Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 63, NWS Milwaukee, WI
NWS Milwaukee, WI issued this severe thunderstorm warning at Apr 15, 2026, 3:00 AM CDT for Walworth County, Wisconsin. It was in force for 30 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
- Apr 15, 2026, 3:00 AM CDT (08:00 UTC)
- Expired
- Apr 15, 2026, 3:30 AM CDT
- In force
- 30 min
- Issued by
- NWS Milwaukee, WI
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
County Walworth County, WI
The radar
The Milwaukee radar (KMKX), 46 km from the middle of the area, began a volume at 08:00 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
Davenport, (KDVN), launched 00:00Z, 8.0 hours before the alert went out and 189 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
- 1575 J/kg
- Mixed-layer CIN
- -39 J/kg
- Mixed-layer LCL
- 1493 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 251 m²/s²
- 0-3 km storm-relative helicity
- 371 m²/s²
- Significant tornado parameter
- 1.9
- Supercell composite
- 19.9
The text
As transmitted.
165 WUUS53 KMKX 150800 SVRMKX WIC127-150830- /O.NEW.KMKX.SV.W.0063.260415T0800Z-260415T0830Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Milwaukee/Sullivan WI 300 AM CDT Wed Apr 15 2026 The National Weather Service in Milwaukee/Sullivan has issued a * Severe Thunderstorm Warning for... Southern Walworth County in southeastern Wisconsin... * Until 330 AM CDT. * At 259 AM CDT, a severe thunderstorm was located near Sharon, or near Harvard, moving east at 45 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. * Locations impacted include... Lake Geneva, Williams Bay, Genoa City, Walworth, Richmond, Fontana-On-Geneva Lake, Sharon, Como, Pell Lake, Powers 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 4254 8877 4271 8831 4249 8831 4249 8877 TIME...MOT...LOC 0759Z 256DEG 41KT 4248 8867 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...<50 MPH $$ QUIGLEY
3 follow-up statements
793
WWUS53 KMKX 150808
SVSMKX
Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
308 AM CDT Wed Apr 15 2026
WIC127-150830-
/O.CON.KMKX.SV.W.0063.000000T0000Z-260415T0830Z/
Walworth WI-
308 AM CDT Wed Apr 15 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 AM CDT
FOR SOUTHEASTERN WALWORTH COUNTY...
At 308 AM CDT, a severe thunderstorm was located near
Fontana-On-Geneva Lake, or near Williams Bay, moving east at 45 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Lake Geneva, Williams Bay, Genoa City, Walworth, Richmond,
Fontana-On-Geneva Lake, Pell Lake, Como, Powers Lake, Burlington,
Springfield, and Delavan Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4271 8831 4249 8831 4249 8866 4258 8865
TIME...MOT...LOC 0808Z 256DEG 41KT 4251 8853
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
QUIGLEY181
WWUS53 KMKX 150818
SVSMKX
Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
318 AM CDT Wed Apr 15 2026
WIC127-150830-
/O.CON.KMKX.SV.W.0063.000000T0000Z-260415T0830Z/
Walworth WI-
318 AM CDT Wed Apr 15 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 AM CDT
FOR SOUTHEASTERN WALWORTH COUNTY...
At 317 AM CDT, a severe thunderstorm was located over Pell Lake, or
near Lake Geneva, moving east at 45 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...
Lake Geneva, Genoa City, Richmond, Pell Lake, Como, Powers Lake,
Burlington, and Springfield.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4271 8831 4249 8831 4249 8848 4260 8853
TIME...MOT...LOC 0817Z 256DEG 41KT 4254 8838
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
QUIGLEY668 WWUS53 KMKX 150825 SVSMKX Severe Weather Statement National Weather Service Milwaukee/Sullivan WI 325 AM CDT Wed Apr 15 2026 WIC127-150835- /O.EXP.KMKX.SV.W.0063.000000T0000Z-260415T0830Z/ Walworth WI- 325 AM CDT Wed Apr 15 2026 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN WALWORTH COUNTY WILL EXPIRE AT 330 AM CDT... The storm which prompted the warning has moved out of the area. Therefore, the warning will be allowed to expire. && LAT...LON 4271 8831 4249 8831 4249 8848 4260 8853 TIME...MOT...LOC 0825Z 270DEG 41KT 4256 8829 $$ QUIGLEY
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 Apr 14, 10:01 PM CDT, 4 hours 59 minutes earlier. Its key messages:
- Additional severe storms possible Wednesday afternoon if a front remains stalled across the area. If the front sets up south of the area, severe potential will greatly decrease but flash flooding will remain possible due to training convection.
