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Precipitation in the Pacific Northwest into the Northern Rockies; Bering Sea Storm in Alaska

A Pacific storm will bring rain and high elevation snow from the Pacific Northwest into the Northern Rockies. A series of storms are expected to move through the Bering Sea bringing strong winds, heavy precipitation, and elevated water levels from the West Coast to northern Alaska. 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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