Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 9, NWS Milwaukee, WI

March 31, 2026Kenosha County, Rock County, Walworth County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at Mar 31, 2026, 11:55 AM CDT for Kenosha County, Rock County, Walworth County, Wisconsin. It was in force for 50 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Mar 31, 2026, 11:55 AM CDT (16:55 UTC)
Expired
Mar 31, 2026, 12:45 PM CDT
In force
50 min
Issued by
NWS Milwaukee, WI
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

Counties Kenosha County, WI, Rock County, WI, Walworth County, WI

The radar

The Milwaukee radar (KMKX), 41 km from the middle of the area, began a volume at 16:55 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 4.9 hours before the alert went out and 274 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Lincoln, IL at 12:00Z on 2026-03-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 61 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 12:00Z on 2026-03-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 379 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
61 J/kg
Mixed-layer CIN
-469 J/kg
Mixed-layer LCL
1299 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
379 m²/s²
0-3 km storm-relative helicity
469 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

658 
WUUS53 KMKX 311655
SVRMKX
WIC059-105-127-311745-
/O.NEW.KMKX.SV.W.0009.260331T1655Z-260331T1745Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Milwaukee/Sullivan WI
1155 AM CDT Tue Mar 31 2026

The National Weather Service in Milwaukee/Sullivan has issued a

* Severe Thunderstorm Warning for...
  Central Walworth County in southeastern Wisconsin...
  Southeastern Rock County in south central Wisconsin...
  Northwestern Kenosha County in southeastern Wisconsin...

* Until 1245 PM CDT.

* At 1155 AM CDT, a severe thunderstorm was located over Sharon, or 9
  miles northwest of Harvard, moving northeast at 35 mph.

  HAZARD...Quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Damage to vehicles is expected.

* Locations impacted include...
  Elkhorn, Delavan, Lake Geneva, East Troy, Williams Bay, Walworth,
  Fontana-On-Geneva Lake, Sharon, Darien, Como, Potter Lake, Bohners
  Lake, Burlington, Springfield, Honey Creek, Allens Grove, and
  Delavan Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4254 8886 4284 8831 4262 8830 4261 8830
      4262 8822 4263 8819 4267 8818 4267 8813
      4265 8811 4249 8863 4249 8878
TIME...MOT...LOC 1655Z 237DEG 30KT 4252 8875 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH

$$

CMILLER
5 follow-up statements
379 
WWUS53 KMKX 311656
SVSMKX

Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
1156 AM CDT Tue Mar 31 2026

WIC059-311706-
/O.CAN.KMKX.SV.W.0009.000000T0000Z-260331T1745Z/
Kenosha WI-
1156 AM CDT Tue Mar 31 2026

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN KENOSHA COUNTY IS
CANCELLED...

The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

&&

LAT...LON 4254 8886 4284 8831 4259 8831 4249 8862
      4249 8878
TIME...MOT...LOC 1656Z 237DEG 30KT 4252 8874 

$$

WIC105-127-311745-
/O.CON.KMKX.SV.W.0009.000000T0000Z-260331T1745Z/
Walworth WI-Rock WI-
1156 AM CDT Tue Mar 31 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 PM CDT
FOR CENTRAL WALWORTH AND SOUTHEASTERN ROCK COUNTIES...

At 1156 AM CDT, a severe thunderstorm was located over Sharon, or 9
miles southwest of Delavan, moving northeast at 35 mph.

HAZARD...Quarter size hail.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is expected.

Locations impacted include...
Elkhorn, Delavan, Lake Geneva, East Troy, Williams Bay, Walworth,
Fontana-On-Geneva Lake, Sharon, Darien, Como, Potter Lake,
Burlington, Springfield, Allens Grove, and Delavan Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4254 8886 4284 8831 4259 8831 4249 8862
      4249 8878
TIME...MOT...LOC 1656Z 237DEG 30KT 4252 8874 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH

$$

CMILLER
705 
WWUS53 KMKX 311701
SVSMKX

Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
1201 PM CDT Tue Mar 31 2026

WIC105-311711-
/O.CAN.KMKX.SV.W.0009.000000T0000Z-260331T1745Z/
Rock WI-
1201 PM CDT Tue Mar 31 2026

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ROCK COUNTY IS
CANCELLED...