- Heavy rainfall could lead to additional periods of flooding this afternoon into Wednesday. Additional Flood Watches are possible especially tomorrow.
- Additional windows for heavy rainfall, flooding, and severe thunderstorms Friday into Saturday. All severe hazards will be possible later Tuesday afternoon into the evening.
Area forecast discussion, Apr 14, 10:01 PM CDT, 4 hours 59 minutes before
Area Forecast Discussion
National Weather Service Milwaukee/Sullivan WI
1001 PM CDT Tue Apr 14 2026
.KEY MESSAGES...
- Additional severe storms possible Wednesday afternoon if a
front remains stalled across the area. If the front sets up
south of the area, severe potential will greatly decrease but
flash flooding will remain possible due to training
convection.
- Heavy rainfall could lead to additional periods of flooding
this afternoon into Wednesday. Additional Flood Watches are
possible especially tomorrow.
- Additional windows for heavy rainfall, flooding, and severe
thunderstorms Friday into Saturday. All severe hazards will be
possible later Tuesday afternoon into the evening.
&&
.SHORT TERM...
Issued 1001 PM CDT Tue Apr 14 2026
Overnight through Wednesday:
The elevated environment will remain unstable as we remain in
the warm sector with upper divergence, weak vorticity advection,
and mid level warm air advection overhead. This will allow for a
few storms to percolate across portions of central and southern
WI overnight. Given the lingering high MUCAPE, a few storms
could approach marginal severe levels at times and bear
watching. The threat will wane as the night goes on and as the
LLJ veers.
The effective surface boundary should be stationed over
northern IL Wednesday morning as a weak mid level shortwave
trough tracks across the region. Southern WI may see scattered
showers and a few thunderstorms with the overriding of the
boundary in the morning and midday Wed.
A deeper shortwave trough will track across NE Wed morning and
into western IA by early evening. The associated surface low on
the leading edge should help lift that boundary into southern WI
during the late afternoon and evening hours. Storms within the
warm sector will have the potential for severe-level hail and
wind. Heavy rain is a threat with this system. We may need an
areal flood watch.
Meanwhile, there will be a steady northeast wind off Lake
Michigan and keep the air stable with low clouds and patchy fog,
especially north of Milwaukee. How far inland the fog/stratus
get Wed morning is still uncertain. Wherever the boundary
between the lake air and the warm, unstable air lands Wed
afternoon, this will be an extra focus for low level helicity
and the potential for a brief tornado along this boundary if
storms become strong enough.
Cronce
&&
.LONG TERM...
Issued 1001 PM CDT Tue Apr 14 2026
Thursday through Tuesday:
That deeper shortwave trough that went across IA Wed night will
track across southern WI Thursday morning. Scattered showers
and a few thunderstorms are expected with this feature,
especially in the morning with deeper moisture still in place
over the region. The chance for showers and thunderstorms will
linger into the afternoon. As the deeper moisture departs during
this time and we heat up, the low level lapse rates will
increase to allow for instability (up to 1000 j/kg) to develop.
A lake breeze should push inland and help to trigger some of the
showers/storms. Look for the precip chances to exit by sunset.
High pressure will pass through Thursday night and lows will dip
into the 40s wherever the lake breeze hit, so bisecting southern
WI from east to west. Friday morning and early afternoon look
quiet, but we will be getting primed for the next system to arrive
Friday late afternoon and night.
Low pressure tracking across the northern Plains on Friday, in
response to a high-amplitude upper trough, will cross Lake
Superior Friday night. A strong cold front will slide across WI
from west to east late Friday night through Saturday morning.
Showers are thunderstorms are expected within the warm sector
Friday afternoon/evening and also along the cold front. Scattered
showers are possible behind the front during the day Saturday.
Strong cold air advection will follow, so low temps should dip
down to around or below freezing Saturday night on brisk westerly
winds. The models dry out the atmosphere quickly, but if there
happens to be any lingering moisture, the precip type would chance
to flurries/snow.
