| Event | Special Weather Statement |
| Severity | Moderate |
| Urgency | Expected |
| Certainty | Observed |
| Area | Fond Du Lac; Dodge; Washington; Jefferson; Waukesha; Rock; Walworth |
| Effective | 8/18/2026, 10:47:00 PM CDT |
| Expires | 8/19/2026, 1:00:00 AM CDT |
Special Weather Statement issued August 18 at 10:47PM CDT by NWS Milwaukee/Sullivan WI
Details
Fog developed in the Rock River Valley from Watertown to
Janesville, Horicon Marsh, and portions of Fond du Lac County. The
fog is gradually expanding eastward. Expect visibility of 1 mile
or less in low-lying areas. If traveling, use low beam headlights
and slow down when encountering sudden drops in visibility.
This alert was automatically posted by SkyGuard, MWSC’s severe weather alerting system. Source: National Weather Service.
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