The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

&&

LAT...LON 4259 8878 4284 8831 4259 8831 4249 8861
      4249 8877
TIME...MOT...LOC 1701Z 237DEG 30KT 4254 8869 

$$

WIC127-311745-
/O.CON.KMKX.SV.W.0009.000000T0000Z-260331T1745Z/
Walworth WI-
1201 PM CDT Tue Mar 31 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 PM CDT
FOR CENTRAL WALWORTH COUNTY...

At 1201 PM CDT, a severe thunderstorm was located near Sharon, or
near Delavan, moving northeast at 35 mph.

HAZARD...Quarter size hail.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is expected.

Locations impacted include...
Elkhorn, Delavan, Lake Geneva, East Troy, Williams Bay, Walworth,
Fontana-On-Geneva Lake, Sharon, Darien, Como, Potter Lake,
Burlington, Springfield, Allens Grove, and Delavan Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4259 8878 4284 8831 4259 8831 4249 8861
      4249 8877
TIME...MOT...LOC 1701Z 237DEG 30KT 4254 8869 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH

$$

CMILLER
113 
WWUS53 KMKX 311715
SVSMKX

Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
1215 PM CDT Tue Mar 31 2026

WIC127-311745-
/O.CON.KMKX.SV.W.0009.000000T0000Z-260331T1745Z/
Walworth WI-
1215 PM CDT Tue Mar 31 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 PM CDT
FOR SOUTHEASTERN WALWORTH COUNTY...

At 1214 PM CDT, a severe thunderstorm was located over Williams Bay,
moving northeast at 35 mph.

HAZARD...Quarter size hail.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is expected.

Locations impacted include...
Elkhorn, Delavan, Lake Geneva, East Troy, Williams Bay, Walworth,
Fontana-On-Geneva Lake, Como, Potter Lake, Burlington, Springfield,
and Delavan Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4284 8831 4259 8831 4251 8856 4256 8867
      4264 8869
TIME...MOT...LOC 1714Z 237DEG 30KT 4260 8856 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH

$$

CMILLER
621 
WWUS53 KMKX 311734
SVSMKX

Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
1234 PM CDT Tue Mar 31 2026

WIC127-311745-
/O.CON.KMKX.SV.W.0009.000000T0000Z-260331T1745Z/
Walworth WI-
1234 PM CDT Tue Mar 31 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 PM CDT
FOR NORTHEASTERN WALWORTH COUNTY...

At 1233 PM CDT, a severe thunderstorm was located near Bohners Lake,
or near Lake Geneva, moving east at 35 mph.

HAZARD...Quarter size hail.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is expected.

Locations impacted include...
East Troy, Potter Lake, and Burlington.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4284 8831 4269 8831 4267 8836 4269 8841
      4273 8852
TIME...MOT...LOC 1733Z 270DEG 30KT 4268 8837 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH

$$

CMILLER
761 
WWUS53 KMKX 311740
SVSMKX

Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
1240 PM CDT Tue Mar 31 2026

WIC127-311750-
/O.EXP.KMKX.SV.W.0009.000000T0000Z-260331T1745Z/
Walworth WI-
1240 PM CDT Tue Mar 31 2026

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN WALWORTH COUNTY
WILL EXPIRE AT 1245 PM CDT...

The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.

