Alert archive / Wisconsin / Tornado Warnings in 2023
Tornado Warning 13, NWS Milwaukee, WI
NWS Milwaukee, WI issued this tornado warning at Jul 28, 2023, 10:33 PM CDT for Racine County, Walworth County, Waukesha County, Wisconsin. It was in force for 27 min. 3 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 28, 2023, 10:33 PM CDT (03:33 UTC)
- Expired
- Jul 28, 2023, 11:00 PM CDT
- In force
- 27 min
- Issued by
- NWS Milwaukee, WI
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Racine County, WI, Walworth County, WI, Waukesha County, WI
The radar
The Milwaukee radar (KMKX), 17 km from the middle of the area, began a volume at 03:33 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 28, 10:42 PM CDT | TSTM WND GST 75 | 2 E Potter Lake, WI | Delayed report. Damage relayed by Walworth County EM of a barn/outbuilding that lost a portion of its sheet metal roof. All of the debris appears to be blown downward, indicated straight line/downburst winds to be the most likely cause. |
| Jul 28, 10:55 PM CDT | TSTM WND GST 58 | 2 Ssw Potter Lake, WI | AWOS station K57C East Troy. |
| Jul 28, 11:00 PM CDT | TSTM WND GST 60 | 1.5 N Muskego, WI |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
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 28, 6:27 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 00:00Z, 3.6 hours before the alert went out and 180 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
- 220 J/kg
- Mixed-layer CIN
- -180 J/kg
- Mixed-layer LCL
- 1052 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- -41 m²/s²
- 0-3 km storm-relative helicity
- 40 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -1.2
The text
As transmitted.
142
WFUS53 KMKX 290333
TORMKX
WIC101-127-133-290400-
/O.NEW.KMKX.TO.W.0013.230729T0333Z-230729T0400Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Milwaukee/Sullivan WI
1033 PM CDT Fri Jul 28 2023
The National Weather Service in Milwaukee/Sullivan has issued a
* Tornado Warning for...
Northeastern Walworth County in southeastern Wisconsin...
Northwestern Racine County in southeastern Wisconsin...
Southern Waukesha County in southeastern Wisconsin...
* Until 1100 PM CDT.
* At 1033 PM CDT, a severe thunderstorm capable of producing a
tornado was located near Palmyra, or 7 miles northwest of East
Troy, moving east at 55 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* Locations impacted include...
New Berlin, Muskego, Mukwonago, East Troy, Wind Lake, Vernon, North
Prairie, Big Bend, Waterford North, Potter Lake, Waterford, Eagle,
and Genesee.
People attending The Cowalunga Bike Tour should seek safe shelter
immediately!
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4284 8854 4291 8854 4295 8853 4296 8808
4272 8808
TIME...MOT...LOC 0333Z 284DEG 50KT 4288 8848
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
DDV2 follow-up statements
432
WWUS53 KMKX 290346
SVSMKX
Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
1046 PM CDT Fri Jul 28 2023
WIC101-127-133-290400-
/O.CON.KMKX.TO.W.0013.000000T0000Z-230729T0400Z/
Walworth WI-Racine WI-Waukesha WI-
1046 PM CDT Fri Jul 28 2023
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1100 PM CDT FOR
NORTHEASTERN WALWORTH...NORTHWESTERN RACINE AND SOUTHEASTERN WAUKESHA
COUNTIES...
At 1046 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Waterford North, or near Wind Lake, moving east at
60 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
New Berlin, Muskego, Mukwonago, East Troy, Wind Lake, Vernon, Big
Bend, Waterford North, Potter Lake, and Waterford.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4280 8838 4290 8838 4295 8836 4296 8808
4272 8808
TIME...MOT...LOC 0346Z 284DEG 50KT 4284 8824
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
DDV676
WWUS53 KMKX 290402
SVSMKX
Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
1102 PM CDT Fri Jul 28 2023
WIC101-127-133-290412-
/O.EXP.KMKX.TO.W.0013.000000T0000Z-230729T0400Z/
Walworth WI-Racine WI-Waukesha WI-
1102 PM CDT Fri Jul 28 2023
...THE TORNADO WARNING FOR NORTHEASTERN WALWORTH...NORTHWESTERN
RACINE AND SOUTHEASTERN WAUKESHA COUNTIES HAS EXPIRED...
