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Arctic Air Plunges into the Great Lakes, Northeast and Mid-Atlantic

Arctic air dropping through the northern and eastern U.S. and a storm off the east coast will bring periods of snow, very cold wind chills and hazardous traveling conditions from the Upper Great Lakes to the Northeast. Meanwhile in southern California, Santa Ana winds will decrease but hot, dry air will remain over the area with elevated fire weather conditions. Read More >

Overview

The first strong winter storm of 2017 moved across the Plains on January 24 and 25, bringing widespread heavy snow of 6 to 16" inches across the region. The snow quickly develop early Tuesday morning, as a heavy snow band lifted into the Missouri River Valley region.  Snow amounts of 1 to 3" per hour were reported near Sioux City, IA. 

Snow continued to slowly lift northward into the evening, with an intense snow band rotating northwest into the Tri-State area.  The heaviest snow was reported near Yankton, Lake Andes, Gregory, SD where over a foot of snow had fallen by Wednesday morning. However, the axis of a foot of snow extended eastward into Northwest Iowa, with 13" of snow in Beresford, SD and nearly 10" in Spencer IA. The highest snowfall report in the Sioux Falls forecast area was 18" in Pickstown, SD. The highest regional total was 20" reported in Spencer, NE. 

Winds of 20 to 30 mph created significant blowing and drifting of the snow, and even shut down portions of Interstate 90 west of Chamberlain, SD during the overnight hours. 

This storm broke daily records for snowfall and precipitation in both Sioux Falls and Sioux City, IA. 

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Regional Radar Loop
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January 24 Snow Records Local Storm Reports in the Sioux Falls CWA Falls Park in Sioux Falls
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