Lappe Nordic Centre Snow Report

681 FXUS63 KGRB 190651 AFDGRB Area Forecast Discussion National Weather Service Green Bay WI 151 AM CDT Wed Aug 19 2026 Forecast discussion for routine morning forecast issuance .KEY MESSAGES... - Some early morning patchy fog, otherwise quiet weather today, then showers and a few storms arrive Thursday afternoon into Friday (50-80% chance). A drought busting rain is not expected. - High temps remain near seasonal norms into the weekend with a few cool nights across northern WI. && .DISCUSSION... Issued at 151 AM CDT Wed Aug 19 2026 Shower/Storm Potential...Next round of organized showers and storms arrives Thursday into Friday (50-80% chance), as a cold front and shortwave drop across the state. Initial WAA precip could arrive late Thursday morning or early afternoon across north central WI, but higher chances for rain hold off until Thursday night. Another round of showers/storms is expected on Friday, especially over eastern WI, as the front crosses the region. Locally heavy rainfall will be possible with any storm as PWATs climb to ~1.5" and soundings showing tall/skinny CAPE. However, this won`t be a drought buster type of event and some spots may miss out on any appreciable rain. Widespread severe weather is not expected Thursday night as better instability/forcing remains to our west. Will need to watch Friday afternoon if the front slows down a little and we can destabilize, as dewpoints will climb into the mid to possibly upper 60s ahead of the front. Lingering showers are possible this weekend as northwest flow sets up across the Great Lakes. The next chance for showers and storms arrives early next week with the arrival of another low pressure system and cold front. Fog Potential...Light winds and clearing skies will lead to some patchy fog development across portions of the area early this morning, especially where the heavier rain fell last evening. The fog could be dense in a few spots. The fog will linger through sunrise then burn off. The drier air should hold off fog development tonight. Temps & Humidity Levels...High temps will remain pretty close to seasonal norms this week and into the weekend with highs mainly in the mid 70s to low 80s. Some cool August nights are expected across northern WI tonight and again this weekend with lows mainly in the 40s, with a few upper 30s in the typical cold spots possible. Less humid air arrives today as dewpoints drop into the upper 30s to low 50s. Humidity levels will climb on Friday as the next system moves across the region, then drop off slightly for the weekend. && .AVIATION...for 06Z TAF Issuance Issued at 1035 PM CDT Tue Aug 18 2026 Showers have gradually come to an end across the forecast area late this evening as a cold front continues to sink south, leaving clearing skies and VFR conditions in their wake. More stable air then filters in behind the front on Wednesday, leaving us with a fair weather cu field at around 5 to 7k ft developing a couple hours after daybreak. CAMs still showing a signal for patchy fog developing overnight, though would likely be limited to areas that recently received rainfall. Have retained VFR vsbys for this TAF issuance due to uncertainty of fog coverage. Northwest winds gusting to 15 knots will be possible during the first couple hours of the TAF period, eventually subsiding to light and variable overnight. && .GRB WATCHES/WARNINGS/ADVISORIES... None. && $$ DISCUSSION.....Bersch AVIATION.......Goodin