Brisk westerly winds will persist through Sunday. Finally, high
pressure will dominate and give us dry weather through Monday or
Tuesday. The weather pattern has a large degree of uncertainty
beyond Monday between the models.
Cronce
&&
.AVIATION...
Issued 1001 PM CDT Tue Apr 14 2026
The main area of storms exited southeastern WI but there are a
few lingering showers and thunderstorms that will persist into
the overnight hours. There should be a lull in the shower
activity Wednesday morning but IFR ceilings and visibility may
work into east central WI including Sheboygan overnight into
Saturday morning on moist ENE winds off Lake Michigan. There is
a lot of uncertainty about how far inland and southward these
low ceilings and fog will expand.
The next chance for more widespread showers and thunderstorms
will arrive in southern WI late Wednesday afternoon and taper
off during late evening.
Cronce
&&
.MARINE...
Issued 1001 PM CDT Tue Apr 14 2026
A stationary front will remain parked over the middle third of
the lake into tomorrow, slowly sinking south to the southern end
of the lake by Thursday morning. Winds will remain southerly
south of the front and modestly breezy, while winds north of the
front will remain light and variable to northerly during this
time. The front will clear the lake as a cold front Friday,
before low pressure of 29.6 inches approaches from the west.
Thunderstorms are possible over the southern third overnight into
Thursday morning, then Thursday late afternoon and night.
Thunderstorm chances return along a cold front Friday night.
Cronce
&&
.MKX WATCHES/WARNINGS/ADVISORIES...
WI...None.
LM...Dense Fog Advisory...LMZ261-LMZ362-LMZ364-LMZ366-LMZ563-LMZ565-
LMZ567-LMZ643-LMZ644-LMZ669-LMZ671-LMZ868-LMZ870-LMZ872
until 7 AM Wednesday.
&&
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www.youtube.com/NWSMilwaukeeHazardous weather outlook, Apr 14, 11:24 PM CDT, 3 hours 36 minutes before
Hazardous Weather Outlook...UPDATED National Weather Service Milwaukee/Sullivan WI 1124 PM CDT Tue Apr 14 2026 WIZ046-047-051-052-056>060-062>072-160430- Marquette-Green Lake-Fond du Lac-Sheboygan-Sauk-Columbia-Dodge- Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee- Lafayette-Green-Rock-Walworth-Racine-Kenosha- 1124 PM CDT Tue Apr 14 2026 This Hazardous Weather Outlook is for portions of east central Wisconsin, south central Wisconsin and southeast Wisconsin. .DAY ONE...Tonight Scattered showers and thunderstorms will continue into the overnight hours. Small hail, cloud to ground lightning and locally heavy rainfall are expected. There is a localized flash flood threat where thunderstorms move slow. .DAYS TWO THROUGH SEVEN...Wednesday through Tuesday There is yet another risk of severe thunderstorms from mid afternoon Wednesday into Wednesday evening. Localized damaging winds, hail to the size of one inch and cloud to ground lightning are expected. Additional heavy rain will maintain a flooding risk across the area. Keep up with the latest forecast updates. There is a chance for isolated thunderstorms Thursday. Another round of potentially severe thunderstorms is expected from late Friday afternoon through Friday evening. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed Wednesday. LMZ643>646-160430- 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- 1124 PM CDT Tue Apr 14 2026 This Hazardous Weather Outlook is for the nearshore waters from Sheboygan Wisconsin to Winthrop Harbor Illinois. .DAY ONE...Tonight Dense fog continues mainly north of Milwaukee through tonight. .DAYS TWO THROUGH SEVEN...Wednesday through Tuesday Chances for thunderstorms continue through the end of the week, with some strong to severe storms possible Wednesday and Friday evening. Fog will continue into Wednesday morning. LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868- 870-872-874-876-878-160430- 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- 1124 PM CDT Tue Apr 14 2026 This Hazardous Weather Outlook is for the open waters of Lake Michigan. .DAY ONE...Tonight Dense fog continues for the northern two thirds of Lake Michigan the rest of tonight. Scattered thunderstorms will continue over the far southern portion of the lake through the overnight hours. .DAYS TWO THROUGH SEVEN...Wednesday through Tuesday Chances for thunderstorms continue through the end of the week, with some strong to severe storms possible Wednesday and Friday evening. Fog will continue into Wednesday morning. www.weather.gov/mkx
In the hours before
Local storm report, Apr 15, 12:24 AM CDT, 2 hours 36 minutes before
Preliminary Local Storm Report
National Weather Service Milwaukee/Sullivan WI
1224 AM CDT Wed Apr 15 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0537 PM Hail 3 E Maple Bluff 43.11N 89.30W
04/14/2026 M3.50 Inch Dane WI Trained Spotter
Corrects previous hail report from 3 E Maple
Bluff. Trained spotter reports measured hail
stones as large as 3.5 inches in diameter.
