Significant Winter Storm to Affect the Area...

Winter Weather Expected Thursday Acorss the Northern Plains

A significant winter storm is expected to affect the area on Thursday. Precipitation will develop around midnight in central South Dakota and rapidly spread east into the James River Valley.  This area of precipitation will move into the Interstate 29 corridor between 3 and 6 am and into southwest Minnesota and northwest Iowa by early Thursday morning. North of Interstate 90, precipitation may briefly begin as freezing rain before quickly changing over to snow.  Along and south of Interstate 90, freezing rain is expected to persist for a few hours resulting in some ice accumulation.  The heaviest ice accumulation is expected across northwest Iowa where 0.10 to 0.20 inches of ices is expected. By early afternoon, precipitation is expected to have changed over to snow with the exception of northwest Iowa where light freezing rain may continue.  Snow maybe heavy at times in the morning and early afternoon north of Interstate 90. Total snow accumulation will range from up to three inches south of Interstate 90, to four to ten inches along and north of Interstate 90.  The heaviest snowfall will be along and north of Highway 14.


In addition to the snow, northerly winds will increase to 20 to 35 mph Thursday afternoon.  Blowing snow and bitterly cold wind chills are expected to develop as the day progresses adding to the hazardous winter weather conditions.

Snowfall Amounts Expected

snowfall expected Thursday Feb 25, 2009

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