823 FXUS63 KGRB 162358 AFDGRBArea Forecast Discussion National Weather Service Green Bay WI 658 PM CDT Tue Sep 16 2025
Updated aviation portion for 00Z TAF issuance
.KEY MESSAGES...
- Patchy dense fog possible again late tonight into Wednesday morning, may impact travel over north-central to far northeast and east-central WI.
- Isolated strong storms could produce small hail and gusty winds over far northern Wisconsin on Wednesday afternoon and evening. Additional scattered showers and storms are possible at times Thursday through Monday. No severe storms are expected.
- Temperatures about 10 to 15 degrees above normal through Wednesday, before returning to near normal from Friday into the weekend.
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.DISCUSSION... Issued at 238 PM CDT Tue Sep 16 2025
Fog Tonight... Low level moisture increases through the overnight period will bring back ground fog to the region tonight and may allow for some fog across Lake Michigan and along the shoreline as well. Best fog potential will likely be around portions of north- central Wisconsin, which will be along the northern edge of the moisture push while also having the cooler air temperatures. Probability of less than a mile visibility remains low (
NWS GRB Office Area Forecast Discussion