Alert archive / Minnesota / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 34, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 17, 2021, 6:38 PM CDT for Le Sueur County, Rice County, Scott County, Minnesota. It was in force for 52 min. 13 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, 6:38 PM CDT (23:38 UTC)
- Expired
- Jun 17, 2021, 7:30 PM CDT
- In force
- 52 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Le Sueur County, MN, Rice County, MN, Scott County, MN
The radar
The Minneapolis radar (KMPX), 32 km from the middle of the area, began a volume at 23:40 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, 6:40 PM CDT | HAIL 2 | 6 W Heidelberg, MN | HAIL WAS PHOTOGRAPHED AND MEASURED AT 2.2 INCHES. |
| Jun 17, 6:49 PM CDT | HAIL 1.75 | 1 S New Prague, MN | IMAGES/REPORT FROM TWITTER. |
| Jun 17, 6:59 PM CDT | HAIL 2.5 | Lonsdale, MN | GOLF BALL TO TENNIS BALL SIZED HAIL. |
| Jun 17, 7:02 PM CDT | HAIL 2.5 | Lonsdale, MN | VIA TWITTER. |
| Jun 17, 7:04 PM CDT | HAIL 1 | Elko New Market, MN | REPORT VIA TWITTER. |
| Jun 17, 7:05 PM CDT | HAIL 1.75 | 4 Ssw Elko New Market, MN | PICTURE ON SOCIAL MEDIA. TIME ESTIMATED FROM RADAR. |
| Jun 17, 7:08 PM CDT | HAIL 2.5 | Lonsdale, MN | PHONED IN REPORT. |
| Jun 17, 7:09 PM CDT | HAIL 2.5 | 3 Ssw Elko New Market, MN | GOLF TO TENNIS BALL SIZED HAIL REPORTS VIA TWITTER. |
| Jun 17, 7:10 PM CDT | HAIL 1 | 2 E Elko New Market, MN | |
| Jun 17, 7:10 PM CDT | HAIL 2.5 | 1 Sse Lonsdale, MN | CORRECTS TIME OF PREVIOUS HAIL REPORT FROM 1 SSE LONSDALE. HAIL AVERAGED 2 INCHES IN DIAMETER, WITH THE LARGEST BEING 2.5 INCHES. HAILED FOR THREE MINUTES. |
| Jun 17, 7:11 PM CDT | HAIL 1.75 | 5 E Lonsdale, MN | REPORTED AT WILLINGERS GOLF CLUB. |
| Jun 17, 7:36 PM CDT | HAIL 0.7 | 5 Wnw Elko New Market, MN | |
| Jun 17, 7:40 PM CDT | HAIL 1 | Elko New Market, MN | PICTURE ON SOCIAL MEDIA. TIME ESTIMATED FROM RADAR. |
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, 11.6 hours before the alert went out and 32 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
- 288 J/kg
- Mixed-layer CIN
- -583 J/kg
- Mixed-layer LCL
- 1902 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 108 m²/s²
- 0-3 km storm-relative helicity
- 223 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 4.0
The text
As transmitted.
586
WUUS53 KMPX 172338
SVRMPX
MNC079-131-139-180030-
/O.NEW.KMPX.SV.W.0034.210617T2338Z-210618T0030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
638 PM CDT Thu Jun 17 2021
The National Weather Service in the Twin Cities has issued a
* Severe Thunderstorm Warning for...
Northeastern Le Sueur County in south central Minnesota...
Southeastern Scott County in east central Minnesota...
Northwestern Rice County in south central Minnesota...
* Until 730 PM CDT.
* At 638 PM CDT, a severe thunderstorm was located 6 miles north of
Le Center, or 25 miles northeast of Mankato, moving east at 35 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.
* This severe thunderstorm will be near...
New Prague and Montgomery around 650 PM CDT.
Other locations in the path of this severe thunderstorm include
Lonsdale, Webster and Elko New Market.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4456 9385 4472 9333 4464 9332 4463 9328
4445 9328 4440 9382
TIME...MOT...LOC 2338Z 254DEG 28KT 4449 9374
HAIL...1.00IN
WIND...60MPH
$$
Borghoff4 follow-up statements
874
WWUS53 KMPX 172347
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
647 PM CDT Thu Jun 17 2021
MNC079-131-139-180030-
/O.CON.KMPX.SV.W.0034.000000T0000Z-210618T0030Z/
Le Sueur MN-Scott MN-Rice MN-
647 PM CDT Thu Jun 17 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT
FOR NORTHEASTERN LE SUEUR...SOUTHEASTERN SCOTT AND NORTHWESTERN RICE
COUNTIES...
At 647 PM CDT, a severe thunderstorm was located over New Prague, or
23 miles west of Northfield, moving east at 35 mph.
HAZARD...Golf ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect wind
damage to roofs, siding, and trees.
