Alert archive / Minnesota / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 56, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 11, 2020, 3:32 PM CDT for 5 counties in Minnesota. It was in force for 43 min. 6 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
- Jul 11, 2020, 3:32 PM CDT (20:32 UTC)
- Expired
- Jul 11, 2020, 4:15 PM CDT
- In force
- 43 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 1.0 in
- Wind
- 70.0 mph
Counties Blue Earth County, MN, Faribault County, MN, Freeborn County, MN, Steele County, MN, Waseca County, MN
The radar
The Minneapolis radar (KMPX), 88 km from the middle of the area, began a volume at 20:32 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 |
|---|---|---|---|
| Jul 11, 3:40 PM CDT | TSTM WND DMG | 3 Ese Madison Lake, MN | TREES DOWN AND CORN BLOWN OVER. REPORTED VIA TWITTER. PHOTOS INCLUDED. TIME ESTIMATED. |
| Jul 11, 3:40 PM CDT | TSTM WND DMG | Madison Lake, MN | NUMEROUS TREES DOWN. ALSO, SEVERAL TREES DOWN NORTH OF TOWN NEAR DUCK LAKE, SOME BLOCKING CO RD. 26. TIME ESTIMATED. |
| Jul 11, 3:40 PM CDT | TSTM WND DMG | Smiths Mill, MN | SEVERAL LARGE TREE LIMBS DOWN. REPORTED VIA TWITTER. TIME ESTIMATED. |
| Jul 11, 3:45 PM CDT | TSTM WND DMG | Janesville, MN | LARGE TREE SNAPPED. REPORTED VIA FACEBOOK. PHOTO INCLUDED. TIME ESTIMATED. |
| Jul 11, 4:15 PM CDT | TSTM WND GST 44 | 3 Wsw Waseca, MN | AWOS STATION KACQ WASECA AIRPORT. |
| Jul 11, 4:18 PM CDT | TSTM WND GST 52 | 1 S Lemond, MN | RELAYED THROUGH COUNTY WARNING POINT. |
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 |
|---|---|---|---|
| Jul 11, 1:10 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 8.5 hours before the alert went out and 88 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
- 52 J/kg
- Mixed-layer CIN
- -178 J/kg
- Mixed-layer LCL
- 1331 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 47 m²/s²
- 0-3 km storm-relative helicity
- 69 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted.
882
WUUS53 KMPX 112032
SVRMPX
MNC013-043-047-147-161-112115-
/O.NEW.KMPX.SV.W.0056.200711T2032Z-200711T2115Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
332 PM CDT Sat Jul 11 2020
The National Weather Service in The Twin Cities has issued a
* Severe Thunderstorm Warning for...
Northwestern Freeborn County in south central Minnesota...
Northeastern Faribault County in south central Minnesota...
Northwestern Steele County in south central Minnesota...
Southeastern Blue Earth County in south central Minnesota...
Waseca County in south central Minnesota...
* Until 415 PM CDT.
* At 332 PM CDT, a severe thunderstorm was located near St. Clair, or
12 miles southeast of Mankato, moving southeast at 55 mph.
HAZARD...70 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect considerable
tree damage. Wind damage is also likely to mobile homes,
roofs, and outbuildings.
* Locations impacted include...
Mankato, Owatonna, Waseca, Eagle Lake, Wells, Janesville, Mapleton,
New Richland, Madison Lake, St. Clair, Minnesota Lake and Elysian.
This includes the following highways...
Interstate 35 between mile markers 37 and 44.
U.S. Highway 14 between mile markers 138 and 175.
U.S. Highway 169 between mile markers 32 and 33.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in The Twin Cities.
&&
LAT...LON 4394 9419 4424 9379 4423 9377 4420 9376
4420 9348 4410 9316 4367 9361
TIME...MOT...LOC 2032Z 305DEG 47KT 4406 9379
TORNADO...POSSIBLE
HAIL...1.00IN
WIND...70MPH
$$
CTG1 follow-up statement
034
WWUS53 KMPX 112101
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
401 PM CDT Sat Jul 11 2020
MNC013-112110-
/O.CAN.KMPX.SV.W.0056.000000T0000Z-200711T2115Z/
Blue Earth MN-
401 PM CDT Sat Jul 11 2020
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN BLUE EARTH COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 800 PM CDT for
south central Minnesota.
