Alert archive / Minnesota / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 138, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Dec 15, 2021, 6:40 PM CST for Faribault County, Freeborn County, Minnesota. It was in force for 50 min. 12 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
- Dec 15, 2021, 6:40 PM CST (00:40 UTC)
- Expired
- Dec 15, 2021, 7:30 PM CST
- In force
- 50 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Faribault County, MN, Freeborn County, MN
The radar
The Minneapolis radar (KMPX), 128 km from the middle of the area, began a volume at 00:43 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 |
|---|---|---|---|
| Dec 15, 6:59 PM CST | TSTM WND DMG | 1 Sse Alden, MN | POWER POLES DOWN WITH TIME ESTIMATED BASED ON RADAR. |
| Dec 15, 6:59 PM CST | TORNADO | 2 Ene Walters, MN | A NWS DAMAGE SURVEY FOUND A PRELIMINARY EF-1 TORNADO TRACK SW OF ALDEN, MN. |
| Dec 15, 7:00 PM CST | TSTM WND DMG | Conger, MN | REPORT OF TREES DOWN IN THE CONGER AREA. |
| Dec 15, 7:00 PM CST | TSTM WND GST 60 | 4 Ssw Conger, MN | |
| Dec 15, 7:03 PM CST | TORNADO | 2 E Alden, MN | NWS DAMAGE SURVEY FOUND A PRELIMINARY EF-1 TORNADO TRACK JUST EAST OF ALDEN, MN. |
| Dec 15, 7:09 PM CST | TSTM WND DMG | Hartland, MN | HEAVY DAMAGE TO A BANK AND SEVERAL HOMES. TIME ESTIMATED VIA RADAR. POSSIBLE TORNADO. |
| Dec 15, 7:10 PM CST | TSTM WND DMG | 5 Ese Hollandale, MN | 7 MATURE TREES DOWN (4 PINE, 3 POPLAR) ON A 20 ACRE PROPERTY. |
| Dec 15, 7:10 PM CST | TORNADO | Hartland, MN | NWS DAMAGE SURVEY FOUND A PRELIMINARY EF-2 TORNADO TRACK IN HARTLAND, MN. |
| Dec 15, 7:12 PM CST | TORNADO | 3 Ssw Glenville, MN | A BRIEF TORNADO OCCURRED SOUTH OF GLENVILLE. IT SPUN UP AROUND 782ND AVE AND TRACKED NORTHEAST 2.7 MILES PRODUCING SOME TREE DAMAGE UNTIL IT REACHED 795TH AVE. THERE, IT DAMAGED FARM BUILDINGS AND TOSSED HAY BALES ACROSS THE ROAD. MAX WIND 80 MPH, 100 YARDS MA |
| Dec 15, 7:13 PM CST | TORNADO | 2 Ssw London, MN | EF-1 TORNADO MOVED 4.5 MILES TO THE NORTH WITH A LARGE MACHINE SHED DESTROYED. |
| Dec 15, 7:15 PM CST | TORNADO | 3 S Hayward, MN | EF-0 TORNADO TRACKED 4 MILES TO THE NORTHEAST WITH SEVERAL ROOFS PARTIALLY BLOWN OFF. |
| Dec 15, 7:16 PM CST | TORNADO | 3 N Myrtle, MN | EF-1 TORNADO TRACKED 4 MILES TO THE NNE WITH SEVERAL OUTBUILDINGS DESTROYED. |
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 |
|---|---|---|---|
| Dec 15, 1:23 PM CST | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 0.7 hours before the alert went out and 128 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
- 633 J/kg
- Mixed-layer CIN
- -55 J/kg
- Mixed-layer LCL
- 770 m above ground
- 0-6 km bulk shear
- 75 kt
- 0-1 km storm-relative helicity
- 443 m²/s²
- 0-3 km storm-relative helicity
- 470 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 5.7
The text
As transmitted.
