Marine High Wind — Frederick Sound, Gulf of Alaska

2023-04-09 · near Cape Fanshaw, Frederick Sound, Gulf of Alaska

Event narrative

The burst of high winds tracked northward from the Petersburg area and across Frederick Sound. The FAA webcam at Cape Fanshaw measured a max sustained wind of 42 mph at 230pm AKDT (site does not measure gusts).

Wider weather episode

A shortwave moving around a broader low in the Gulf of Alaska saw an embedded band of convective activity develop with strong cold air advection behind it, which resulted in an area of enhanced winds which tracked northward across the Inside Passage.

View location on OpenStreetMap → (56.8145, -132.9689)

Source: NOAA Storm Events Database, event_id 1101970. Narrative written by the NWS forecast office that issued the report.