National Weather Service United States Department of Commerce

Active Weather for the West, Warming in the East

The potential for heavy snow at higher elevations in the western U.S. will continue for many spots through the weekend. In the meantime, the eastern half of the continental U.S. will transition to above normal temperatures ahead of a pair of cold fronts next week that will bring readings back to closer to normal as we approach Thanksgiving Day. 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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