Several rounds of severe thunderstorms tracked along a warm front over southern WI from the afternoon of July 23rd into the early morning hours of July 24th. Numerous reports of wind damage were received.
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.
Several rounds of severe thunderstorms tracked along a warm front over southern WI from the afternoon of July 23rd into the early morning hours of July 24th. Numerous reports of wind damage were received. Destructive, large hail and flash flooding also occurred.
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 Jul 23, 1:54 PM CST, 1 hour 37 minutes earlier.
Area Forecast Discussion...UPDATED National Weather Service Milwaukee/Sullivan WI 254 PM CDT Sat Jul 23 2022 .SHORT TERM... (Issued 254 PM CDT Sat Jul 23 2022) Tonight and Sunday: All of the focus is on how the severe event unfolds this afternoon and evening. Things are still looking on track and we're expecting to get put into a watch in the next hour or so. Here are the latest thoughts. Latest mesoanalysis shows a multicell cluster of storms in southeast MN/north central IA which have formed along the nose of a 6000 J/kg SBCAPE axis that arcs from that area down into northwest IL. These storms have at times had some rotation with them, but things haven't organized quite yet into well developed system. The expectation is that these storms are the focus for what will develop into a line and then roll through southern Wisconsin late this afternoon on into tonight. The 23.18z RAP (and previous runs) have had a good handle on the current situation and have been fairly consistent with the picture it paints for this afternoon/evening. The expectation is that stronger low level flow will kick in over the next couple of hours, which will help advect the surface/low level warm front northward from its current position on up into southern Wisconsin. By 24.00z tonight, the warm front is expected to align from near La Crosse east toward the Dells and then dropping southeast toward northeast IL. Deep layer 0-6km shear is already decent and in place due to some 35-45kt winds in place at 500mb. Low level wind shear is expected to increase through the evening hours as the low level jet strengthens out of the southwest. 0-1km wind shear is in a bit of lull over southern WI at the moment, but 0-3km is okay at 25-30kts out of the west-northwest. Again, that is forecast to increase as the storms arrive into southern Wisconsin this evening which will lead to a better environment for mesovort production if the QLCS is at it's peak intensity. What could lead to this possibly not happening? Well, there's some high level anvil blowoff from the current convection in MN/IA that has lead to temperatures being a bit 'cooler' in that area. However, with the LLJ cranking up and feeding into the storms, it doesn't look like that will affect things much. Other than that, there's not much to say this won't happen. If anything, it's just a matter of where it goes. The past few runs of the HRRR have come in line with our thinking here that the complex will start off going east but then will follow the better instability to its southwest and dig southeast through southeast WI toward the evening. Some of the other CAMS/NAM-nest have hinted at more of a direct east propagation as a result of it pushing the warm front way further north. Once the complex gets a bit organized, it is expected to accelerate across southern WI. The main thing we'll be watching for with mesovort development is if the line can keep up with its outflow. Also, the HRRR has been showing a 'tag line' of weaker convection leading into the line which could highlight the warm front and where there would be a higher potential for mesovort development. Otherwise, beyond the main show there does look to be a period of more unorganzied convection occurring across southern WI due to the low level jet remaining strong and out of the southwest overnight. This could lead to some heavy rainfall and localized flash flooding with PWs up around 2". This show should come to an end tomorrow morning as the cold front pushes in. Sunday through Sunday night: Cold front will be shifting off to the southeast. Some lingering showers or storms may still be in the area at the outset before trending out of SE WI but the bulk should have shifted out of the area. Otherwise cool and dry advection will get underway ahead of high pressure working in from the west. Halbach && .LONG TERM... (Issued 254 PM CDT Sat Jul 23 2022) Monday through Tuesday: Quiet weather pattern will continue this period with low level thermal trough dominating for Monday. We will start to see a warm air advection regime take hold later Monday night with low level warm axis becoming established for Tuesday. Tuesday night through Wednesday: The next weather maker arrives Tuesday night as a mid level wave combined with a surface boundary generate the potential for more showers/thunderstorms. The best chance will be in the west late with the chances expanding across the remainder of the area on Wednesday. Thursday through Saturday: A generally quiet period is expected once again with high pressure gradually working into the area. Halbach && .AVIATION... (Issued 254 PM CDT Sat Jul 23 2022) Main concern is with thunderstorm potential late this afternoon into this evening and overnight. Thunderstorms are expected to be severe as they roll through with winds possibly going over 70mph. As these storms come through, visibility will drop to IFR which could linger into the overnight hours. Conditions should improve into tomorrow morning as the system and cold front clear by. Halbach && .MARINE... (Issued 254 PM CDT Sat Jul 23 2022) Main concern is with the potential for a squall line with intense winds rolling across the lake this evening. The southern to central half of the lake is the most likely area to see these potentially high winds. Otherwise, winds are expected to swing around to the northwest behind the cold front that passes tonight. Halbach && .MKX WATCHES/WARNINGS/ADVISORIES... WI...Heat Advisory...WIZ062-WIZ067-WIZ068 until 8 PM Saturday. 