Alert archive / Minnesota / Severe Thunderstorm Warnings in 2014
Severe Thunderstorm Warning 131, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Sep 20, 2014, 4:56 PM CDT for 6 counties in Minnesota. It was in force for 49 min. 5 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, 4:56 PM CDT (21:56 UTC)
- Expired
- Sep 20, 2014, 5:45 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 Carver County, MN, Hennepin County, MN, McLeod County, MN, Scott County, MN, Sibley County, MN, Wright County, MN
The radar
The Minneapolis radar (KMPX), 13 km from the middle of the area, began a volume at 21:57 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, 5:00 PM CDT | TSTM WND DMG | 2 N Waverly, MN | MULTIPLE BRANCHES DOWN...UP TO 8 INCHES IN DIAMETER. |
| Sep 20, 5:05 PM CDT | TSTM WND DMG | Biscay, MN | 7 TO 8 INCH TREE BRANCH DOWN. |
| Sep 20, 5:20 PM CDT | TSTM WND DMG | 4 Ssw Victoria, MN | NUMEROUS TREES AND BRANCHES 4 TO 6 INCHES BLOWN DOWN. |
| Sep 20, 5:20 PM CDT | TSTM WND GST 59 | 4 Ssw Victoria, MN | |
| Sep 20, 5:24 PM CDT | TSTM WND DMG | Norwood/Young America, MN | 4 INCH TREE BRANCH DOWN. |
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, 9.9 hours before the alert went out and 11 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.
643
WUUS53 KMPX 202156
SVRMPX
MNC019-053-085-139-143-171-202245-
/O.NEW.KMPX.SV.W.0131.140920T2156Z-140920T2245Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
456 PM CDT SAT SEP 20 2014
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
CARVER COUNTY IN EAST CENTRAL MINNESOTA...
HENNEPIN COUNTY IN EAST CENTRAL MINNESOTA...
MCLEOD COUNTY IN CENTRAL MINNESOTA...
SCOTT COUNTY IN EAST CENTRAL MINNESOTA...
NORTHEASTERN SIBLEY COUNTY IN CENTRAL MINNESOTA...
SOUTHERN WRIGHT COUNTY IN CENTRAL MINNESOTA...
* UNTIL 545 PM CDT
* AT 454 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 7 MILES SOUTH OF MAPLE LAKE TO GLENCOE TO 7 MILES
SOUTH OF LAKE MARION REGIONAL PARK...AND MOVING SOUTHEAST AT 50
MPH.
HAZARD...60 MPH WIND GUSTS AND PENNY SIZE HAIL.
SOURCE...TRAINED WEATHER SPOTTERS.
IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES.
* SEVERE THUNDERSTORMS WILL BE NEAR...
WACONIA AROUND 515 PM CDT.
VICTORIA AND LAKE MINNETONKA AROUND 520 PM CDT.
EXCELSIOR AROUND 525 PM CDT.
PLYMOUTH AND MINNETONKA AROUND 530 PM CDT.
ST LOUIS PARK AND EDEN PRAIRIE AROUND 535 PM CDT.
SOUTH MINNEAPOLIS AND DOWNTOWN MINNEAPOLIS AROUND 540 PM CDT.
OTHER LOCATIONS IN THE WARNING INCLUDE WATERTOWN...NORWOOD/YOUNG AMERICA...
NEW AUBURN...MAYER...ROCKFORD...HAMBURG...GREEN ISLE...DELANO AND
GREENFIELD.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
IF ON OR NEAR LAKES WACONIA AND MINNETONKA...GET AWAY FROM THE WATER AND
MOVE TO SHELTER. IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING. BOATS CAN BE SWAMPED BY LARGE CAPSIZING WAVES...
EVEN ON SMALL BODIES OF WATER. MOVE INTO DOCK AND SEEK SAFE SHELTER
NOW.
