High Wind — Eastern Aleutians, Alaska

2021-12-07 to 2021-12-09 · Eastern Aleutians, Alaska

Event narrative

Nikolski recorded a peak wind at 52G105 mph on 12/9 at 2:02AM. The UNLA2 site in Unalaks recorded 79MPH 12/9 at 412AM. The Dutch Harbor APL crane recorded a 1s gust of 96 mph on 12/9/2021 at 2:07AM. The Dutch Harbor Pilot Station recorded 1s gust of 80 mph on 12/9/2021 at 2:12AM. Nikolski first reached warning criteria 12/8 at 5:42PM at 52G75mph.

Wider weather episode

A north to south oriented frontal boundary brought periods of heavy snow, avalanche conditions, lowered visibilities, high winds and strong surf from west to east over the course of several days as the front shifted slowly east and developed into a triple point low over the western Gulf. Strong upper level dynamics and a deep moisture fetch made this an impactful storm for southern Alaska.

Source: NOAA Storm Events Database, event_id 1007230. Narrative written by the NWS forecast office that issued the report.