Alert archive / Minnesota / Severe Thunderstorm Warnings in 2014
Severe Thunderstorm Warning 134, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Sep 20, 2014, 5:41 PM CDT for 7 counties in Minnesota. It was in force for 49 min. 3 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
- Sep 20, 2014, 5:41 PM CDT (22:41 UTC)
- Expired
- Sep 20, 2014, 6:30 PM CDT
- In force
- 49 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Blue Earth County, MN, Faribault County, MN, Freeborn County, MN, Le Sueur County, MN, Nicollet County, MN, Waseca County, MN, Watonwan County, MN
The radar
The Minneapolis radar (KMPX), 92 km from the middle of the area, began a volume at 22:46 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 |
|---|---|---|---|
| Sep 20, 5:45 PM CDT | TSTM WND DMG | Madelia, MN | NUMEROUS TREES AND BRANCHES DOWN ALL OVER TOWN. |
| Sep 20, 5:45 PM CDT | HAIL 1 | Waseca, MN | |
| Sep 20, 5:55 PM CDT | TSTM WND DMG | Mankato, MN | OLD BIG LARGE TREES TOWN. |
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 |
|---|---|---|---|
| Sep 20, 1:26 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 10.7 hours before the alert went out and 92 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
- 295 J/kg
- Mixed-layer CIN
- -178 J/kg
- Mixed-layer LCL
- 1113 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- -28 m²/s²
- 0-3 km storm-relative helicity
- 50 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.2
The text
As transmitted, in the capitals the NWS used until 2016.
812
WUUS53 KMPX 202241
SVRMPX
MNC013-043-047-079-103-161-165-202330-
/O.NEW.KMPX.SV.W.0134.140920T2241Z-140920T2330Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
541 PM CDT SAT SEP 20 2014
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
BLUE EARTH COUNTY IN SOUTH CENTRAL MINNESOTA...
NORTHEASTERN FARIBAULT COUNTY IN SOUTH CENTRAL MINNESOTA...
NORTHWESTERN FREEBORN COUNTY IN SOUTH CENTRAL MINNESOTA...
SOUTHERN LE SUEUR COUNTY IN SOUTH CENTRAL MINNESOTA...
SOUTHEASTERN NICOLLET COUNTY IN SOUTH CENTRAL MINNESOTA...
WASECA COUNTY IN SOUTH CENTRAL MINNESOTA...
NORTHEASTERN WATONWAN COUNTY IN SOUTH CENTRAL MINNESOTA...
* UNTIL 630 PM CDT
* AT 539 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM ST PETER TO MINNEOPA STATE PARK TO ST JAMES...AND
MOVING SOUTHEAST AT 60 MPH.
HAZARD...60 MPH WIND GUSTS.
SOURCE...RADAR INDICATED.
IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES.
* SEVERE THUNDERSTORMS WILL BE NEAR...
WASECA AROUND 605 PM CDT.
OTHER LOCATIONS IN THE WARNING INCLUDE GREENLAND...MADISON LAKE...
GOOD THUNDER...ELYSIAN...EAGLE LAKE...WATERVILLE...VERNON CENTER...ST
CLAIR...JANESVILLE AND ALMA CITY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 4369 9382 4404 9466 4411 9437 4418 9437
4420 9429 4442 9391 4425 9352 4420 9352
4420 9340 4385 9341 4378 9352
TIME...MOT...LOC 2241Z 299DEG 51KT 4430 9383 4413 9412
4400 9455
HAIL...<.75IN
WIND...60MPH
$$3 follow-up statements
806
WWUS53 KMPX 202256
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
556 PM CDT SAT SEP 20 2014
MNC103-165-202306-
/O.CAN.KMPX.SV.W.0134.000000T0000Z-140920T2330Z/
NICOLLET MN-WATONWAN MN-
556 PM CDT SAT SEP 20 2014
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN WATONWAN AND
SOUTHEASTERN NICOLLET COUNTIES IS CANCELLED...
THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS MOVED OUT OF
THE WARNED AREA.
LAT...LON 4390 9433 4392 9437 4394 9437 4411 9403
4435 9375 4425 9352 4420 9352 4419 9341
4385 9341 4378 9352 4369 9382
TIME...MOT...LOC 2256Z 299DEG 51KT 4419 9357 4402 9387
4389 9430
$$
MNC013-043-047-079-161-202330-
/O.CON.KMPX.SV.W.0134.000000T0000Z-140920T2330Z/
FARIBAULT MN-FREEBORN MN-LE SUEUR MN-WASECA MN-BLUE EARTH MN-
556 PM CDT SAT SEP 20 2014
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
BLUE EARTH...WASECA...SOUTHEASTERN LE SUEUR...NORTHWESTERN FREEBORN
AND NORTHEASTERN FARIBAULT COUNTIES UNTIL 630 PM CDT...
AT 554 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 10 MILES NORTHWEST OF WASECA TO 10 MILES SOUTHEAST OF
MANKATO TO 11 MILES SOUTHEAST OF MADELIA...AND MOVING SOUTHEAST AT 60
MPH.
HAZARD...60 MPH WIND GUSTS.
SOURCE...TRAINED WEATHER SPOTTERS.
IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES.
SEVERE THUNDERSTORMS WILL BE NEAR...
WASECA AROUND 605 PM CDT.
OTHER LOCATIONS IN THE WARNING INCLUDE WASECA AIRPORT...WALDORF...
OTISCO...MINNESOTA LAKE...NEW RICHLAND...EASTON AND WELLS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS SITUATION. THESE STORMS ARE PRODUCING WIDESPREAD
WIND DAMAGE ACROSS BLUE EARTH COUNTY AND THE MANKATO AREA. SEEK
SHELTER NOW INSIDE STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.