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 301 PM CDT Sat Jul 23 2022 WIZ046-047-051-052-056>060-062>072-242015- Marquette-Green Lake-Fond du Lac-Sheboygan-Sauk-Columbia-Dodge- Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee- Lafayette-Green-Rock-Walworth-Racine-Kenosha- 301 PM CDT Sat Jul 23 2022 This Hazardous Weather Outlook is for portions of east central Wisconsin, south central Wisconsin and southeast Wisconsin. .DAY ONE...Tonight A Heat Advisory is in effect for Iowa, Lafayette and Green Counties until 8 PM this evening. Heat index values around 100 are expected in this area, with middle to upper 90s elsewhere. A line of severe storms is expected to move east southeast through southern Wisconsin later this afternoon and tonight, with damaging winds of 70 to 80 MPH possible. In addition, brief, weak tornadoes, large hail and locally heavy rainfall are possible. The main threat is expected to be between 4pm and 10pm tonight. More storms are expected to develop overnight in southern Wisconsin after the main line goes through which could have heavy rain and localized flooding. .DAYS TWO THROUGH SEVEN...Sunday through Saturday There are chances for thunderstorms Tuesday night into Wednesday. .SPOTTER INFORMATION STATEMENT... Spotter activation will be needed later this afternoon and tonight. LMZ643>646-242015- 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- 301 PM CDT Sat Jul 23 2022 This Hazardous Weather Outlook is for the nearshore waters from Sheboygan Wisconsin to Winthrop Harbor Illinois. .DAY ONE...Tonight A line of severe storms is expected to move east southeast through the nearshore waters tonight, with damaging winds of 50 knots or greater possible. In addition, embedded waterspouts and large hail are possible. Stay weather aware during this time. .DAYS TWO THROUGH SEVEN...Sunday through Saturday There are chances for thunderstorms Tuesday night into Wednesday. LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868- 870-872-874-876-878-242015- 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- 301 PM CDT Sat Jul 23 2022 This Hazardous Weather Outlook is for the open waters of Lake Michigan. .DAY ONE...Tonight A line of severe storms is expected to move east southeast through the open waters tonight, with damaging winds of 50 knots or greater possible. In addition, embedded waterspouts and large hail are possible. Stay weather aware during this time. .DAYS TWO THROUGH SEVEN...Sunday through Saturday There are chances for thunderstorms Tuesday night into Wednesday. www.weather.gov/mkx
The Green Bay radar (KGRB), 125 km away, was scanning. The volume nearest the first event began at 21:31 UTC.
49 thunderstorm wind, 16 hail, 2 flood, 1 flash flood. Local standard time, as filed.
Scattered trees down.
Scattered trees down across the county.
Scattered tree damage across the northern portion of the county.
Branches down throughout the campground.
Multiple tree limbs down on the roof of a home.
Tree down in the road.
Law enforcement estimates wind gusts of 60-65 mph.
Scattered tree limbs down.
Several branches and a street light down.
Several small branches down.
Several 3 inch diameter branches down.
A small number of trees uprooted or snapped.
Several 3 inch diameter branches down.
Several 3 inch diameter branches down.
A large tree was uprooted and landed on a house. Some roof and porch damage.
Trees down on power lines with loss of power.
Straight-line winds estimated at 60 mph.
Several tree limbs down.
Branches down.
Trained spotter estimates 60 mph winds and pea size hail.
A path of sporadic tree damage across the north half of Dodge County including in Horicon. Some large trees down. A small number of tree limbs down on houses and vehicles.
Several large tree limbs down.
Street flooding in the Waupun area from a second round of thunderstorms with heavy rainfall rates.
Some street flooding, yard flooding, and basement flooding in Beaver Dam from a second round of thunderstorms with heavy rainfall rates.
A 35 foot spruce tree snapped off at about 12 feet above ground.
Six to eight inch diameter tree branch down.
A large tree limb down.
Flash flooding of streets including a flooded Green Bay Road after a quick 2-2.5 inches of rainfall.
A large tree limb snapped off.
Tree snapped off at base.
Trees and power lines down in the Rewey and Linden areas. Some uprooted trees. Some structural damage to farm outbuildings.
Many trees down.
Several large tree branches down.
Several tree limbs down. A tarp was torn from a carport type structure.
Trees snapped and corn blown down.
Trees down on a house and a power pole. Small branches down.
A large tree uprooted.
Two trees snapped off at the base.
Large tree and power line down.
Scattered trees and branches down across the county.
Scattered tree limbs down.
Winds estimated at 65 mph.
Many trees down and much of Mayville without power.
Large tree limbs snapped off a large tree.
Several tree branches, some large, and power lines down.
Top of tree snapped off.
Multiple trees and branches down in Fort Atkinson.
A large tree uprooted.
Numerous tree branches and power lines down.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Wisconsin in 2022Every state in 2022This day in weather historyWarnings in Wisconsin, July 2022
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: 1042199, 1042242, 1042187, 1042212, 1042258, 1047675, 1042249, 1042251, 1047677, 1047683, 1047685, 1047697, 1047698, 1047684, 1047686, 1047721, 1042263, 1047722, 1047709, 1047708, 1047710, 1042264, 1042265, 1042266, 1042274, 1042268, 1042269, 1042289, 1042272, 1042290, 1042291, 1042292, 1042293, 1042295, 1042297, 1047715, 1047706, 1047689, 1047700, 1048534, and more.