008 FXUS63 KGRR 201725 AFDGRR Area Forecast Discussion National Weather Service Grand Rapids MI 125 PM EDT Tue Oct 20 2026 .KEY MESSAGES... - Quiet Weather This Week && .DISCUSSION... Issued at 132 AM EDT Tue Oct 20 2026 - Quiet Weather This Week The dry weather pattern continues this week under upper and surface ridging. The next chance for rain is not until late in the weekend. A slowly progressive pattern sees the ridge being flattened by northern stream troughing Sunday into Monday with a cold front bringing showers while slowly pushing south through the Great Lakes. && .AVIATION /18Z TAFS THROUGH 18Z WEDNESDAY/... Issued at 124 PM EDT Tue Oct 20 2026 Clear skies will continue through the period. Fog is possible along the I-94 terminals after 09z, but will burn off shortly after sunrise. && .MARINE... Issued at 132 AM EDT Tue Oct 20 2026 Winds and waves will remain relatively light this week. There could be areas of shallow fog at times this morning, especially in coastal areas. && .GRR WATCHES/WARNINGS/ADVISORIES... MI...None. MARINE...None. && $$ DISCUSSION...04 AVIATION...Ostuno MARINE...Ostuno

NWS GRR Office Area Forecast Discussion