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U.S. Weather Update 5.21.26

| May 21, 2026 | By

 A multiple day heavy rainfall event will begin to set up from the Southern Plains into the Mississippi Valley Thursday, peaking in intensity over the holiday weekend. Widely scattered thunderstorms are expected to develop across eastern Colorado Thursday afternoon and evening. Large hail will be the primary hazard. 

Montana

Winter Storm Warning remains in effect until 6 pm today.

  • Total snow accumulations between 8 and 15 inches. 

  • North winds gusting as high as 30 mph. 

 

Additional Flood Warning included but not limited to : Washington, Minnesota, Texas, Missouri, Louisiana, Mississippi, Illinois, and Indiana.

Additional Dense Fog included but not limited to :  Alabama, Florida, Georgia, South Carolina, and North Carolina. 

Additional High Wind Warning included but not limited to : Idaho, Utah, and Colorado.

Additional Winter Weather Advisory included but not limited to : Montana and Wyoming.

 

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