&&
LAT...LON 4472 9450 4479 9446 4487 9424 4524 9406
4516 9372 4504 9328 4503 9321 4491 9320
4489 9317 4481 9326 4479 9334 4455 9342
4455 9391
TIME...MOT...LOC 2156Z 295DEG 42KT 4512 9398 4481 9410
4468 9440
HAIL...0.75IN
WIND...60MPH
$$3 follow-up statements
745
WWUS53 KMPX 202210
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
510 PM CDT SAT SEP 20 2014
MNC019-053-085-139-143-171-202245-
/O.CON.KMPX.SV.W.0131.000000T0000Z-140920T2245Z/
CARVER MN-HENNEPIN MN-MCLEOD MN-SCOTT MN-SIBLEY MN-WRIGHT MN-
510 PM CDT SAT SEP 20 2014
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL
WRIGHT...NORTHEASTERN SIBLEY...SCOTT...SOUTHEASTERN MCLEOD...HENNEPIN
AND CARVER COUNTIES UNTIL 545 PM CDT...
AT 507 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 9 MILES SOUTH OF BUFFALO TO 10 MILES SOUTHWEST OF
WACONIA TO GAYLORD...AND MOVING SOUTHEAST AT 50 MPH.
HAZARD...60 MPH WIND GUSTS.
SOURCE...TRAINED WEATHER SPOTTERS.
IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES.
SEVERE THUNDERSTORMS WILL BE NEAR...
WACONIA AROUND 515 PM CDT.
VICTORIA AND LAKE MINNETONKA AROUND 520 PM CDT.
EXCELSIOR AROUND 525 PM CDT.
PLYMOUTH AND MINNETONKA AROUND 530 PM CDT.
ST LOUIS PARK AND EDEN PRAIRIE AROUND 535 PM CDT.
SOUTH MINNEAPOLIS AND DOWNTOWN MINNEAPOLIS AROUND 540 PM CDT.
OTHER LOCATIONS IN THE WARNING INCLUDE MAPLE PLAIN...MINNETRISTA...
LAKE WACONIA...ST BONIFACIUS...INDEPENDENCE...COLOGNE...ARLINGTON...
LORETTO...MEDINA AND ORONO.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
IF ON OR NEAR LAKES WACONIA AND MINNETONKA...GET AWAY FROM THE WATER AND
MOVE TO SHELTER. IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING. BOATS CAN BE SWAMPED BY LARGE CAPSIZING WAVES...
EVEN ON SMALL BODIES OF WATER. MOVE INTO DOCK AND SEEK SAFE SHELTER
NOW.
&&
LAT...LON 4467 9431 4479 9406 4521 9394 4504 9328
4503 9321 4491 9320 4489 9317 4481 9326
4479 9334 4455 9342 4455 9391
TIME...MOT...LOC 2210Z 295DEG 42KT 4504 9377 4473 9390
4461 9420
HAIL...<.75IN
WIND...60MPH
$$926
WWUS53 KMPX 202217
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
517 PM CDT SAT SEP 20 2014
MNC085-202226-
/O.CAN.KMPX.SV.W.0131.000000T0000Z-140920T2245Z/
MCLEOD MN-
517 PM CDT SAT SEP 20 2014
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MCLEOD COUNTY IS
CANCELLED...
THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE
WARNED AREA.
LAT...LON 4463 9419 4473 9395 4517 9380 4504 9328
4503 9321 4491 9320 4489 9317 4481 9326
4479 9334 4455 9343 4455 9391
TIME...MOT...LOC 2216Z 295DEG 42KT 4501 9368 4471 9381
4458 9411
$$
MNC019-053-139-143-171-202245-
/O.CON.KMPX.SV.W.0131.000000T0000Z-140920T2245Z/
CARVER MN-HENNEPIN MN-SCOTT MN-SIBLEY MN-WRIGHT MN-
517 PM CDT SAT SEP 20 2014
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL
WRIGHT...NORTHEASTERN SIBLEY...SCOTT...HENNEPIN AND CARVER COUNTIES
UNTIL 545 PM CDT...
AT 515 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 7 MILES NORTHWEST OF LAKE MINNETONKA TO 7 MILES
NORTHWEST OF MN VALLEY STATE REC AREA TO 5 MILES EAST OF GAYLORD...
