Alert archive / North Dakota / Tornado Warnings in 2003

Tornado Warning 12, NWS Grand Forks, ND

June 27, 2003Towner County, North Dakota

NWS Grand Forks, ND issued this tornado warning at Jun 27, 2003, 7:32 PM CDT for Towner County, North Dakota. It was in force for 43 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
Jun 27, 2003, 7:32 PM CDT (00:32 UTC)
Expired
Jun 27, 2003, 8:15 PM CDT
In force
43 min
Issued by
NWS Grand Forks, ND
Area
Counties, with a storm outline in the text

County Towner County, ND

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 0.5 hours before the alert went out and 221 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, Bismarck Municip, ND at 00:00Z on 2003-06-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 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, Bismarck Municip, ND at 00:00Z on 2003-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 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
1 J/kg
Mixed-layer CIN
-36 J/kg
Mixed-layer LCL
1991 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
60 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.

207 
WFUS53 KFGF 280032
TORFGF
NDC095-280115-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
731 PM CDT FRI JUN 27 2003

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...

  SOUTHERN TOWNER COUNTY IN NORTHEAST NORTH DAKOTA.

* UNTIL 815 PM CDT.

* AT 728 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION 6 MILES SOUTHWEST OF
  CONSIDINE...OR ABOUT 34 MILES NORTHWEST OF DEVILS LAKE...MOVEMENT
  WAS TO THE SOUTHEAST AT 15 MPH.

* THE TORNADO WILL BE NEAR...

  5 MILES EAST OF CANDO AT 745 PM.

THIS STORM HAS PRODUCED TORNADO TOUGHDOWNS. HAIL UP TO THE SIZE OF 
GOLFBALLS IS ALSO POSSIBLE.

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 4862 9922 4850 9946 4840 9936 4840 9902

$$

DONAVON

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 27, 7:44 PM CDTSevere Thunderstorm WarningFGFBenson, Ramsey46 min
Jun 27, 8:09 PM CDTTornado WarningFGFBenson, Ramsey51 min
Jun 27, 8:33 PM CDTSevere Thunderstorm WarningFGFEddy27 min
Jun 27, 9:01 PM CDTTornado WarningFGFEddy, Griggs44 min
Jun 28, 3:47 PM CDTSevere Thunderstorm WarningFGFPembina43 min
Jun 28, 5:23 PM CDTSevere Thunderstorm WarningFGFGrand Forks37 min
Jun 28, 6:14 PM CDTSevere Thunderstorm WarningFGFGrand Forks46 min

Nearby

Tornado Warnings in North Dakota, 2003Every tornado warning in 2003Tornadoes in 2003

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.