Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 40, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 17, 2021, 7:50 PM CDT for Goodhue County, Minnesota; Dunn County, Pepin County, Pierce County, Wisconsin. It was in force for 55 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 17, 2021, 7:50 PM CDT (00:50 UTC)
- Expired
- Jun 17, 2021, 8:45 PM CDT
- In force
- 55 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 2.0 in
- Wind
- 60.0 mph
Counties Goodhue County, MN, Dunn County, WI, Pepin County, WI, Pierce County, WI
The radar
The Minneapolis radar (KMPX), 113 km from the middle of the area, began a volume at 00:54 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 17, 7:58 PM CDT | HAIL 2 | Ellsworth, WI | |
| Jun 17, 8:07 PM CDT | HAIL 0.7 | Ellsworth, 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 |
|---|---|---|---|
| Jun 17, 7:22 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 0.8 hours before the alert went out and 115 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
- 61 J/kg
- Mixed-layer CIN
- -387 J/kg
- Mixed-layer LCL
- 1555 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- -13 m²/s²
- 0-3 km storm-relative helicity
- 56 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
138
WUUS53 KMPX 180050
SVRMPX
MNC049-WIC033-091-093-180145-
/O.NEW.KMPX.SV.W.0040.210618T0050Z-210618T0145Z/
BULLETIN - EAS ACTIVATION REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
750 PM CDT Thu Jun 17 2021
The National Weather Service in the Twin Cities has issued a
* Severe Thunderstorm Warning for...
Northeastern Goodhue County in southeastern Minnesota...
Pepin County in west central Wisconsin...
Pierce County in west central Wisconsin...
Southwestern Dunn County in west central Wisconsin...
* Until 845 PM CDT.
* At 750 PM CDT, severe thunderstorms were located along a line
extending from 6 miles east of Prescott to near Goodhue, moving
east at 50 mph.
HAZARD...Two inch hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect
wind damage to roofs, siding, and trees.
* Severe thunderstorms will be near...
Red Wing and Ellsworth around 800 PM CDT.
Stockholm around 815 PM CDT.
Pepin and Elmwood around 820 PM CDT.
Eau Galle around 825 PM CDT.
Menomonie around 830 PM CDT.
Other locations impacted by these severe thunderstorms include El
Paso, Wacouta, Martel, Esdaile, Beldenville, Arkansaw, Vasa,
Downsville, Weston and Porcupine.
This includes Treasure Island Casino.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
These storms are producing large hail. SEEK SHELTER NOW inside a
sturdy structure and stay away from windows!
&&
LAT...LON 4460 9185 4459 9197 4460 9200 4458 9203
4441 9209 4445 9224 4456 9234 4445 9278
4479 9272 4486 9230 4485 9216 4489 9214
4494 9182
TIME...MOT...LOC 0050Z 263DEG 45KT 4474 9265 4444 9270
HAIL...2.00IN
WIND...60MPH
$$
Borghoff3 follow-up statements
102
WWUS53 KMPX 180104
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
804 PM CDT Thu Jun 17 2021
MNC049-WIC033-091-093-180145-
/O.CON.KMPX.SV.W.0040.000000T0000Z-210618T0145Z/
Goodhue MN-Pepin WI-Pierce WI-Dunn WI-
804 PM CDT Thu Jun 17 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM CDT
FOR NORTHEASTERN GOODHUE...PEPIN...PIERCE AND SOUTHWESTERN DUNN
COUNTIES...
At 804 PM CDT, severe thunderstorms were located along a line
extending from near Ellsworth to 6 miles east of Goodhue, moving east
at 50 mph.
HAZARD...Ping pong ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect wind
damage to roofs, siding, and trees.
These severe storms will be near...
Elmwood, Plum City and Stockholm around 820 PM CDT.
Pepin around 825 PM CDT.
Durand and Eau Galle around 830 PM CDT.
Other locations impacted by these severe thunderstorms include El
Paso, Wacouta, Martel, Esdaile, Beldenville, Arkansaw, Vasa,
Downsville, Weston and Porcupine.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
These storms are producing large hail. SEEK SHELTER NOW inside a
sturdy structure and stay away from windows.
