Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 182, NWS Milwaukee, WI
NWS Milwaukee, WI issued this severe thunderstorm warning at Jul 1, 2026, 12:14 PM CDT for Fond du Lac County, Wisconsin. It was in force for 46 min. 6 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 1, 2026, 12:14 PM CDT (17:14 UTC)
- Expired
- Jul 1, 2026, 1:00 PM CDT
- In force
- 46 min
- Issued by
- NWS Milwaukee, WI
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Fond du Lac County, WI
The radar
The Green Bay radar (KGRB), 86 km from the middle of the area, began a volume at 17:14 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 was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 1, 12:25 PM CDT | HAIL 1.75 | 3 Se Fond Du Lac, WI | Size est from social media pics sent to local media shared by County EM. Time est from radar. |
| Jul 1, 12:25 PM CDT | HAIL 2 | 3 Nw Eden, WI | Size est from social media pics sent to local media shared by County EM. Time est from radar. |
| Jul 1, 12:25 PM CDT | HAIL 2.5 | 4 Se Fond Du Lac, WI | Size est from social media pics sent to local media shared by County EM. Time est from radar. |
| Jul 1, 12:25 PM CDT | HAIL 3 | 3 Se Fond Du Lac, WI | Picture from social media that included a ruler. Time est from radar. |
| Jul 1, 12:30 PM CDT | HAIL 1.5 | 4 Nnw Eden, WI | 4 miles ESE of Fond du Lac. Time est from radar. |
| Jul 1, 12:38 PM CDT | HAIL 1.5 | 3 E Fond Du Lac, WI | Report from mPING: Ping Pong Ball (1.50 in.). |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
Did it verify
Verified. The Iowa Environmental Mesonet's Cow matched 6 storm reports to this severe thunderstorm warning; the first came 11 minutes after it went out.
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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 1, 11:05 AM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 5.2 hours before the alert went out and 399 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.
- Mixed-layer CAPE
- 1552 J/kg
- Mixed-layer CIN
- -200 J/kg
- Mixed-layer LCL
- 1038 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 66 m²/s²
- 0-3 km storm-relative helicity
- 139 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.2
The text
As transmitted.
231
WUUS53 KMKX 011714
SVRMKX
WIC039-011800-
/O.NEW.KMKX.SV.W.0182.260701T1714Z-260701T1800Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Milwaukee/Sullivan WI
1214 PM CDT Wed Jul 1 2026
The National Weather Service in Milwaukee/Sullivan has issued a
* Severe Thunderstorm Warning for...
Eastern Fond du Lac County in east central Wisconsin...
* Until 100 PM CDT.
* At 1214 PM CDT, a severe thunderstorm was located near Oakfield, or
near North Fond Du Lac, moving east at 40 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...
Fond Du Lac, Southern Lake Winnebago, Taycheedah, Eden, Mount
Calvary, St. Cloud, Calvary, Peebles, Town of Forest, Johnsburg,
Dundee, and Waucousta.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4362 8816 4363 8839 4389 8844 4390 8816
TIME...MOT...LOC 1714Z 263DEG 34KT 4375 8857
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
CMILLER5 follow-up statements
508
WWUS53 KMKX 011717 RRA
SVSMKX
Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
1217 PM CDT Wed Jul 1 2026
WIC039-011800-
/O.CON.KMKX.SV.W.0182.000000T0000Z-260701T1800Z/
Fond du Lac WI-
1217 PM CDT Wed Jul 1 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 PM CDT
FOR EASTERN FOND DU LAC COUNTY...
At 1217 PM CDT, a severe thunderstorm was located near North Fond Du
Lac, moving east at 40 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Fond Du Lac, Southern Lake Winnebago, Taycheedah, Eden, Mount
Calvary, St. Cloud, Calvary, Peebles, Town of Forest, Johnsburg,
Dundee, and Waucousta.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4362 8816 4363 8839 4389 8844 4390 8816
TIME...MOT...LOC 1717Z 263DEG 34KT 4375 8853
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
CMILLER936
WWUS53 KMKX 011730
SVSMKX
Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
1230 PM CDT Wed Jul 1 2026
WIC039-011800-
/O.CON.KMKX.SV.W.0182.000000T0000Z-260701T1800Z/
Fond du Lac WI-
1230 PM CDT Wed Jul 1 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 PM CDT
FOR EASTERN FOND DU LAC COUNTY...
