Tornado Warning 55, NWS Milwaukee, WI

116 
WWUS53 KMKX 060241
SVSMKX

Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
941 PM CDT Fri Jun 5 2026

WIC021-077-111-060300-
/O.CON.KMKX.TO.W.0055.000000T0000Z-260606T0300Z/
Columbia WI-Marquette WI-Sauk WI-
941 PM CDT Fri Jun 5 2026

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT FOR
NORTHWESTERN COLUMBIA...SOUTHWESTERN MARQUETTE AND NORTHEASTERN SAUK
COUNTIES...

At 941 PM CDT, a severe thunderstorm capable of producing a tornado
was located near West Baraboo, or near Baraboo, moving southeast at
40 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This dangerous storm will be near...
  Baraboo and West Baraboo around 945 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Briggsville and Devils Lake St Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4364 8960 4370 8960 4365 8941 4342 8971
      4352 8996 4364 8986
TIME...MOT...LOC 0241Z 300DEG 33KT 4352 8980 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

SHEPPARD

Area Forecast Discussion
National Weather Service Milwaukee/Sullivan WI
657 PM CDT Fri Jun 5 2026

.KEY MESSAGES...

- Increasing humidity and thunderstorm chances tonight with a 1
  out of 5 (Marginal) risk for severe storms. Hail, gusty
  winds, and lightning will be the main hazards.

- A very humid airmass will return Monday and Monday night ahead
  of approaching low pressure with widespread showers and
  scattered thunderstorms forecast.

- Hot and humid conditions expected mid to end of next week with
  some potential for Heat Advisory conditions late next week.

&&

.UPDATE...
Issued 658 PM CDT Fri Jun 5 2026

Increasing MUCAPE (~1500 J/kg) over southern Wisconsin this
evening will allow for maintenance of a broken line of
thunderstorms currently sinking southward through central
Wisconsin. Expecting the primary hazards with these storms to be
hail and gusty winds. An isolated cell may become strong enough
to produce hail up to 1 inch in diameter, primarily in
southwestern Wisconsin. Storms will continue southward through
early Saturday morning.

MH

&&

.SHORT TERM...
Issued 157 PM CDT Fri Jun 5 2026

This afternoon through Monday night:

Heavy rainfall has fallen today over sw WI where a Flood
Advisory is in effect for Lafayette County. A west to east swath
of 3-5 inches of rain has fallen. There is some road flooding
in the Cuba City area. Otherwise 1-2 inches has fallen south of
I-94. This efficient rainfall is a result of moist adiabatic
lapse rates within a high PWAT atmosphere of 1.7 inches. The showers
are finally decreasing over sw WI, but will continue to increase
over far se WI into the middle afternoon as a shortwave trough
slowly moves from ne IL to over Lake MI. Brief heavy rainfall
rates are expected.

For this evening into the overnight, another shortwave trough
currently over se MN and north central IA will move to central
WI for early evening, while a stronger shortwave trough over
ern ND moves into ne WI after midnight. At the sfc, a broad area
of low pressure will move ewd from MN across the nrn half of WI
and the Lake Superior region this evening with just a weak wind
shift to wly over srn WI. MUCAPE of 1000-1500 J/KG will be in
place tnt with one or two clusters of thunderstorms moving
across the nrn half of WI. However, the srn periphery of those
storms could drift into central WI and/or isolated to scattered
storm development is expected over much of srn WI as well. The
CAPE values and mdt effective shear does yield a Marginal Risk
of severe storms with large hail and damaging winds the main
concern. The chances for showers and storms will then greatly
diminish around or just after sunrise with 500 mb height rises
expected for the remainder of the day, while sfc ridging builds
from Ontario south across Lake MI into Sat nt.

The high will begin to already move ewd on Sunday as a broad
upper trough over the central and srn Great Plains slowly lifts
toward the Upper MS River Valley or srn Great Lakes for Mon-Mon
nt. Abundant moisture with PWATs approaching 2 inches will
accompany the upper trough. Widespread showers and scattered
storms are currently forecast for Mon-Mon nt, but could start as
early as late Sun afternoon or night over sw WI. If the upper
trough and moisture plume can directly lift into srn WI, concerns
for flooding will increase.

Gehring

&&

.LONG TERM...
Issued 157 PM CDT Fri Jun 5 2026

Tuesday through Friday:

Latest model guidance is showing that southern Wisconsin will
remain on the northwest side of upper ridging Tuesday through the
end of next week. This is expected to result in a persistent
stretch of warm and humid conditions through this period.
Precipitable water values are forecast to be 1.5" to 2.0" per 12Z
deterministic models, with dewpoints anywhere from 65 to 75.
Above normal high temps in the mid to upper 80s may crack the low
90s at times, with 925 mb temps upwards of 25C expected. Overall
though, ECMWF and GFS ensemble probabilities of hitting 90
degrees are only in the 10-25 percent range, so confidence isn't
high yet in getting quite that warm.

Given the warm and humid conditions mid to late week next week,
plenty of instability is expected each day. Since southern
Wisconsin will be on the northwest side of the upper ridge, the
door will be open for a couple shortwaves to move through during
this period, bringing a chance for showers and storms at times.
Additionally, the forecast temps and dewpoints suggest the
potential for the heat index to crack 100 degrees at times. The
timing of the higher precip chances and hottest temps are still in
question though, given uncertainty in the timing of the individual
shortwaves, as this forecast period is still a few days out.

