A broken line of strong thunderstorms along a warm front moved across far south central WI early in the morning. One storm became severe and knocked down some trees.
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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.
A broken line of strong thunderstorms along a warm front moved across far south central WI early in the morning. One storm became severe and knocked down some trees.
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 13, 3:05 AM CST, 2 hours 17 minutes earlier. Its key messages:
Area Forecast Discussion National Weather Service Milwaukee/Sullivan WI 405 AM CDT Thu Jun 13 2024 .KEY MESSAGES... - Showers and thunderstorms likely through early this morning, especially north of I-94 - Additional thunderstorms possible this afternoon, some of which may be severe. - Brief cool down Friday and Saturday, but hotter temps build in for Sunday into early next week && .SHORT TERM... Issued 405 AM CDT Thu Jun 13 2024 Today through Friday: Showers and storms will move through at least the northern portions of the forecast area this morning, particularly north of I-94. Could be a few stronger storms with some hail this morning given elevated instability in place. There remains uncertainty with storm chances the rest of the day. Latest runs of the HRRR continue to be the most aggressive solutions with storm development early to mid afternoon, with the HRRR keeping the effective boundary farther north than other models. If the boundary is farther south as many models are showing, much of the activity might wind up south of the WI/IL border. Any storms that do fire in the forecast area this afternoon will have the potential to become severe, given plenty of instability and gradually increasing shear. Large hail and damaging winds would the main concerns. Best chance for storms will likely be roughly from Port Washington to Monroe and southeastward. Should be enough sun between rounds of convection for temps into the 80s today. Dry weather is likely to return by early evening, with the front/boundary south of the state by then. High pressure will then build in on Friday, brining mostly sunny skies and cooler temps to the area. DDV && .LONG TERM... Issued 405 AM CDT Thu Jun 13 2024 Friday night through Wednesday: High pressure is expected to gradually shift eastward Friday night and Saturday. Onshore flow will continue to bring mild temperatures and lower humidity to the area. The 500 mb ridge axis shifts eastward over the area on Saturday, and may bring a shortwave trough northeastward along with it. Another shortwave trough may shift northeast through the area Saturday night or Sunday. This may combine with some focused 850 mb warm air advection to bring some elevated showers and thunderstorms at times later Saturday into Sunday. The best focus for this activity appears to be to the northwest of the area during this period, so there may be some uncertainty with how far southeast into the area any of this activity may reach. South to southwest winds in the low levels will continue to bring warm air advection into the area Sunday into next week, with the area likely to be firmly in the warm sector airmass by Monday and lingering into at least the middle of next week. Ensembles and NBM are still confident with general 25th to 75th percentile ranges for high temperatures of upper 80s to lower 90s for Sunday into most of next week. Went in this general range for highs during this period, and could go a little higher if stronger southerly flow develops. Heat index values in the lower to middle 90s appears likely at this time for most of this period. Areas toward Port Washington and Sheboygan, along with locations right along the lakeshore, may get a little onshore flow and some relief from the very warm and humid conditions. The cold front and next decent chances for showers and storms may not push into the region until later in the week. Kept some PoPs for showers and storms in the forecast into next week, though if the warm sector remains in place, any precipitation may be limited to peak daytime heating with popcorn showers and storms developing from reaching convective temperatures. Wood && .AVIATION... Issued 405 AM CDT Thu Jun 13 2024 Showers and storms will move through at least the northern portions of the forecast area this morning, particularly north of I-94. Could be a few stronger storms with some hail this morning given elevated instability in place. Best chance for storms this afternoon will be roughly from Port Washington to Monroe and southeastward. There is a chance that the majority of the storms could fire mainly south of the state line. Any storms that do develop this afternoon would have the potential to be severe. Southwest winds this morning will become west to northwest this afternoon behind a front. Mostly clear skies will return this evening and hang on into tonight as high pressure builds into the area. DDV && .MARINE... Issued 405 AM CDT Thu Jun 13 2024 Southwest winds this morning will become west to northwest this afternoon into the evening as a cold front drops through the area. There will be a chance for thunderstorms along and ahead of the front. Winds will be northerly on Friday behind departing low pressure and ahead of an approaching high. Winds will be lighter on Saturday, picking back up out of the south on Sunday as the high pushes east of the area. DDV && .MKX WATCHES/WARNINGS/ADVISORIES... WI...None. LM...None. && Visit us at weather.gov/milwaukee Follow us on Facebook, Twitter, and YouTube at: www.facebook.com/NWSMilwaukee www.twitter.com/NWSMilwaukee www.youtube.com/NWSMilwaukee
Hazardous Weather Outlook National Weather Service Milwaukee/Sullivan WI 410 AM CDT Thu Jun 13 2024 WIZ046-047-051-052-056>060-062>072-140915- Marquette-Green Lake-Fond du Lac-Sheboygan-Sauk-Columbia-Dodge- Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee- Lafayette-Green-Rock-Walworth-Racine-Kenosha- 410 AM CDT Thu Jun 13 2024 This Hazardous Weather Outlook is for portions of east central Wisconsin, south central Wisconsin and southeast Wisconsin. .DAY ONE...Today and Tonight There is a chance of thunderstorms through early this morning and again this afternoon. A few of the storms may be severe, particularly this afternoon. .DAYS TWO THROUGH SEVEN...Friday through Wednesday There are chances for thunderstorms at times Saturday night into next week. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed this afternoon. LMZ643>646-140915- 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- 410 AM CDT Thu Jun 13 2024 This Hazardous Weather Outlook is for the nearshore waters from Sheboygan Wisconsin to Winthrop Harbor Illinois. .DAY ONE...Today and Tonight There is a chance of thunderstorms through early this morning and again this afternoon. A few of the storms may be severe, particularly this afternoon. .DAYS TWO THROUGH SEVEN...Friday through Wednesday There are chances for thunderstorms at times Saturday night into next week. LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868- 870-872-874-876-878-140915- 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- 410 AM CDT Thu Jun 13 2024 This Hazardous Weather Outlook is for the open waters of Lake Michigan. .DAY ONE...Today and Tonight There is a chance of thunderstorms through early this morning and again this afternoon, particularly across the south half of the lake. .DAYS TWO THROUGH SEVEN...Friday through Wednesday There are chances for thunderstorms at times Saturday night into next week. www.weather.gov/mkx
Special Weather Statement
National Weather Service Milwaukee/Sullivan WI
343 AM CDT Thu Jun 13 2024
WIZ056-130930-
Sauk WI-
343 AM CDT Thu Jun 13 2024
...A STRONG THUNDERSTORM WILL IMPACT CENTRAL SAUK COUNTY THROUGH 430
AM CDT...
