575 FXUS63 KGRR 211054 AFDGRR Area Forecast Discussion National Weather Service Grand Rapids MI 654 AM EDT Wed Oct 21 2026 .KEY MESSAGES... - Quiet Weather through the Weekend - Height falls with showers then cooler next week && .DISCUSSION... Issued at 202 AM EDT Wed Oct 21 2026 - Quiet Weather through the Weekend The dry weather pattern continues this week under upper and surface ridging. The next chance for rain is not until early next week. A slowly progressive pattern sees the ridge being flattened by northern stream troughing early next week with a cold front bringing showers while slowly pushing south through the Great Lakes. - Height falls with showers then cooler next week There are some indications the front could stall near Lower Michigan with a surface low moving along it for Tuesday or Wednesday. Upper troughing follows with the potential for sharply colder temperatures for the rest of next week. && .AVIATION /12Z TAFS THROUGH 12Z THURSDAY/... Issued at 653 AM EDT Wed Oct 21 2026 Areas of fog and low stratus will bring IFR/LIFR early this morning then the fog should dissipate after sunrise with VFR conditions through this evening. Some fog could form again late tonight. && .MARINE... Issued at 202 AM EDT Wed Oct 21 2026 Winds and waves will remain relatively calm through the week then increase during the weekend. && .GRR WATCHES/WARNINGS/ADVISORIES... MI...None. MARINE...None. && $$ DISCUSSION...Ostuno AVIATION...Ostuno MARINE...Ostuno

NWS GRR Office Area Forecast Discussion