Alert archive / Wisconsin / Tornado Warnings in 2024
Tornado Warning 21, NWS Milwaukee, WI
NWS Milwaukee, WI issued this tornado warning at May 21, 2024, 7:10 PM CDT for Columbia County, Sauk County, Wisconsin. It was in force for 35 min. 1 report 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
- May 21, 2024, 7:10 PM CDT (00:10 UTC)
- Expired
- May 21, 2024, 7:45 PM CDT
- In force
- 35 min
- Issued by
- NWS Milwaukee, WI
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.0 in
Counties Columbia County, WI, Sauk County, WI
The radar
The Milwaukee radar (KMKX), 109 km from the middle of the area, began a volume at 00:10 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 |
|---|---|---|---|
| May 21, 7:28 PM CDT | TSTM WND DMG | 1 Nne Prairie Du Sac, WI | A swath of significant tree damage from the golf course northeast to a nearby subdivision. About a dozen large trees uprooted. Some trees snapped at various heights from the trunk. Many branches snapped off trees. |
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 |
|---|---|---|---|
| May 21, 3:58 PM CDT | Tornado Watch | SPC | 9 hr |
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 00:00Z, 0.2 hours before the alert went out and 182 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
- 442 J/kg
- Mixed-layer CIN
- -98 J/kg
- Mixed-layer LCL
- 1016 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 49 m²/s²
- 0-3 km storm-relative helicity
- 149 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
645
WFUS53 KMKX 220010
TORMKX
WIC021-111-220045-
/O.NEW.KMKX.TO.W.0021.240522T0010Z-240522T0045Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Milwaukee/Sullivan WI
710 PM CDT Tue May 21 2024
The National Weather Service in Milwaukee/Sullivan has issued a
* Tornado Warning for...
Southwestern Columbia County in south central Wisconsin...
Eastern Sauk County in south central Wisconsin...
* Until 745 PM CDT.
* At 710 PM CDT, a severe thunderstorm capable of producing a tornado
was located 7 miles northwest of Prairie Du Sac, moving northeast
at 60 mph.
HAZARD...Tornado and quarter size hail.
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...
Baraboo, Prairie Du Sac, Sauk City, Wisconsin Dells, Lake
Wisconsin, Lake Delton, West Baraboo, Bluffview, North Freedom,
Merrimac, Rock Springs, Harmony Grove, Interstate 90/94
Interchange, Okee, and Devils Lake St Park.
Other landmarks included are the following Locations Mirror Lake
State Park and Gibraltar Rock Natural Area County Park.
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 4362 8980 4346 8936 4329 8970 4329 8971
4328 8972 4319 8991 4320 8995 4341 9003
TIME...MOT...LOC 0010Z 218DEG 53KT 4334 8987
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
$$
BOXELL1 follow-up statement
546
WWUS53 KMKX 220034
SVSMKX
Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
734 PM CDT Tue May 21 2024
WIC021-111-220045-
/O.CON.KMKX.TO.W.0021.000000T0000Z-240522T0045Z/
Columbia WI-Sauk WI-
734 PM CDT Tue May 21 2024
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR
SOUTHWESTERN COLUMBIA AND EASTERN SAUK COUNTIES...
At 733 PM CDT, a severe thunderstorm capable of producing a tornado
was located 7 miles northwest of Portage, moving northeast at 60 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Baraboo, Prairie Du Sac, Sauk City, Wisconsin Dells, Lake Wisconsin,
Lake Delton, West Baraboo, Bluffview, North Freedom, Merrimac, Rock
Springs, Harmony Grove, Interstate 90/94 Interchange, Okee, and
Devils Lake St Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4362 8980 4346 8936 4329 8970 4329 8971
4328 8972 4319 8991 4328 8992 4351 8992
TIME...MOT...LOC 0033Z 218DEG 53KT 4362 8957
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
$$
BOXELLThe office that day
Everything else NWS Milwaukee, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 21, 7:04 PM CDT | Severe Thunderstorm Warning | MKX | Columbia, Dane, Green, Sauk | 56 min |
