232 FXUS63 KGRR 210415 AFDGRR Area Forecast Discussion National Weather Service Grand Rapids MI 1115 PM EST Sat Dec 20 2025 .KEY MESSAGES... - No major impacts to travel this week && .DISCUSSION... Issued at 300 PM EST Sat Dec 20 2025 - No major impacts to travel this week Very light precipitation along a cold front should be clearing the southeast zones early this evening. Temperatures are above freezing and any precip will be light. Temperatures fall below freezing this evening and some scattered lake effect snow showers are expected late this evening, with any measurable snow confined to the western forecast area after midnight. Inversion heights are only about 4 kft so accums generally a dusting to an inch. The only other weather of note comes Monday morning. An area of warm advection could bring light accums of snow, generally an inch or two with surface temperatures near freezing. Some untreated roads could be slippery, otherwise no impacts expected. A thaw period with temperatures mostly above freezing can be expected for mid-week including Christmas Day. A transition to below freezing temperatures occurs by the weekend, but no big storms are in the offing during the cooling. && .AVIATION /06Z TAFS THROUGH 06Z MONDAY/... Issued at 1115 PM EST Sat Dec 20 2025 Strong northwest with gusts 30 to 40 knots continue to move through the area behind the front. The higher end gusts will drop off after 6Z but winds still gust in the 20 to 30 knot range into Sunday morning. Cloud cover will expand with ceilings around 3500 to 4000 feet lowering to around 2000 feet. Some light snow and flurries will be possible. Any accumulations will be light with only a light dusting expected. Winds weaken during the late morning with clouds scattering out as we head through Sunday afternoon and evening. && .GRR WATCHES/WARNINGS/ADVISORIES... MI...Wind Advisory until 4 AM EST Sunday for MIZ037>040-043>046- 050>052-056>059. MARINE...Gale Warning until 4 AM EST Sunday for LMZ844>849. && $$ DISCUSSION...Ostuno AVIATION...RAH

NWS GRR Office Area Forecast Discussion