Alert archive / North Dakota / Tornado Warnings in 2004

Tornado Warning 16, NWS Grand Forks, ND

May 19, 2004Grand Forks County, North Dakota; Polk County, Minnesota

NWS Grand Forks, ND issued this tornado warning at May 19, 2004, 6:43 PM CDT for Grand Forks County, North Dakota; Polk County, Minnesota. It was in force for 47 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, 6:43 PM CDT (23:43 UTC)
Expired
May 19, 2004, 7:30 PM CDT
In force
47 min
Issued by
NWS Grand Forks, ND
Area
Counties, with a storm outline in the text

Counties Polk County, MN, Grand Forks County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 47 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

International Fa, MN (KINL), launched 12:00Z, 11.7 hours before the alert went out and 277 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, International Fa, MN 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, International Fa, MN at 12:00Z on 2004-05-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -26 square meters per square second.1939587897117Sfc1 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
2498 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
-26 m²/s²
0-3 km storm-relative helicity
-21 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 192343
TORFGF
MNC119-NDC035-200030-

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

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...

  WESTERN POLK COUNTY IN NORTHWEST MINNESOTA
  EXTREME SOUTHEASTERN GRAND FORKS COUNTY IN NORTHEAST NORTH DAKOTA

* UNTIL 730 PM CDT.

* AT 638 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION 5 MILES SOUTHWEST OF
  BYGLAND...OR ABOUT 10 MILES SOUTH OF GRAND FORKS...MOVING TO THE
  EAST AT 30 MPH.

* THE TORNADO WILL BE NEAR...

  DAVIDSON AT 645 PM...
  FISHER AT 650 PM...
  CROOKSTON AT 700 PM AND
  HAROLD AT 705 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 4786 9708 4768 9706 4766 9649 4797 9655

$$

VOELKER/04

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, 6:45 PM CDTTornado WarningFGFCavalier, Pembina60 min
May 19, 6:40 PM CDTTornado WarningFGFKittson65 min

Nearby

Tornado Warnings in North Dakota, 2004Tornado Warnings in Minnesota, 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.