Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 268, NWS Milwaukee, WI

September 4, 20264 counties in Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at Sep 4, 2026, 12:54 AM CDT for 4 counties in Wisconsin. It was in force for 51 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Sep 4, 2026, 12:54 AM CDT (05:54 UTC)
Expired
Sep 4, 2026, 1:45 AM CDT
In force
51 min
Issued by
NWS Milwaukee, WI
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Milwaukee County, WI, Ozaukee County, WI, Washington County, WI, Waukesha County, WI

The radar

The Milwaukee radar (KMKX), 46 km from the middle of the area, began a volume at 05:53 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Milwaukee, WI wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 3, 3:26 PM CDT, 9 hours 28 minutes earlier.

Area forecast discussion, Sep 3, 3:26 PM CDT, 9 hours 28 minutes before
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Hazardous weather outlook, Sep 3, 6:41 PM CDT, 6 hours 13 minutes before
Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
641 PM CDT Thu Sep 3 2026

WIZ046-047-051-052-056>060-062>072-042345-
Marquette-Green Lake-Fond du Lac-Sheboygan-Sauk-Columbia-Dodge-
Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee-
Lafayette-Green-Rock-Walworth-Racine-Kenosha-
641 PM CDT Thu Sep 3 2026

This Hazardous Weather Outlook is for portions of east central
Wisconsin, south central Wisconsin and southeast Wisconsin.

.DAY ONE...Tonight

Chance for thunderstorms, especially overnight. There is a
potential for strong to severe storms capable of producing
damaging winds. Hail and an isolated tornado are possible as
well.

Locally heavy rainfall with ponding and minor flooding is also
possible with any thunderstorms that move over the same area,
particularly overnight.

.DAYS TWO THROUGH SEVEN...Friday through Thursday

Stalling line of storms Friday morning may produce continued minor
flooding across southern Wisconsin.

Afternoon heat indices in the 90s possible in far southern
Wisconsin Friday.

Isolated to scattered storms Friday afternoon, continuing through
the overnight hours. A few storms may become severe.

A few isolated storms may linger Saturday morning.

Next storm chances develop overnight Monday into Tuesday, with
increasing heat and humidity into Wednesday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed tonight.

LMZ643>646-042345-
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
641 PM CDT Thu Sep 3 2026

This Hazardous Weather Outlook is for the nearshore waters from
Sheboygan Wisconsin to Winthrop Harbor Illinois.

.DAY ONE...Tonight

Chance for thunderstorms, especially late tonight. There is a
potential for strong to severe storms capable of producing
damaging winds. Hail and an isolated waterspout are possible as
well.

Some marine fog may also develop overnight

.DAYS TWO THROUGH SEVEN...Friday through Thursday

Isolated to scattered storms Friday afternoon, continuing through
the overnight hours. A few storms may become severe.

A few isolated storms may linger Saturday morning.

Next storm chances develop overnight Monday into Tuesday.

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-042345-
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
Lake Michigan from Seul Choix Point to Rock Island Passage 5NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and North of a line from Charlevoix MI to South
Fox Island 5NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor to Michigan City in 5NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5NM offshore to Mid
lake-
Lake Michigan from St Joseph to South Haven MI 5NM offshore to
Mid Lake-
641 PM CDT Thu Sep 3 2026

This Hazardous Weather Outlook is for the open waters of Lake Michigan.

.DAY ONE...Tonight

Chances for thunderstorms at times today, especially later in the
evening and overnight.

Marine Dense Fog may develop over the middle third of the lake
overnight.

.DAYS TWO THROUGH SEVEN...Friday through Thursday

Isolated to scattered storms Friday afternoon across the southern
half of the lake, continuing through the overnight hours. A few
storms may become severe.

A few isolated storms may linger Saturday morning across the
southern half.

Next storm chances develop overnight Monday into Tuesday across
all of Lake Michigan.

www.weather.gov/mkx

The office that day

Everything else NWS Milwaukee, WI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 3, 8:54 PM CDTSpecial Weather StatementMKXMarquette51 min
Sep 3, 10:20 PM CDTSpecial Weather StatementMKXFond du Lac40 min
Sep 3, 10:25 PM CDTSevere Thunderstorm WarningMKXDodge, Fond du Lac, Green Lake35 min
Sep 3, 10:53 PM CDTSevere Thunderstorm Warning Considerable damage threatMKXDodge, Fond du Lac, Washington52 min
Sep 3, 11:23 PM CDTSevere Thunderstorm Warning Considerable damage threatMKXDodge, Washington67 min
Sep 3, 11:30 PM CDTAreal Flood AdvisoryMKXDodge, Fond du Lac, Washington2 hr
Sep 3, 11:45 PM CDTSevere Thunderstorm Warning Destructive damage threatMKXDodge, Washington30 min
Sep 4, 12:04 AM CDTSevere Thunderstorm Warning Considerable damage threatMKXDodge, Milwaukee, Ozaukee, Washington, Waukesha56 min
Sep 4, 12:28 AM CDTAreal Flood AdvisoryMKXMilwaukee, Ozaukee, Washington, Waukesha103 min
Sep 4, 12:33 AM CDTSpecial Weather StatementMKXFond du Lac42 min
Sep 4, 12:38 AM CDTSevere Thunderstorm WarningMKXFond du Lac52 min
Sep 4, 12:50 AM CDTSpecial Marine WarningMKX85 min
Sep 4, 1:03 AM CDTSevere Thunderstorm WarningMKXFond du Lac, Sheboygan42 min
Sep 4, 1:11 AM CDTSevere Thunderstorm WarningMKXFond du Lac, Sheboygan49 min
Sep 4, 1:17 AM CDTSpecial Marine WarningMKX118 min
Sep 4, 1:34 AM CDTSevere Thunderstorm WarningMKXSheboygan41 min
Sep 4, 1:40 AM CDTSevere Thunderstorm Warning Considerable damage threatMKXFond du Lac, Green Lake, Marquette80 min
Sep 4, 2:11 AM CDTSpecial Marine WarningMKX64 min
Sep 4, 2:14 AM CDTSevere Thunderstorm WarningMKXSheboygan16 min
Sep 4, 2:35 AM CDTAreal Flood AdvisoryMKXFond du Lac2 hr
Sep 4, 2:37 AM CDTSevere Thunderstorm WarningMKXDodge, Fond du Lac, Ozaukee, Sheboygan, Washington53 min
Sep 4, 3:08 AM CDTSpecial Marine WarningMKX97 min
Sep 4, 5:29 AM CDTAreal Flood AdvisoryMKXSheboygan3 hr
Sep 4, 5:56 AM CDTFlash Flood WarningMKXSheboygan3 hr
Sep 4, 6:26 AM CDTAreal Flood AdvisoryMKXFond du Lac, Green Lake, Marquette3 hr
Sep 4, 7:40 AM CDTAreal Flood AdvisoryMKXFond du Lac2 hr
Sep 4, 8:25 AM CDTSpecial Marine WarningMKX65 min
Sep 4, 9:24 AM CDTSpecial Weather StatementMKXDane51 min
Sep 4, 9:35 AM CDTSpecial Weather StatementMKXWaukesha40 min
Sep 4, 10:39 AM CDTSpecial Weather StatementMKXMilwaukee, Racine51 min
Sep 4, 10:41 AM CDTSpecial Marine WarningMKX33 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2026Every severe thunderstorm warning in 2026

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.