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Heavy Rain and Flash Flooding Concerns in California; Heavy Snow in the Sierra

An atmospheric river will bring heavy rainfall to lower elevations of California this week, and heavy snow to the Sierra Nevada mountains. Flash flooding, some of which may be locally considerable, will be a concern on the western foothills of the Sierra Nevada mountains through Tuesday. Landslides, rockfalls and mudslides are possible in the Southern California mountains. Read More >

Overview

Scattered showers and thunderstorms tracked east along and ahead of a cold front that pushed through eastern IA, northwest IL, and northeast MO during the late afternoon and evening.  Some of the storms produced large hail, gusty winds, and heavy rain and the strongest storms brought large hail to portions of Buchanan county and damaging winds in Muscatine county.

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WPC Surface Analysis 21z 06/15/22
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