Alert archive / North Dakota / Tornado Warnings in 2004

Tornado Warning 51, NWS Grand Forks, ND

August 8, 2004Pembina County, North Dakota

NWS Grand Forks, ND issued this tornado warning at Aug 8, 2004, 4:09 PM CDT for Pembina County, North Dakota. It was in force for 51 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: Aug 8, 2004, 4:09 PM CDT (21:09 UTC)
Expired: Aug 8, 2004, 5:00 PM CDT
In force: 51 min
Issued by: NWS Grand Forks, ND
Area: Counties, with a storm outline in the text

County Pembina County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 158 km from the middle of the area, began a volume at 21:12 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
Aug 8, 4:18 PM CDT	TORNADO	1 S Neche, ND	TORNADO MOVING TOWARD RIVER SOUTHEAST OF NECHE

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
Aug 8, 12:55 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

International Fa, MN (KINL), launched 12:00Z, 9.2 hours before the alert went out and 312 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: 487 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 7 m²/s²
0-3 km storm-relative helicity: 43 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 082109
TORFGF
NDC067-082200-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
408 PM CDT SUN AUG 8 2004

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...

  NORTH CENTRAL PEMBINA COUNTY IN NORTHEAST NORTH DAKOTA

* UNTIL 500 PM CDT.

* AT 403 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION 4 MILES NORTHWEST OF
  BATHGATE...OR ABOUT 35 MILES NORTH OF GRAFTON...MOVING TO THE
  NORTHEAST AT 15 MPH.

* THE TORNADO WILL BE NEAR...

  BATHGATE AT 415 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 4896 9771 4880 9758 4889 9723 4912 9734

$$

TJG/PAB

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 8, 3:34 PM CDT	Severe Thunderstorm Warning	FGF	Eddy, Griggs	41 min
Aug 8, 4:58 PM CDT	Tornado Warning	FGF	Pembina	32 min
Aug 8, 5:23 PM CDT	Severe Thunderstorm Warning	FGF	Walsh	52 min
Aug 8, 5:29 PM CDT	Tornado Warning	FGF	Pembina	46 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.