Severe Thunderstorm Warning
Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
1229 AM CDT Fri Sep 4 2026
WIC079-089-131-133-040600-
/O.CON.KMKX.SV.W.0266.000000T0000Z-260904T0600Z/
Ozaukee WI-Milwaukee WI-Waukesha WI-Washington WI-
1229 AM CDT Fri Sep 4 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 AM CDT
FOR SOUTHWESTERN OZAUKEE...NORTHWESTERN MILWAUKEE...NORTHEASTERN
WAUKESHA AND SOUTHERN WASHINGTON COUNTIES...
At 1229 AM CDT, a severe thunderstorm was located over Jackson,
moving southeast at 25 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Northern Milwaukee, Waukesha, Wauwatosa, Menomonee Falls, Mequon,
Pewaukee, Brown Deer, Grafton, Cedarburg, Sussex, Jackson, Fox Point,
Slinger, Bayside, Thiensville, Germantown, Glendale, Lisbon, Merton,
and Butler.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4299 8828 4314 8832 4331 8835 4338 8811
4327 8790 4324 8791 4321 8790 4320 8790
4318 8789
TIME...MOT...LOC 0529Z 302DEG 20KT 4330 8816
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
KUROSKI
Severe Thunderstorm Warning
WIC097-135-040615-
/O.NEW.KGRB.SV.W.0142.260904T0522Z-260904T0615Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Green Bay WI
1222 AM CDT Fri Sep 4 2026
The National Weather Service in Green Bay has issued a
* Severe Thunderstorm Warning for...
Northern Portage County in central Wisconsin...
Waupaca County in northeastern Wisconsin...
* Until 115 AM CDT.
* At 1222 AM CDT, a severe thunderstorm was located 10 miles
northwest of Amherst, or 9 miles east of Stevens Point, moving east
at 35 mph.
HAZARD...Quarter size hail.
SOURCE...Radar indicated.
IMPACT...Damage to vehicles is expected.
* This severe thunderstorm will be near...
Stevens Point around 1225 AM CDT.
Clintonville around 110 AM CDT.
Other locations impacted by the severe thunderstorm include Polonia,
Ellis, North Star, Custer, Nelsonville, Jordan, Stockton, Amherst
Junction, Fancher and Rosholt.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Seek shelter inside a well-built structure and stay away from
windows. This storm is capable of producing large hail.
&&
LAT...LON 4443 8971 4468 8970 4469 8950 4468 8935
4468 8928 4467 8873 4459 8873 4459 8874
4428 8874
TIME...MOT...LOC 0522Z 260DEG 31KT 4457 8939
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH
$$
Bersch
Severe Weather Statement
Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
1229 AM CDT Fri Sep 4 2026
WIC079-089-131-133-040600-
/O.CON.KMKX.SV.W.0266.000000T0000Z-260904T0600Z/
Ozaukee WI-Milwaukee WI-Waukesha WI-Washington WI-
1229 AM CDT Fri Sep 4 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 AM CDT
FOR SOUTHWESTERN OZAUKEE...NORTHWESTERN MILWAUKEE...NORTHEASTERN
WAUKESHA AND SOUTHERN WASHINGTON COUNTIES...
