Numerous thunderstorms along a warm front brought large hail, damaging winds, and some flooding to eastern WI. Later in the day, scattered thunderstorms along the cold front brought large hail to the Janesville area.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS MKX wrote it up.
Numerous thunderstorms along a warm front brought large hail, damaging winds, and some flooding to eastern WI. Later in the day, scattered thunderstorms along the cold front brought large hail to the Janesville area.
The local office's own words before the first event, 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 the first event at Jun 25, 2:22 AM CST, 33 minutes earlier. Its key messages:
Area Forecast Discussion
National Weather Service Milwaukee/Sullivan WI
322 AM CDT Tue Jun 25 2024
.KEY MESSAGES...
- Mainstem river flooding and high water levels will continue
over the next few days.
- Heat index values into the 90s are possible today.
- Strong Thunderstorms look to return later on Friday.
&&
.SHORT TERM...
Issued 320 AM CDT Tue Jun 25 2024
Today and Tonight:
Atmospheric conditions will change over most of the forecast
area after 15Z today. CAPE and overall moisture will be meager
after this time per models, as surface wind shifts more
westerly. Therefore, this afternoon and evening should be
generally dry. Temperatures will quickly rise by this afternoon
with many locations approaching the upper 80s and lower 90s.
Southern Wisconsin actually looks to be in a pinch this evening
and tonight between showers and thunderstorms to our south over
northern Illinois and another shortwave approaching from our
west. This wave should be monitored tonight, as cloud cover
increases. There also looks to be a weak surface boundary
setting up across the forecast area later tonight, which may
generate a few showers or an isolated thunderstorm, mostly near
Lake Michigan in far southeast Wisconsin.
KPL
&&
.LONG TERM...
Issued 320 AM CDT Tue Jun 25 2024
Wednesday through Monday:
Shortwave moves east Wednesday morning and early afternoon, as
drier air begins to advect into Wisconsin. Heights aloft then push
any energy well north of the forecast area. All indications are
that shortwave ridging will result in dry weather later Wednesday
through Thursday. In fact, it should be dry into early Friday
across southern Wisconsin.
Flow aloft then becomes more southwesterly on Friday with
increasing moisture aided by yet another low level jet for Friday
afternoon and evening. There also looks to be lift in the mid and
upper levels with another trough approaching Wisconsin from the
west. The result should be more thunderstorms, some could be
strong. It will also be quite warm on Friday.
There should also be a surface cold front moving through sometime
Friday night into early Saturday. Thinking the instability will
stick around for Saturday to keep some shower and thunderstorm
chances. Will have to keep an eye out for another shortwave aloft
during the day Saturday, possibly supporting steeper lapse rates
(and hence instability). Temperatures should be a little cooler
on Saturday.
Sunday and Monday in the extended then look dry and pleasant
across southern Wisconsin. No weather threats to consider at this
time, but will take a closer look as we approach the upcoming
weekend.
KPL
&&
.AVIATION...
Issued 320 AM CDT Tue Jun 25 2024
Surface winds will decrease later this morning and afternoon.
Any remaining storms will dissipate or exit the region, leaving
VFR conditions for this afternoon and evening. There will
remain some cloud cover tonight into early Wednesday, but a
brief drying trend will occur across southern Wisconsin routes.
KPL
&&
.MARINE...
Issued 320 AM CDT Tue Jun 25 2024
Storms will move off the northern parts of Lake Michigan this
morning. There will be some clearing with less wind by this
afternoon. Winds will then be variable over most of Lake
Michigan through Wednesday. Isolated showers and storms remain
possible early Wednesday before a drying trend begins. Next day
for increasing waves and small craft concerns will be on Friday.
We will also allow the Small Craft Advisory to expire at 12Z.
KPL
&&
.MKX WATCHES/WARNINGS/ADVISORIES...
WI...None.
LM...Small Craft Advisory...LMZ643-LMZ644-LMZ645-LMZ646 until 7 AM
Tuesday.
