585 FXUS63 KGRR 012327 AFDGRR Area Forecast Discussion National Weather Service Grand Rapids MI 627 PM EST Sun Feb 1 2026 .KEY MESSAGES... - Clipper Brings Light Snow Tonight into Monday - Another Clipper Bringing Snow Thursday Night into Friday && .DISCUSSION... Issued at 213 PM EST Sun Feb 1 2026 - Clipper Brings Light Snow Tonight into Monday Light snow moves in late tonight into Monday morning with 1-2 inches along the lakeshore and an inch or less further inland. Light snow paired with temperatures in the teens to low 20s will bring slick spots for the Monday morning commute. The shortwave trough that will bring our round of light snow overnight into Monday is currently over western Wisconsin and will gradually move east reaching the lakeshore around midnight. Moisture is not that deep, nor is the best lift in the dendritic growth zone, therefore snowfall rates should remain light. Probabilities of 2 or more inches are focused in Muskegon, Oceana, and Mason Counties where the fetch off the lake is the best for some lake enhanced snow. Therefore some isolated pockets up to 3 inches is possible (30 to 50 percent). The best moisture exits the region Monday morning with the potential for some lingering light showers into the afternoon. We will have to monitor for some freezing drizzle late Monday morning into the afternoon as the shallow moisture may lack cloud ice. - Another Clipper Bringing Snow Thursday Night into Friday Dry conditions are expected due to surface ridging Tuesday into Thursday before another clipper system swings through Thursday night into Friday. The placement and strength of the low still varies, but there is a trend toward lower probabilities of 2 inches or more (20 to 40 percent) and 4 inches or more (20 percent) since yesterday`s forecast. Overall looking like another light widespread snow event that could bring some slick spots for the Friday morning commute. Behind the cold front Friday temperatures will fall with lake effect showers likely developing and continuing through the weekend. Friday will be our warmest day of the week with temperatures approaching 30 degrees. && .AVIATION /00Z TAFS THROUGH 00Z TUESDAY/... Issued at 625 PM EST Sun Feb 1 2026 No significant changes to the TAFs. Light snow will develop ahead of a cold front tonight. Mostly clear skies this evening will transition to light snow after 06z, leading to a period of MVFR/IFR conditions through much of the morning before conditions improve during the afternoon. && .GRR WATCHES/WARNINGS/ADVISORIES... MI...None. MARINE...None. && $$ DISCUSSION...RAH AVIATION...04

NWS GRR Office Area Forecast Discussion