Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 2, NWS Milwaukee, WI
NWS Milwaukee, WI issued this severe thunderstorm warning at Jun 11, 2021, 4:33 PM CDT for Dane County, Dodge County, Jefferson County, Wisconsin. It was in force for 14 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 11, 2021, 4:33 PM CDT (21:33 UTC)
- Expired
- Jun 11, 2021, 4:47 PM CDT
- In force
- 14 min
- Issued by
- NWS Milwaukee, WI
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Dane County, WI, Dodge County, WI, Jefferson County, WI
The radar
The Milwaukee radar (KMKX), 38 km from the middle of the area, began a volume at 21:35 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.
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 9.6 hours before the alert went out and 164 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1468 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 6 m²/s²
- 0-3 km storm-relative helicity
- 75 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
177
WUUS53 KMKX 112133
SVRMKX
WIC025-027-055-112215-
/O.NEW.KMKX.SV.W.0002.210611T2133Z-210611T2215Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Milwaukee/Sullivan WI
433 PM CDT Fri Jun 11 2021
The National Weather Service in Milwaukee/Sullivan has issued a
* Severe Thunderstorm Warning for...
East central Dane County in south central Wisconsin...
Northwestern Jefferson County in southeastern Wisconsin...
Southwestern Dodge County in southeastern Wisconsin...
* Until 515 PM CDT.
* At 432 PM CDT, a severe thunderstorm was located near Waterloo,
moving south at 20 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Lake Mills, Waterloo, Cambridge, Lake Ripley and Hubbleton.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4325 8899 4323 8884 4298 8888 4301 8908
TIME...MOT...LOC 2132Z 009DEG 17KT 4317 8892
HAIL...1.00IN
WIND...60MPH
$$
HANSEN1 follow-up statement
351
WWUS53 KMKX 112147
SVSMKX
Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
447 PM CDT Fri Jun 11 2021
WIC025-027-055-112157-
/O.CAN.KMKX.SV.W.0002.000000T0000Z-210611T2215Z/
Dane WI-Jefferson WI-Dodge WI-
447 PM CDT Fri Jun 11 2021
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL DANE...
NORTHWESTERN JEFFERSON AND SOUTHWESTERN DODGE COUNTIES IS
CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled. However small hail and
gusty winds are still possible with this thunderstorm.
LAT...LON 4325 8899 4323 8884 4298 8888 4301 8908
TIME...MOT...LOC 2145Z 009DEG 17KT 4310 8894
$$
HANSENThe office that day
Everything else NWS Milwaukee, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 12:25 PM CDT | Special Weather Statement | MKX | Rock | 50 min |
| Jun 11, 1:00 PM CDT | Special Weather Statement | MKX | Rock | 45 min |
| Jun 11, 2:36 PM CDT | Special Weather Statement | MKX | Sauk | 54 min |
| Jun 11, 2:50 PM CDT | Special Weather Statement | MKX | Green | 55 min |
| Jun 11, 3:06 PM CDT | Severe Thunderstorm Warning | MKX | Columbia, Dane, Sauk | 24 min |
| Jun 11, 3:24 PM CDT | Special Weather Statement | MKX | Lafayette | 51 min |
| Jun 11, 3:49 PM CDT | Special Weather Statement | MKX | Marquette | 56 min |
| Jun 11, 4:13 PM CDT | Special Weather Statement | MKX | Columbia, Dane, Marquette | 62 min |
| Jun 11, 4:54 PM CDT | Special Weather Statement | MKX | Waukesha | 51 min |
| Jun 11, 5:05 PM CDT | Special Weather Statement | MKX | Dodge, Jefferson, Waukesha | 40 min |
| Jun 11, 5:55 PM CDT | Special Weather Statement | MKX | Jefferson, Walworth, Waukesha | 65 min |
| Jun 11, 6:46 PM CDT | Special Weather Statement | MKX | Milwaukee, Racine | 29 min |
| Jun 11, 6:48 PM CDT | Special Marine Warning | MKX | 57 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 2021Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.