A potent winter storm system is forecast to bring heavy snowfall to the Black Hills and surrounding areas starting early Tuesday, with impacts expected to last through Wednesday morning. The National Weather Service has issued a Winter Storm Watch for northeast Wyoming and western South Dakota, warning of snow accumulations between 6 and 8 inches in higher elevations. Local residents should prepare for potentially hazardous road conditions, particularly along Interstate 90, with visibility likely reduced due to snow and high winds.
According to the National Weather Service in Rapid City, snowfall will begin as rain but is expected to switch to snow as temperatures drop. Accumulations of 1 to 4 inches are forecast across northeastern Wyoming plains, with some areas experiencing locally higher amounts. Temperatures in the Black Hills could fall low enough for significant snow to gather, especially near the Bear Lodge Mountains.
This storm is likely to impact travel heavily, with road conditions deteriorating rapidly in affected areas. Residents and travelers are advised to monitor local weather reports and avoid non-essential travel during the storm’s peak. Winds from the northwest are anticipated at speeds of 10 to 20 mph, potentially creating blowing snow conditions in open areas.
Forecasts predict widespread precipitation across Wyoming and South Dakota, with rain expected to persist in the plains of western South Dakota where temperatures are expected to stay slightly warmer. However, even a small drop in temperature could bring minor snowfall to the Rapid City area. Motorists should carry emergency kits and prepare for delays as the storm progresses.
Looking ahead, cold temperatures are expected to linger into the week, with chances of continued snowfall in higher elevations, and lighter rain or snow showers across western South Dakota plains. Travelers should remain alert to changing weather conditions and heed all advisories.
