Alert archive / Wisconsin / Tornado Warnings in 2021
Tornado Warning 7, NWS Milwaukee, WI
NWS Milwaukee, WI issued this tornado warning at Jul 29, 2021, 1:36 AM CDT for Rock County, Wisconsin. It was in force for 24 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
- Jul 29, 2021, 1:36 AM CDT (06:36 UTC)
- Expired
- Jul 29, 2021, 2:00 AM CDT
- In force
- 24 min
- Issued by
- NWS Milwaukee, WI
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
County Rock County, WI
The radar
The Milwaukee radar (KMKX), 65 km from the middle of the area, began a volume at 06:39 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 29, 1:41 AM CDT | TSTM WND GST 68 | 5 Ese Footville, 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, 7:17 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 6.6 hours before the alert went out and 155 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
- 4022 J/kg
- Mixed-layer CIN
- -33 J/kg
- Mixed-layer LCL
- 1022 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 52 m²/s²
- 0-3 km storm-relative helicity
- 90 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 6.8
The text
As transmitted.
487
WFUS53 KMKX 290636
TORMKX
WIC105-290700-
/O.NEW.KMKX.TO.W.0007.210729T0636Z-210729T0700Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Milwaukee/Sullivan WI
136 AM CDT Thu Jul 29 2021
The National Weather Service in Milwaukee/Sullivan has issued a
* Tornado Warning for...
Southern Rock County in south central Wisconsin...
* Until 200 AM CDT.
* At 136 AM CDT, severe thunderstorms capable of producing both
tornadoes and extensive straight line wind damage were located
along a line extending from near Footville to near Brodhead, moving
southeast at 30 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...
Janesville, Beloit, South Beloit, Brodhead, Clinton, Orfordville,
Footville, Newark, Tiffany, Hanover, Afton, Shopiere, Avon,
Foxhollow and Leyden.
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.
This line of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.
&&
LAT...LON 4250 8936 4263 8937 4277 8911 4250 8877
4249 8878
TIME...MOT...LOC 0636Z 328DEG 27KT 4268 8912 4259 8931
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
WAGNER1 follow-up statement
468
WWUS53 KMKX 290654
SVSMKX
Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
154 AM CDT Thu Jul 29 2021
WIC105-290704-
/O.EXP.KMKX.TO.W.0007.000000T0000Z-210729T0700Z/
Rock WI-
154 AM CDT Thu Jul 29 2021
...THE TORNADO WARNING FOR SOUTHERN ROCK COUNTY WILL EXPIRE AT 200 AM
CDT...
The storms which prompted the warning have weakened below severe
limits, and no longer appear capable of producing a tornado.
Therefore, the warning will be allowed to expire. However gusty
winds are still possible with these thunderstorms.
A Severe Thunderstorm Watch remains in effect until 200 AM CDT for
south central and southeastern Wisconsin.
LAT...LON 4250 8936 4263 8937 4277 8911 4250 8877
4249 8878
TIME...MOT...LOC 0654Z 328DEG 27KT 4258 8903 4249 8922
$$
WAGNERThe office that day
Everything else NWS Milwaukee, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 28, 11:18 PM CDT | Severe Thunderstorm Warning | MKX | Fond du Lac, Green Lake, Marquette | 72 min |
| Jul 28, 11:41 PM CDT | Tornado Warning | MKX | Fond du Lac | 20 min |
| Jul 28, 11:48 PM CDT | Special Weather Statement | MKX | Sauk | 42 min |
| Jul 28, 11:55 PM CDT | Severe Thunderstorm Warning | MKX | Dodge, Washington | 65 min |
| Jul 29, 12:22 AM CDT | Severe Thunderstorm Warning | MKX | Columbia, Dane, Sauk | 53 min |
| Jul 29, 12:26 AM CDT | Tornado Warning | MKX | Columbia, Dodge | 31 min |
| Jul 29, 12:43 AM CDT | Tornado Warning | MKX | Columbia, Dane, Dodge, Jefferson | 32 min |
| Jul 29, 12:45 AM CDT | Severe Thunderstorm Warning | MKX | Dane, Jefferson | 45 min |
| Jul 29, 12:51 AM CDT | Severe Thunderstorm Warning | MKX | Dane, Iowa, Sauk | 39 min |
| Jul 29, 12:57 AM CDT | Severe Thunderstorm Warning | MKX | Dodge, Washington | 48 min |
| Jul 29, 1:07 AM CDT | Severe Thunderstorm Warning | MKX | Green, Lafayette | 38 min |
| Jul 29, 1:08 AM CDT | Tornado Warning | MKX | Jefferson, Waukesha | 37 min |
| Jul 29, 1:17 AM CDT | Severe Thunderstorm Warning | MKX | Dane, Jefferson, Kenosha, Milwaukee, Racine, Rock and 2 more | 67 min |
| Jul 29, 1:24 AM CDT | Special Marine Warning | MKX | 96 min | |
| Jul 29, 1:31 AM CDT | Tornado Warning | MKX | Milwaukee, Racine, Walworth, Waukesha | 44 min |
| Jul 29, 1:51 AM CDT | Special Weather Statement | MKX | Green, Lafayette | 24 min |
| Jul 29, 4:06 AM CDT | Small Craft Advisory | MKX | 33 hr | |
| Jul 29, 2:02 PM CDT | Beach Hazards Statement | MKX | Kenosha, Milwaukee, Ozaukee, Racine, Sheboygan | 29 hr |
Nearby
Tornado Warnings in Wisconsin, 2021Every tornado warning in 2021Tornadoes in 2021
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.