211 FXUS63 KGRR 111128 AFDGRR Area Forecast Discussion National Weather Service Grand Rapids MI 628 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 /12Z TAFS THROUGH 12Z THURSDAY/... Issued at 628 AM EST Wed Nov 11 2026 Shallow ground fog and/or low stratus could bring brief IFR or LIFR conditions early this morning before dissipating. The VFR conditions should prevail into this afternoon before rain moves in the west. Areas of MVFR can be expected by late afternoon and evening. Winds will be from the southwest less than 10 knots to start the day then go north to northeast by this evening AOB 10 knots. && .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