At 1229 PM CDT, a severe thunderstorm was located near Fond Du Lac,
moving east at 40 mph.
HAZARD...Golf ball size hail and 60 mph wind gusts.
SOURCE...Trained weather spotters reported golf ball sized hail on
the south side of Fond du Lac.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect wind
damage to roofs, siding, and trees.
Locations impacted include...
Fond Du Lac, Southern Lake Winnebago, Taycheedah, Eden, Mount
Calvary, St. Cloud, Calvary, Peebles, Town of Forest, Johnsburg,
Dundee, and Waucousta.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4362 8816 4363 8839 4389 8844 4390 8816
TIME...MOT...LOC 1729Z 263DEG 34KT 4376 8837
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...OBSERVED
MAX HAIL SIZE...1.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
CMILLER382
WWUS53 KMKX 011738
SVSMKX
Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
1238 PM CDT Wed Jul 1 2026
WIC039-011800-
/O.CON.KMKX.SV.W.0182.000000T0000Z-260701T1800Z/
Fond du Lac WI-
1238 PM CDT Wed Jul 1 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 PM CDT
FOR EASTERN FOND DU LAC COUNTY...
At 1236 PM CDT, a severe thunderstorm was located 7 miles east of
Fond Du Lac, moving east at 40 mph.
THIS IS A DESTRUCTIVE STORM FOR Eden, Mount Calvary, and the eastern
half of Fond du Lac County.
HAZARD...Baseball size hail and 60 mph wind gusts.
SOURCE...Trained weather spotters reported baseball size hail on the
southeast side of Fond du Lac.
IMPACT...People and animals outdoors will be severely injured.
Expect shattered windows, extensive damage to roofs,
siding, and vehicles.
Locations impacted include...
Fond Du Lac, Southern Lake Winnebago, Taycheedah, Eden, Mount
Calvary, St. Cloud, Calvary, Peebles, Town of Forest, Johnsburg,
Dundee, and Waucousta.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4362 8816 4363 8839 4389 8844 4390 8816
TIME...MOT...LOC 1736Z 263DEG 34KT 4377 8828
THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...OBSERVED
MAX HAIL SIZE...2.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
CMILLER270
WWUS53 KMKX 011746
SVSMKX
Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
1246 PM CDT Wed Jul 1 2026
WIC039-011800-
/O.CON.KMKX.SV.W.0182.000000T0000Z-260701T1800Z/
Fond du Lac WI-
1246 PM CDT Wed Jul 1 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 PM CDT
FOR EAST CENTRAL FOND DU LAC COUNTY...
At 1246 PM CDT, a severe thunderstorm was located 7 miles southwest
of Elkhart Lake, or 9 miles west of Plymouth, moving east at 40 mph.
THIS IS A DESTRUCTIVE STORM FOR Eastern Fond du Lac County.
HAZARD...Baseball size hail and 60 mph wind gusts.
SOURCE...Trained weather spotters. This storm has a history of
producing large destructive hail.
IMPACT...People and animals outdoors will be severely injured.
Expect shattered windows, extensive damage to roofs,
siding, and vehicles.
Locations impacted include...
Mount Calvary, St. Cloud, and Town of Forest.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
This storm is producing large hail. SEEK SHELTER NOW inside a sturdy
structure and stay away from windows.