DDV

&&

.AVIATION...
Issued 658 PM CDT Fri Jun 5 2026

Ceilings between 2500 and 3500 ft this evening within some
isolated showers. A broken line of thunderstorms will progress
southward late tonight into early Saturday morning, bringing
ceilings around 2500 ft and the threat of lightning. An isolated
strong storm may produce damaging wind and hail generally less
than 1 inch in diameter. Storm chances diminish along and south
of the I-94 corridor, but potential remains for storms to
maintain intensity and progress all the way through the WI/IL
border.

Southwesterly winds through much of tonight will shift to become
northwesterly as a cold front works its way through Saturday
morning. Winds will become light and variable Saturday afternoon
into Saturday evening, with an easterly lake breeze expected
along Lake Michigan terminals.

MH

&&

.MARINE...
Issued 157 PM CDT Fri Jun 5 2026

Broad low pressure of 29.6 inches will slowly move across the
northern Great Lakes this afternoon and evening. Its weak and
decaying cold front will then follow for Saturday afternoon. Thus
modest south winds today will shift west to southwest tonight and
Saturday morning, followed by light and variable winds Saturday
afternoon. During this time, areas of dense fog will be possible
due to humid air flowing over the cold lake. Light northeast
winds will then prevail Saturday night and Sunday as high
pressure around 30.0 inches builds across the region. Looking
ahead, the start of next week will bring an additional low
pressure system to develop over the Great Plains and approach
Lake Michigan with modest southeasterly winds expected.

Gehring

&&

.MKX WATCHES/WARNINGS/ADVISORIES...
WI...None.
LM...Dense Fog Advisory...LMZ643-LMZ644 until 10 PM Friday.

     Dense Fog Advisory...LMZ261-LMZ362-LMZ364-LMZ366-LMZ563-LMZ565-
     LMZ567-LMZ868 until 1 PM Saturday.

&&

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Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
644 PM CDT Fri Jun 5 2026

WIZ046-047-051-052-056>060-062>072-062345-
Marquette-Green Lake-Fond du Lac-Sheboygan-Sauk-Columbia-Dodge-
Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee-
Lafayette-Green-Rock-Walworth-Racine-Kenosha-
644 PM CDT Fri Jun 5 2026

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

.DAY ONE...Tonight

Chance for thunderstorms tonight. Some storms could have small
hail and gusty winds to 50 mph.

.DAYS TWO THROUGH SEVEN...Saturday through Friday

Chance of on and off thunderstorms Sunday afternoon through
Tuesday.

Hot and humid late next week, with potential for Heat Advisory
conditions.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated, but rainfall reports are
appreciated.

LMZ643>646-062345-
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-
644 PM CDT Fri Jun 5 2026

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

.DAY ONE...Tonight

Areas of dense fog at times. A Dense Fog Advisory is in effect
north of North Point Lighthouse until 10 PM CDT.

.DAYS TWO THROUGH SEVEN...Saturday through Friday

Chance of on and off thunderstorms Sunday afternoon through
Tuesday.

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-062345-
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-
644 PM CDT Fri Jun 5 2026

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

.DAY ONE...Tonight

A Marine Dense Fog Advisory is in effect for the northern half of
the lake for visibilities 1 NM or less.

Isolated thunderstorms expected late tonight.

.DAYS TWO THROUGH SEVEN...Saturday through Friday

Areas of dense fog remain possible through Saturday midday, and a
Marine Dense Fog Advisory is in effect.

Chance of thunderstorms Sunday afternoon through Tuesday.

www.weather.gov/mkx

Special Weather Statement
National Weather Service Milwaukee/Sullivan WI
845 PM CDT Fri Jun 5 2026

WIZ047-051-060245-
Green Lake WI-Fond Du Lac WI-
845 PM CDT Fri Jun 5 2026

...STRONG THUNDERSTORMS WILL IMPACT FOND DU LAC AND GREEN LAKE
COUNTIES THROUGH 945 PM CDT...

At 844 PM CDT, Doppler radar was tracking a cluster of strong
thunderstorms along a line extending from Kaukauna to 6 miles
northwest of Markesan. Movement was southeast at 35 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Fond Du Lac, Waupun, Ripon, Berlin, North Fond Du Lac, Markesan,
Princeton, Oakfield, Rosendale, Green Lake, Brandon, Southern Lake
Winnebago, Taycheedah, Lamartine, Byron, Eldorado, Alto, Manchester,
Eden, and Mount Calvary.

This includes the following highways...
 U.S. Highway 151 between mile markers 147 and 163, and between mile
markers 165 and 169.
 Interstate 41 between mile markers 89 and 109.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4398 8889 4390 8888 4389 8841 4394 8840
      4394 8817 4372 8816 4363 8841 4363 8912
      4364 8913 4364 8925 4376 8924 4377 8917
      4381 8917 4380 8919 4382 8920 4387 8920
      4388 8917 4398 8917
TIME...MOT...LOC 0144Z 308DEG 31KT 4429 8826 4375 8911

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

SHEPPARD