&&
AQLocal storm report, Apr 15, 12:29 AM CDT, 2 hours 31 minutes before
Preliminary Local Storm Report
National Weather Service Milwaukee/Sullivan WI
1229 AM CDT Wed Apr 15 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0631 PM Hail 4 E Maple Bluff 43.11N 89.29W
04/14/2026 M4.00 Inch Dane WI Trained Spotter
Trained spotter measures softball sized hail
near Maple Bluff.
&&
AQLocal storm report, Apr 15, 12:31 AM CDT, 2 hours 29 minutes before
Preliminary Local Storm Report
National Weather Service Milwaukee/Sullivan WI
1231 AM CDT Wed Apr 15 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0445 PM Hail 4 SW Middleton 43.07N 89.57W
04/14/2026 M2.75 Inch Dane WI Trained Spotter
Trained spotter measures hail stones as
large as 2.75 inches in diameter.
&&
AQLocal storm report, Apr 15, 12:38 AM CDT, 2 hours 22 minutes before
Preliminary Local Storm Report
National Weather Service Milwaukee/Sullivan WI
1238 AM CDT Wed Apr 15 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0700 PM Tstm Wnd Gst 4 W Paoli 42.94N 89.61W
04/14/2026 E70 MPH Dane WI Trained Spotter
Trained spotter estimates 70 MPH winds.
&&
AQLocal storm report, Apr 15, 12:40 AM CDT, 2 hours 20 minutes before
Preliminary Local Storm Report
National Weather Service Milwaukee/Sullivan WI
1240 AM CDT Wed Apr 15 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0755 PM Tstm Wnd Gst 3 SE Rockdale 42.94N 89.00W
04/14/2026 E70 MPH Jefferson WI Trained Spotter
Trained spotter estimates 70 MPH winds.
&&
AQLocal storm report, Apr 15, 12:43 AM CDT, 2 hours 17 minutes before
Preliminary Local Storm Report
National Weather Service Milwaukee/Sullivan WI
1243 AM CDT Wed Apr 15 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0707 PM Hail 2 NE Maple Bluff 43.14N 89.35W
04/14/2026 E2.75 Inch Dane WI Public
Trained spotter estimates baseball sized
hail.
&&
AQThe office that day
Everything else NWS Milwaukee, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 14, 7:00 PM CDT | Severe Thunderstorm Warning | MKX | Fond du Lac, Green Lake | 30 min |
| Apr 14, 7:05 PM CDT | Tornado Warning | MKX | Iowa, Lafayette | 25 min |
| Apr 14, 7:10 PM CDT | Flash Flood Warning | MKX | Dodge, Milwaukee, Ozaukee, Washington, Waukesha | 3 hr |
| Apr 14, 7:21 PM CDT | Severe Thunderstorm Warning | MKX | Green, Rock | 24 min |
| Apr 14, 7:23 PM CDT | Severe Thunderstorm Warning | MKX | Columbia, Dane | 22 min |
| Apr 14, 7:25 PM CDT | Areal Flood Advisory | MKX | Dane, Iowa | 3 hr |
| Apr 14, 7:26 PM CDT | Areal Flood Advisory | MKX | Fond du Lac, Green Lake | 3 hr |
| Apr 14, 7:28 PM CDT | Severe Thunderstorm Warning | MKX | Dodge, Jefferson | 62 min |
| Apr 14, 7:39 PM CDT | Severe Thunderstorm Warning | MKX | Dane, Green, Rock | 51 min |
| Apr 14, 7:58 PM CDT | Flash Flood Warning | MKX | Milwaukee, Waukesha | 3 hr |
