FXUS63 KGRR 070733 AFDGRR Area Forecast Discussion National Weather Service Grand Rapids MI 333 AM EDT Mon Apr 7 2025 .KEY MESSAGES... - Brief period of light snow this morning possible, chilly - Mid week mixed rain/snow && .DISCUSSION... Issued at 330 AM EDT Mon Apr 7 2025 - Brief period of light snow this morning possible, chilly Low pressure moving across northern Lower will pull a cold front south across the region today, ushering in another round of winter weather. Regional radar shows a weakening band of light snow stretching from northeast Wisconsin east across the Straits with the band sinking slowly south. Short range models have scaled back the amount and duration of snowfall considerably with recent model runs. What looked like a few inches of snow possible several days ago now looks more like a half inch to an inch over the northern two rows of counties with little if anything south of there. H8 temps will fall to around -12c behind the front later this morning and afternoon. That will be enough to produce some scattered lake effect snow showers. Little if any accumulation is expected. The chilly air will be with us through Tuesday as highs will remain in the 30s before climbing into the 40s Wednesday and Thursday. - Mid week mixed rain/snow Models have held onto the theme of a weak low developing in the lee of the Rockies mid week as a northern stream wave helps to carve an upper trough over the Great Lakes. The GFS continues to be the more robust of the model solutions and is considerably deeper with the low than the ECMWF. We'll continue with the theme of mixed rain and snow developing Wednesday day and continuing into Thursday before the low moves east. Once the upper trough moves east of the region, temperatures will warm considerably as ridging moves in. Highs will be into the 60s over the weekend. && .AVIATION /06Z TAFS THROUGH 06Z TUESDAY/... Issued at 226 AM EDT Mon Apr 7 2025 At 06Z a cold front stretched from just north of the Mackinac Bridge, southwest across Northern Lake Michigan into Central Wisconsin. The front is dropping south and will usher in MVFR conditions this morning for a time at each TAF site, along with some snow showers for an hour or two. The lower clouds and light snow showers can be expected between 11Z and 17Z at the TAF sites. Otherwise VFR weather is expected as cold/dry air advects in on northerly winds. A gusty north wind of 14-30 knots can be expected today in the wake of the frontal passage. && .HYDROLOGY... Issued at 330 AM EDT Mon Apr 7 2025 Rivers continue to slowly fall across the region. Earlier this evening, we canceled the flood warning for the Red Cedar River at East Lansing. A flood warning continues for the Maple River at Maple Rapids. Little change in river levels are anticipated there as it is slow to drain in that area; the current stage is right at flood stage. && .GRR WATCHES/WARNINGS/ADVISORIES... MI...None. MARINE...Small Craft Advisory until 8 AM EDT Tuesday for LMZ844>849. && $$ DISCUSSION...04 AVIATION...Duke HYDROLOGY...04