&&

LAT...LON 4284 8831 4269 8831 4267 8836 4269 8841
      4273 8852
TIME...MOT...LOC 1740Z 270DEG 30KT 4271 8831 

$$

CMILLER

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 Mar 31, 7:07 AM CDT, 4 hours 48 minutes earlier. Its key messages:

  • Scattered thunderstorms are possible today, particularly in the afternoon. A few storms may be severe with large hail and damaging winds the main concerns.
  • There is a trend northward with the wintry mix of snow, sleet and freezing rain for Wednesday afternoon into early Thursday afternoon. Areas mainly north of the Highway 18 and Interstate 94 corridor may be affected. Impacts to the Wednesday evening and Thursday morning commutes are possible in these areas.
  • Thunderstorms are possible Thursday afternoon and evening.
  • Additional chances for rain and a few thunderstorms Friday afternoon into Saturday.
Area forecast discussion, Mar 31, 7:07 AM CDT, 4 hours 48 minutes before
Area Forecast Discussion...UPDATED
National Weather Service Milwaukee/Sullivan WI
707 AM CDT Tue Mar 31 2026

.KEY MESSAGES...

- Scattered thunderstorms are possible today, particularly in
  the afternoon. A few storms may be severe with large hail and
  damaging winds the main concerns.

- There is a trend northward with the wintry mix of snow, sleet
  and freezing rain for Wednesday afternoon into early Thursday
  afternoon. Areas mainly north of the Highway 18 and Interstate
  94 corridor may be affected. Impacts to the Wednesday evening
  and Thursday morning commutes are possible in these areas.

- Thunderstorms are possible Thursday afternoon and evening.

- Additional chances for rain and a few thunderstorms Friday
  afternoon into Saturday.

&&

.UPDATE...
Issued 707 AM CDT Tue Mar 31 2026

A lull in shower/thunderstorm activity will continue into mid-
morning. Showers and storms are then expected to fire along the
cold front dropping through the area by early afternoon. It
still looks like there will be sufficient time for warming and
destabilization ahead of the front for the potential for a
couple strong to severe storms this afternoon. Hail and wind are
the main concerns.

Sharpened the temperature gradient across southern Wisconsin
for the upcoming day, as there will be a big drop in temps as
the front moves through. The current warm front will likely stay
in the vicinity of I-94 into mid-morning, with big changes in
temps near the front as it wobbles. Temps will be trick near the
lake as well, as the chilly lake will likely contribute to the
warm front dipping southward in the east.

DDV

&&

.SHORT TERM...
Issued 142 AM CDT Tue Mar 31 2026

Overnight through Thursday Night:

There is a lull in the showers and thunderstorms for most of the
area, with another area pushing east northeast toward the area
from eastern Iowa. This is where the southwesterly low level
jet nose is pointing into, where elevated CAPE of 1500 J/kg or
more with deep layer bulk shear of 35 to 45 knots. The low level
jet may point more into far southwest Wisconsin overnight into
early Tuesday morning, which may help generate additional
elevated convection.

CAMs have been struggling with the evening activity, and
continue to differ with what may occur into early this morning.
For now, will keep chances (40 to 50 percent) for showers and
thunderstorms into early morning on Tuesday. There is still a
risk for large hail up to one inch in diameter with any severe
storms, as mid-level lapse rates remain steep.

If scattered shower and storm activity lingers into the rest of
Tuesday morning, this could limit instability and further
convective development with the cold frontal passage later
Tuesday morning into the afternoon. There is fairly robust low
level frontogenesis response with the front, so there may still
be at least showers that occur. The thunderstorm and severe
chances will hinge on any daytime heating to occur, so
uncertainty remains for what may happen during this period. Kept
60 to 80 percent chances for showers going with the frontal
passage, but thunder chances were kept in the 30 to 40 percent
range for now.

Temperatures will still be mild ahead of the front in far
southern parts of the area, where south to southwest winds can
develop. Much cooler temperatures are expected to linger to the
north and northeast, where winds are more north to northeast.
After the front moves through, gusty north to northeast winds
should bring much cooler temperatures to the rest of the area
Tuesday night into Wednesday.

Models seem to be trending further to the northwest with the
surface low track for Wednesday into Thursday, with the low
possibly now tracking either through or to the northwest of the
area. Ensembles are more through the area, though they may trend
like the deterministic models in later runs. Thus, this would
trend the snow, sleet and freezing rain potential further north
Wednesday afternoon into early Thursday afternoon. This could
end up in mainly northern portions of the forecast area or even
more to the north if this trend continues.