This severe storm will be near...
New Prague around 650 PM CDT.
Other locations in the path of this severe thunderstorm include
Lonsdale, Webster, Elko New Market and Lakeville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4459 9374 4472 9333 4464 9332 4463 9328
4445 9328 4443 9369
TIME...MOT...LOC 2347Z 248DEG 31KT 4454 9362
HAIL...1.75IN
WIND...60MPH
$$
Borghoff387
WWUS53 KMPX 172354
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
654 PM CDT Thu Jun 17 2021
MNC079-131-139-180030-
/O.CON.KMPX.SV.W.0034.000000T0000Z-210618T0030Z/
Le Sueur MN-Scott MN-Rice MN-
654 PM CDT Thu Jun 17 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT
FOR NORTHEASTERN LE SUEUR...SOUTHEASTERN SCOTT AND NORTHWESTERN RICE
COUNTIES...
At 654 PM CDT, a severe thunderstorm was located near New Prague, or
18 miles west of Northfield, moving east at 40 mph.
HAZARD...Golf ball size hail and 60 mph wind gusts.
SOURCE...Trained weather spotters.
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.
This severe storm will be near...
Webster and Elko New Market around 705 PM CDT.
Other locations in the path of this severe thunderstorm include
Lakeville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4461 9367 4472 9333 4464 9332 4463 9328
4445 9328 4443 9360
TIME...MOT...LOC 2354Z 253DEG 33KT 4455 9351
HAIL...1.75IN
WIND...60MPH
$$
Borghoff755
WWUS53 KMPX 180003
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
703 PM CDT Thu Jun 17 2021
MNC079-180013-
/O.CAN.KMPX.SV.W.0034.000000T0000Z-210618T0030Z/
Le Sueur MN-
703 PM CDT Thu Jun 17 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN LE SUEUR COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 4444 9347 4462 9351 4466 9332 4464 9332
4463 9328 4445 9328 4444 9340
TIME...MOT...LOC 0003Z 260DEG 29KT 4455 9339
$$
MNC131-139-180030-
/O.CON.KMPX.SV.W.0034.000000T0000Z-210618T0030Z/
Scott MN-Rice MN-
703 PM CDT Thu Jun 17 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT
FOR SOUTHEASTERN SCOTT AND NORTHWESTERN RICE COUNTIES...
At 703 PM CDT, a severe thunderstorm was located over Webster, or 12
miles northwest of Northfield, moving east at 35 mph.
HAZARD...Tennis ball size hail and 60 mph wind gusts.
SOURCE...Trained weather spotters.
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.
This severe thunderstorm will remain over mainly rural areas of
southeastern Scott and northwestern Rice Counties, including the
following locations... Veseli.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This is a dangerous storm. Prepare immediately for large destructive
hail capable of producing significant damage. People outside should
move to a shelter, inside a strong building and away from windows.
&&
LAT...LON 4444 9347 4462 9351 4466 9332 4464 9332
4463 9328 4445 9328 4444 9340
TIME...MOT...LOC 0003Z 260DEG 29KT 4455 9339
HAIL...2.50IN
WIND...60MPH
$$
Borghoff312
WWUS53 KMPX 180019
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
719 PM CDT Thu Jun 17 2021
MNC131-180028-
/O.CAN.KMPX.SV.W.0034.000000T0000Z-210618T0030Z/
Rice MN-
719 PM CDT Thu Jun 17 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN RICE COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 100 AM CDT for
south central and east central Minnesota.
LAT...LON 4464 9342 4466 9332 4464 9332 4463 9328
4455 9328 4454 9337
TIME...MOT...LOC 0018Z 249DEG 25KT 4459 9328
$$
MNC139-180030-
/O.CON.KMPX.SV.W.0034.000000T0000Z-210618T0030Z/
Scott MN-
719 PM CDT Thu Jun 17 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT
FOR SOUTHEASTERN SCOTT COUNTY...
At 718 PM CDT, a severe thunderstorm was located near Elko New
Market, or 11 miles northwest of Northfield, moving east at 30 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.
This severe storm will be near...
Lakeville around 725 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This storm is producing large hail. SEEK SHELTER NOW inside a sturdy
structure and stay away from windows.
&&
LAT...LON 4464 9342 4466 9332 4464 9332 4463 9328
4455 9328 4454 9337
TIME...MOT...LOC 0018Z 249DEG 25KT 4459 9328
HAIL...1.00IN
WIND...60MPH
$$
BorghoffThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 17, 2:58 AM CDT | Special Weather Statement | MPX | Freeborn | 32 min |
| Jun 17, 3:54 PM CDT | Fire Weather Watch | MPX | Anoka, Benton, Carver, Chippewa, Chisago, Douglas and 20 more | 11 hr |
Nearby
Severe 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.