Alert archive / Minnesota / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 401, NWS Twin Cities, MN

September 30, 2007Meeker County, Sherburne County, Stearns County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Sep 30, 2007, 3:07 AM CDT for Meeker County, Sherburne County, Stearns County, Minnesota. It was in force for 38 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 30, 2007, 3:07 AM CDT (08:07 UTC)
Expired
Sep 30, 2007, 3:45 AM CDT
In force
38 min
Issued by
NWS Twin Cities, MN
Area
Counties, with a storm outline in the text

Counties Meeker County, MN, Sherburne County, MN, Stearns County, MN

The radar

The Minneapolis radar (KMPX), 82 km from the middle of the area, began a volume at 08:09 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 00:00Z, 8.1 hours before the alert went out and 80 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.

Skew-T log-pSkew-T log-p diagram, Minneapolis, MN at 00:00Z on 2007-09-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 2007-09-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 434 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1567 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
434 m²/s²
0-3 km storm-relative helicity
705 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS53 KMPX 300808
SVRMPX
MNC093-141-145-300845-
/O.NEW.KMPX.SV.W.0401.070930T0807Z-070930T0845Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
307 AM CDT SUN SEP 30 2007

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN STEARNS COUNTY IN CENTRAL MINNESOTA...
  WESTERN SHERBURNE COUNTY IN CENTRAL MINNESOTA...
  NORTHEASTERN MEEKER COUNTY IN CENTRAL MINNESOTA...

* UNTIL 345 AM CDT

* AT 307 AM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM...
  CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 10 MILES SOUTH OF EDEN
  VALLEY...OR ABOUT OVER LITCHFIELD...AND MOVING NORTHEAST AT 50 MPH.

* LOCATIONS IMPACTED INCLUDE...
  EDEN VALLEY...
  WATKINS...
  ST CLOUD...

STAY INDOORS...AND AWAY FROM WINDOWS.

LAT...LON 4530 9466 4567 9439 4547 9394 4542 9404
      4542 9406 4540 9407 4531 9426 4516 9445
TIME...MOT...LOC 0807Z 217DEG 44KT 4521 9450

$$
3 follow-up statements
000 
WWUS53 KMPX 300816
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
316 AM CDT SUN SEP 30 2007

MNC093-141-145-300845-
/O.CON.KMPX.SV.W.0401.000000T0000Z-070930T0845Z/
STEARNS MN-SHERBURNE MN-MEEKER MN-
316 AM CDT SUN SEP 30 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 AM CDT 
FOR NORTHEASTERN MEEKER...WESTERN SHERBURNE AND EASTERN STEARNS 
COUNTIES...

AT 316 AM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE 
THUNDERSTORM...CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND 
DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 4 MILES 
SOUTH OF WATKINS...OR ABOUT OVER WATKINS...AND MOVING NORTHEAST AT 
50 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE ST NICHOLAS...ST AUGUSTA...
LUXEMBURG...COLLEGEVILLE...WATKINS...WAITE PARK...ST JOSEPH...ST
CLOUD...ROCKVILLE AND PLEASANT LAKE.

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 4542 9406 4540 9407 4530 9429 4525 9433
      4524 9437 4531 9459 4567 9439 4547 9394
TIME...MOT...LOC 0816Z 217DEG 44KT 4530 9440

$$
000 
WWUS53 KMPX 300824
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
323 AM CDT SUN SEP 30 2007

MNC093-300833-
/O.CAN.KMPX.SV.W.0401.000000T0000Z-070930T0845Z/
MEEKER MN-
323 AM CDT SUN SEP 30 2007

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MEEKER COUNTY IS 
CANCELLED...

THE SEVERE THUNDERSTORM HAS MOVED OUT OF THE WARNED AREA...THUS THE 
WARNING HAS BEEN CANCELLED. MORE THUNDERSTORMS ARE POSSIBLE THIS 
MORNING. STAY ALERT FOR ADDITIONAL WARNINGS.

LAT...LON 4536 9419 4542 9447 4567 9439 4553 9409
      4552 9405 4551 9404 4551 9403 4547 9394
TIME...MOT...LOC 0823Z 216DEG 59KT 4544 9426

$$

MNC141-145-300845-
/O.CON.KMPX.SV.W.0401.000000T0000Z-070930T0845Z/
STEARNS MN-SHERBURNE MN-
323 AM CDT SUN SEP 30 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 AM CDT
FOR SHERBURNE AND STEARNS COUNTIES...

AT 323 AM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE 
THUNDERSTORM...NOW CAPABLE OF PRODUCING PENNY SIZE HAIL...AND 
DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 4 MILES 
SOUTHWEST OF LUXEMBURG...OR ABOUT 9 MILES NORTHEAST OF WATKINS...AND 
MOVING NORTHEAST AT 65 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE ST AUGUSTA...LUXEMBURG...
COLLEGEVILLE...WAITE PARK...ST JOSEPH...ST CLOUD...ROCKVILLE...
PLEASANT LAKE AND COLD SPRING.

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 4536 9419 4542 9447 4567 9439 4553 9409
      4552 9405 4551 9404 4551 9403 4547 9394
TIME...MOT...LOC 0823Z 216DEG 59KT 4544 9426

$$
000 
WWUS53 KMPX 300839
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
338 AM CDT SUN SEP 30 2007

MNC141-145-300848-
/O.EXP.KMPX.SV.W.0401.000000T0000Z-070930T0845Z/
STEARNS MN-SHERBURNE MN-
338 AM CDT SUN SEP 30 2007

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN SHERBURNE AND WESTERN 
STEARNS COUNTIES EXPIRES AT 345 AM CDT...

SEVERE STORMS WERE ABOUT TO MOVE OUT OF THE COUNTIES. HOWEVER...MORE 
THUNDERSTORMS WERE DEVELOPING IN THE AREA...REMAIN ALERT FOR POSSIBLE
ADDITIONAL WARNINGS.

REPORT ANY SEVERE WEATHER TO YOUR LOCAL LAW ENFORCEMENT FOR RELAY TO 
THE NATIONAL WEATHER SERVICE.

LAT...LON 4536 9419 4542 9447 4567 9439 4553 9409
      4552 9405 4551 9404 4551 9403 4547 9394
TIME...MOT...LOC 0838Z 216DEG 59KT 4564 9405

$$

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 30, 2:34 AM CDTSevere Thunderstorm WarningMPXKandiyohi, Meeker, Renville41 min
Sep 30, 3:20 AM CDTSevere Thunderstorm WarningMPXWright16 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.