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Flash Flood in Ne. Slopes of the Ern Ak Rng, Alaska

Flash Flood July 10, 2022 – July 12, 2022 · Ne. Slopes of the Ern Ak Rng, Alaska

$14.0M
Damage as recorded

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

What the National Weather Service wrote

Over 3 inches of rain caused significant rises in creeks draining the Alaska Range from the evening of July 10th. This caused minor damage to several bridges, specifically the ones over Boulder Creek, Lower Suzy Q Creek, Upper Suzy Q Creek, Falls Creek, Gunnysack Creek, and Darling Creek. The Bridge over Bear Creek received significant damage, the approach road being washed out completely. The Richardson highway was closed between MP 281 and MP 234 for over 48 hours. Flooding also damaged a fiber optic cable which resulted in communications disruptions across the Interior.

The wider storm

Upslope flow combined with a very moist airmass caused training thunderstorms to form along the Alaska Range. The rainfall associated with these thunderstorms caused significant rises to small creeks draining the Alaska Range.

Began near Mentasta Lake (63.5835, -145.8753).

Source: NOAA Storm Events Database, event 1050455. Narratives are written by the National Weather Service forecast office that issued the report.

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