We were treated to a couple of very pleasant days here in Mid-Michigan thanks to an early-Autumn high pressure system, but it has now moved east of us, paving the way for a new storm system just in time for the weekend.
Occasional light showers will continue on and off throughout the night, eventually giving way to a wave of heavier rain with possible thunderstorms by morning. Lows will run a bit milder than the last two nights, settling into the mid 60s.
Mother Nature herself appears to be a fan of the Crim, as it looks like she's fixing to run it Saturday morning in the form of wet weather. A large swath of heavier rain will roll in off of Lake Michigan during the early-morning hours of Saturday, looking to make an arrival in Mid-Michigan around or shortly after 6:00 AM. This timing my vary, but there does look to be a high likelihood of the rain arriving in Flint just before or during some of the races. Rain may bothersome, but on its own, it likely won't bring anything to a halt. The problem is that there may be some embedded thunderstorms, which could pose a safety risk to runners. You can keep track of the rain up to the minute with the First Warn 5 Interactive Radar.
The widespread steadier rain will pull east of the region by late-morning, but daytime heating will likely stir up a new wave of scattered thunderstorms during the afternoon. Some stronger storms will be possible, and an isolated few could even become severe from Flint through the Thumb. Be prepared for the possibility of torrential downpours and gusty winds. Highs Saturday in the middle and upper 70s.
Lingering showers and storms Saturday evening will come to an end by midnight, leaving us with mostly cloudy skies into Sunday morning. Lows remaining mild in the middle and upper 60s.
Air conditioning will go back into service on Sunday as a blast of heat and humidity surge back into the region. Skies will run partly to mostly sunny throughout the day, with highs climbing back into the upper 80s. A few thunderstorms will be possible by evening, but most of the day will stay dry.
Look ahead to next week in the First Warn 5 7-Day Forecast!
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