AND MOVING SOUTHEAST AT 50 MPH.
HAZARD...60 MPH WIND GUSTS.
SOURCE...TRAINED WEATHER SPOTTERS.
IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES.
SEVERE THUNDERSTORMS WILL BE NEAR...
EXCELSIOR AROUND 525 PM CDT.
PLYMOUTH AND MINNETONKA AROUND 530 PM CDT.
ST LOUIS PARK AND EDEN PRAIRIE AROUND 535 PM CDT.
SOUTH MINNEAPOLIS AND DOWNTOWN MINNEAPOLIS AROUND 540 PM CDT.
MALL OF AMERICA AND MSP INTL AIRPORT AROUND 545 PM CDT.
OTHER LOCATIONS IN THE WARNING INCLUDE HAMEL...LONG LAKE...WAYZATA...
SHOREWOOD...NWS CHANHASSEN...CARVER...BELLE PLAINE...DEEPHAVEN...
WOODLAND AND MARYSTOWN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
IF ON OR NEAR LAKES WACONIA AND MINNETONKA...GET AWAY FROM THE WATER AND
MOVE TO SHELTER. IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING. BOATS CAN BE SWAMPED BY LARGE CAPSIZING WAVES...
EVEN ON SMALL BODIES OF WATER. MOVE INTO DOCK AND SEEK SAFE SHELTER
NOW.
&&
LAT...LON 4463 9419 4473 9395 4517 9380 4504 9328
4503 9321 4491 9320 4489 9317 4481 9326
4479 9334 4455 9343 4455 9391
TIME...MOT...LOC 2216Z 295DEG 42KT 4501 9368 4471 9381
4458 9411
HAIL...<.75IN
WIND...60MPH
$$272
WWUS53 KMPX 202227
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
527 PM CDT SAT SEP 20 2014
MNC171-202237-
/O.CAN.KMPX.SV.W.0131.000000T0000Z-140920T2245Z/
WRIGHT MN-
527 PM CDT SAT SEP 20 2014
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL WRIGHT COUNTY IS
CANCELLED...
THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE
WARNED AREA.
LAT...LON 4459 9404 4469 9386 4514 9368 4502 9321
4491 9320 4489 9317 4481 9327 4479 9334
4455 9343 4455 9391
TIME...MOT...LOC 2227Z 301DEG 43KT 4494 9351 4463 9361
4450 9391
$$
MNC019-053-139-143-202245-
/O.CON.KMPX.SV.W.0131.000000T0000Z-140920T2245Z/
CARVER MN-HENNEPIN MN-SCOTT MN-SIBLEY MN-
527 PM CDT SAT SEP 20 2014
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EAST CENTRAL
SIBLEY...SCOTT...HENNEPIN AND EASTERN CARVER COUNTIES UNTIL 545 PM
CDT...
AT 523 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM LAKE MINNETONKA TO MN VALLEY STATE REC AREA TO 13
MILES EAST OF GAYLORD...AND MOVING SOUTHEAST AT 50 MPH.
HAZARD...60 MPH WIND GUSTS.
SOURCE...TRAINED WEATHER SPOTTERS.
IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES.
SEVERE THUNDERSTORMS WILL BE NEAR...
EDINA AND ST LOUIS PARK AROUND 535 PM CDT.
MALL OF AMERICA AND RICHFIELD AROUND 540 PM CDT.
FORT SNELLING AROUND 545 PM CDT.
OTHER LOCATIONS IN THE WARNING INCLUDE HOPKINS...PRIOR LAKE AND
SAVAGE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 4459 9404 4469 9386 4514 9368 4502 9321
4491 9320 4489 9317 4481 9327 4479 9334
4455 9343 4455 9391
TIME...MOT...LOC 2227Z 301DEG 43KT 4494 9351 4463 9361
4450 9391
HAIL...<.75IN
WIND...60MPH
$$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, 4:57 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, 5:41 PM CDT | Severe Thunderstorm Warning | MPX | Blue Earth, Faribault, Freeborn, Le Sueur, Nicollet, Waseca and 1 more | 49 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.