&&
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www.youtube.com/NWSMilwaukeeHazardous Weather Outlook National Weather Service Milwaukee/Sullivan WI 344 AM CDT Tue Jun 25 2024 WIZ046-047-051-052-056>060-062>072-260845- Marquette-Green Lake-Fond du Lac-Sheboygan-Sauk-Columbia-Dodge- Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee- Lafayette-Green-Rock-Walworth-Racine-Kenosha- 344 AM CDT Tue Jun 25 2024 This Hazardous Weather Outlook is for portions of east central Wisconsin, south central Wisconsin and southeast Wisconsin. .DAY ONE...Today and Tonight A line of strong to severe thunderstorms will move over Lake Michigan early this morning. Strong winds of 60 MPH or greater will be the greatest threat, along with locally heavy rain. Most of this thunderstorm activity will end after 9 am. .DAYS TWO THROUGH SEVEN...Wednesday through Monday Runoff from recent heavy rains will cause many rivers and streams to continue rise through the week, with flooding possible. There are additional chances for thunderstorms Friday into Saturday. Warm temperatures and high dewpoints will cause heat index values to rise into the lower to middle 90s today. .SPOTTER INFORMATION STATEMENT... Spotter activation will be needed until 9 am this morning. This especially includes Fond du Lac, Ozaukee, and Sheyboygan Counties. Any reports of damaging winds, excessive rainfall or flooding will be appreciated. LMZ643>646-260845- 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- 344 AM CDT Tue Jun 25 2024 This Hazardous Weather Outlook is for the nearshore waters from Sheboygan Wisconsin to Winthrop Harbor Illinois. .DAY ONE...Today and Tonight A line of strong to severe thunderstorms will impact the nearshore waters until 10 am this morning. These storms will contain strong wind gusts and heavy rain. .DAYS TWO THROUGH SEVEN...Wednesday through Monday There are additional chances for thunderstorms Friday into Saturday. LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868- 870-872-874-876-878-260845- 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- 344 AM CDT Tue Jun 25 2024 This Hazardous Weather Outlook is for the open waters of Lake Michigan. .DAY ONE...Today and Tonight A line of strong thunderstorms is expected to impact the lake this morning, bringing very gusty winds and heavy rainfall. Storms will move east by this afternoon with decreasing surface winds. .DAYS TWO THROUGH SEVEN...Wednesday through Monday There are additional chances for thunderstorms Friday into Saturday. Gusty winds are likely over the entire lake on Friday. KPL www.weather.gov/mkx
Special Weather Statement
National Weather Service Milwaukee/Sullivan WI
1221 AM CDT Tue Jun 25 2024
WIZ064-065-250600-
Waukesha WI-Jefferson WI-
1221 AM CDT Tue Jun 25 2024
...A STRONG THUNDERSTORM WILL IMPACT SOUTHWESTERN WAUKESHA AND
SOUTHEASTERN JEFFERSON COUNTIES THROUGH 100 AM CDT...
At 1221 AM CDT, Doppler radar was tracking a strong thunderstorm over
Jefferson, moving southeast at 30 mph.
HAZARD...Wind gusts up to 40 mph and nickel 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...
Whitewater, Fort Atkinson, Jefferson, Mukwonago, Wales, Ottawa,
Dousman, North Prairie, Palmyra, Rome, Eagle, Hebron, Sullivan,
Genesee Depot, Genesee, Helenville, and Nws Milwaukee/sullivan.
This includes Wisconsin Highway 26 between mile markers 22 and 31.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4295 8888 4306 8881 4297 8828 4284 8837
4284 8872
TIME...MOT...LOC 0521Z 296DEG 27KT 4299 8875
MAX HAIL SIZE...0.88 IN
MAX WIND GUST...40 MPH
WAGNERSpecial Weather Statement
National Weather Service Milwaukee/Sullivan WI
328 AM CDT Tue Jun 25 2024
WIZ062-067-250915-
Lafayette WI-Iowa WI-
328 AM CDT Tue Jun 25 2024
...A STRONG THUNDERSTORM WILL IMPACT LAFAYETTE AND IOWA COUNTIES
THROUGH 415 AM CDT...
At 327 AM CDT, Doppler radar was tracking a strong thunderstorm near
Belmont, or 8 miles northeast of Platteville, moving east at 35 mph.
HAZARD...Wind gusts up to 40 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...
Dodgeville, Mineral Point, Darlington, Belmont, Argyle,
Blanchardville, Barneveld, Wiota, Ridgeway, Linden, Waldwick, Elk
Grove, Cobb, Fayette, Lamont, Rewey, Hollandale, Calamine,
Yellowstone Lake St Park, and Platte Mounds.
This includes the following highways...
U.S. Highway 18 between mile markers 49 and 61.
U.S. Highway 151 between mile markers 23 and 47.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4292 9043 4309 9018 4311 8984 4261 8984
4259 9042
TIME...MOT...LOC 0827Z 277DEG 30KT 4281 9035
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH
WAGNERThe Green Bay radar (KGRB), 87 km away, was scanning. The volume nearest the first event began at 08:55 UTC.
13 hail, 3 thunderstorm wind, 2 flood. Local standard time, as filed.
Scattered tree limbs down in Sheboygan including on a large van. A few photos provided.
Sheboygan Airport wind measurement.
Uprooted tree fell onto a fence. Photo provided.
The intersection of highway 67 and County Road U was closed due to flooding.
A portion of County Road LL closed due to flooding.
Photo provided.
A few quarter sized hail stones.
At least one hail stone around half dollar size.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Wisconsin in 2024Every state in 2024This day in weather historyWarnings in Wisconsin, June 2024
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1195011, 1195010, 1195012, 1195014, 1195002, 1195003, 1195004, 1195005, 1195006, 1195007, 1195013, 1195008, 1195009, 1195015, 1195016, 1195017, 1195018, 1195019.