Cascade Mountain Snow Report

550 FXUS63 KGRB 090543 AFDGRB Area Forecast Discussion National Weather Service Green Bay WI 1143 PM CST Sun Nov 8 2026 Updated aviation portion for 06Z TAF issuance .KEY MESSAGES... - Cold front will bring scattered (20-30% chance) showers Wednesday into Thursday, followed by lake effect showers across north-central Wisconsin. - Dry and above normal temperatures to start the week, dropping to near normal towards the end of the week. && .DISCUSSION... Issued at 1045 PM CST Sun Nov 8 2026 After a period of quiet, our next chance for active weather arrives Wednesday as a mid-level shortwave and accompanying cold front cross the region. Moisture and forcing along the front itself appear relatively meager, so continued the 20 to 30% chance across most of the area to signify some on and off scattered shower potential. Northerly flow then follows the cold front passage by Wednesday night, so would expect some lake effect showers to pick up overnight and last well through Thursday. This lake effect would primarily affect portions of far north-central Wisconsin along the Upper Peninsula border and possible some areas along the Lake Michigan shoreline including portions of Door, Kewaunee, and Manitowoc as winds shift northeastwards Thursday. Rain totals during the day Wednesday will be fairly light everywhere, with probabilistic guidance painting out only a 15-20% chance of exceeding a tenth of an inch. P-type will predominantly be rain, except for a brief window for some light flurries late Wednesday night and again Thursday night if lake effect showers in the north sustain themselves. The continued cold air advection through the latter part of the work week will bring down high temperatures into the 40s for most of the area, which will be near or a degree or two below normal for most of the area. && .AVIATION...for 06Z TAF Issuance Issued at 1143 PM CST Sun Nov 8 2026 VFR conditions are expected during the TAF period with only mid and high clouds streaming in at times. These clouds will provide a broken deck of high clouds from late tonight through Monday as a warm front tracks through the western Great Lakes. The clouds will then clear out from west to east late Monday afternoon through Monday evening as a weak cold front tracks right behind it. Other than the high clouds, not much else is expected with this rather dry system. Light surface winds will become gusty from the southwest during the day on Monday. Winds will then become light from the west Monday evening as increasing winds just off the surface brings a period of LLWS Monday night. && .GRB WATCHES/WARNINGS/ADVISORIES... None. && $$ DISCUSSION.....Uhlmann AVIATION.......Kurimski