Hail — Upper Tanana Valley, Alaska

2025-07-07 · near Dot Lake, Upper Tanana Valley, Alaska

Event narrative

Local social media reports indicated 1 inch diameter hail falling near Dot Lake and George Lake. Additional social media reports showed numerous hailstones collected along the Alaska Highway, but likely just under 1 inch in diameter.

Wider weather episode

An arctic trough dropped into northern Alaska and began to interact with a low-pressure system over the northern Gulf of Alaska. This allowed for a strong disturbance to advance northwest up the upper Tanana Valley right along the Alaska Highway. As daytime heating destabilized the atmosphere, strong to severe thunderstorms developed.

View location on OpenStreetMap → (63.6609, -144.0679)

Source: NOAA Storm Events Database, event_id 1288540. Narrative written by the NWS forecast office that issued the report.