At 1229 AM CDT, a severe thunderstorm was located over Jackson,
moving southeast at 25 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Northern Milwaukee, Waukesha, Wauwatosa, Menomonee Falls, Mequon,
Pewaukee, Brown Deer, Grafton, Cedarburg, Sussex, Jackson, Fox Point,
Slinger, Bayside, Thiensville, Germantown, Glendale, Lisbon, Merton,
and Butler.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4299 8828 4314 8832 4331 8835 4338 8811
4327 8790 4324 8791 4321 8790 4320 8790
4318 8789
TIME...MOT...LOC 0529Z 302DEG 20KT 4330 8816
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
KUROSKI
Extreme Heat Warning
URGENT - WEATHER MESSAGE
National Weather Service Quad Cities IA IL
833 PM CDT Thu Sep 3 2026
IAZ063>065-067-068-076>078-087>089-098-099-ILZ015-024>026-034-035-
MOZ009-010-040945-
/O.CON.KDVN.XH.W.0003.000000T0000Z-260906T0000Z/
Iowa-Johnson-Cedar-Muscatine-Scott-Keokuk-Washington-Louisa-
Jefferson-Henry IA-Des Moines-Van Buren-Lee-Rock Island-Mercer-
Henderson-Warren-Hancock-McDonough-Scotland-Clark-
Including the cities of Wapello, Fairfield, Washington, Muscatine,
Bettendorf, Carthage, Kahoka, Oquawka, Fort Madison, Moline,
Keosauqua, Rock Island, Memphis, Iowa City, Monmouth, Aledo, Macomb,
Marengo, Tipton, Mount Pleasant, Davenport, Sigourney, and Burlington
833 PM CDT Thu Sep 3 2026
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 7 PM CDT SATURDAY...
* WHAT...Dangerously hot conditions with heat index values of 100 to
110.
* WHERE...Portions of northwest and west central Illinois, east
central and southeast Iowa, and northeast Missouri.
* WHEN...Until 7 PM CDT Saturday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Do not leave young children and pets in unattended vehicles. Car
interiors will reach lethal temperatures in a matter of minutes.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
&&
$$
Heat Advisory
URGENT - WEATHER MESSAGE
National Weather Service Quad Cities IA IL
833 PM CDT Thu Sep 3 2026
IAZ040>042-051>054-066-ILZ001-002-007-009-040945-
/O.CON.KDVN.HT.Y.0009.000000T0000Z-260905T0000Z/
Buchanan-Delaware-Dubuque-Benton-Linn-Jones-Jackson-Clinton-
JoDaviess-Stephenson-Carroll-Whiteside-
Including the cities of Independence, Sterling, Freeport, Vinton,
Mount Carroll, Manchester, Cedar Rapids, Galena, Maquoketa, Clinton,
Dubuque, and Anamosa
833 PM CDT Thu Sep 3 2026
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT FRIDAY...
* WHAT...Heat index values of 100 to 105.
* WHERE...Portions of northwest Illinois and east central and
northeast Iowa.
* WHEN...Until 7 PM CDT Friday.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
* ADDITIONAL DETAILS...Thunderstorms and storm outflow may interrupt
the heat at times.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.
&&
$$
DC
Flood Advisory
Flood Advisory
National Weather Service Milwaukee/Sullivan WI
1228 AM CDT Fri Sep 4 2026
WIC079-089-131-133-040730-
/O.NEW.KMKX.FA.Y.0036.260904T0528Z-260904T0730Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Milwaukee WI-Ozaukee WI-Washington WI-Waukesha WI-
1228 AM CDT Fri Sep 4 2026
...FLOOD ADVISORY IN EFFECT UNTIL 230 AM CDT EARLY THIS MORNING...
* WHAT...Urban area and small stream flooding caused by excessive
rainfall is expected.
* WHERE...Northern Milwaukee County in southeastern Wisconsin...
Southwestern Ozaukee County in southeastern Wisconsin...
Southern Washington County in southeastern Wisconsin...
Northeastern Waukesha County in southeastern Wisconsin...
* WHEN...Until 230 AM CDT.
* IMPACTS...Minor flooding in low-lying and poor drainage areas.
Dangerous flows over low-water crossings.
* ADDITIONAL DETAILS...
- At 1228 AM CDT, Doppler radar indicated heavy rain due to
thunderstorms. This will cause urban and small stream flooding.
Between 1 and 1.5 inches of rain have fallen.
- Additional rainfall amounts of 1 to 1.5 inches are expected over
the area. This additional rain will result in minor flooding.
- Some locations that will experience flooding include...
