055 FXUS63 KGRR 181050 AFDGRR Area Forecast Discussion National Weather Service Grand Rapids MI 650 AM EDT Sun Oct 18 2026 .KEY MESSAGES... - Quite a Quiet Weather Week && .DISCUSSION... Issued at 156 AM EDT Sun Oct 18 2026 - Quite a Quiet Weather Week Not much in terms of weather this week as the upper trough is replaced by ridging and surface high pressure much of the week. There could be a frontal passage on Thursday but moisture appears to be non-sfficient for any chance of showers. We will probably have to wait until the weekend for any real chance of rain. NOTE: The 2026 growing season will end this morning as soon as the Frost Advisory expires. && .AVIATION /12Z TAFS THROUGH 12Z MONDAY/... Issued at 650 AM EDT Sun Oct 18 2026 VFR conditions will continue through tonight. Southwest winds around 10 knots today with some gusts over 20 knots at times, especially at MKG. && .MARINE... Issued at 156 AM EDT Sun Oct 18 2026 No changes to the advisory. Some gusts to 35 knots are possible today, especially along Big and Little Sable point and an upgrade to a Gale Warning may be needed there. && .GRR WATCHES/WARNINGS/ADVISORIES... MI...Frost Advisory until 8 AM EDT this morning for MIZ064>067- 071>074. MARINE...Small Craft Advisory until 11 PM EDT this evening for LMZ844>849. && $$ DISCUSSION...Ostuno AVIATION...Ostuno MARINE...Ostuno

NWS GRR Office Area Forecast Discussion