Hail in Upper Tanana Valley, Alaska

Hail July 7, 2025 · Upper Tanana Valley, Alaska

1 in

Hail diameter

Where the report was made, with tornadoes recorded within 15 miles over the years.

What the National Weather Service wrote

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.

The wider storm

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.

Began near Dot Lake (63.6609, -144.0679).

Source: NOAA Storm Events Database, event 1288540. Narratives are written by the National Weather Service forecast office that issued the report.

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