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Bering Sea Storms in Alaska; Heavy Rain in Hawaii; Severe Thunderstorms in the Upper Mississippi Valley

A series of Bering Sea storms continues to impact western Alaska this week, with elevated water levels, isolated coastal flooding, high surf, erosion, and strong winds. Tropical moisture will bring the potential for heavy rain and thunderstorms to Hawaii through early Thursday. A few severe thunderstorms are possible over the Upper Mississippi Valley today with some tornado potential. Read More >

Overview

A powerful upper level storm system slowly moved across the plains, leading to several rounds of severe thunderstorms and very heavy rain across the Tri-State area (Figure 1 and 2). This systems slow movement allowed for multiple rounds of thunderstorms leading to numerous locations receiving several inches of rain, resulting in widespread flooding (Figure 3).  Numerous severe thunderstorms occurred each day, with very large hail and damaging winds prevailing on May 10th and numerous tornadoes on May 11th (Figure 4 and 5).

 

6 AM MDT May 10 2022 500mb Heights/Winds   6 AM MDT May 11 2022 500mb Heights/Winds
Radar estimates. refer to local observations for exact amounts.
Estimated Rainfall from Radar May 10th Storm Reports
May 11th Storm Reports

 

Downloadable KMZ File for all tornado and wind data for this event here!

 

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