LAT...LON 4384 9398 4385 9377 4411 9377 4418 9371
4407 9319 4367 9361
TIME...MOT...LOC 2100Z 305DEG 47KT 4385 9337
$$
MNC043-047-147-161-112115-
/O.CON.KMPX.SV.W.0056.000000T0000Z-200711T2115Z/
Freeborn MN-Faribault MN-Steele MN-Waseca MN-
401 PM CDT Sat Jul 11 2020
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM CDT
FOR NORTHWESTERN FREEBORN...NORTHEASTERN FARIBAULT...WEST CENTRAL
STEELE AND WASECA COUNTIES...
At 400 PM CDT, a severe thunderstorm was located near Ellendale, or
13 miles north of Albert Lea, moving southeast at 55 mph.
HAZARD...70 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect considerable
tree damage. Wind damage is also likely to mobile homes,
roofs, and outbuildings.
Locations impacted include...
Owatonna, Waseca, Wells, Janesville, New Richland, Minnesota Lake,
Hartland, Freeborn, Waldorf, Otisco, Lemond and Hope.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
The Twin Cities.
&&
LAT...LON 4384 9398 4385 9377 4411 9377 4418 9371
4407 9319 4367 9361
TIME...MOT...LOC 2100Z 305DEG 47KT 4385 9337
TORNADO...POSSIBLE
HAIL...1.00IN
WIND...70MPH
$$
CTGThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 11, 5:32 AM CDT | Severe Thunderstorm Warning | MPX | Steele | 28 min |
| Jul 11, 10:43 AM CDT | Special Weather Statement | MPX | Douglas, Pope, Stevens | 47 min |
| Jul 11, 11:17 AM CDT | Severe Thunderstorm Warning | MPX | Swift | 43 min |
| Jul 11, 11:34 AM CDT | Special Weather Statement | MPX | Todd | 56 min |
| Jul 11, 12:00 PM CDT | Special Weather Statement | MPX | Kandiyohi | 45 min |
| Jul 11, 12:32 PM CDT | Severe Thunderstorm Warning | MPX | Kandiyohi, Renville | 58 min |
| Jul 11, 12:39 PM CDT | Special Weather Statement | MPX | Meeker | 51 min |
| Jul 11, 12:57 PM CDT | Special Weather Statement | MPX | Todd | 33 min |
| Jul 11, 1:05 PM CDT | Severe Thunderstorm Warning | MPX | McLeod, Meeker, Renville, Sibley | 55 min |
| Jul 11, 1:20 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Redwood, Renville, Yellow Medicine | 40 min |
| Jul 11, 1:28 PM CDT | Severe Thunderstorm Warning | MPX | Redwood | 47 min |
| Jul 11, 1:48 PM CDT | Severe Thunderstorm Warning | MPX | McLeod, Sibley | 57 min |
| Jul 11, 2:01 PM CDT | Special Weather Statement | MPX | Pope | 44 min |
| Jul 11, 2:15 PM CDT | Severe Thunderstorm Warning | MPX | Pope | 45 min |
| Jul 11, 2:20 PM CDT | Severe Thunderstorm Warning | MPX | Martin | 40 min |
| Jul 11, 2:23 PM CDT | Severe Thunderstorm Warning | MPX | Nicollet, Sibley | 52 min |
| Jul 11, 2:42 PM CDT | Severe Thunderstorm Warning | MPX | Blue Earth, Brown, Nicollet | 33 min |
| Jul 11, 2:57 PM CDT | Severe Thunderstorm Warning | MPX | Martin, Watonwan | 48 min |
| Jul 11, 3:03 PM CDT | Severe Thunderstorm Warning | MPX | Blue Earth, Brown, Le Sueur, Nicollet | 42 min |
| Jul 11, 3:10 PM CDT | Tornado Warning | MPX | Blue Earth, Nicollet | 20 min |
| Jul 11, 3:26 PM CDT | Severe Thunderstorm Warning | MPX | Faribault, Martin | 49 min |
| Jul 11, 4:05 PM CDT | Severe Thunderstorm Warning | MPX | Freeborn, Steele, Waseca | 55 min |
| Jul 11, 4:17 PM CDT | Special Weather Statement | MPX | Faribault | 58 min |
| Jul 11, 4:35 PM CDT | Severe Thunderstorm Warning | MPX | Faribault, Freeborn | 25 min |
| Jul 11, 6:16 PM CDT | Special Weather Statement | MPX | Hennepin | 59 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2020Every severe thunderstorm warning in 2020
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.