| Event | Dense Fog Advisory |
| Severity | Moderate |
| Urgency | Expected |
| Certainty | Likely |
| Area | Shawano; Portage; Waupaca; Outagamie; Brown; Kewaunee; Waushara; Winnebago; Calumet; Manitowoc; Southern Oconto County |
| Effective | 10/20/2026, 4:27:00 AM CDT |
| Expires | 10/20/2026, 10:00:00 AM CDT |
Dense Fog Advisory issued October 20 at 4:27AM CDT until October 20 at 10:00AM CDT by NWS Green Bay WI
Details
* WHAT…Visibility one quarter mile or less in dense fog.
* WHERE…Portions of central, east central, and northeast Wisconsin.
* WHEN…Until 10 AM CDT this morning.
* IMPACTS…Low visibility could make driving conditions hazardous.
Instructions
If driving, slow down, use your headlights, and leave plenty of
distance ahead of you.
This alert was automatically posted by SkyGuard, MWSC’s severe weather alerting system. Source: National Weather Service.
More Stories
⚠️ Dense Fog Advisory – Marquette; Green Lake; Dodge – Tuesday, October 20, 2026
⚠️ Dense Fog Advisory – Fond Du Lac; Sheboygan; Washington; Ozaukee; Waukesha; Milwaukee; Racine; Kenosha – Tuesday, October 20, 2026
⚠️ Special Weather Statement – Southern Dona Ana County/Mesilla Valley; West Central Tularosa Basin/White Sands; Southeast Tularosa Basin; Western El Paso County; Eastern/Central El Paso County – Monday, October 19, 2026