325 FXUS63 KGRR 110635 AFDGRR Area Forecast Discussion National Weather Service Grand Rapids MI 135 AM EST Wed Nov 11 2026 .KEY MESSAGES... - Rain showers today, then cooler with Lake Effect rain/snow && .DISCUSSION... Issued at 135 AM EST Wed Nov 11 2026 - Rain showers today, then cooler with Lake Effect rain/snow Rain showers advancing eastward from Minnesota into Wisconsin this morning are associated with a clipper low/digging northern stream shortwave trough. Expect the rain to move into northwest forecast area this morning then spread to the southeast in the afternoon. The trough merges with a retrograding upper low over eastern Canada., leading to an amplified pattern across the CONUS through the weekend, with strong northerly flow bringing lake effect rain and snow showers and cool temperatures for Thursday through Saturday. The immediate lakeshore should remain rain due to modification by the relatively warm lake surface temperatures. Inland will see some snow and perhaps light accumulations on unpaved surfaces. Travel impacts are not expected since the heavier lake effect bands are expected to remain offshore. && .AVIATION /06Z TAFS THROUGH 06Z THURSDAY/... Issued at 135 AM EST Wed Nov 11 2026 Patchy IFR and even brief LIFR conditions are possible overnight as shallow ground fog forms. The fog should mix out after sunrise as winds increase. Then VFR conditions are expected until late afternoon when rain moves in from the west with MVFR conditions possible late afternoon and evening. && .GRR WATCHES/WARNINGS/ADVISORIES... MI...None. MARINE...Small Craft Advisory from 7 PM this evening to 7 PM EST Friday for LMZ844>849. && $$ DISCUSSION...Ostuno AVIATION...Ostuno

NWS GRR Office Area Forecast Discussion