For now, kept the wintry mix north of the Highway 18 and
Interstate 94 corridor for now. There may be travel impacts
wherever this sets up, so it will be monitored and eventually
messaged when more confidence in the location of the wintry mix
is found.

This system also may bring locally heavy rainfall to the area,
as ensembles have been showing 50 percent or higher probability
for amounts above 1.00 inch over northwest parts of the area. If
the northward trend continues, this may shift northward as
well. There may be some elevated thunderstorms that occur
Wednesday night and more surface-based storms for Thursday, if
milder temperatures work into the area. Too early to tell if any
stronger storms may occur with this system.

Wood

&&

.LONG TERM...
Issued 142 AM CDT Tue Mar 31 2026

Friday through Monday:

Another low pressure system should shift northeast through or
pass near the area Friday into Friday night, exiting on
Saturday. This may bring mainly rain and a few storms to the
area if this track holds. Brisk and cooler conditions then work
in for Saturday into Sunday, with high pressure working through
the region. Ensembles still have fairly high temperature spreads
for this period, depending on where the low tracks. So,
confidence in the temperature forecast this far out is low at
this time.

Wood

&&

.AVIATION...
Issued 707 AM CDT Tue Mar 31 2026

A lull in shower/thunderstorm activity will continue into mid-
morning. Showers and storms are then expected to fire along the
cold front dropping through the area by early afternoon. It
still looks like there will be sufficient time for warming and
destabilization ahead of the front for the potential for a
couple strong to severe storms this afternoon. Hail and wind are
the main concerns.

A warm front will sit west to east roughly along I-94 this
morning, with northerly winds north of the front and breezy
southerly winds south of the front. The cold front will push
through this afternoon, with the northerly winds across the
forecast area by late afternoon. Low level wind shear will
linger until mid-morning.

Lower ceilings will develop and expand north of the frontal
boundary this morning, with widespread 500 to 1500 ft ceilings
by the afternoon. Scattered to broken VFR ceilings are then
expected behind the cold front late afternoon into the evening
except for in the east where lower ceilings could linger into
tonight.

DDV

&&

.MARINE...
Issued 142 AM CDT Tue Mar 31 2026

A frontal zone should sag south to around a Milwaukee Wisconsin
to Whitehall Michigan line into the overnight hours, with both
wind flows becoming stronger over the far north and far south
portions of the lake. Some 20 to 30 knot gusts may occur over
the northern third and southern third of the lake. Showers and
thunderstorms may occur into Tuesday across the lake, with a few
stronger storms possible at times (particularly near the
frontal boundary). Large hail would be the primary hazard with
any stronger storms.

The boundary will sag further south as a cold front Tuesday
afternoon, focusing lingering shower and thunderstorm activity
over southern Lake Michigan, before washing it away later
Tuesday. Gusty north winds will build in behind the front Tuesday
evening into Wednesday, with gusts up to 30 knots. Winds should
then veer northeast through Wednesday.

High pressure around 30.7 inches will shift from Ontario to
Quebec through the late week time period, as low pressure around
29.5 inches approaches from the southwest, allowing winds to
shift east northeast. Will need to watch for gale force gusts
later this week, particularly Thursday, as the low pressure
system approaches the lake.

Winds and waves may reach Small Craft Advisory levels for the
nearshore waters Tuesday night, and may continue at times
Wednesday into Saturday.

Wood

&&

.MKX WATCHES/WARNINGS/ADVISORIES...
WI...None.
LM...Small Craft Advisory...LMZ643-LMZ644-LMZ645-LMZ646...10 PM
     Tuesday to 4 AM Friday.

