Powerful Storms Rumble Over the Northern High Plains

Severe thunderstorms will develop over portions of the northern High Plains this evening.

A potent upper-level weather disturbance has helped spawn a cluster of thunderstorms that will advance east-southeastward from southeast Montana into northeast Wyoming and western South Dakota this evening. These storms will move over the western South Dakota and northwestern Nebraska before dissipating overnight. 

Given plenty of warm, unstable air in place across the region, the government's Storm Prediction Center has placed Enhanced and Slight Risks across far southeastern Montana, northeast Wyoming, and western South Dakota, and northwestern Nebraska. 

A Severe Thunderstorm Watch is in effect for portions of southeastern Montana and northeast Wyoming.

A Severe Thunderstorm Watch is in effect for portions of western South Dakota, including Rapid City.

Damaging wind gusts in excess of 60 mph and large hail will be the primary threat from thunderstorms today. However, an isolated tornado or two cannot be ruled out. Cities such as Sheridan, Wyo., and Rapid City, S.D. are all under this risk today. 

A few stronger thunderstorms may also develop across the central Plains to the Upper Midwest along and ahead of an advancing cold front. Cities such as Denver, Kansas City, Mo., Des Moines, Iowa, and Milwaukee could experience thunderstorms capable of producing wind gusts in excess of 50 mph, small hail, and heavy downpours. 

Make sure to know the difference between a watch and a warning should they become issued. A “watch” means that conditions are favorable for severe weather to occur and to be on alert for any rapidly changing conditions. A “warning” means that severe weather is imminent, and you should act fast to remain safe.

The best way to remain safe is to stay prepared and informed about your local weather. Have a severe weather kit packed with a battery-operated radio, water, and non-perishable food items should you be without power for long periods of time. Also, check the WeatherBug app frequently for any updates on today's severe weather. Remember, "When Thunder Roars, Go Indoors!"