&&
LAT...LON 4460 9185 4459 9197 4460 9200 4458 9203
4441 9209 4445 9224 4456 9234 4445 9278
4479 9271 4486 9230 4485 9216 4489 9214
4494 9182
TIME...MOT...LOC 0104Z 267DEG 45KT 4472 9243 4440 9249
HAIL...1.50IN
WIND...60MPH
$$
Borghoff074
WWUS53 KMPX 180117
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
817 PM CDT Thu Jun 17 2021
MNC049-WIC033-091-093-180145-
/O.CON.KMPX.SV.W.0040.000000T0000Z-210618T0145Z/
Goodhue MN-Pepin WI-Pierce WI-Dunn WI-
817 PM CDT Thu Jun 17 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM CDT
FOR NORTHEASTERN GOODHUE...NORTHWESTERN PEPIN...PIERCE AND
SOUTHWESTERN DUNN COUNTIES...
At 817 PM CDT, severe thunderstorms were located along a line
extending from near Elmwood to 5 miles north of Frontenac, moving
east at 55 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
These severe storms will be near...
Menomonie, Durand and Eau Galle around 835 PM CDT.
Other locations impacted by these severe thunderstorms include El
Paso, Wacouta, Esdaile, Arkansaw, Vasa, Downsville, Weston,
Porcupine, Red Wing Airport and Menomonie Airport.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
These storms are producing large hail. SEEK SHELTER NOW inside a
sturdy structure and stay away from windows.
&&
LAT...LON 4460 9185 4459 9197 4460 9200 4458 9203
4450 9206 4450 9229 4456 9234 4445 9278
4457 9275 4467 9260 4481 9235 4485 9220
4485 9216 4486 9216 4487 9211 4494 9182
TIME...MOT...LOC 0117Z 254DEG 48KT 4476 9217 4457 9231
HAIL...1.25IN
WIND...60MPH
$$
Borghoff350
WWUS53 KMPX 180139
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
839 PM CDT Thu Jun 17 2021
MNC049-WIC033-091-093-180149-
/O.EXP.KMPX.SV.W.0040.000000T0000Z-210618T0145Z/
Goodhue MN-Pepin WI-Pierce WI-Dunn WI-
839 PM CDT Thu Jun 17 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN GOODHUE...
NORTHWESTERN PEPIN...PIERCE AND SOUTHWESTERN DUNN COUNTIES WILL
EXPIRE AT 845 PM CDT...
The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire.
A Severe Thunderstorm Watch remains in effect until 100 AM CDT for
southeastern Minnesota...and west central Wisconsin.
LAT...LON 4460 9185 4459 9197 4460 9200 4458 9203
4450 9206 4450 9229 4456 9234 4445 9278
4457 9275 4467 9260 4481 9235 4485 9220
4485 9216 4486 9216 4487 9211 4494 9182
TIME...MOT...LOC 0139Z 263DEG 45KT 4479 9179 4460 9193
$$
BorghoffThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 17, 7:02 PM CDT | Severe Thunderstorm Warning | MPX | Dakota, Goodhue, Rice | 58 min |
| Jun 17, 7:06 PM CDT | Severe Thunderstorm Warning | MPX | Carver, Scott, Sibley | 42 min |
| Jun 17, 7:41 PM CDT | Severe Thunderstorm Warning | MPX | Nicollet, Sibley | 26 min |
| Jun 17, 7:44 PM CDT | Severe Thunderstorm Warning | MPX | Goodhue | 32 min |
| Jun 17, 8:00 PM CDT | Severe Thunderstorm Warning | MPX | Dakota, Goodhue | 45 min |
| Jun 17, 8:28 PM CDT | Severe Thunderstorm Warning | MPX | Goodhue | 34 min |
| Jun 18, 3:21 AM CDT | Red Flag Warning | MPX | Anoka, Benton, Carver, Chippewa, Chisago, Douglas and 20 more | 16 hr |
| Jun 17, 8:34 PM CDT | Severe Thunderstorm Warning | MPX | Dunn, Eau Claire, Pepin | 56 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 2021Severe Thunderstorm Warnings in Minnesota, 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.