&&

Visit us at weather.gov/milwaukee

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Hazardous weather outlook, Mar 31, 5:39 AM CDT, 6 hours 16 minutes before
Hazardous Weather Outlook...UPDATED
National Weather Service Milwaukee/Sullivan WI
539 AM CDT Tue Mar 31 2026

WIZ046-047-051-052-056>060-062>072-011045-
Marquette-Green Lake-Fond du Lac-Sheboygan-Sauk-Columbia-Dodge-
Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee-
Lafayette-Green-Rock-Walworth-Racine-Kenosha-
539 AM CDT Tue Mar 31 2026

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

.DAY ONE...Today and Tonight

Scattered thunderstorms are possible today, particularly in the
afternoon. A few storms may be severe with large hail and damaging
winds the main concerns.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

A wintry mix of snow, sleet and freezing rain is possible
Wednesday afternoon into early Thursday morning across areas
mainly north of the Highway 18 and Interstate 94 corridor. Travel
impacts may occur.

Some thunderstorms may occur Wednesday night into Thursday night,
and again Friday night.

Locally heavy rainfall may occur Wednesday night into Thursday
night.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed today.

LMZ643>646-011045-
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-
539 AM CDT Tue Mar 31 2026

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

.DAY ONE...Today and Tonight

Scattered thunderstorms are possible today, particularly in the
afternoon. A few storms may be severe with large hail and damaging
winds the main concerns.

A Small Craft Advisory goes into effect this evening for gusty
winds and building waves.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

The Small Craft Advisory continues into Thursday night. Winds may
hit advisory levels again over the weekend.

Some thunderstorms may occur Wednesday night into Thursday night,
and again Friday night.

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-011045-
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-
539 AM CDT Tue Mar 31 2026

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

.DAY ONE...Today and Tonight

Scattered thunderstorms are possible today, particularly in the
afternoon. A few storms may be severe with large hail and gusty winds
the main concerns.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Easterly wind gusts may approach gale force over far northern
portions of the lake on Thursday.

Some thunderstorms may occur over southern portions of the lake
Wednesday night into Thursday night, and again Friday night.

www.weather.gov/mkx

In the hours before

Special weather statement, Mar 31, 9:42 AM CDT, 2 hours 13 minutes before
Special Weather Statement
National Weather Service Milwaukee/Sullivan WI
942 AM CDT Tue Mar 31 2026

WIZ052-311515-
Sheboygan WI-
942 AM CDT Tue Mar 31 2026

...STRONG THUNDERSTORMS WILL IMPACT SHEBOYGAN COUNTY THROUGH 1015 AM
CDT...

At 942 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Southern Lake Winnebago to near
Campbellsport. Movement was east at 55 mph.

HAZARD...Wind gusts up to 40 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to vegetation is
         possible.

Locations impacted include...
Sheboygan, Plymouth, Sheboygan Falls, Howards Grove, Kohler, Elkhart
Lake, Greenbush, Waldo, Glenbeulah, Haven, and Johnsonville.

This includes Interstate 43 between mile markers 121 and 135.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4367 8771 4369 8816 4389 8816 4389 8773
      4381 8773 4376 8770 4372 8771 4370 8770
TIME...MOT...LOC 1442Z 268DEG 46KT 4393 8842 4367 8824

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

CMILLER
Special weather statement, Mar 31, 10:14 AM CDT, 1 hour 41 minutes before
Special Weather Statement
National Weather Service Milwaukee/Sullivan WI
1014 AM CDT Tue Mar 31 2026

WIZ052-311530-
Sheboygan WI-
1014 AM CDT Tue Mar 31 2026

...A STRONG THUNDERSTORM WILL IMPACT NORTHERN SHEBOYGAN COUNTY
THROUGH 1030 AM CDT...

At 1013 AM CDT, Doppler radar was tracking a strong thunderstorm over
Elkhart Lake, or 9 miles north of Plymouth, moving east at 50 mph.

HAZARD...Wind gusts up to 40 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to vegetation is
         possible.

Locations impacted include...
Sheboygan, Howards Grove, Elkhart Lake, Glenbeulah, Johnsonville, and
Haven.

This includes Interstate 43 between mile markers 127 and 135.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4376 8770 4379 8809 4389 8812 4389 8774
      4385 8773 4381 8773 4377 8770
TIME...MOT...LOC 1513Z 265DEG 43KT 4387 8802

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

CMILLER
Special weather statement, Mar 31, 10:56 AM CDT, 59 minutes before
Special Weather Statement
National Weather Service Milwaukee/Sullivan WI
1056 AM CDT Tue Mar 31 2026

WIZ072-311630-
Kenosha WI-
1056 AM CDT Tue Mar 31 2026

...A STRONG THUNDERSTORM WILL IMPACT EASTERN KENOSHA COUNTY THROUGH
1130 AM CDT...