&&
LAT...LON 4367 8816 4369 8830 4383 8829 4385 8816
TIME...MOT...LOC 1746Z 263DEG 34KT 4378 8815
THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...OBSERVED
MAX HAIL SIZE...2.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
CMILLER607 WWUS53 KMKX 011757 SVSMKX Severe Weather Statement National Weather Service Milwaukee/Sullivan WI 1257 PM CDT Wed Jul 1 2026 WIC039-011807- /O.EXP.KMKX.SV.W.0182.000000T0000Z-260701T1800Z/ Fond du Lac WI- 1257 PM CDT Wed Jul 1 2026 ...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL FOND DU LAC COUNTY WILL EXPIRE AT 100 PM CDT... The storm which prompted the warning has moved out of the area. Therefore, the warning will be allowed to expire. A Severe Thunderstorm Watch remains in effect until 400 PM CDT for east central Wisconsin. && LAT...LON 4367 8816 4369 8830 4383 8829 4385 8816 TIME...MOT...LOC 1757Z 263DEG 34KT 4379 8802 $$ 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 Jul 1, 11:25 AM CDT, 49 minutes earlier. Its key messages:
- An Extreme Heat Warning remains in effect for all of southern Wisconsin through early this evening. Additional heat headlines may be needed into the rest of the week, but some uncertainty remains due to clouds and rain chances.
- Scattered thunderstorms mainly north of a Lone Rock to Sheboygan line through early this afternoon. Damaging winds and large hail are the main hazards of concern.
- There are increasing chances (40 to 70 percent) for thunderstorms later this evening and tonight, with the better chances north of a Lone Rock to Sheboygan line. Some strong to severe storms with heavy rainfall may occur at times, mainly in the evening. Damaging winds and large hail are the main hazards of concern.
- There are periodic chances (40 to 60 percent) for thunderstorms Thursday into the holiday weekend. Some strong to severe storms with heavy rainfall may occur at times, though confidence remains low with the timing of each round of storms. This may impact outdoor holiday activities at times, so keep up with the forecast.
Area forecast discussion, Jul 1, 11:25 AM CDT, 49 minutes before
Area Forecast Discussion National Weather Service Milwaukee/Sullivan WI 1125 AM CDT Wed Jul 1 2026 .KEY MESSAGES... - An Extreme Heat Warning remains in effect for all of southern Wisconsin through early this evening. Additional heat headlines may be needed into the rest of the week, but some uncertainty remains due to clouds and rain chances. - Scattered thunderstorms mainly north of a Lone Rock to Sheboygan line through early this afternoon. Damaging winds and large hail are the main hazards of concern. - There are increasing chances (40 to 70 percent) for thunderstorms later this evening and tonight, with the better chances north of a Lone Rock to Sheboygan line. Some strong to severe storms with heavy rainfall may occur at times, mainly in the evening. Damaging winds and large hail are the main hazards of concern. - There are periodic chances (40 to 60 percent) for thunderstorms Thursday into the holiday weekend. Some strong to severe storms with heavy rainfall may occur at times, though confidence remains low with the timing of each round of storms. This may impact outdoor holiday activities at times, so keep up with the forecast. && .UPDATE... Issued 1125 AM CDT Wed Jul 1 2026 Thunderstorms continue to ride the northwest periphery of the high pressure ridge this morning. Through early afternoon, the greatest area of concern is across central WI, from Marquette through Sheboygan counties. A severe thunderstorm watch is now in effect until 3 PM for this cluster of storms. No lack of instability, though these storms are riding the southern periphery of better effective shear. Boundaries from storms earlier this morning will pose a challenge as we expect storm mode to ride a fine line of multicell/supercell. Damaging winds and large hail are the primary concerns. That said, given MLCAPE around 2500 J/kg and and 0-3km CAPE of 75-100 J/kg, strong updrafts and boundary interactions will pose a tornado risk. This activity should exit to the east by 3 PM, and we will be watching for how the atmosphere reloads to our west/northwest for this evening into the overnight hours. CAMs continue to insist on MCSs punching through the ridge (which have not come to fruition the past few days). Broader resolution models continue to respect the ridge more. Current expectations are for convection that develops to our west/north to gradually approach/enter northwest portions of our area during the mid/late