FXUS63 KGRB 020853 AFDGRB Area Forecast Discussion National Weather Service Green Bay WI 253 AM CST Mon Feb 2 2026 Forecast discussion for routine morning forecast issuance .KEY MESSAGES... - Slippery conditions from last night's snow and patchy freezing drizzle may extend into this morning's commute, especially on untreated secondary roads. - A clipper system may impact the area Thursday and Friday. This system has the potential to bring minor snow accumulations and gusty winds, followed by a brief return to colder temperatures. - Highs in the 20s will be common for much of the week, with the warmest days occurring Thursday and Monday, when some locations may reach the lower to middle 30s. && .DISCUSSION... Issued at 252 AM CST Mon Feb 2 2026 Light snow over eastern WI will continue to shift east early this morning as a short-wave and associated cold front move out of the region. Scattered lake-effect snow showers will linger across far NC WI during the day, and probably into tonight. Otherwise scattered flurries and patchy freezing drizzle (across the far south part of the forecast area) should taper off around daybreak. Slippery roads from last night's snow and patchy freezing drizzle may linger into the morning commute, especially on any untreated secondary roads. Overcast conditions should give way to a few breaks as the day wears on, and this should help boost temperatures into the upper teens and lower 20s northwest to the middle to upper 20s elsewhere. More widespread clearing occurs tonight, except in far NC WI, where some lake-effect clouds persist. Partly cloudy skies and light winds should allow temperatures to drop into the single digits above and below zero. A period of high pressure will bring dry conditions Tuesday through Wednesday night as the upper-level pattern re-amplifies. An upper ridge strengthens over the western U.S. while a mean trough reinforces itself over the East. This set-up will pave the way for another clipper system Thursday into Friday. Model trends are leaning toward a farther north track through Ontario with this system; perhaps as far north as Hudson/James Bays. If this occurs, would expect less snow and a bit warmer temperatures. Gusty NW-N winds would still occur on Friday, but with a lower chance of gales on Lake Michigan. Temperatures remain on the milder side through most of the period, with highs mainly in the 20s, and even some lower to middle 30s in C/EC WI Thursday and Monday. A brief shot of below normal temperatures arrives in the wake of the late week clipper system, but temperatures should rebound a bit by the end of the weekend. && .AVIATION...for 06Z TAF Issuance Issued at 1100 PM CST Sun Feb 1 2026 Mainly MVFR ceilings and visibilities will continue overnight, with pockets of IFR conditions at times. The flurries and light snow will come to an end from west to east across most locations late this evening and overnight, possibly ending as a brief period of freezing drizzle, as a cold front and low pressure system exit the region. However, better chance of seeing the freezing drizzle will be across southern WI (where the lower IFR and LIFR ceilings reside), so will not include in any TAF. Not much snow accumulation is expected, with totals up to around a half inch in most locations. A light glaze is possible where the FZDZ occurs. Clouds linger into Monday at times, with downsloping northwest winds allowing for a least some partial clearing across central and eastern WI, but some mid and high clouds will also be arriving. Some light lake effect snow showers or flurries will remain possible mainly over north-central WI due to the northwest flow over Lake Superior, possibly impacting RHI. South/southwest winds this evening ahead of the front will shift to thewest/northwest overnight into Monday morning remaining under ~10 kts or less. && .GRB WATCHES/WARNINGS/ADVISORIES... None. && $$ DISCUSSION.....Kieckbusch AVIATION.......Bersch