&&
LAT...LON 4390 9433 4392 9437 4394 9437 4411 9403
4435 9375 4425 9352 4420 9352 4419 9341
4385 9341 4378 9352 4369 9382
TIME...MOT...LOC 2256Z 299DEG 51KT 4419 9357 4402 9387
4389 9430
HAIL...<.75IN
WIND...60MPH
$$280
WWUS53 KMPX 202309
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
609 PM CDT SAT SEP 20 2014
MNC079-202319-
/O.CAN.KMPX.SV.W.0134.000000T0000Z-140920T2330Z/
LE SUEUR MN-
609 PM CDT SAT SEP 20 2014
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN LE SUEUR COUNTY
IS CANCELLED...
THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE
WARNED AREA.
LAT...LON 4384 9417 4398 9379 4420 9352 4419 9341
4385 9341 4378 9352 4369 9382
TIME...MOT...LOC 2309Z 299DEG 51KT 4409 9335 4392 9365
4380 9408
$$
MNC013-043-047-161-202330-
/O.CON.KMPX.SV.W.0134.000000T0000Z-140920T2330Z/
FARIBAULT MN-FREEBORN MN-WASECA MN-BLUE EARTH MN-
609 PM CDT SAT SEP 20 2014
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
BLUE EARTH...WASECA...NORTHWESTERN FREEBORN AND NORTHEASTERN
FARIBAULT COUNTIES UNTIL 630 PM CDT...
AT 607 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 6 MILES EAST OF WASECA TO 14 MILES SOUTHWEST OF WASECA
TO 12 MILES NORTH OF BLUE EARTH...AND MOVING SOUTHEAST AT 60 MPH.
HAZARD...60 MPH WIND GUSTS.
SOURCE...TRAINED WEATHER SPOTTERS.
IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES.
SEVERE THUNDERSTORMS WILL AFFECT MAINLY RURAL AREAS OF NORTHEASTERN
FARIBAULT...NORTHWESTERN FREEBORN...SOUTHEASTERN BLUE EARTH AND
WASECA COUNTIES...INCLUDING THE FOLLOWING LOCATIONS...NEW RICHLAND...
EASTON AND WELLS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS SITUATION. THESE STORMS ARE PRODUCING WIDESPREAD
WIND DAMAGE ACROSS BLUE EARTH COUNTY AND THE MANKATO AREA. SEEK
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.
&&
LAT...LON 4384 9417 4398 9379 4420 9352 4419 9341
4385 9341 4378 9352 4369 9382
TIME...MOT...LOC 2309Z 299DEG 51KT 4409 9335 4392 9365
4380 9408
HAIL...<.75IN
WIND...60MPH
$$224
WWUS53 KMPX 202322
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
622 PM CDT SAT SEP 20 2014
MNC013-043-047-161-202331-
/O.EXP.KMPX.SV.W.0134.000000T0000Z-140920T2330Z/
FARIBAULT MN-FREEBORN MN-WASECA MN-BLUE EARTH MN-
622 PM CDT SAT SEP 20 2014
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN BLUE EARTH...
WASECA...NORTHWESTERN FREEBORN AND NORTHEASTERN FARIBAULT COUNTIES HAS
BEEN REISSUED FOR LOCATIONS TO THE SOUTHEAST OF THE LINE...
PLEASE REFER TO SEVERE THUNDERSTORM WANRING NUMBER 137 FOR THE LATEST
SEVERE WEATHER INFORMATION.
LAT...LON 4384 9417 4398 9379 4420 9352 4419 9341
4385 9341 4378 9352 4369 9382
TIME...MOT...LOC 2321Z 299DEG 51KT 4400 9315 4383 9345
4371 9388
$$The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 19, 10:58 PM CDT | Special Weather Statement | MPX | Faribault, Freeborn | 47 min |
| Sep 20, 2:14 PM CDT | Special Weather Statement | MPX | Douglas, Stevens | 61 min |
| Sep 20, 2:57 PM CDT | Severe Thunderstorm Warning | MPX | Douglas, Kandiyohi, Pope, Stearns, Stevens, Swift | 48 min |
| Sep 20, 3:19 PM CDT | Special Weather Statement | MPX | Morrison, Todd | 56 min |
| Sep 20, 3:36 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Kandiyohi, Meeker, Renville, Stearns | 39 min |
| Sep 20, 4:11 PM CDT | Severe Thunderstorm Warning | MPX | Kandiyohi, McLeod, Meeker, Renville, Wright | 49 min |
| Sep 20, 4:56 PM CDT | Severe Thunderstorm Warning | MPX | Carver, Hennepin, McLeod, Scott, Sibley, Wright | 49 min |
| Sep 20, 4:57 PM CDT | Severe Thunderstorm Warning | MPX | Brown, Nicollet, Redwood, Renville, Sibley | 48 min |
| Sep 20, 5:06 PM CDT | Special Weather Statement | MPX | Anoka, Chisago, Isanti, Kanabec, Mille Lacs, Sherburne and 1 more | 54 min |
| Sep 20, 5:08 PM CDT | Special Weather Statement | MPX | Waseca | 37 min |
| Sep 20, 5:33 PM CDT | Severe Thunderstorm Warning | MPX | Dakota, Hennepin, Le Sueur, Rice, Scott | 42 min |
| Sep 20, 5:43 PM CDT | Severe Thunderstorm Warning | MPX | Steele, Waseca | 32 min |
| Sep 20, 6:02 PM CDT | Severe Thunderstorm Warning | MPX | Dakota, Goodhue, Rice | 43 min |
| Sep 20, 6:13 PM CDT | Severe Thunderstorm Warning | MPX | Faribault, Freeborn, Steele, Waseca | 47 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2014Every severe thunderstorm warning in 2014
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.