Alert archive / Minnesota / Tornado Warnings in 2006

Tornado Warning 8, NWS Twin Cities, MN

August 1, 2006Blue Earth County, Minnesota

NWS Twin Cities, MN issued this tornado warning at Aug 1, 2006, 8:07 PM CDT for Blue Earth 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
Aug 1, 2006, 8:07 PM CDT (01:07 UTC)
Expired
Aug 1, 2006, 8:45 PM CDT
In force
38 min
Issued by
NWS Twin Cities, MN
Area
Counties, with a storm outline in the text

County Blue Earth County, MN

The radar

The Minneapolis radar (KMPX), 107 km from the middle of the area, began a volume at 01:07 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
Aug 1, 8:00 PM CDTTornado WatchSPC5 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 1.1 hours before the alert went out and 106 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 2006-08-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 778 joules per kilogram.LCLEL10008507005003002001001 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 2006-08-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 215 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
778 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
476 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
215 m²/s²
0-3 km storm-relative helicity
479 m²/s²
Significant tornado parameter
1.1
Supercell composite
7.9

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KMPX 020108
TORMPX
MNC013-020145-
/O.NEW.KMPX.TO.W.0008.060802T0107Z-060802T0145Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
807 PM CDT TUE AUG 1 2006

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  BLUE EARTH COUNTY IN SOUTH CENTRAL MINNESOTA...

* UNTIL 845 PM CDT

* AT 803 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A FUNNEL CLOUD 26
  MILES WEST OF VERNON CENTER...OR ABOUT 9 MILES SOUTHEAST OF 
  ST JAMES NEAR LEWISVILLE.  RADAR SHOWED THE SEVERE STORM...AND     
  MOVING EAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MAPLETON...
  AMBOY...
  WILLOW CREEK...
  STERLING CENTER...
 
THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 4407 9436 4385 9437 4385 9389 4410 9388

$$
1 follow-up statement
000 
WWUS53 KMPX 020140
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
837 PM CDT TUE AUG 1 2006

MNC013-020147-
/O.EXP.KMPX.TO.W.0008.000000T0000Z-060802T0145Z/
BLUE EARTH MN-
837 PM CDT TUE AUG 1 2006

...THE TORNADO WARNING FOR BLUE EARTH COUNTY EXPIRES AT 845 PM CDT...

THE THUNDERSTORM OVER SOUTHWEST BLUE EARTH COUNTY HAS WEAKENED AND NO 
LONGER LOOKED CAPABLE OF PRODUCING A TORNADO. 

HOWEVER...A STRONG THUNDERSTORM REMAINS IN SOUTHWEST BLUE EARTH 
COUNTY....WEST OF AMBOY.  IT WAS MOVING TO THE EAST AT 25 MPH AND 
WILL MOVE THROUGH GOOD THUNDER AND VERNON CENTER AREAS THROUGH 9 PM.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CDT WEDNESDAY MORNING
FOR SOUTH CENTRAL MINNESOTA.

LAT...LON 4407 9436 4385 9437 4385 9389 4410 9388

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 1, 7:03 PM CDTTornado WarningMPXWatonwan42 min
Aug 1, 7:39 PM CDTTornado WarningMPXWatonwan51 min
Aug 1, 7:46 PM CDTSevere Thunderstorm WarningMPXMartin59 min
Aug 1, 8:31 PM CDTSevere Thunderstorm WarningMPXFaribault44 min
Aug 1, 9:14 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Faribault, Freeborn, Waseca61 min
Aug 1, 9:22 PM CDTFlash Flood WarningMPXFaribault, Freeborn, Martin3 hr
Aug 1, 11:54 PM CDTFlash Flood WarningMPXFaribault, Freeborn, Martin2 hr

Nearby

Tornado Warnings in Minnesota, 2006Every tornado warning in 2006Tornadoes 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.