold front moved across the region.

Source: NOAA Storm Events Database, event_id 1082524. Narrative written by the NWS forecast office that issued the report.