Alert archive / North Dakota / Tornado Warnings in 2004

Tornado Warning 26, NWS Grand Forks, ND

June 11, 2004Steele County, North Dakota

NWS Grand Forks, ND issued this tornado warning at Jun 11, 2004, 7:16 PM CDT for Steele County, North Dakota. It was in force for 44 min. 1 report 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, 7:16 PM CDT (00:16 UTC)
Expired: Jun 11, 2004, 8:00 PM CDT
In force: 44 min
Issued by: NWS Grand Forks, ND
Area: Counties, with a storm outline in the text

County Steele County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 40 km from the middle of the area, began a volume at 00:18 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

Time	Report	Where	Remark
Jun 11, 7:17 PM CDT	HAIL 1	6 N Luverne, ND

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.

Issued	Product	Office	Lasted
Jun 11, 6:40 PM CDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 0.3 hours before the alert went out and 229 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1339 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 78 m²/s²
0-3 km storm-relative helicity: 85 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.

050 
WFUS53 KFGF 120016
TORFGF
NDC091-120100-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
716 PM CDT FRI JUN 11 2004

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...

  STEELE COUNTY IN SOUTHEAST NORTH DAKOTA

* UNTIL 800 PM CDT.

* AT 710 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION 8 MILES SOUTHWEST OF
  BLABON...OR ABOUT 28 MILES NORTH OF VALLEY CITY...MOVING TO THE
  NORTHEAST AT 25 MPH.

* THE TORNADO WILL BE NEAR...

  BLABON AT 725 PM...
  HOPE AT 730 PM AND
  SHERBROOKE AT 740 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 4746 9797 4727 9791 4730 9756 4758 9774

$$

VOELKER/04

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 11, 7:14 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Towner	31 min
Jun 11, 7:37 PM CDT	Severe Thunderstorm Warning	FGF	Barnes	23 min
Jun 11, 7:40 PM CDT	Severe Thunderstorm Warning	FGF	Nelson, Ramsey	50 min
Jun 11, 7:59 PM CDT	Severe Thunderstorm Warning	FGF	Steele	46 min
Jun 11, 8:10 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Traill	50 min

Nearby

Tornado Warnings in North Dakota, 2004 Every tornado warning in 2004 Tornadoes 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.