057 FXUS63 KGRR 110557 AFDGRRArea Forecast Discussion National Weather Service Grand Rapids MI 157 AM EDT Thu Sep 11 2025
.KEY MESSAGES...
- Chance of Rain Saturday
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.DISCUSSION... Issued at 156 AM EDT Thu Sep 11 2025
- Chance of Rain Saturday
Overall dry pattern continues into next week with only a chance of showers Saturday morning. Convection forms on the nose of a LLJ across Wisconsin late Friday night and translates east-southeast across Lower Michigan Saturday morning. POPS amd QPF will be limited however as the LLJ is weakening. Instability and shear profiles also suggest thunder chances are isolated at best.
The majority of the next several days will see sfc high pressure edging down from Canada with dry north or northeast flow. Gulf moisture remains effectively cut off into next week.
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.AVIATION /06Z TAFS THROUGH 06Z FRIDAY/... Issued at 156 AM EDT Thu Sep 11 2025
VFR conditions will prevail through Thursday night except for some shallow ground fog overnight at JXN. Winds will be light and variable except for a west to northwest lake breeze developing near MKG during the afternoon.
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.MARINE... Issued at 156 AM EDT Thu Sep 11 2025
Winds and waves will be light into this weekend. Lake breezes in the afternoon will see west winds AOB 10 knots, otherwise light offshore flow can be expected.
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.GRR WATCHES/WARNINGS/ADVISORIES... MI...None. MARINE...None.
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DISCUSSION...Ostuno AVIATION...Ostuno MARINE...Ostuno
NWS GRR Office Area Forecast Discussion