Frost Advisory
Status
Event Continued Active alertStart Time
Mon 05/11/2026 05:11 AM EDTEnd Time
Mon 05/11/2026 09:00 AM EDTSignificance
AdvisoryImpacts
Low impact
Locations Affected
Madison, WI ∙ Waukesha, WI ∙ Janesville, WI ∙ Sullivan, WI ∙ Clyde, WI ∙ Jericho, WI ∙ Postville, WI ∙ Lake Five, WI ∙ Mount Pleasant, WI ∙ Richfield, WIFull Alert Message
URGENT - WEATHER MESSAGE National Weather Service Milwaukee/Sullivan WI 411 AM CDT Mon May 11 2026 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING... * WHAT...Low temperatures in the lower to middle 30s will result in frost formation. * WHERE...Portions of east central, south central, and southeast Wisconsin. * WHEN...Until 8 AM CDT this morning. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. Cover them up or bring them indoors.
Technical Header
WIZ046-047-051-052-056>060-062>065-067>070-111300- /O.CON.KMKX.FR.Y.0007.000000T0000Z-260511T1300Z/ Marquette-Green Lake-Fond du Lac-Sheboygan-Sauk-Columbia-Dodge- Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Lafayette-Green- Rock-Walworth- Including the cities of Madison, Barneveld, Waupun, Neshkoro, Montello, Portage, Beloit, Monroe, East Troy, Muskego, Princeton, New Berlin, Berlin, Delavan, Blanchardville, Mequon, Beaver Dam, Belmont, Baraboo, Darlington, Waukesha, Columbus, Shullsburg, Endeavor, Menomonee Falls, West Bend, Howards Grove, Westfield, Sauk City, Brookfield, Lake Wisconsin, Lake Geneva, Watertown, Plymouth, Brodhead, Markesan, Lodi, Benton, Oostburg, Oxford, Mineral Point, Prairie Du Sac, Jefferson, Mayville, Whitewater, Janesville, Cedarburg, Sheboygan Falls, Germantown, Hartford, Fort Atkinson, Fond Du Lac, Reedsburg, Dodgeville, Grafton, Elkhorn, and Argyle 411 AM CDT Mon May 11 2026