At 1056 AM CDT, Doppler radar was tracking a strong thunderstorm near
Paddock Lake, moving east at 30 mph.

HAZARD...Nickel size hail.

SOURCE...Radar indicated.

IMPACT...Minor hail damage to vegetation is possible.

Locations impacted include...
Kenosha, Pleasant Prairie, Paddock Lake, Winthrop Harbor, Salem,
Bristol, and Somers.

This includes Interstate 41/94 between mile markers 339 and 349.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4261 8812 4267 8784 4267 8781 4261 8782
      4259 8781 4252 8781 4249 8780 4250 8810
TIME...MOT...LOC 1556Z 260DEG 27KT 4254 8801

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...<30 MPH

CMILLER
Special weather statement, Mar 31, 11:38 AM CDT, 17 minutes before
Special Weather Statement
National Weather Service Milwaukee/Sullivan WI
1138 AM CDT Tue Mar 31 2026

WIZ069-311715-
Rock WI-
1138 AM CDT Tue Mar 31 2026

...STRONG THUNDERSTORMS WILL IMPACT SOUTHERN ROCK COUNTY THROUGH 1215
PM CDT...

At 1138 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Orfordville to near Poplar Grove. Movement
was east at 40 mph.

HAZARD...Penny size hail.

SOURCE...Radar indicated.

IMPACT...Minor hail damage to vegetation is possible.

Locations impacted include...
Janesville, Beloit, Clinton, Tiffany, Hanover, Johnstown Center,
Foxhollow, Avalon, Afton, Shopiere, Lima Center, and Emerald Grove.

This includes the following highways...
 Interstate 39/90 between mile markers 172 and 187.
 Interstate 43 between mile markers 0 and 11.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4250 8913 4258 8929 4280 8882 4278 8878
      4249 8878
TIME...MOT...LOC 1638Z 252DEG 33KT 4260 8920 4241 8885

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...<30 MPH

CMILLER
Special weather statement, Mar 31, 11:50 AM CDT, 5 minutes before
Special Weather Statement
National Weather Service Milwaukee/Sullivan WI
1150 AM CDT Tue Mar 31 2026

WIZ069-070-311745-
Walworth WI-Rock WI-
1150 AM CDT Tue Mar 31 2026

...A STRONG THUNDERSTORM WILL IMPACT WALWORTH AND SOUTHEASTERN ROCK
COUNTIES THROUGH 1245 PM CDT...

At 1150 AM CDT, Doppler radar was tracking a strong thunderstorm near
Sharon, or 8 miles north of Poplar Grove, moving northeast at 35 mph.

HAZARD...Nickel size hail.

SOURCE...Radar indicated.

IMPACT...Minor hail damage to vegetation is possible.

Locations impacted include...
Elkhorn, Delavan, Lake Geneva, East Troy, Williams Bay, Walworth,
Clinton, Fontana-On-Geneva Lake, Sharon, Darien, Como, Pell Lake,
Potter Lake, Powers Lake, Burlington, Springfield, Abells Corners,
Allens Grove, Delavan Lake, and Foxhollow.

This includes the following highways...
 U.S. Highway 12 between mile markers 320 and 335.
 Interstate 43 between mile markers 8 and 40.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4250 8895 4252 8896 4284 8831 4255 8831
      4249 8854
TIME...MOT...LOC 1650Z 237DEG 30KT 4250 8880

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...<30 MPH

CMILLER
Special weather statement, Mar 31, 11:52 AM CDT, 3 minutes before
Special Weather Statement
National Weather Service Milwaukee/Sullivan WI
1152 AM CDT Tue Mar 31 2026

WIZ047-051-052-057-058-311800-
Dodge WI-Columbia WI-Green Lake WI-Sheboygan WI-Fond Du Lac WI-
1152 AM CDT Tue Mar 31 2026

...STRONG THUNDERSTORMS WILL IMPACT FOND DU LAC...SOUTHERN GREEN
LAKE...NORTHEASTERN COLUMBIA...NORTHERN DODGE AND NORTHWESTERN
SHEBOYGAN COUNTIES THROUGH 100 PM CDT...