| May 21, 7:07 PM CDT | Tornado Warning | MKX | Dane, Iowa | 23 min |
| May 21, 7:18 PM CDT | Tornado Warning | MKX | Columbia, Dane, Iowa, Sauk | 42 min |
| May 21, 7:28 PM CDT | Tornado Warning | MKX | Columbia, Green Lake, Marquette, Sauk | 47 min |
| May 21, 7:41 PM CDT | Severe Thunderstorm Warning | MKX | Dane, Green, Iowa, Lafayette | 64 min |
| May 21, 7:47 PM CDT | Severe Thunderstorm Warning | MKX | Columbia, Dane, Green Lake, Marquette | 73 min |
| May 21, 7:51 PM CDT | Severe Thunderstorm Warning | MKX | Dane, Jefferson, Rock | 39 min |
| May 21, 7:52 PM CDT | Tornado Warning | MKX | Columbia, Dane, Dodge | 38 min |
| May 21, 7:56 PM CDT | Tornado Warning | MKX | Green, Lafayette | 34 min |
| May 21, 7:58 PM CDT | Tornado Warning | MKX | Dane | 32 min |
| May 21, 8:04 PM CDT | Severe Thunderstorm Warning | MKX | Columbia, Dane, Dodge, Fond du Lac, Green Lake, Marquette and 1 more | 56 min |
| May 21, 8:11 PM CDT | Tornado Warning | MKX | Fond du Lac, Green Lake, Marquette | 34 min |
| May 21, 8:18 PM CDT | Tornado Warning | MKX | Dodge, Fond du Lac | 42 min |
| May 21, 8:22 PM CDT | Severe Thunderstorm Warning | MKX | Iowa, Sauk | 38 min |
| May 21, 8:32 PM CDT | Severe Thunderstorm Warning | MKX | Dane, Dodge, Green, Jefferson, Rock, Waukesha | 71 min |
| May 21, 8:41 PM CDT | Tornado Warning | MKX | Fond du Lac | 34 min |
| May 21, 8:44 PM CDT | Severe Thunderstorm Warning | MKX | Dane, Green, Iowa, Lafayette | 46 min |
| May 21, 8:47 PM CDT | Severe Thunderstorm Warning | MKX | Rock, Walworth | 28 min |
| May 21, 8:52 PM CDT | Severe Thunderstorm Warning | MKX | Columbia, Green Lake, Marquette, Sauk | 23 min |
| May 21, 8:59 PM CDT | Severe Thunderstorm Warning | MKX | Columbia, Dodge, Fond du Lac, Sheboygan, Washington | 46 min |
| May 21, 9:00 PM CDT | Tornado Warning | MKX | Fond du Lac, Sheboygan | 30 min |
| May 21, 9:03 PM CDT | Severe Thunderstorm Warning | MKX | Fond du Lac | 27 min |
| May 21, 9:10 PM CDT | Gale Warning | MKX | 9 hr | |
| May 21, 9:10 PM CDT | Small Craft Advisory | MKX | 22 hr | |
| May 21, 9:11 PM CDT | Special Marine Warning | MKX | 2 hr | |
| May 21, 9:13 PM CDT | Severe Thunderstorm Warning | MKX | Jefferson, Waukesha | 32 min |
| May 21, 9:22 PM CDT | Severe Thunderstorm Warning | MKX | Fond du Lac, Sheboygan | 38 min |
| May 21, 9:28 PM CDT | Severe Thunderstorm Warning | MKX | Dane, Green | 47 min |
| May 21, 9:30 PM CDT | Special Weather Statement | MKX | Green | 30 min |
| May 21, 9:39 PM CDT | Severe Thunderstorm Warning | MKX | Columbia, Dane, Dodge | 36 min |
| May 21, 10:10 PM CDT | Severe Thunderstorm Warning | MKX | Green, Rock | 50 min |
| May 21, 10:14 PM CDT | Severe Thunderstorm Warning | MKX | Dane, Dodge, Jefferson | 46 min |
| May 21, 10:25 PM CDT | Severe Thunderstorm Warning | MKX | Dane, Dodge, Jefferson, Rock | 50 min |
| May 21, 10:40 PM CDT | Tornado Warning | MKX | Dane, Jefferson | 19 min |
| May 21, 10:45 PM CDT | Tornado Warning | MKX | Dane, Jefferson, Rock | 30 min |
| May 21, 10:48 PM CDT | Severe Thunderstorm Warning | MKX | Dane, Jefferson, Rock | 42 min |
| May 21, 11:32 PM CDT | Special Marine Warning | MKX | 118 min | |
| May 21, 11:33 PM CDT | Severe Thunderstorm Warning | MKX | Jefferson, Walworth, Waukesha | 42 min |
| May 21, 11:47 PM CDT | Severe Thunderstorm Warning | MKX | Racine, Walworth, Waukesha | 43 min |
| May 22, 12:10 AM CDT | Severe Thunderstorm Warning | MKX | Milwaukee, Ozaukee, Washington, Waukesha | 31 min |
| May 22, 12:28 AM CDT | Special Weather Statement | MKX | Milwaukee, Racine | 32 min |
| May 22, 11:35 AM CDT | River Flood Warning | MKX | Sauk | 69 hr |
| May 22, 5:10 PM CDT | Special Weather Statement | MKX | Iowa | 35 min |
| May 22, 5:46 PM CDT | Severe Thunderstorm Warning | MKX | Iowa, Sauk | 29 min |
| May 22, 6:14 PM CDT | Special Weather Statement | MKX | Iowa | 31 min |
Nearby
Tornado Warnings in Wisconsin, 2024Every tornado warning in 2024Tornadoes in 2024
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.