BOZEMAN – A slight change to the overall weather pattern over Montana. The deep trough that was parked over the region this week has broken down but a new trough is developing over western Canada down into the Pacific NW and the northern Rockies.
Most of the good moisture associated with this trough is wrapped up around a Low-pressure system over British Columbia, Canada.
The flow aloft is turning more toward the West and SW Wednesday and that will begin a warming trend for us but it will also help thunderstorms to develop Wednesday afternoon.
The Storm Prediction Center has a “marginal” or low-risk area up for SW Montana along and east of I-15 through the early evening hours tonight.
Some storms could be on the stronger producing brief heavy rain, small hail, strong outflow wind gusts, and plenty of lightning. You can track the thunderstorms on the STORMTracker weather Mobile app.