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Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Overview

A major winter storm system struck the Northern Plains beginning during the late afternoon of Monday, December 5th and continuing through midweek. Heavy snow moved into portions of northeastern North Dakota and northwestern Minnesota during the late afternoon and early evening and continued through Monday night. The snow decreased in intensity during the day on Tuesday but winds increased significantly. This created blizzard conditions for much of the area Tuesday and into Tuesday night. Even with southeastern North Dakota and west central Minnesota receiving less snow than locations further north, the winds brought white-out conditions and travel difficulties to large portions of the region.  Winds decreased for a while Wednesday morning but conditions deteriorated again by the afternoon across the Devils Lake Basin.

 

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