High Wind — Western Aleutians, Alaska

2017-10-23 · Western Aleutians, Alaska

Event narrative

Shemya (PASY) observed hurricane force wind gusts for nearly 3 hours before winds began to diminish. Winds stayed above 70 mph for another 2 hours following them diminishing below warning criteria.

Wider weather episode

An extratropical low developed off the tip of Kamchatka ahead of decaying Typhoon Lan. The extratropical low tapped into the energy associated with the typhoon and quickly strengthened from the upper 970 mb range to the mid 930's. This helped bring hurricane force winds to the Western and Central Aleutians.

Source: NOAA Storm Events Database, event_id 723428. Narrative written by the NWS forecast office that issued the report.