FXUS63 KGRB 031726 AFDGRB Area Forecast Discussion National Weather Service Green Bay WI 1126 AM CST Tue Feb 3 2026 Updated aviation portion for 18Z TAF issuance .KEY MESSAGES... - Next chance for widespread light snow/wintry precip arrives Thursday morning, lasting through Friday morning. Greatest chances for 1 inch of snow are across northern Vilas and along the Door Peninsula. - Temperatures to be above normal throughout the week, with central Wisconsin seeing a chance at above freezing highs on Thursday. && .DISCUSSION... Issued at 1238 AM CST Tue Feb 3 2026 High pressure influence to our north continues to be prevalent early this morning, with only a lake effect stratus deck parked over the northern half of the forecast area. Combination of high pressure under weak ridging then continues to result in dry conditions and near normal temperatures through at least Wednesday. Precip chances... Synoptic pattern begins to re-amplify toward the end of the week as low pressure deepens over the Hudson Bay, bringing our next chances for light snow or a wintry mix. Trends seem to be holding steady as most ensembles take the track of the clipper further north, though the brief dry spell is still likely to come to an end for most. First round of isentropically-forced precip looks to develop along the leading edge of a swath of WAA Thursday morning, bringing a short-lived round of light snow area-wide. Potential exists for light rain to mix in with snow at times across central Wisconsin where surface temperatures will read at/near freezing, though suspect snow will be the dominant p-type due to the shallow nature of the warmer near-surface layer. Cold FROPA then occurs Friday morning, bringing with it a second round of snow mainly to the lake effect belts. LREF grand ensemble continues to show the greatest chance for 1 inch of snow (30 to 50%) over northern Vilas and along the Door Peninsula as winds veer to northwesterly. Could see a scenario in which some freezing drizzle mixes in Friday morning due to a shallow supercooled moist layer, though this will depend on efficiency of ice production. For the time being, have limited NBM ZR wx type to ZL. Winds also ramp up on Friday as the pressure gradient tightens up along the front, with surface gusts to 25 mph possible Friday afternoon within deeper mixing. Temperatures... Near normal temperatures mainly in the 20s prevail throughout the week, with some locations across central Wisconsin even seeing a chance at above freezing highs on Thursday. A quick shot of colder air arrives behind the passage of the clipper on Saturday, though should moderate back to above normal heading into the next work week. && .AVIATION...for 18Z TAF Issuance Issued at 1126 AM CST Tue Feb 3 2026 Cool NW flow and some moisture will keep SCT-BKN MVFR stratus and a few flurries over northern WI (RHI) and in Door County. Should stay mostly sunny otherwise until mid clouds move in this evening. May also see at least SCT MVFR expand over rest of the terminals this evening (BKN cigs possible over northern WI and into central WI as well) and this could linger through the end of the TAF period. North winds up to 10 kts this afternoon, but will stay light the rest of the time. && .GRB WATCHES/WARNINGS/ADVISORIES... None. && $$ DISCUSSION.....Goodin AVIATION.......JLA