FXUS63 KGRR 090535 AFDGRR Area Forecast Discussion National Weather Service Grand Rapids MI 135 AM EDT Fri May 9 2025 .KEY MESSAGES... - Frost/Freeze Tonight with Quiet Weather into Early Next Week && .DISCUSSION... Issued at 315 PM EDT Thu May 8 2025 A Freeze Warning is in effect tonight for the northern two rows of counties with a Frost Advisory elsewhere. Surface ridging with subsidence and drying this afternoon will continue into tonight with decreasing winds. This will allow good radiational cooling conditions and, with dew points dropping into the 20s overnight, air temperatures should fall below freezing across much of the northern interior zones and into the lower to mid 30s elsewhere. We will have a dry forecast through the weekend but will have to watch the potential for some showers attending a cold front passage Saturday morning, mostly across the northern half of the forecast area where moisture is deeper. A cut off low near the Gulf Coast over the weekend will move northeast as it gets kicked out by a deepening western CONUS trough. This will bring an increasing chance of showers for Tuesday and Wednesday. Latest trends show the higher chances for rain off to the southeast of our area. && .AVIATION /06Z TAFS THROUGH 06Z SATURDAY/... Issued at 135 AM EDT Fri May 9 2025 VFR expected today with clear skies. Winds will stay under 10 knots most of the time, from the northeast this morning, becoming more northwest or west during the afternoon. MKG winds will become west-northwest earlier as the lake breeze pushes in. && .MARINE... Issued at 315 PM EDT Thu May 8 2025 Choppy conditions near the points will be calming down by this evening. Winds and waves should remain below SCA through the weekend. && .GRR WATCHES/WARNINGS/ADVISORIES... MI...Freeze Warning until 9 AM EDT this morning for MIZ037>040- 043>046. Frost Advisory until 9 AM EDT this morning for MIZ050>052- 056>059-064>067-071>074. MARINE...None. && $$ DISCUSSION...Ostuno AVIATION...CAS MARINE...Ostuno