Heavy Snow — Southern Inner Channels, Alaska

2021-12-17 to 2021-12-18 · Southern Inner Channels, Alaska

Event narrative

Public reported 10 inches of new snow at Herring Cove near Ketchikan.

Wider weather episode

A band of snow persisted over southern Baranof Island as a low tracked SE over the easern Gulf of Alaska. Easterly upslope flow combinded with cold northerly surface winds in Port Alexander resulted in heavy snowfall rates and high ratios. The snow band eventually extended SE across northern Prince of Wales Island to Ketchikan. Fluffy/dry snow accumulated quickly with reports of 1 to 2 inches per hour.

Source: NOAA Storm Events Database, event_id 1000284. Narrative written by the NWS forecast office that issued the report.