BOZEMAN – The atmosphere is slightly unstable Wednesday afternoon and a few isolated thunderstorms are developing south of Bozeman and near Butte.
These storms will be short-lived and should diminish rapidly after sunset tonight. Some storms could be wet and others dry.
Thursday thunderstorms should be more widespread. A cold front will pass through state late Thursday afternoon into Friday morning. Ahead of the front a stronger SW surface flow and better lift producing stronger thunderstorms.
The Storm Prediction Center has a “marginal” or low risk for strong to severe thunderstorms Thursday afternoon across SW Montana.
Most storms could produce large hail, and strong wind gusts. Frequent lightning and brief heavy rain are also possible with some of the storms Thursday.
Behind the cold temperatures will be slightly cooler beginning Friday.
Surface winds will be strong at times Friday as High-pressure rebuilds into the region. This could produce an increase in fire danger so please be very careful with outdoor activities Friday.