Rare Southern U.S. Winter Storm; Dangerous Cold Weather For Much of the Eastern U.S.; Critical Fire Weather for Southern California

A rare winter storm impacting the Southern U.S. will move offshore Wednesday morning. Behind the storm, arctic air will continue encompassing the eastern two-thirds of the Nation with only a slow return to normal temperatures expected by the end of the week. Moderate to strong Santa Ana winds and low humidity will maintain Critical fire weather conditions in southern California into Thursday. Read More >

A narrow, but intense snowband developed over eastern South Dakota and western Minnesota from mid-morning through early evening on 18 March 2014. The graphic below shows the extent of the snow band around 1pm CDT. At this time, the most intense portion of the band was only about 20-30 miles wide, but was producing snowfall rates of 1 to 2 inches per hour! As a result, a very tight snowfall gradient was observed across the area. For example, Watertown, SD only picked 0.1" of snow while Clear Lake, SD picked up a whopping 10.5"! A graphical snowfall map and a few tabular snowfall listings are also provided below.

Clear Lake, SD - 10.5"
5 SE Revillo, SD - 7.0"
Estelline, SD - 6.0"
Correll, MN - 6.0"
Wheaton, MN - 2.8"
Artichoke Lake, MN - 2.0"
Milbank, SD - 0.5"
Watertown, SD - 0.1"

Image 1: KABR Reflecitivity at 1pm CDT:

Image 2: Storm Total Snowfall Graphic:

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Rare Southern U.S. Winter Storm; Dangerous Cold Weather For Much of the Eastern U.S.; Critical Fire Weather for Southern California

Banded Snowfall Event on 18 March 2014