Northern Milwaukee, Wauwatosa, Brookfield, Menomonee Falls,
Mequon, Whitefish Bay, Brown Deer, Sussex, Jackson, Fox Point,
Thiensville, Germantown, Glendale, Butler, River Hills, Lannon
and Shorewood.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 4327 8836 4335 8807 4329 8802 4314 8790
4312 8790 4309 8787 4308 8787 4307 8786
4307 8787 4306 8788 4306 8814
$$
Wagner
Flood Advisory
National Weather Service Milwaukee/Sullivan WI
1130 PM CDT Thu Sep 3 2026
WIC027-039-131-040630-
/O.NEW.KMKX.FA.Y.0035.260904T0430Z-260904T0630Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Dodge WI-Fond du Lac WI-Washington WI-
1130 PM CDT Thu Sep 3 2026
...FLOOD ADVISORY IN EFFECT UNTIL 130 AM CDT FRIDAY...
* WHAT...Urban area and small stream flooding caused by excessive
rainfall is expected.
* WHERE...Southeastern Fond du Lac County in east central
Wisconsin...
Eastern Dodge County in southeastern Wisconsin...
Central Washington County in southeastern Wisconsin...
* WHEN...Until 130 AM CDT.
* IMPACTS...Minor flooding in low-lying and poor drainage areas.
Dangerous flows over low-water crossings.
* ADDITIONAL DETAILS...
- At 1130 PM CDT, Doppler radar indicated heavy rain due to
thunderstorms. This will cause urban and small stream flooding.
Between 1 and 2 inches of rain have fallen.
- Additional rainfall amounts of 1 to 2 inches are expected over
the area. This additional rain will result in minor flooding.
- Some locations that will experience flooding include...
West Bend, Hartford, Jackson, Mayville, Slinger, Kewaskum,
Horicon, Lomira, Campbellsport, Theresa, Iron Ridge, Addison,
Rubicon, Ashford, Woodland, Brownsville, Neosho, Wayne and
Kekoskee.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 4363 8862 4363 8821 4335 8807 4322 8853
4348 8867 4349 8867
$$
Wagner
Special Weather Statement
Special Weather Statement
National Weather Service Milwaukee/Sullivan WI
1233 AM CDT Fri Sep 4 2026
WIZ051-040615-
Fond Du Lac WI-
1233 AM CDT Fri Sep 4 2026
...A STRONG THUNDERSTORM WILL IMPACT NORTHEASTERN FOND DU LAC COUNTY
THROUGH 115 AM CDT...
At 1232 AM CDT, Doppler radar was tracking a strong thunderstorm near
Southern Lake Winnebago, or 7 miles north of North Fond Du Lac,
moving southeast at 20 mph.
HAZARD...Wind gusts up to 50 mph and penny size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor hail damage to vegetation is
possible.
Locations impacted include...
Fond Du Lac, North Fond Du Lac, Southern Lake Winnebago, Taycheedah,
Mount Calvary, Van Dyne, Calvary, Peebles, Marytown, Johnsburg, Pipe,
and Town of Forest.
This includes the following highways...
U.S. Highway 151 between mile markers 166 and 169.
Interstate 41 between mile markers 108 and 109.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4388 8816 4369 8832 4389 8861 4390 8860
4389 8841 4394 8840 4394 8816
TIME...MOT...LOC 0532Z 294DEG 15KT 4392 8847
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH
$$
KUROSKI
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
1229 AM CDT Fri Sep 4 2026
LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-050530-
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-
1229 AM CDT Fri Sep 4 2026
This Hazardous Weather Outlook is for the open waters of Lake Michigan.
.DAY ONE...Tonight
Chances for thunderstorms at times tonight, 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.
$$
www.weather.gov/mkx
Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
1229 AM CDT Fri Sep 4 2026
LMZ643>646-050530-
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
1229 AM CDT Fri Sep 4 2026
This Hazardous Weather Outlook is for the nearshore waters from
Sheboygan Wisconsin to Winthrop Harbor Illinois.
