Heavy Rain in Eastern Aleutians, Alaska

Heavy Rain March 19, 2024 – March 21, 2024 · Eastern Aleutians, Alaska

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

What the National Weather Service wrote

Unalaska Roads Department reported heavy rain in Unalaska washed out several gravel roadways in the surrounding area. Blocked culverts caused additional street flooding and also washed large crevasses up to 4 ft deep in some of the roadways.

The wider storm

An atmospheric river moving through the Aleutians on March 19th - March 21nd dropped heavy rain of 3-5 inches storm total over the Onalaska/Dutch Harbor area. The heavy rain came in 2 strong pulses, one on 3/19 of up to 3 which started flooding in the area, with a second pulse overnight on 3/21 which exacerbated flooding in the area.

Began near Unalaska (53.8800, -166.5300).

Source: NOAA Storm Events Database, event 1157930. Narratives are written by the National Weather Service forecast office that issued the report.

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