564 WUUS53 KMPX 160040 SVRMPX MNC043-047-160130- /O.NEW.KMPX.SV.W.0138.211216T0040Z-211216T0130Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Twin Cities/Chanhassen MN 640 PM CST Wed Dec 15 2021 The National Weather Service in the Twin Cities has issued a * Severe Thunderstorm Warning for... Freeborn County in south central Minnesota... Faribault County in south central Minnesota... * Until 730 PM CST. * At 640 PM CST, severe thunderstorms were located along a line extending from near Amboy to 7 miles south of Bricelyn to Eagle Lake, moving northeast at 55 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Severe thunderstorms will be near... Bricelyn around 645 PM CST. Mansfield around 655 PM CST. Alden, Emmons and Conger around 700 PM CST. Other locations in the path of these severe thunderstorms include Twin Lakes, Albert Lea, Clarks Grove, Hayward and Hollandale. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Tornado Watch remains in effect until 800 PM CST for south central Minnesota. For your protection move to an interior room on the lowest floor of a building. A Tornado Watch remains in effect until 800 PM CST for south central Minnesota. && LAT...LON 4384 9424 4385 9305 4350 9305 4350 9397 TIME...MOT...LOC 0040Z 240DEG 49KT 4390 9422 4346 9387 4311 9370 TORNADO...POSSIBLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$
3 follow-up statements
022 WWUS53 KMPX 160059 SVSMPX Severe Weather Statement National Weather Service Twin Cities/Chanhassen MN 659 PM CST Wed Dec 15 2021 MNC043-047-160130- /O.CON.KMPX.SV.W.0138.000000T0000Z-211216T0130Z/ Freeborn MN-Faribault MN- 659 PM CST Wed Dec 15 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CST FOR FREEBORN AND EASTERN FARIBAULT COUNTIES... At 658 PM CST, severe thunderstorms were located along a line extending from 5 miles east of Good Thunder to Mansfield to 5 miles southwest of Northwood, moving northeast at 55 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Twin Lakes, Albert Lea, Clarks Grove, London, Hayward, Geneva and Hollandale. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Tornado Watch remains in effect until 800 PM CST for south central Minnesota. For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4385 9305 4350 9305 4350 9384 4384 9406 TIME...MOT...LOC 0058Z 239DEG 50KT 4401 9396 4358 9358 4340 9332 TORNADO...POSSIBLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$
205
WWUS53 KMPX 160113
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
713 PM CST Wed Dec 15 2021
MNC043-160122-
/O.CAN.KMPX.SV.W.0138.000000T0000Z-211216T0130Z/
Faribault MN-
713 PM CST Wed Dec 15 2021
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN FARIBAULT COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 800 PM CST for south central
Minnesota.
LAT...LON 4384 9365 4385 9305 4350 9305 4350 9354
4360 9364
TIME...MOT...LOC 0112Z 240DEG 49KT 4409 9376 4366 9338 4348 9312
$$
MNC047-160130-
/O.CON.KMPX.SV.W.0138.000000T0000Z-211216T0130Z/
Freeborn MN-
713 PM CST Wed Dec 15 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CST
FOR FREEBORN COUNTY...
At 712 PM CST, severe thunderstorms were located along a line
extending from near Janesville to Albert Lea to 5 miles northeast of
Northwood, moving northeast at 55 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Albert Lea, Clarks Grove, Alden, Glenville, Geneva, Emmons, Hartland,
London, Hollandale, Freeborn, Hayward and Mansfield.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 800 PM CST for south central
Minnesota.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4384 9365 4385 9305 4350 9305 4350 9354
4360 9364
TIME...MOT...LOC 0112Z 240DEG 49KT 4409 9376 4366 9338 4348 9312
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$269
WWUS53 KMPX 160124
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
724 PM CST Wed Dec 15 2021
MNC047-160134-
/O.EXP.KMPX.SV.W.0138.000000T0000Z-211216T0130Z/
Freeborn MN-
724 PM CST Wed Dec 15 2021
...THE SEVERE THUNDERSTORM WARNING FOR FREEBORN COUNTY WILL EXPIRE AT
730 PM CST...
The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire. However gusty
winds are still possible with these thunderstorms.
A Tornado Watch remains in effect until 800 PM CST for south central
Minnesota.
LAT...LON 4384 9365 4385 9305 4350 9305 4350 9354
4360 9364
TIME...MOT...LOC 0124Z 240DEG 49KT 4417 9357 4374 9320 4356 9294
$$The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 15, 6:55 PM CST | Tornado Warning | MPX | Faribault, Freeborn | 35 min |
| Dec 15, 7:07 PM CST | Severe Thunderstorm Warning | MPX | Blue Earth, Le Sueur, Waseca | 38 min |
| Dec 15, 7:18 PM CST | Severe Thunderstorm Warning | MPX | Rice, Steele | 42 min |
| Dec 15, 7:48 PM CST | Severe Thunderstorm Warning | MPX | Dakota, Goodhue, Rice | 30 min |
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.