Alert archive / North Dakota / Tornado Warnings in 2004

Tornado Warning 17, NWS Grand Forks, ND

May 19, 2004Cavalier County, Pembina County, North Dakota

NWS Grand Forks, ND issued this tornado warning at May 19, 2004, 6:45 PM CDT for Cavalier County, Pembina County, North Dakota. It was in force for 60 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, 6:45 PM CDT (23:45 UTC)
Expired
May 19, 2004, 7:45 PM CDT
In force
60 min
Issued by
NWS Grand Forks, ND
Area
Counties, with a storm outline in the text

Counties Cavalier County, ND, Pembina County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 132 km from the middle of the area, began a volume at 23:46 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.

IssuedProductOfficeLasted
May 19, 2:15 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 11.8 hours before the alert went out and 304 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 12:00Z on 2004-05-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Bismarck Municip, ND at 12:00Z on 2004-05-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 373 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
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.

363 
WFUS53 KFGF 192345
TORFGF
NDC019-067-200045-

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

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...

  SOUTHEASTERN CAVALIER COUNTY IN NORTHEAST NORTH DAKOTA
  SOUTHERN PEMBINA COUNTY IN NORTHEAST NORTH DAKOTA

* UNTIL 745 PM CDT.

* AT 642 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION 2 MILES SOUTH OF MILTON...
  OR ABOUT 18 MILES SOUTHEAST OF LANGDON...MOVING TO THE EAST AT 50
  MPH.

* THE TORNADO WILL BE NEAR...

  GARDAR AT 650 PM...
  HENSEL AT 700 PM...
  ST. THOMAS AT 715 PM AND
  JOLIETTE AT 725 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 4869 9816 4856 9816 4861 9719 4882 9721

$$

DK/ME

The office that day

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

IssuedProductOfficeCountiesLasted
May 19, 4:46 PM CDTTornado WarningFGFGriggs44 min
May 19, 5:07 PM CDTTornado WarningFGFTowner53 min
May 19, 5:11 PM CDTTornado WarningFGFGrand Forks, Nelson49 min
May 19, 5:23 PM CDTSevere Thunderstorm WarningFGFRamsey52 min
May 19, 5:44 PM CDTTornado WarningFGFCavalier, Ramsey61 min
May 19, 5:56 PM CDTTornado WarningFGFGrand Forks49 min
May 19, 5:57 PM CDTTornado WarningFGFPembina48 min
May 19, 6:08 PM CDTSevere Thunderstorm WarningFGFWalsh52 min
May 19, 6:27 PM CDTTornado WarningFGFWalsh48 min
May 19, 6:43 PM CDTTornado WarningFGFGrand Forks47 min

Nearby

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