A quiet, cool stretch of weather will come to an abrupt end across West Michigan by Thursday, June 22.

Warm, moist and unstable air will surge north along and ahead of a warm front. That frontal boundary will provide the first round of storms early Thursday morning.

13 On Target Forecast

The cold front will provide the final round of storms by late Thursday night and early Friday morning. This round has the best chance to produce strong, damaging wind gusts and even large hail. However, the timing of the front (after sunset), may limit just how strong the storms become.

There is a potential for 2-3 rounds of thunderstorms across West Michigan on Thursday.

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The main threats from the storms will be from very heavy rainfall and frequent lightning. Humidity levels will soar on Thursday and some areas will end up with more than an inch of rain.

Behind the cold front, temperatures will fall and the thunderstorm threat will end by Friday morning.

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