A few severe thunderstorms could develop later Sunday afternoon into Sunday night. Damaging winds, large hail and an isolated tornado are possible. Locally heavy rain and frequent lightning are expected with the storms. The main storm motion will be northeast at 35 mph.
A warm front will lift northward through Lower Michigan tonight producing showers and thunderstorms with locally heavy rainfall. Then the atmosphere during the day on Sunday will become unstable. As this instability builds, new thunderstorms are forecasted to develop late Sunday afternoon or evening. An increased risk exists for some of these storms to turn severe. The storms could persist into the night. A very moist airmass will be in place, so the storms will be capable of rainfall rates over an inch per hour.
In addition, on Monday, another round of severe thunderstorms could occur roughly east of a Battle Creek to Lansing line as a cold front pushes through.
Continue to monitor the weather closely through Monday.
Below is the outlook for severe weather Sunday into Sunday night.
Below is the outlook for severe weather on Monday