At 342 AM CDT, Doppler radar was tracking a strong thunderstorm 10
miles northeast of Richland Center, moving east at 35 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...
Reedsburg, North Freedom, Rock Springs, Loganville, Ironton, Lime
Ridge, and Hill Point.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4356 8979 4326 8985 4334 9019 4356 9019
TIME...MOT...LOC 0842Z 282DEG 32KT 4346 9027
MAX HAIL SIZE...0.88 IN
MAX WIND GUST...40 MPH
DDVSpecial Weather Statement
National Weather Service Milwaukee/Sullivan WI
533 AM CDT Thu Jun 13 2024
WIZ067-068-131115-
Green WI-Lafayette WI-
533 AM CDT Thu Jun 13 2024
...A STRONG THUNDERSTORM WILL IMPACT SOUTHEASTERN LAFAYETTE AND
SOUTHERN GREEN COUNTIES THROUGH 615 AM CDT...
At 533 AM CDT, Doppler radar was tracking a strong thunderstorm near
Argyle, or 10 miles west of Monroe, moving east at 30 mph.
HAZARD...Nickel size hail.
SOURCE...Radar indicated.
IMPACT...Minor hail damage to vegetation is possible.
Locations impacted include...
Monroe, South Wayne, Browntown, Juda, and Woodford.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4251 8990 4253 8996 4266 8988 4261 8945
4250 8952
TIME...MOT...LOC 1033Z 289DEG 27KT 4261 8986
MAX HAIL SIZE...0.88 IN
MAX WIND GUST...<30 MPH
DDVSpecial Weather Statement
National Weather Service Milwaukee/Sullivan WI
542 AM CDT Thu Jun 13 2024
WIZ068-069-131115-
Green WI-Rock WI-
542 AM CDT Thu Jun 13 2024
...A STRONG THUNDERSTORM WILL IMPACT NORTHEASTERN GREEN AND WESTERN
ROCK COUNTIES THROUGH 615 AM CDT...
At 541 AM CDT, Doppler radar was tracking a strong thunderstorm near
Albany, or 8 miles west of Evansville, moving southeast at 35 mph.
HAZARD...Nickel size hail.
SOURCE...Radar indicated.
IMPACT...Minor hail damage to vegetation is possible.
Locations impacted include...
Janesville, Evansville, Orfordville, Brooklyn, Albany, Footville,
Magnolia, Hanover, Leyden, and Attica.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4275 8956 4286 8949 4286 8939 4272 8900
4252 8916
TIME...MOT...LOC 1041Z 299DEG 32KT 4278 8947
MAX HAIL SIZE...0.88 IN
MAX WIND GUST...<30 MPH
DDVSpecial Weather Statement
National Weather Service Milwaukee/Sullivan WI
612 AM CDT Thu Jun 13 2024
WIZ069-070-131145-
Walworth WI-Rock WI-
612 AM CDT Thu Jun 13 2024
...A STRONG THUNDERSTORM WILL IMPACT SOUTHWESTERN WALWORTH AND
SOUTHEASTERN ROCK COUNTIES THROUGH 645 AM CDT...
At 612 AM CDT, Doppler radar was tracking a strong thunderstorm near
Footville, or 7 miles southwest of Janesville, moving southeast at 40
mph.
HAZARD...Nickel size hail.
SOURCE...Radar indicated.
IMPACT...Minor hail damage to vegetation is possible.
Locations impacted include...
Janesville, Beloit, Clinton, Sharon, Tiffany, Foxhollow, Afton,
Shopiere, and Hanover.
This includes the following highways...
Interstate 39/90 between mile markers 177 and 187.
Interstate 43 between mile markers 0 and 11.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4250 8912 4256 8920 4270 8913 4250 8856
4249 8857 4249 8871
TIME...MOT...LOC 1112Z 300DEG 36KT 4263 8913
MAX HAIL SIZE...0.88 IN
MAX WIND GUST...<30 MPH
DDVThe Milwaukee radar (KMKX), 62 km away, was scanning. The volume nearest the first event began at 11:24 UTC.
1 thunderstorm wind. Local standard time, as filed.
A swath of scattered tree damage from Beloit Airport to Maxworthy Road. Multiple tree branches fell onto a home on Maxworthy Road.
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: 1194119.