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Flood in Susitna Valley, Alaska

Flood June 24, 2019 – June 30, 2019 · Susitna Valley, Alaska

$3.0M
Damage as recorded

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

What the National Weather Service wrote

Above normal temperatures combined with above normal high elevation snowpack caused this flooding event. The Yentna River at Lake Creek (YLKA2) crested at 21.82 feet on 7/1/2019. Moderate flood stage is 22 ft, minor flood stage is 20.5 ft. Many lodges were surrounded by water and one reported 6-7 inches of water in one of their guest cabins.

The wider storm

Warm weather in the western Susitna caused snow and glacial melt in the upper reaches of the basin. A prolonged period of warm weather in late June and early July caused melting of high altitude snow and glaciers in the Alaska Range. At Talkeetna, the nearest weather station, daily highs in this time period were all above normal, with records being broken or tied on 6/23, 6/28, 7/5, 7/6, 7/7 and 7/8. With regards to winter snowpack, the NRCS April 2019 Snowpack Report states that upper elevation snow in the Alaska Range appears to be above normal.

Began near Skwentna (61.9438, -151.0110).

Source: NOAA Storm Events Database, event 834237. Narratives are written by the National Weather Service forecast office that issued the report.

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