Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 31, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 11, 2021, 12:39 PM CDT for Chippewa County, Dunn County, Wisconsin. It was in force for 51 min. 2 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
- Jun 11, 2021, 12:39 PM CDT (17:39 UTC)
- Expired
- Jun 11, 2021, 1:30 PM CDT
- In force
- 51 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Chippewa County, WI, Dunn County, WI
The radar
The La Crosse radar (KARX), 126 km from the middle of the area, began a volume at 17:42 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 |
|---|---|---|---|
| Jun 11, 12:45 PM CDT | TSTM WND DMG | 1 Ssw Menomonie, WI | 3-4 FT DIAMETER TREE UPROOTED. TIME ESTIMATED VIA RADAR. |
| Jun 11, 12:50 PM CDT | TSTM WND DMG | 1 Sw Menomonie, WI | SCATTERED TREES AND POWER LINES DOWN IN AND SOUTH OF MENOMONIE PER DISPATCH. A STREET LIGHT WAS ALSO DOWN. ONE TREE WAS UPROOTED AND AGAINST AN APARTMENT BUILDING NEAR THE HIGH SCHOOL PER WQOW-TV. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 5.7 hours before the alert went out and 149 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
- 752 J/kg
- Mixed-layer CIN
- -207 J/kg
- Mixed-layer LCL
- 1602 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- -28 m²/s²
- 0-3 km storm-relative helicity
- -40 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
106
WUUS53 KMPX 111739
SVRMPX
WIC017-033-111830-
/O.NEW.KMPX.SV.W.0031.210611T1739Z-210611T1830Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
1239 PM CDT Fri Jun 11 2021
The National Weather Service in the Twin Cities has issued a
* Severe Thunderstorm Warning for...
Central Dunn County in west central Wisconsin...
Southwestern Chippewa County in west central Wisconsin...
* Until 130 PM CDT.
* At 1238 PM CDT, a severe thunderstorm was located near Menomonie,
moving northeast at 35 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Trained weather spotters.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Elk Mound, Colfax and Chippewa Falls.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for large hail and damaging winds. People outside
should move immediately to shelter inside a strong building. Stay
away from windows.
&&
LAT...LON 4486 9162 4486 9165 4484 9165 4474 9188
4489 9215 4514 9166 4495 9141
TIME...MOT...LOC 1738Z 237DEG 30KT 4484 9194
HAIL...1.00IN
WIND...60MPH
$$
ETA2 follow-up statements
123
WWUS53 KMPX 111813
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
113 PM CDT Fri Jun 11 2021
WIC017-033-111830-
/O.CON.KMPX.SV.W.0031.000000T0000Z-210611T1830Z/
Dunn WI-Chippewa WI-
113 PM CDT Fri Jun 11 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 PM CDT
FOR EAST CENTRAL DUNN AND WEST CENTRAL CHIPPEWA COUNTIES...
At 112 PM CDT, a severe thunderstorm was located 6 miles east of
Colfax, or 12 miles northwest of Eau Claire, moving northeast at 35
mph.
HAZARD...60 mph wind gusts.
SOURCE...Law enforcement.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Menomonie, Colfax, Hoffman Hills Rec Area and Tainter Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4493 9162 4491 9170 4491 9179 4503 9188
4514 9166 4499 9146
TIME...MOT...LOC 1812Z 237DEG 30KT 4500 9160
HAIL...<.75IN
WIND...60MPH
$$
ETA721
WWUS53 KMPX 111821
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
121 PM CDT Fri Jun 11 2021
WIC017-033-111831-
/O.EXP.KMPX.SV.W.0031.000000T0000Z-210611T1830Z/
Dunn WI-Chippewa WI-
121 PM CDT Fri Jun 11 2021
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL DUNN AND WEST
CENTRAL CHIPPEWA COUNTIES WILL EXPIRE AT 130 PM CDT...
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 will be allowed to expire.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
the Twin Cities.
LAT...LON 4493 9162 4491 9170 4491 9179 4503 9188
4514 9166 4499 9146
TIME...MOT...LOC 1821Z 237DEG 30KT 4504 9152
$$
ETAThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 10, 8:08 PM CDT | Special Weather Statement | MPX | Chippewa, Rusk | 82 min |
| Jun 11, 11:41 AM CDT | Severe Thunderstorm Warning | MPX | Pierce | 34 min |
| Jun 11, 12:07 PM CDT | Severe Thunderstorm Warning | MPX | Dunn, Pepin, Pierce | 38 min |
| Jun 11, 1:20 PM CDT | Special Weather Statement | MPX | Chippewa | 40 min |
| Jun 11, 1:57 PM CDT | Special Weather Statement | MPX | Chippewa | 33 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.