Alert archive / Minnesota / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 347, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Sep 13, 2007, 8:49 AM CDT for Wright County, Minnesota. It was in force for 41 min. 1 report 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 13, 2007, 8:49 AM CDT (13:49 UTC)
- Expired
- Sep 13, 2007, 9:30 AM CDT
- In force
- 41 min
- Issued by
- NWS Twin Cities, MN
- Area
- Counties, with a storm outline in the text
County Wright County, MN
The radar
The Minneapolis radar (KMPX), 45 km from the middle of the area, began a volume at 13:52 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 13, 8:55 AM CDT | HAIL 0.75 | Cokato, MN |
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, 1.8 hours before the alert went out and 43 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1290 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 418 m²/s²
- 0-3 km storm-relative helicity
- 456 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS53 KMPX 131349
SVRMPX
MNC171-131430-
/O.NEW.KMPX.SV.W.0347.070913T1349Z-070913T1430Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
849 AM CDT THU SEP 13 2007
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
WRIGHT COUNTY IN CENTRAL MINNESOTA...
* UNTIL 930 AM CDT
* AT 847 AM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM...
CAPABLE OF PRODUCING NICKEL SIZE HAIL...AND DAMAGING WINDS IN
EXCESS OF 60 MPH. THIS STORM WAS LOCATED 15 MILES SOUTHWEST OF
BUFFALO...OR ABOUT 17 MILES NORTHEAST OF HUTCHINSON...AND MOVING
EAST AT 15 MPH.
* LOCATIONS IMPACTED INCLUDE...
BUFFALO...
MONTROSE...
HOWARD LAKE...
STAY INDOORS...AND AWAY FROM WINDOWS.
LAT...LON 4522 9407 4529 9384 4529 9371 4516 9373
4508 9377 4501 9381 4499 9421 4517 9423
TIME...MOT...LOC 1349Z 252DEG 13KT 4508 9413
$$3 follow-up statements
000
WWUS53 KMPX 131401
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
900 AM CDT THU SEP 13 2007
MNC171-131430-
/O.CON.KMPX.SV.W.0347.000000T0000Z-070913T1430Z/
WRIGHT MN-
900 AM CDT THU SEP 13 2007
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 AM CDT
FOR WRIGHT COUNTY...
AT 855 AM CDT...DIME SIZE HAIL WAS REPORTED IN COKATO WITH THIS
STORM.
AT 900 AM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE
THUNDERSTORM...CAPABLE OF PRODUCING NICKEL SIZE HAIL...AND DAMAGING
WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 3 MILES NORTHWEST
OF WAVERLY...OR ABOUT 9 MILES SOUTHWEST OF BUFFALO...AND MOVING EAST
AT 30 MPH. OTHER STORMS WITHIN THE COUNTY WERE ALSO APPROACHING
SEVERE LIMITS.
OTHER LOCATIONS IN THE WARNING INCLUDE SMITH LAKE...RASSAT...
WAVERLY...MONTROSE...MAPLE LAKE...HOWARD LAKE...COKATO AND BUFFALO.
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...LARGE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
LAT...LON 4502 9422 4515 9422 4522 9407 4529 9384
4529 9372 4527 9370 4518 9374 4516 9372
4501 9381
TIME...MOT...LOC 1400Z 256DEG 28KT 4510 9398
$$000
WWUS53 KMPX 131417
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
916 AM CDT THU SEP 13 2007
MNC171-131430-
/O.CON.KMPX.SV.W.0347.000000T0000Z-070913T1430Z/
WRIGHT MN-
916 AM CDT THU SEP 13 2007
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 AM CDT
FOR WRIGHT COUNTY...
AT 915 AM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE
THUNDERSTORM...CAPABLE OF PRODUCING PENNY SIZE HAIL. THIS STORM WAS
LOCATED 4 MILES SOUTHEAST OF BUFFALO...OR ABOUT OVER BUFFALO...AND
MOVING EAST AT 35 MPH. ANOTHER THUNDERSTORM NEAR SEVERE LIMITS WAS
LOCATED 10 MILES SOUTHWEST OF BUFFALO AND ALSO MOVING EAST AT 35 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE RASSAT...WAVERLY...MONTROSE...
HOWARD LAKE AND BUFFALO.
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR LARGE HAIL AND DEADLY CLOUD TO GROUND LIGHTNING.
PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY INSIDE A STRONG
BUILDING BUT AWAY FROM WINDOWS.
LAT...LON 4506 9410 4515 9413 4520 9405 4529 9384
4529 9372 4527 9369 4520 9374 4515 9372
4505 9380
TIME...MOT...LOC 1416Z 252DEG 34KT 4514 9378
$$000
WWUS53 KMPX 131429
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
927 AM CDT THU SEP 13 2007
MNC171-131437-
/O.EXP.KMPX.SV.W.0347.000000T0000Z-070913T1430Z/
WRIGHT MN-
927 AM CDT THU SEP 13 2007
...THE SEVERE THUNDERSTORM WARNING FOR WRIGHT COUNTY EXPIRES AT 930
AM CDT...
AT 855 AM CDT...THREE QUARTER INCH HAIL WAS REPORTED IN COKATO.
NUMEROUS REPORTS OF PEA SIZE HAIL HAVE BEEN RECEIVED SINCE 9 AM. IT
APPEARS THAT THE STORM HAS WEAKENED SINCE 915 AM.
SEVERE STORMS WERE ABOUT TO MOVE OUT OF THE COUNTY. HOWEVER...MORE
THUNDERSTORMS WERE DEVELOPING IN THE AREA...REMAIN ALERT FOR POSSIBLE
ADDITIONAL WARNINGS.
LAT...LON 4506 9410 4515 9413 4520 9405 4529 9384
4529 9372 4527 9369 4520 9374 4515 9372
4505 9380
TIME...MOT...LOC 1427Z 252DEG 34KT 4517 9364
$$The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 13, 12:24 PM CDT | Severe Thunderstorm Warning | MPX | Goodhue | 51 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2007Every severe thunderstorm warning in 2007
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.