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been allowed to expire.
A Severe Thunderstorm Watch remains in effect until midnight CDT for
southeastern Wisconsin.
LAT...LON 4280 8838 4290 8838 4295 8836 4296 8808
4272 8808
TIME...MOT...LOC 0402Z 284DEG 50KT 4279 8797
$$
DDVThe office that day
Everything else NWS Milwaukee, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 28, 7:03 PM CDT | Severe Thunderstorm Warning | MKX | Iowa, Lafayette | 57 min |
| Jul 28, 7:10 PM CDT | Tornado Warning | MKX | Lafayette | 35 min |
| Jul 28, 7:39 PM CDT | Severe Thunderstorm Warning | MKX | Lafayette | 51 min |
| Jul 28, 7:41 PM CDT | Tornado Warning | MKX | Lafayette | 20 min |
| Jul 28, 7:58 PM CDT | Severe Thunderstorm Warning | MKX | Racine, Walworth, Waukesha | 47 min |
| Jul 28, 8:14 PM CDT | Severe Thunderstorm Warning | MKX | Walworth | 41 min |
| Jul 28, 8:17 PM CDT | Severe Thunderstorm Warning | MKX | Rock | 22 min |
| Jul 28, 8:17 PM CDT | Severe Thunderstorm Warning | MKX | Sauk | 43 min |
| Jul 28, 8:37 PM CDT | Severe Thunderstorm Warning | MKX | Racine | 38 min |
| Jul 28, 8:38 PM CDT | Severe Thunderstorm Warning | MKX | Columbia, Marquette, Sauk | 67 min |
| Jul 28, 8:49 PM CDT | Flash Flood Warning | MKX | Green, Iowa, Lafayette | 4 hr |
| Jul 28, 8:58 PM CDT | Tornado Warning | MKX | Columbia, Sauk | 26 min |
| Jul 28, 9:01 PM CDT | Special Marine Warning | MKX | 59 min | |
| Jul 28, 9:21 PM CDT | Severe Thunderstorm Warning | MKX | Columbia, Dodge, Fond du Lac, Green Lake | 54 min |
| Jul 28, 9:27 PM CDT | Severe Thunderstorm Warning | MKX | Dane, Iowa, Jefferson | 63 min |
| Jul 28, 9:28 PM CDT | Special Marine Warning | MKX | 47 min | |
| Jul 28, 9:39 PM CDT | Special Marine Warning | MKX | 96 min | |
| Jul 28, 9:44 PM CDT | Tornado Warning | MKX | Columbia, Dane, Dodge, Jefferson | 46 min |
| Jul 28, 9:59 PM CDT | Severe Thunderstorm Warning | MKX | Dane, Green, Jefferson, Rock, Walworth, Waukesha | 61 min |
| Jul 28, 10:04 PM CDT | Special Marine Warning | MKX | 56 min | |
| Jul 28, 10:04 PM CDT | Severe Thunderstorm Warning | MKX | Dodge, Fond du Lac, Washington | 56 min |
| Jul 28, 10:25 PM CDT | Flash Flood Warning | MKX | Dane | 2 hr |
| Jul 28, 10:26 PM CDT | Severe Thunderstorm Warning | MKX | Milwaukee, Ozaukee, Washington, Waukesha | 49 min |
| Jul 28, 10:29 PM CDT | Special Marine Warning | MKX | 2 hr | |
| Jul 28, 10:39 PM CDT | Severe Thunderstorm Warning | MKX | Kenosha, Racine, Walworth | 51 min |
Nearby
Tornado Warnings in Wisconsin, 2023Every tornado warning in 2023Tornadoes in 2023
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.