evening hours, and with potential outflow sagging south with time overnight. There will be a continued risk for severe (damaging wind/hail), but will need to watch for slow storm movement and a potential for flash flooding with PWs around two inches. Gagan && .SHORT TERM... Issued 146 AM CDT Wed Jul 1 2026 Today through Friday night: The Extreme Heat Warning will remain in effect until early this evening. An extension or a Heat Advisory issuance into later in the week may eventually be needed, depending on how many clouds and showers/storms occur. Will likely wait on how clouds and possible shower/storm trends play out overnight into later today before making further decisions on the heat headlines for the rest of the week. Heat index values in the 90s to low 100s are forecast for Thursday and Friday. There is a chance (20 to 40 percent) for showers and storms developing into this morning, before pushing northeastward by midday. The southwesterly low level jet will be the key feature to watch, as it develops more of a nose and shifts northeastward toward the area. CAMs seem to be favoring scattered showers and storms developing in southeast Minnesota into southwest Wisconsin by 09Z or so, shifting northeast into the morning hours. Given the setup with the southwesterly flow through a deep layer focused from Iowa into southwest and central Wisconsin, would expect any showers and storms that develop with the low level jet nose to push northeast and ride the ridge through these areas. There is a decent amount of elevated CAPE (1500 to 2500 J/kg), with weaker deep layer bulk shear around 20 knots increasing to 30 to 35 knots in the morning. Thus, any stronger storm could produce hail, gusty winds and locally heavy rainfall, given the very moist airmass in place and storms possibly moving over the same areas. There could be an isolated storm that develops this afternoon northwest of Madison, closer to the low level jet axis. It would be elevated in nature, but given the high CAPE over 3000 J/kg and 30 to 35 knots of deep layer bulk shear, could see a strong to severe storm occur. CAMs suggest clusters of thunderstorms may develop along a surface boundary in north central Iowa to north central and northwest Wisconsin by early evening, then shifts east northeast with the aid of the low level jet toward and into the northern portions of the area during the evening and overnight. There is enough mean layer CAPE and deep layer bulk shear for more strong to severe storm potential, with damaging winds and hail the main hazards. Heavy rainfall may occur as well. The low level jet should focus more into southern Wisconsin Thursday, with a surface boundary in the form of a stationary front developing as well. These features may help to focus more showers and thunderstorms at times Thursday into Thursday night, as well as into Friday. There remains a strong to severe storm risk with heavy rainfall as well for this period, as high CAPE and moderate deep layer bulk shear values persist. Details on this potential will be more clear once the convection into tonight shows its hand. Wood && .LONG TERM... Issued 146 AM CDT Wed Jul 1 2026 Saturday through Tuesday: Active conditions continue into the holiday weekend, with multiple batches of thunderstorms expected Saturday through Sunday. Subtropical ridging will gradually break down over the eastern CONUS this weekend, allowing for modestly cooler temperatures and heat indices. A slow-moving surface boundary will concurrently slide into southern Wisconsin, supporting daily chances for showers and thunderstorms both Saturday and Sunday. Overall storm chances are greatest (50 to 60 percent or more) on Saturday, when a shortwave trough is progged to move across southern Wisconsin. Most favored locations for storms on Sunday will depend on where the surface boundary sets up in the wake of Saturday's storms, with boundary location remaining a source of uncertainty at this time. Will continue to monitor trends over coming forecasts. Any weekend storms will be capable of producing cloud-to-ground lightning and heavy downpours, with a few strong to severe storms possible. Continue to monitor the forecast is planning to be outdoors. Widespread precipitation chances wane moving into the beginning of next week, as broad high pressure builds over the western Great Lakes. Saturday/Fourth of July looks to be a potentially active Independence Day, as an upper shortwave and surface boundary move across the region. Aforementioned features will