At 1151 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near High Cliff State Park to 7 miles northeast
of Pardeeville. Movement was east at 30 mph.

HAZARD...Half inch hail.

SOURCE...Radar indicated.

IMPACT...Minor hail damage to vegetation is possible.

Locations impacted include...
Fond Du Lac, Waupun, Plymouth, Ripon, North Fond Du Lac, Lomira,
Campbellsport, Randolph, Markesan, Oakfield, Rosendale, Elkhart Lake,
Brandon, Cambria, Southern Lake Winnebago, Taycheedah, Ashford,
Lamartine, Byron, and Greenbush.

This includes the following highways...
 U.S. Highway 151 between mile markers 137 and 163, and between mile
markers 165 and 169.
 Interstate 41 between mile markers 81 and 109.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4389 8816 4389 8778 4353 8840 4350 8901
      4364 8928 4390 8876 4389 8841 4394 8840
      4394 8817
TIME...MOT...LOC 1651Z 278DEG 28KT 4410 8823 4364 8924

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...<30 MPH

WAGNER

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 30, 11:00 PM CDTSpecial Weather StatementMKXSheboygan30 min
Mar 30, 11:01 PM CDTSpecial Weather StatementMKXRacine14 min
Mar 30, 11:19 PM CDTSpecial Marine WarningMKX26 min
Mar 31, 1:14 AM CDTSpecial Weather StatementMKXRock46 min
Mar 31, 3:17 AM CDTSmall Craft AdvisoryMKX3 days
Mar 31, 4:30 AM CDTSpecial Marine WarningMKX90 min
Mar 31, 8:04 AM CDTSpecial Weather StatementMKXMarquette41 min
Mar 31, 8:29 AM CDTSpecial Weather StatementMKXGreen Lake46 min
Mar 31, 8:47 AM CDTSevere Thunderstorm WarningMKXFond du Lac, Green Lake43 min
Mar 31, 9:12 AM CDTSpecial Weather StatementMKXFond du Lac48 min
Mar 31, 9:42 AM CDTSpecial Weather StatementMKXSheboygan33 min
Mar 31, 10:14 AM CDTSpecial Weather StatementMKXSheboygan16 min
Mar 31, 10:29 AM CDTSpecial Marine WarningMKX31 min
Mar 31, 10:45 AM CDTSevere Thunderstorm WarningMKXKenosha, Racine, Walworth45 min
Mar 31, 10:56 AM CDTSpecial Weather StatementMKXKenosha34 min
Mar 31, 10:58 AM CDTSpecial Marine WarningMKX78 min
Mar 31, 11:03 AM CDTSevere Thunderstorm WarningMKXKenosha15 min
Mar 31, 11:38 AM CDTSpecial Weather StatementMKXRock37 min
Mar 31, 11:50 AM CDTSpecial Weather StatementMKXWalworth55 min
Mar 31, 11:52 AM CDTSpecial Weather StatementMKXFond du Lac, Green Lake68 min
Mar 31, 12:02 PM CDTSevere Thunderstorm WarningMKXColumbia, Dodge, Fond du Lac, Green Lake21 min
Mar 31, 12:33 PM CDTSpecial Weather StatementMKXWaukesha42 min
Mar 31, 12:39 PM CDTSpecial Weather StatementMKXDane, Green, Jefferson, Lafayette66 min
Mar 31, 1:19 PM CDTSpecial Weather StatementMKXJefferson, Walworth, Waukesha56 min
Mar 31, 2:40 PM CDTSpecial Weather StatementMKXRock35 min
Mar 31, 2:59 PM CDTSpecial Weather StatementMKXWalworth31 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.