Alert archive / Minnesota / Tornado Warnings in 2002

Tornado Warning 7, NWS Grand Forks, ND

July 7, 2002Otter Tail County, Minnesota

NWS Grand Forks, ND issued this tornado warning at Jul 7, 2002, 1:29 PM CDT for Otter Tail 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
Jul 7, 2002, 1:29 PM CDT (18:29 UTC)
Expired
Jul 7, 2002, 2:15 PM CDT
In force
46 min
Issued by
NWS Grand Forks, ND
Area
Counties, with a storm outline in the text

County Otter Tail County, MN

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 6.5 hours before the alert went out and 215 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 2002-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 579 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 2002-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -2 square meters per square second.1939Sfc1 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
579 J/kg
Mixed-layer CIN
-140 J/kg
Mixed-layer LCL
1033 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
-2 m²/s²
0-3 km storm-relative helicity
18 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KFGF 071829
TORFAR
MNC111-071915-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
129 PM CDT SUN JUL 7 2002

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...

  OTTER TAIL COUNTY IN WEST CENTRAL MINNESOTA.

* UNTIL 215 PM CDT.

* AT 125 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION 7 MILES SOUTH OF VINING...
  OR ABOUT 27 MILES EAST OF FERGUS FALLS...MOVEMENT WAS TO THE
  NORTHEAST AT 20 MPH.

* THE TORNADO WILL BE NEAR...

  VINING AT 135 PM...
  ALMORA AT 150 PM...
  HENNING AT 155 PM AND
  WRIGHTSTOWN AT 205 PM.

THIS IS A DANGEROUS STORM. IF YOU ARE IN THE PATH OF THIS TORNADO
ABANDON CARS AND MOBILE HOMES FOR A STURDY BUILDING.

LAT...LON 4619 9570 4614 9542 4629 9516 4652 9540


30
NNNN

The office that day

Everything else NWS Grand Forks, ND issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 7, 10:35 AM CDTFlash Flood WarningFGFMarshall6 hr
Jul 7, 1:32 PM CDTSevere Thunderstorm WarningFGFBeltrami, Lake of the Woods43 min
Jul 7, 2:20 PM CDTTornado WarningFGFOtter Tail25 min
Jul 7, 2:49 PM CDTTornado WarningFGFOtter Tail41 min
Jul 7, 5:42 PM CDTSevere Thunderstorm WarningFGFOtter Tail48 min
Jul 7, 6:28 PM CDTSevere Thunderstorm WarningFGFWadena47 min

Nearby

Tornado Warnings in Minnesota, 2002Every tornado warning in 2002Tornadoes in 2002

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.