be impinging upon a still unseasonably moist airmass, which will be supportive of abundant instability. While modest, initial forecast soundings suggest bulk shear values supportive of at least loosely-organized convection, so will need to monitor for some severe weather potential over coming forecasts. Storms will also be capable of producing heavy downpours given precipitable water values in the 1.60 to 1.80 inch or greater range. Regardless of severity, any convection will be capable of producing cloud-to-ground lightning, which will be hazardous to anybody attending outdoor holiday festivities. Keep up with the forecast if planning to be outside Saturday. Depending on the surface boundary's location in the wake of Saturday's storms, could see another batch of convection during the afternoon/evening hours on Sunday. Have maintained 20 to 40 percent precip probabilities from the NBM in the evening forecast update, given lingering uncertainties related to surface boundary positioning. Expect that values will continue to fluctuate with the modeled positioning of the boundary over coming forecasts, with more refined locations of favored storm development emerging during the Friday to Saturday time period. Like Saturday's thunderstorms, will need to monitor for a few severe storms with heavy downpours, in addition to lightning potential in all thunderstorms, in any Sunday activity. Quigley && .AVIATION... Issued 510 AM CDT Wed Jul 1 2026 VFR conditions expected for the majority of today, with scattered deck near 4000 ft. Isolated storms moving northeastward through central Wisconsin may produce gusty erratic winds this morning, but are expected to remain north of the MSN/MKE corridor. This evening into tonight, storms will progress southeastward through the area, with isolated severe storms possible. Winds will become gusty and southwesterly outside of storms this afternoon, diminishing and becoming westerly tonight. Severe threat ends after midnight tonight. MH && .MARINE... Issued 146 AM CDT Wed Jul 1 2026 Modest to breezy south to southwest winds will prevail into Thursday, then lighter winds should occur into Friday, as high pressure around 30.1 inches remains to the southeast of the Great Lakes, while low pressure around 29.5 inches moves slowly east across central Manitoba into James Bay. Chances for thunderstorms are forecast across the northern half of the lake through tonight. There are chances for thunderstorms across the southern two thirds of the lake Thursday into Friday evening, and across the southern half of the lake later Friday night into Sunday. Some strong to severe storms may occur at times, though confidence remains low with the timing of each round of storms. Patchy marine fog will be possible at times, primarily over the northern half of the lake, as the warm and moist airmass moves over the lake. There may also be some patchy dense fog along the Lake Michigan shoreline into this morning. Southwest winds may approach Small Craft Advisory levels today into early this evening for the nearshore waters, mainly near the shoreline. Wood && .MKX WATCHES/WARNINGS/ADVISORIES... WI...None. LM...None. && Visit us at weather.gov/milwaukee Follow us on Facebook, X, and YouTube at: www.facebook.com/NWSMilwaukee www.x.com/NWSMilwaukee www.youtube.com/NWSMilwaukee
Hazardous weather outlook, Jul 1, 1:07 AM CDT, 11 hours 7 minutes before
Hazardous Weather Outlook National Weather Service Milwaukee/Sullivan WI 107 AM CDT Wed Jul 1 2026 WIZ046-047-051-052-056>060-062>072-020615- Marquette-Green Lake-Fond du Lac-Sheboygan-Sauk-Columbia-Dodge- Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee- Lafayette-Green-Rock-Walworth-Racine-Kenosha- 107 AM CDT Wed Jul 1 2026 This Hazardous Weather Outlook is for portions of east central Wisconsin, south central Wisconsin and southeast Wisconsin. .DAY ONE...Today and Tonight An Extreme Heat Warning remains in effect until early this evening, for heat index values in the middle to upper 70s overnight, and up to around 106 degrees later today. Additional heat headlines may be needed tonight. There are chances for thunderstorms generally along and north of a Lone Rock to Sheboygan line into this morning. A stronger storm may produce hail, gusty winds and locally heavy rainfall. There is a small chance of a thunderstorm this afternoon northwest of Madison. A strong to severe storm with strong winds and hail would be possible, if it develops. There are increasing chances for thunderstorms later this afternoon and tonight, with the better chances north of a Lone Rock to Sheboygan line. Some strong to severe storms with heavy rainfall may occur at times, mainly in the evening. Damaging winds and hail are the main hazards. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday Hot and humid conditions with daily maximum heat index values in the 90s to low 100s are expected into Friday. Additional heat headlines may be needed, depending on how much cloud cover occurs. There are periodic chances for thunderstorms Thursday into the holiday weekend. Some strong to severe storms with heavy rainfall may occur at times, though confidence remains low with the timing of each round of storms. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed at times into the weekend. LMZ643>646-020615- 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- 107 AM CDT Wed Jul 1 2026 This Hazardous Weather Outlook is for the nearshore waters from Sheboygan Wisconsin to Winthrop Harbor Illinois. .DAY ONE...Today and Tonight Patchy dense fog may occur along the Lake Michigan shoreline into this morning. A few thunderstorms are possible into this morning, mainly north of Port Washington. Southwest winds will approach Small Craft Advisory levels today. There are chances for thunderstorms tonight, with the better chances north of Port Washington. Some strong to severe storms may occur at times, mainly in the evening. Damaging winds and hail are the main hazards. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday There are periodic chances for thunderstorms Thursday into the holiday weekend. Some strong to severe storms may occur at times, though confidence remains low with the timing of each round of storms. LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868- 870-872-874-876-878-020615- 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- 107 AM CDT Wed Jul 1 2026 This Hazardous Weather Outlook is for the open waters of Lake Michigan. .DAY ONE...Today and Tonight Patchy dense fog may occur over northern portions of the lake. There are mainly small chances for thunderstorms into this morning over northern portions of the lake, with chances for storms across this area tonight. Some strong to severe storms are possible, mainly in the evening. Damaging winds and hail are the main hazards. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday Areas of dense fog may occur at times into the holiday weekend, due to the very warm and humid airmass over the colder waters of Lake Michigan. There are chances for thunderstorms across the southern two thirds of the lake Thursday into Friday night, and across the southern half of the lake over the holiday weekend. Some strong to severe storms may occur at times, though confidence remains low with the timing of each round of storms. Wood www.weather.gov/mkx
In the hours before
Special weather statement, Jul 1, 8:30 AM CDT, 3 hours 44 minutes before
Special Weather Statement
National Weather Service Milwaukee/Sullivan WI
830 AM CDT Wed Jul 1 2026
WIZ051-011400-
Fond Du Lac WI-
830 AM CDT Wed Jul 1 2026
...A STRONG THUNDERSTORM WILL IMPACT CENTRAL FOND DU LAC COUNTY
THROUGH 900 AM CDT...
At 830 AM CDT, Doppler radar was tracking a strong thunderstorm over
North Fond Du Lac, moving northeast at 30 mph.
HAZARD...Wind gusts up to 40 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Fond Du Lac, North Fond Du Lac, Southern Lake Winnebago, Taycheedah,
Lamartine, Peebles, and Town of Forest.
This includes the following highways...
U.S. Highway 151 between mile markers 156 and 163, and between mile
markers 165 and 169.
Interstate 41 between mile markers 95 and 105.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4376 8824 4370 8858 4379 8864 4389 8848
4389 8841 4394 8840 4394 8839 4393 8839
TIME...MOT...LOC 1330Z 240DEG 24KT 4378 8851
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
CMILLERSpecial weather statement, Jul 1, 9:02 AM CDT, 3 hours 12 minutes before
Special Weather Statement
National Weather Service Milwaukee/Sullivan WI
902 AM CDT Wed Jul 1 2026
WIZ051-052-011430-
Sheboygan WI-Fond Du Lac WI-
902 AM CDT Wed Jul 1 2026
...A STRONG THUNDERSTORM WILL IMPACT EAST CENTRAL FOND DU LAC AND
NORTHWESTERN SHEBOYGAN COUNTIES THROUGH 930 AM CDT...
At 902 AM CDT, Doppler radar was tracking a strong thunderstorm near
St Anna, or 10 miles northwest of Plymouth, moving northeast at 30
mph.
HAZARD...Wind gusts up to 50 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...
Elkhart Lake, Mount Calvary, St. Cloud, Glenbeulah, and Town of
Forest.
