Alert archive / Minnesota / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 253, NWS Twin Cities, MN

October 3, 2006Le Sueur County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Oct 3, 2006, 10:33 PM CDT for Le Sueur County, Minnesota. It was in force for 27 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
Oct 3, 2006, 10:33 PM CDT (03:33 UTC)
Expired
Oct 3, 2006, 11:00 PM CDT
In force
27 min
Issued by
NWS Twin Cities, MN
Area
Counties, with a storm outline in the text

County Le Sueur County, MN

The radar

The Minneapolis radar (KMPX), 43 km from the middle of the area, began a volume at 03:35 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Oct 3, 3:34 PM CDTTornado WatchSPC8 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 3.6 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.

Skew-T log-pSkew-T log-p diagram, Minneapolis, MN at 00:00Z on 2006-10-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 746 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 2006-10-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 296 square meters per square second.19395878Sfc1 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
746 J/kg
Mixed-layer CIN
-217 J/kg
Mixed-layer LCL
880 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
296 m²/s²
0-3 km storm-relative helicity
530 m²/s²
Significant tornado parameter
0.0
Supercell composite
23.9

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KMPX 040333
SVRMPX
MNC079-040415-
/O.NEW.KMPX.SV.W.0253.061004T0333Z-061004T0415Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1033 PM CDT TUE OCT 3 2006

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  LE SUEUR COUNTY IN SOUTH CENTRAL MINNESOTA...

* UNTIL 1115 PM CDT

* AT 1031 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM...  
 CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED NEAR 
 LE SUEUR...OR ABOUT 12 MILES NORTH OF ST PETER...AND MOVING EAST    
 AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MONTGOMERY...
  HEIDELBERG...

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT WEDNESDAY
MORNING FOR SOUTHERN MINNESOTA AND WEST CENTRAL WISCONSIN.

LAT...LON 4453 9389 4441 9394 4440 9353 4455 9354

$$

JPR/MDB
1 follow-up statement
000 
WWUS53 KMPX 040400
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1101 PM CDT TUE OCT 3 2006

MNC079-040411-
/O.CAN.KMPX.SV.W.0253.000000T0000Z-061004T0415Z/
LE SUEUR MN-
1101 PM CDT TUE OCT 3 2006

...THE SEVERE THUNDERSTORM WARNING FOR LE SUEUR COUNTY IS
CANCELLED...

RADAR INDICATED THAT THE SEVERE THUNDERSTORM HAD MOVED OUT OF THE
WARNED AREA. THUS THE WARNING HAS BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT WEDNESDAY
MORNING FOR SOUTHERN MINNESOTA AND WEST CENTRAL WISCONSIN.

LAT...LON 4453 9389 4441 9394 4440 9353 4455 9354

$$

JPR/MDB

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 3, 10:04 PM CDTSevere Thunderstorm WarningMPXDakota, Hennepin26 min
Oct 3, 10:44 PM CDTSevere Thunderstorm WarningMPXScott46 min
Oct 3, 10:49 PM CDTSevere Thunderstorm WarningMPXAnoka, Hennepin, Sherburne, Wright56 min
Oct 3, 11:10 PM CDTSevere Thunderstorm WarningMPXDakota50 min
Oct 3, 11:29 PM CDTSevere Thunderstorm WarningMPXScott34 min
Oct 3, 11:32 PM CDTSevere Thunderstorm WarningMPXWashington28 min
Oct 3, 11:59 PM CDTSevere Thunderstorm WarningMPXDakota46 min
Oct 4, 12:17 AM CDTSevere Thunderstorm WarningMPXLe Sueur, Rice58 min
Oct 4, 1:26 AM CDTSevere Thunderstorm WarningMPXMartin49 min
Oct 4, 1:49 AM CDTSevere Thunderstorm WarningMPXBlue Earth, Watonwan41 min
Oct 4, 2:00 AM CDTSevere Thunderstorm WarningMPXFaribault60 min
Oct 4, 2:35 AM CDTSevere Thunderstorm WarningMPXSteele, Waseca37 min
Oct 4, 2:43 AM CDTSevere Thunderstorm WarningMPXFreeborn62 min
Oct 4, 2:29 PM CDTFrost AdvisoryMPXAnoka, Benton, Chisago, Douglas, Isanti, Kanabec and 12 more15 hr

Nearby

Severe Thunderstorm Warnings in Minnesota, 2006Every severe thunderstorm warning in 2006

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.