Alert archive / Minnesota / Tornado Warnings in 2004

Tornado Warning 23, NWS Twin Cities, MN

June 11, 2004Blue Earth County, Minnesota

NWS Twin Cities, MN issued this tornado warning at Jun 11, 2004, 4:50 PM CDT for Blue Earth County, Minnesota. It was in force for 40 min. 4 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jun 11, 2004, 4:50 PM CDT (21:50 UTC)
Expired
Jun 11, 2004, 5:30 PM CDT
In force
40 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), 105 km from the middle of the area, began a volume at 21:52 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.

What was reported inside it

TimeReportWhereRemark
Jun 11, 5:02 PM CDTHAIL 1Mapleton, MN
Jun 11, 5:13 PM CDTFUNNEL CLOUD2 S Pemberton, MN
Jun 11, 5:13 PM CDTFUNNEL CLOUD2 S Pemberton, MN
Jun 11, 5:23 PM CDTHAIL 0.75Pemberton, MN

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

IssuedProductOfficeLasted
Jun 11, 1:45 PM CDTTornado WatchSPC5 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 9.8 hours before the alert went out and 104 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 12:00Z on 2004-06-11Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2004-06-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -29 square meters per square second.193958Sfc1 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
572 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
-29 m²/s²
0-3 km storm-relative helicity
16 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KMPX 112150
TORMPX
MNC013-112230-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
449 PM CDT FRI JUN 11 2004

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

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

* UNTIL 530 PM CDT

* AT 448 PM CDT...RADAR INDICATED A STORM CAPABLE OF PRODUCING A
  TORNADO...6 MILES SOUTH OF MAPLETON...OR ABOUT 16 MILES
  NORTHEAST OF BLUE EARTH...MOVING NORTHEAST AT 30 MPH.  A TORNADO
  WAS ALSO REPORTED MIDWAY BETWEEN DELAVAN AND EASTON AT 448 PM...
  HEADING FOR THE AREA SOUTH AND SOUTHEAST OF MAPLETON.

* LOCATIONS IMPACTED INCLUDE...
  MAPLETON.
  PEMBERTON.
  ST CLAIR.

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.

LAT...LON 4385 9409 4386 9387 4397 9377 4418 9378

$$

MARGRAF

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 11, 2:19 PM CDTSevere Thunderstorm WarningMPXRedwood41 min
Jun 11, 2:46 PM CDTSevere Thunderstorm WarningMPXYellow Medicine44 min
Jun 11, 2:58 PM CDTSevere Thunderstorm WarningMPXRedwood62 min
Jun 11, 3:11 PM CDTSevere Thunderstorm WarningMPXRenville64 min
Jun 11, 4:11 PM CDTSevere Thunderstorm WarningMPXKandiyohi, McLeod, Meeker, Renville64 min
Jun 11, 4:21 PM CDTSevere Thunderstorm WarningMPXMartin54 min
Jun 11, 4:28 PM CDTSevere Thunderstorm WarningMPXFaribault62 min
Jun 11, 4:41 PM CDTSevere Thunderstorm WarningMPXSibley64 min
Jun 11, 4:42 PM CDTTornado WarningMPXFaribault33 min
Jun 11, 5:06 PM CDTTornado WarningMPXWaseca39 min
Jun 11, 5:16 PM CDTSevere Thunderstorm WarningMPXWright59 min
Jun 11, 5:26 PM CDTSevere Thunderstorm WarningMPXNicollet49 min
Jun 11, 5:40 PM CDTTornado WarningMPXFreeborn, Steele35 min
Jun 11, 5:46 PM CDTSevere Thunderstorm WarningMPXWaseca44 min
Jun 11, 6:04 PM CDTSevere Thunderstorm WarningMPXDakota, Hennepin, Ramsey56 min
Jun 11, 6:09 PM CDTSevere Thunderstorm WarningMPXRice51 min
Jun 11, 6:24 PM CDTSevere Thunderstorm WarningMPXGoodhue51 min

Nearby

Tornado Warnings in Minnesota, 2004Every tornado warning in 2004Tornadoes in 2004

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.