Alert archive / North Dakota / Tornado Warnings in 2004

Tornado Warning 12, NWS Grand Forks, ND

May 19, 2004Grand Forks County, North Dakota

NWS Grand Forks, ND issued this tornado warning at May 19, 2004, 5:56 PM CDT for Grand Forks County, North Dakota. It was in force for 49 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: May 19, 2004, 5:56 PM CDT (22:56 UTC)
Expired: May 19, 2004, 6:45 PM CDT
In force: 49 min
Issued by: NWS Grand Forks, ND
Area: Counties, with a storm outline in the text

County Grand Forks County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 29 km from the middle of the area, began a volume at 22:56 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.

The watch it was issued in

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

Issued	Product	Office	Lasted
May 19, 2:15 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 10.9 hours before the alert went out and 268 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: 684 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 373 m²/s²
0-3 km storm-relative helicity: 363 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.

705 
WFUS53 KFGF 192256
TORFGF
NDC035-192345-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
555 PM CDT WED MAY 19 2004

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...

  SOUTHERN GRAND FORKS COUNTY IN NORTHEAST NORTH DAKOTA

* UNTIL 645 PM CDT.

* AT 552 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION 3 MILES WEST OF
  NORTHWOOD...OR ABOUT 29 MILES SOUTHWEST OF GRAND FORKS...MOVING TO
  THE EAST AT 30 MPH.

* THE TORNADO WILL BE NEAR...
  NORTHWOOD AT 600 PM
  HOLMES AT 620 PM AND
  THOMPSON AT 635 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 4780 9779 4769 9779 4770 9696 4787 9704

$$

VOELKER/04

The office that day

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

Issued	Product	Office	Counties	Lasted
May 19, 4:46 PM CDT	Tornado Warning	FGF	Griggs	44 min
May 19, 5:07 PM CDT	Tornado Warning	FGF	Towner	53 min
May 19, 5:11 PM CDT	Tornado Warning	FGF	Grand Forks, Nelson	49 min
May 19, 5:23 PM CDT	Severe Thunderstorm Warning	FGF	Ramsey	52 min
May 19, 5:44 PM CDT	Tornado Warning	FGF	Cavalier, Ramsey	61 min
May 19, 5:57 PM CDT	Tornado Warning	FGF	Pembina	48 min
May 19, 6:08 PM CDT	Severe Thunderstorm Warning	FGF	Walsh	52 min
May 19, 6:27 PM CDT	Tornado Warning	FGF	Walsh	48 min
May 19, 6:43 PM CDT	Tornado Warning	FGF	Grand Forks	47 min
May 19, 6:45 PM CDT	Tornado Warning	FGF	Cavalier, Pembina	60 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.