| Apr 14, 7:59 PM CDT | Severe Thunderstorm Warning | MKX | Walworth | 61 min |
| Apr 14, 8:00 PM CDT | Special Marine Warning | MKX | 2 hr | |
| Apr 14, 8:18 PM CDT | Tornado Warning | MKX | Jefferson, Waukesha | 21 min |
| Apr 14, 8:24 PM CDT | Tornado Warning | MKX | Walworth | 23 min |
| Apr 14, 8:30 PM CDT | Severe Thunderstorm Warning | MKX | Kenosha, Racine | 49 min |
| Apr 14, 8:35 PM CDT | Tornado Warning | MKX | Racine | 33 min |
| Apr 14, 8:57 PM CDT | Tornado Warning | MKX | Kenosha | 17 min |
| Apr 14, 9:12 PM CDT | Special Weather Statement | MKX | Sauk | 33 min |
| Apr 14, 10:02 PM CDT | Areal Flood Advisory | MKX | Dane, Dodge, Jefferson, Ozaukee, Washington, Waukesha | 3 hr |
| Apr 14, 10:13 PM CDT | River Flood Warning | MKX | Dodge | 21 days |
| Apr 14, 10:14 PM CDT | Special Weather Statement | MKX | Marquette | 16 min |
| Apr 14, 10:33 PM CDT | Areal Flood Advisory | MKX | Green, Lafayette | 3 hr |
| Apr 14, 10:57 PM CDT | Areal Flood Advisory | MKX | Kenosha, Milwaukee, Racine, Waukesha | 3 hr |
| Apr 14, 10:59 PM CDT | Areal Flood Advisory | MKX | Green, Rock, Walworth | 3 hr |
| Apr 14, 11:02 PM CDT | Special Weather Statement | MKX | Sauk | 43 min |
| Apr 14, 11:21 PM CDT | Areal Flood Advisory | MKX | Green, Rock | 3 hr |
| Apr 14, 11:25 PM CDT | Severe Thunderstorm Warning | MKX | Columbia, Green Lake, Marquette, Sauk | 33 min |
| Apr 15, 3:23 AM CDT | Dense Fog Advisory | MKX | Columbia, Fond du Lac, Green Lake, Marquette, Sauk | 7 hr |
| Apr 15, 3:25 AM CDT | Special Weather Statement | MKX | Kenosha | 50 min |
| Apr 15, 4:22 AM CDT | River Flood Watch | MKX | Jefferson | 21 days |
| Apr 15, 4:22 AM CDT | River Flood Watch | MKX | Jefferson | 40 hr |
| Apr 15, 4:23 AM CDT | River Flood Watch | MKX | Rock | 21 days |
| Apr 15, 4:24 AM CDT | River Flood Watch | MKX | Green Lake | 40 hr |
| Apr 15, 10:50 AM CDT | River Flood Warning | MKX | Kenosha | 15 days |
| Apr 15, 11:17 AM CDT | Flood Watch | MKX | Columbia, Dane, Dodge, Fond du Lac, Green, Green Lake and 14 more | 24 hr |
| Apr 15, 11:19 AM CDT | River Flood Watch | MKX | Waukesha | 3 days |
| Apr 15, 11:22 AM CDT | River Flood Warning | MKX | Ozaukee | 5 days |
| Apr 15, 11:51 AM CDT | River Flood Warning | MKX | Jefferson | 21 days |
| Apr 15, 4:49 PM CDT | Special Weather Statement | MKX | Iowa, Sauk | 56 min |
| Apr 15, 5:29 PM CDT | Severe Thunderstorm Warning | MKX | Iowa | 46 min |
| Apr 15, 5:56 PM CDT | River Flood Watch | MKX | Jefferson | 21 days |
| Apr 15, 6:07 PM CDT | Special Weather Statement | MKX | Iowa | 38 min |
| Apr 15, 6:23 PM CDT | Severe Thunderstorm Warning | MKX | Green, Lafayette | 52 min |
| Apr 15, 6:29 PM CDT | Tornado Warning | MKX | Green, Lafayette | 46 min |
| Apr 15, 6:44 PM CDT | Special Weather Statement | MKX | Dane | 31 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.