727 FXUS63 KGRR 300839 AFDGRR Area Forecast Discussion National Weather Service Grand Rapids MI 339 AM EST Tue Dec 30 2025 .KEY MESSAGES... - Periods of Light Snow This Week && .DISCUSSION... Issued at 338 AM EST Tue Dec 30 2025 - Periods of Light Snow This Week Typical winter weather into the weekend with no big storms but a few clippers in fast northwest flow that will bring light snow. THe first one comes in this afternoon with some lake enhancement to the light synoptic snows and a general 1 to 2 inches by the time the snow tapers off after midnight. Snow will flare up again as the next shortwave trough follows quickly for Wednesday. Expect another 1 to 2 inches by Thursday morning before the trough axis moves east and heights rise. Light lake effect snow showers are possible on Friday as weak shortwave troughing occurs, but additional accumulations are not expected. && .AVIATION /06Z TAFS THROUGH 06Z WEDNESDAY/... Issued at 1134 PM EST Mon Dec 29 2025 Lake effect snow continues to impact west michigan though visibility reductions have lessened over the past few hours. This trend is expected to continue for at least the first half of the TAF period. Exception to this is KMKG where persistent snow will bring IFR conditions through much, if not all of the taf period. Expectation is still for a more widespread light snow and reduction in visibility once again Tuesday afternoon and evening. && .GRR WATCHES/WARNINGS/ADVISORIES... MI...None. MARINE...Small Craft Advisory until 7 PM EST Wednesday for LMZ844>849. && $$ DISCUSSION...Ostuno AVIATION...Maczko

NWS GRR Office Area Forecast Discussion