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Green County Sheriff's Office
Tuesday August 18th, 2026 :: 10:48 p.m. CDT

Advisory

Special Weather Statement until 01:00AM Wednesday

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.

* AFFECTED AREAS: FOND DU LAC ... DODGE ... WASHINGTON ... JEFFERSON ... WAUKESHA ... ROCK ... WALWORTH

Address/Location
Green County Sheriff's Office
2827 6th St
Monroe, WI 53566

Contact
Emergency: 9-1-1
Non-emergencies: 608-328-9400

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Alert Details

Severity:
Moderate - Possible threat to life or property
Urgency:
Expected - Responsive action SHOULD be taken soon (within next hour)
Certainty:
Observed - Determined to have occurred or to be ongoing
Category:
Meteorological (inc. flood)
Event:
Special Weather Statement

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