Area Forecast Discussion
Issued by NWS Grand Rapids, MI
Issued by NWS Grand Rapids, MI
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285 FXUS63 KGRR 111115 AFDGRR Area Forecast Discussion National Weather Service Grand Rapids MI 715 AM EDT Thu Sep 11 2025 .KEY MESSAGES... - Chance of Rain Saturday && .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. && .AVIATION /12Z TAFS THROUGH 12Z FRIDAY/... Issued at 715 AM EDT Thu Sep 11 2025 VFR conditions will continue with light and variable winds through tonight. && .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. && .GRR WATCHES/WARNINGS/ADVISORIES... MI...None. MARINE...None. && $$ DISCUSSION...Ostuno AVIATION...Ostuno MARINE...Ostuno