This includes Interstate 43 near mile marker 135.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4389 8774 4374 8820 4382 8826 4389 8814
TIME...MOT...LOC 1402Z 240DEG 24KT 4381 8816
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH
CMILLERLocal storm report, Jul 1, 10:47 AM CDT, 1 hour 27 minutes before
Preliminary Local Storm Report
National Weather Service Milwaukee/Sullivan WI
1047 AM CDT Wed Jul 1 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0915 AM Hail Elkhart Lake 43.83N 88.02W
07/01/2026 M0.88 Inch Sheboygan WI Law Enforcement
Elkhart Lake PD reports 5 minutes of dime to
nickel sized hail.
&&
HalbachLocal storm report, Jul 1, 11:30 AM CDT, 44 minutes before
Preliminary Local Storm Report
National Weather Service Milwaukee/Sullivan WI
1130 AM CDT Wed Jul 1 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1130 AM Hail 5 SW Kingston 43.66N 89.21W
07/01/2026 M0.70 Inch Green Lake WI 911 Call Center
&&
HalbachLocal storm report, Jul 1, 12:03 PM CDT, 11 minutes before
Preliminary Local Storm Report
National Weather Service Milwaukee/Sullivan WI
1203 PM CDT Wed Jul 1 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1200 PM Hail 4 S Rosendale 43.75N 88.68W
07/01/2026 E1.00 Inch Fond du Lac WI Public
Report from mPING: Quarter (1.00 in.).
&&
HalbachLocal storm report, Jul 1, 12:14 PM CDT, 0 minutes before
Preliminary Local Storm Report
National Weather Service Milwaukee/Sullivan WI
1214 PM CDT Wed Jul 1 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1210 PM Hail 4 S Rosendale 43.75N 88.68W
07/01/2026 E1.25 Inch Fond du Lac WI Public
Report from mPING: Half Dollar (1.25 in.).
&&
HalbachThe office that day
Everything else NWS Milwaukee, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 1, 5:18 AM CDT | Severe Thunderstorm Warning | MKX | Sauk | 42 min |
| Jul 1, 6:04 AM CDT | Severe Thunderstorm Warning | MKX | Marquette | 56 min |
| Jul 1, 6:36 AM CDT | Special Weather Statement | MKX | Marquette | 24 min |
| Jul 1, 6:45 AM CDT | Severe Thunderstorm Warning | MKX | Green Lake, Marquette | 45 min |
| Jul 1, 7:20 AM CDT | Severe Thunderstorm Warning | MKX | Fond du Lac, Green Lake | 28 min |
| Jul 1, 8:03 AM CDT | Special Weather Statement | MKX | Fond du Lac | 27 min |
| Jul 1, 8:04 AM CDT | Special Weather Statement | MKX | Green Lake | 26 min |
| Jul 1, 8:30 AM CDT | Special Weather Statement | MKX | Fond du Lac | 30 min |
| Jul 1, 9:02 AM CDT | Special Weather Statement | MKX | Sheboygan | 28 min |
| Jul 1, 9:07 AM CDT | Severe Thunderstorm Warning | MKX | Sheboygan | 38 min |
| Jul 1, 10:04 AM CDT | Severe Thunderstorm Warning | MKX | Sauk | 41 min |
| Jul 1, 10:41 AM CDT | Severe Thunderstorm Warning | MKX | Columbia, Marquette | 49 min |
| Jul 1, 11:17 AM CDT | Severe Thunderstorm Warning | MKX | Columbia, Green Lake, Marquette | 43 min |
| Jul 1, 11:41 AM CDT | Severe Thunderstorm Warning | MKX | Fond du Lac | 64 min |
| Jul 1, 12:42 PM CDT | Severe Thunderstorm Warning | MKX | Sheboygan | 48 min |
| Jul 1, 12:50 PM CDT | Severe Thunderstorm Warning | MKX | Sheboygan | 25 min |
| Jul 1, 1:03 PM CDT | Special Marine Warning | MKX | 64 min | |
| Jul 1, 1:03 PM CDT | Severe Thunderstorm Warning | MKX | Sheboygan | 29 min |
| Jul 1, 4:22 PM CDT | Special Weather Statement | MKX | Lafayette | 23 min |
| Jul 1, 4:49 PM CDT | Special Weather Statement | MKX | Green | 26 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.