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Locally Heavy Rainfall for the Carolinas; Thunderstorms and Fire Weather Concerns for Intermountain West

Heavy rainfall from scattered thunderstorms is expected across the Southwest, Intermountain West, and Plains. Isolated dry thunderstorms may initiate additional fires across the west. The coastal Carolinas may experience flash floods in the coming days due to repeated thunderstorms. Additionally, a wave of intense summer heat will hit the Southern Plains and central Gulf Coast States this week. 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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