Alert archive / Minnesota / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 399, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Sep 26, 2007, 6:56 PM CDT for Sibley County, Minnesota. It was in force for 48 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Sep 26, 2007, 6:56 PM CDT (23:56 UTC)
- Expired
- Sep 26, 2007, 7:44 PM CDT
- In force
- 48 min
- Issued by
- NWS Twin Cities, MN
- Area
- Counties, with a storm outline in the text
County Sibley County, MN
The radar
The Minneapolis radar (KMPX), 56 km from the middle of the area, began a volume at 23:55 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.
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 11.9 hours before the alert went out and 54 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
- 788 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 79 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS53 KMPX 262355
SVRMPX
MNC143-270100-
/O.NEW.KMPX.SV.W.0399.070926T2356Z-070927T0100Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
656 PM CDT WED SEP 26 2007
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SIBLEY COUNTY IN CENTRAL MINNESOTA...
* UNTIL 800 PM CDT
* AT 654 PM 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 NEAR GAYLORD...OR ABOUT
19 MILES NORTHEAST OF NEW ULM...AND MOVING EAST AT 25 MPH.
* LOCATIONS IMPACTED INCLUDE...
GAYLORD...
ARLINGTON...
SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE
WARNING. PREPARE TO MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE
SUCH AS A BASEMENT OR SMALL INTERIOR ROOM IF A TORNADO IS SPOTTED.
LAT...LON 4462 9433 4464 9428 4463 9426 4465 9425
4473 9406 4471 9402 4451 9395 4449 9434
TIME...MOT...LOC 2356Z 258DEG 25KT 4455 9424
$$2 follow-up statements
000
WWUS53 KMPX 270012
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
712 PM CDT WED SEP 26 2007
MNC143-270100-
/O.CON.KMPX.SV.W.0399.000000T0000Z-070927T0100Z/
SIBLEY MN-
712 PM CDT WED SEP 26 2007
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM CDT
FOR SIBLEY COUNTY...
AT 712 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE
THUNDERSTORM...CAPABLE OF PRODUCING NICKEL SIZE HAIL...AND DAMAGING
WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR NEW ROME...OR
ABOUT OVER ARLINGTON...AND MOVING EAST AT 25 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE NEW ROME...COATES...GAYLORD
AND ARLINGTON.
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
LAT...LON 4462 9433 4464 9428 4463 9426 4465 9425
4473 9406 4471 9402 4451 9395 4449 9434
TIME...MOT...LOC 0012Z 258DEG 25KT 4457 9409
$$000
WWUS53 KMPX 270044
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
744 PM CDT WED SEP 26 2007
MNC143-270054-
/O.CAN.KMPX.SV.W.0399.000000T0000Z-070927T0100Z/
SIBLEY MN-
744 PM CDT WED SEP 26 2007
...THE SEVERE THUNDERSTORM WARNING FOR SIBLEY COUNTY IS CANCELLED...
RADAR INDICATED THAT THE SEVERE THUNDERSTORM HAD MOVED OUT OF THE
WARNED AREA. THUS THE WARNING HAS BEEN CANCELLED.
LAT...LON 4462 9433 4464 9428 4463 9426 4465 9425
4473 9406 4471 9402 4451 9395 4449 9434
TIME...MOT...LOC 0044Z 258DEG 25KT 4462 9378
$$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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.