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Tropical Moisture Brings Slight Risk of Excessive Rainfall to the Southwest; Strong to Locally Severe Storms on the Plains

Heavy rain and flash flooding are possible across portions of the Southwest through Friday, where Flood Watches are in effect. Strong to locally severe thunderstorms are possible today across portions of the Plains. A tropical wave is causing heavy rainfall in Puerto Rico and the Virgin Islands, which may cause urban and small stream flooding and landslides today. Read More >

***All information is considered preliminary until investigations are finalized***

Overview

During the afternoon and evening hours of May 12, 2022, a strong line of thunderstorms developed across southern Nebraska and quickly raced northeast into eastern South Dakota and western Minnesota. As these storms moved north, they produced extreme winds across portions of the Northern Plains. Widespread straight-line winds between 50 and 70 mph were reported, with embedded areas of 80 to 100 mph winds. The highest wind gust reported included a measured 94 mph gust in Madison, MN.

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SPC Day 1 Categorical Outlook Local Storm Reports Severe Weather Warnings
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