.DAY ONE...Tonight
Chance for thunderstorms, especially late tonight. There is a
potential for strong to severe storms capable of producing
damaging winds. Hail and an isolated waterspout are possible as
well.
Some marine fog may also develop overnight.
.DAYS TWO THROUGH SEVEN...Friday through Thursday
Isolated to scattered storms Friday afternoon, continuing through
the overnight hours. A few storms may become severe.
A few isolated storms may linger Saturday morning.
Next storm chances develop overnight Monday into Tuesday.
$$
Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
1229 AM CDT Fri Sep 4 2026
WIZ046-047-051-052-056>060-062>072-050530-
Marquette-Green Lake-Fond du Lac-Sheboygan-Sauk-Columbia-Dodge-
Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee-
Lafayette-Green-Rock-Walworth-Racine-Kenosha-
1229 AM CDT Fri Sep 4 2026
This Hazardous Weather Outlook is for portions of east central
Wisconsin, south central Wisconsin and southeast Wisconsin.
.DAY ONE...Tonight
Chances for thunderstorms continue through daybreak. There the
potential for strong to severe storms capable of producing
damaging winds and hail.
Locally heavy rainfall with ponding and minor flooding is also
possible with any thunderstorms that move over the same area,
particularly overnight and around daybreak
.DAYS TWO THROUGH SEVEN...Friday through Thursday
A line of storms Friday morning may produce continued minor
flooding across southern Wisconsin as well as more chances for
gusty winds. Some of the line may be strong to severe.
Afternoon heat indices in the 90s possible in far southern
Wisconsin and near 100 along the Wisconsin and Illinois border
Friday.
Isolated to scattered storms Friday evening, continuing through
the overnight hours. A few may be strong.
Next storm chances develop Tuesday, with increasing heat and
humidity into Wednesday.
.SPOTTER INFORMATION STATEMENT...
Spotter activation may be needed tonight.
$$
Hazardous Weather Outlook...UPDATED
National Weather Service Chicago/Romeoville IL
850 PM CDT Thu Sep 3 2026
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-050200-
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
850 PM CDT Thu Sep 3 2026 /950 PM EDT Thu Sep 3 2026/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph.
DISCUSSION...
Scattered thunderstorms may spread into far northern and
northeast Illinois and parts of northwest Indiana toward daybreak
Friday. These storms could produce locally strong wind gusts.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday.
Friday...
Limited Flooding Risk.
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Elevated Excessive Heat Risk.
Saturday...
Limited Thunderstorm Risk
Limited Excessive Heat Risk.
Tuesday and Wednesday...
Limited Thunderstorm Risk.
DISCUSSION...
Dangerous heat will continue on Friday, particularly south of I-
80.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the east-southeast around 30 mph.
$$
Hazardous Weather Outlook...UPDATED
National Weather Service Chicago/Romeoville IL
850 PM CDT Thu Sep 3 2026
LMZ740>745-050200-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
850 PM CDT Thu Sep 3 2026
This Hazardous Weather Outlook is for portions of the Illinois
nearshore waters of Lake Michigan and the Indiana nearshore
waters of Lake Michigan.
.DAY ONE...Tonight.
Weather hazards expected...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Thunderstorm Wind Gust Risk...up
to 50 knots toward daybreak Friday.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday.
Friday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Saturday...
Limited Thunderstorm Risk.
Tuesday and Wednesday...
