The Northern Plains will remain active with chances for strong and severe thunderstorms to start this week. This weekend, severe storms brought large hail, strong winds, and even a few tornadoes, thanks to a nearly stationary low pressure system in Western Canada.

Large hail came down with storms in the Black Hills of South Dakota on Thursday, check out the size of the stones in one town and some of the other biggest reports in the Midwest! #sdwx pic.twitter.com/fDHdnPwyx0

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Monday

Additional energy from the persistent Canadian low pressure system will move through the Colorado Rockies up into the Upper Midwest with another chance for scattered severe storms. Strong winds and large hail will continue to be the primary hazards, but isolated tornadoes may also occur.

Several waves of storms will cross the Upper Midwest and High Plains. One line of severe storms is likely to form this afternoon (Monday) along a cold front in the late afternoon in the western Great Lakes. More severe storms will develop in the High Plains in the evening, moving across the Dakotas overnight.

Tuesday

On Tuesday, energy from the trough will stretch out across the Northern Plains into the Upper Midwest. Severe storms will be possible from Montana through western Wisconsin.

Wednesday

The severe weather threat continues on Wednesday, shifting to the east ahead of another cold front. Severe storms will be possible from Minnesota to Nebraska.

Stay with WeatherNation for the latest on the severe weather this week. This article will continue to be updated as additional data becomes available.