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Heavy Snow and Gusty Winds in the North-Central US; Freezing Rain Possible in the Northern Plains and Appalachians

Areas of moderate to heavy snow and gusty to high winds are expected across the Northern Plains, Upper Midwest and Great Lakes. Patchy areas of light rain/freezing rain may develop along the rain-snow line over parts of the Northern Plains into the morning. A mix of light snow and freezing rain or drizzle is possible in the central Appalachians that may impact the morning commute. Read More >

Overview

February 8-9, 2018 - A slow-moving winter storm brought heavy snow to parts of northeast Wyoming and western South Dakota. Snow began early February 8 dropping several inches of snow across northwest South Dakota. Warmer air moved in above the ground. Some of the precipitation turned to sleet and freezing rain over the Black Hills and adjacent plains during the afternoon and early evening February 8.

A secondary wave of energy moved through at night which pushed bitterly cold arctic air into the region. It also changed changed precipitation to all snow. The heaviest snow fell the night of February 8 into the morning of February 9. The heaviest snow fell from Gillette, WY to Hot Springs, SD to Porcupine, SD.

Clearing skies over the fresh snow cover created bitterly cold low temperatures by the morning of February 10.

Newcastle, WY Courtesy Aaron N. Hot Springs, SD Courtesy Jessica M. Southern Harding County, SD Courtesy Meria S.
Newcastle, WY Courtesy Aaron N. Hot Springs, SD Courtesy Jessica M. Southern Harding County, SD Courtesy Meria S.

 

February 10, 2018 Low Temperatures

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