Flood in Upper Koyukuk Valley, Alaska

Flood August 19, 2024 – August 22, 2024 · Upper Koyukuk Valley, Alaska

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

What the National Weather Service wrote

Heavy rainfall over the northern Interior caused rapid rises on the Alatna and Kuyokuk Rivers. The water came up 4 to 6 feet in three days on the Alatna River and the Koyukuk was very high with debris and flooding. In Allakaket, water flooding the boat launch, as well as fish camps along the river.

The wider storm

A series of storms dropped copious amounts of rainfall across northern Alaska from August 15th through the 23rd. This rainfall caused rapid rises on streams and rivers which resulted in localized flooding of low-lying areas along northern Interior rivers.

Began near Allakaket (66.5812, -152.6035).

Source: NOAA Storm Events Database, event 1210831. Narratives are written by the National Weather Service forecast office that issued the report.

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