Alert archive / Minnesota / Severe Thunderstorm Warnings in 2008
Severe Thunderstorm Warning 280, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 12, 2008, 6:59 PM CDT for Chisago County, Isanti County, Minnesota. It was in force for 46 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
- Aug 12, 2008, 6:59 PM CDT (23:59 UTC)
- Expired
- Aug 12, 2008, 7:45 PM CDT
- In force
- 46 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
Counties Chisago County, MN, Isanti County, MN
The radar
The Minneapolis radar (KMPX), 81 km from the middle of the area, began a volume at 00:03 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, 12.0 hours before the alert went out and 83 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
- 692 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 36 m²/s²
- 0-3 km storm-relative helicity
- 29 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 122359
SVRMPX
MNC025-059-130045-
/O.NEW.KMPX.SV.W.0280.080812T2359Z-080813T0045Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
659 PM CDT TUE AUG 12 2008
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHEASTERN ISANTI COUNTY IN EAST CENTRAL MINNESOTA...
CHISAGO COUNTY IN EAST CENTRAL MINNESOTA...
* UNTIL 745 PM CDT
* AT 654 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF
PRODUCING PENNY SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60 MPH.
THIS STORM WAS LOCATED 7 MILES WEST OF HARRIS...OR ABOUT 5 MILES
EAST OF CAMBRIDGE...AND MOVING SOUTHEAST AT 24 MPH.
* SOME LOCATIONS INCLUDE...
HARRIS...
NORTH BRANCH...
STACY...
WYOMING...
CHISAGO CITY...
LINDSTROM...
CENTER CITY...
SHAFER...
IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR
DAMAGING WINDS AND LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.
DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A WEAK TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.
LAT...LON 4531 9271 4530 9275 4530 9301 4538 9301
4541 9304 4541 9315 4557 9320 4568 9305
4552 9276 4536 9268
TIME...MOT...LOC 2359Z 312DEG 21KT 4557 9309
$$3 follow-up statements
000
WWUS53 KMPX 130014
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
714 PM CDT TUE AUG 12 2008
MNC025-059-130045-
/O.CON.KMPX.SV.W.0280.000000T0000Z-080813T0045Z/
ISANTI MN-CHISAGO MN-
713 PM CDT TUE AUG 12 2008
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT
FOR CHISAGO AND SOUTHEASTERN ISANTI COUNTIES...
AT 713 PM CDT...RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM...
CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THE SEVERE
STORM WAS LOCATED 5 MILES NORTHWEST OF NORTH BRANCH...AND MOVING
SOUTH SOUTHEAST AT 21 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE WYOMING...STACY...
SHAFER...NORTH BRANCH...LINDSTROM...CHISAGO CITY...CENTER
CITY...BRANCH...AND INTERSTATE 35E.
PREPARE IMMEDIATELY FOR DAMAGING WINDS. SEEK SHELTER NOW INSIDE A
STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.
DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A WEAK TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.
LAT...LON 4531 9271 4530 9275 4530 9301 4540 9302
4541 9315 4556 9317 4562 9307 4557 9286
4552 9276 4538 9269
TIME...MOT...LOC 0013Z 314DEG 18KT 4554 9306
$$000
WWUS53 KMPX 130027
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
727 PM CDT TUE AUG 12 2008
MNC025-059-130045-
/O.CON.KMPX.SV.W.0280.000000T0000Z-080813T0045Z/
ISANTI MN-CHISAGO MN-
726 PM CDT TUE AUG 12 2008
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT
FOR CHISAGO AND SOUTHEASTERN ISANTI COUNTIES...
AT 726 PM CDT...RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM...
CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THE SEVERE
STORM WAS LOCATED NEAR NORTH BRANCH...OR ABOUT 2 MILES SOUTHWEST OF
NORTH BRANCH...AND MOVING SOUTH SOUTHEAST AT 25 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE WYOMING...STACY...SHAFER...
NORTH BRANCH...LINDSTROM...CHISAGO CITY...CENTER CITY...BRANCH....
AND INTERSTATE 35E.
PREPARE IMMEDIATELY FOR DAMAGING WINDS. SEEK SHELTER NOW INSIDE A
STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.
DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A WEAK TORNADO MAY STILL DEVELOP. IF
A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN
A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.
LAT...LON 4531 9271 4530 9301 4540 9302 4541 9304
4541 9312 4542 9314 4553 9310 4555 9297
4551 9286 4538 9269
TIME...MOT...LOC 0026Z 314DEG 18KT 4549 9300
$$000
WWUS53 KMPX 130039
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
739 PM CDT TUE AUG 12 2008
MNC025-059-130048-
/O.EXP.KMPX.SV.W.0280.000000T0000Z-080813T0045Z/
ISANTI MN-CHISAGO MN-
738 PM CDT TUE AUG 12 2008
...THE SEVERE THUNDERSTORM WARNING FOR CHISAGO AND SOUTHEASTERN
ISANTI COUNTIES EXPIRES AT 745 PM CDT...
THE SEVERE STORM WHICH PROMPTED THE WARNING HAS SHOWN A WEAKENING
TREND AND WILL LIKELY CONTINUE TO. THEREFORE THE WARNING WILL BE
ALLOWED TO EXPIRE.
REPORT ANY SEVERE WEATHER OR DAMAGE TO YOUR LOCAL LAW ENFORCEMENT
FOR RELAY TO THE NATIONAL WEATHER SERVICE.
LAT...LON 4531 9271 4530 9301 4540 9302 4541 9304
4541 9312 4542 9314 4553 9310 4555 9297
4551 9286 4538 9269
TIME...MOT...LOC 0038Z 314DEG 18KT 4545 9294
$$The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 4:55 PM CDT | Severe Thunderstorm Warning | MPX | Blue Earth | 22 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2008Every severe thunderstorm warning in 2008
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.