Limited Thunderstorm Risk.
$$
Ratzer
Visit us at www.weather.gov/chicago
Hazardous Weather Outlook
National Weather Service Quad Cities IA IL
233 PM CDT Thu Sep 3 2026
IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-041945-
Buchanan-Delaware-Dubuque-Benton-Linn-Jones-Jackson-Iowa-Johnson-
Cedar-Clinton-Muscatine-Scott-Keokuk-Washington-Louisa-Jefferson-
Henry IA-Des Moines-Van Buren-Lee-Jo Daviess-Stephenson-Carroll-
Whiteside-Rock Island-Henry IL-Bureau-Putnam-Mercer-Henderson-
Warren-Hancock-McDonough-Scotland-Clark-
233 PM CDT Thu Sep 3 2026
This Hazardous Weather Outlook is for portions of north central
Illinois...northwest Illinois...west central Illinois...east
central Iowa...northeast Iowa...southeast Iowa and northeast
Missouri.
.DAY ONE...THIS AFTERNOON AND TONIGHT
Impactful heat will continue across the area this afternoon and
tonight. Peak heat indices of 100 to 110 are expected. Heat
headlines continue for the entire area.
Isolated strong to severe storms are possible late tonight into
Friday morning, mainly north of Highway 30. The primary threat is
damaging winds with hail a secondary risk.
.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY
The impactful heat and humidity will continue Friday and into the
holiday weekend. Peak heat indices of 95 to 105 are expected.
There is a daily risk of isolated thunderstorms with areas north
of Interstate 80 being favored. A few of these storms may be
strong to severe. The primary risk is damaging winds with hail a
secondary risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is possible late tonight for areas north of
Highway 30.
$$
Hazardous Weather Outlook
National Weather Service Green Bay WI
118 PM CDT Thu Sep 3 2026
LMZ521-522-541>543-041830-
The Bay of Green Bay south of a line from Cedar River MI to Rock
Island Passage-Lake Michigan from Washington Island to Sheboygan-
118 PM CDT Thu Sep 3 2026
This Hazardous Weather Outlook is for portions of northwest Lake
Michigan and the waters of Green Bay.
.DAY ONE...This Afternoon and Tonight
A round of thunderstorms is possible tonight that may pose a
significant risk to mariners with strong wind gusts the main
hazard.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday
Periodic storm chances will continue into early next week. Any
storm would pose a hazard to mariners.
$$
GK
Hazardous Weather Outlook
National Weather Service Green Bay WI
118 PM CDT Thu Sep 3 2026
WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-041830-
Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln-
Langlade-Menominee-Northern Oconto County-Door-Marathon-Shawano-
Wood-Portage-Waupaca-Outagamie-Brown-Kewaunee-Waushara-Winnebago-
Calumet-Manitowoc-Southern Marinette County-
Southern Oconto County-
118 PM CDT Thu Sep 3 2026
This Hazardous Weather Outlook is for north-central and northeast
Wisconsin.
.DAY ONE...This Afternoon and Tonight
A round of strong to severe storms is expected to move across northern
and central WI tonight, between 10PM and 6AM. Main hazard will be
damaging wind gusts along with heavy downpour.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday
Periodic storm chances continue into early next week, though
severe weather predictability is low.
.SPOTTER INFORMATION STATEMENT...
Spotters are requested to report peak wind gusts to the National
Weather Service in Green Bay.
$$
Hazardous Weather Outlook
National Weather Service La Crosse WI
222 AM CDT Thu Sep 3 2026
IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ017-029-
032>034-041>044-053>055-061-041000-
Mitchell-Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette-
Clayton-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston-
Taylor-Clark-Buffalo-Trempealeau-Jackson-La Crosse-Monroe-Juneau-
Adams-Vernon-Crawford-Richland-Grant-
222 AM CDT Thu Sep 3 2026
This Hazardous Weather Outlook is for portions of southeast
Minnesota...northeast Iowa and southwest into central Wisconsin.
.DAY ONE...Today and Tonight
Strong storms possible this morning through tonight.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday
Periodic storm chances Friday through Wednesday.
.SPOTTER INFORMATION STATEMENT...
No action needed.
.EMERGENCY MANAGEMENT COORDINATION...
No webinar is scheduled.
$$
