Alert archive / North Dakota / Tornado Warnings in 2005

Tornado Warning 74, NWS Grand Forks, ND

July 10, 2005Benson County, North Dakota

NWS Grand Forks, ND issued this tornado warning at Jul 10, 2005, 7:15 PM CDT for Benson County, North Dakota. It was in force for 28 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
Jul 10, 2005, 7:15 PM CDT (00:15 UTC)
Expired
Jul 10, 2005, 7:43 PM CDT
In force
28 min
Issued by
NWS Grand Forks, ND
Area
Counties, with a storm outline in the text

County Benson County, ND

The watch it was issued in

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

IssuedProductOfficeLasted
Jul 10, 5:15 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 0.3 hours before the alert went out and 164 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 00:00Z on 2005-07-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4621 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 2005-07-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 155 square meters per square second.193958Sfc1 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
4621 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
1484 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
155 m²/s²
0-3 km storm-relative helicity
190 m²/s²
Significant tornado parameter
2.5
Supercell composite
22.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WFUS53 KFGF 110015
TORFGF
NDC005-110115-
/O.NEW.KFGF.TO.W.0074.050711T0015Z-050711T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
715 PM CDT SUN JUL 10 2005

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...
  WESTERN BENSON COUNTY IN NORTHEAST NORTH DAKOTA

* UNTIL 815 PM CDT

* AT 711 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE
  THUNDERSTORM WITH STRONG ROTATION 6 MILES SOUTHEAST OF ESMOND...OR
  38 MILES WEST OF DEVILS LAKE...MOVING TO THE NORTHEAST AT 15 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  7 MILES NORTHWEST OF MADDOCK AT 735 PM
  7 MILES SOUTH OF BAKER AND 8 MILES SOUTHWEST OF HARLOW AT 815 PM

IF YOU ARE IN THE PATH OF THIS TORNADO ABANDON CARS AND MOBILE HOMES
FOR A STURDY BUILDING.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT
MONDAY MORNING FOR NORTHEAST NORTH DAKOTA.

LAT...LON 4792 9979 4791 9952 4820 9930 4829 9971

$$

JA/DM
1 follow-up statement
000 
WWUS53 KFGF 110043
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
743 PM CDT SUN JUL 10 2005

NDC005-110053-
/O.CAN.KFGF.TO.W.0074.000000T0000Z-050711T0115Z/
BENSON ND-
743 PM CDT SUN JUL 10 2005

...THE TORNADO WARNING FOR WESTERN BENSON COUNTY IS CANCELLED...

AT 743 PM CDT...THE TORNADO IN WESTERN BENSON COUNTY HAS DISSIPATED.
SO THE WARNING HAS BEEN CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT
MONDAY MORNING FOR NORTHEAST NORTH DAKOTA.

LAT...LON 4792 9979 4791 9952 4820 9930 4829 9971

$$
JCA

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 10, 7:48 PM CDTSevere Thunderstorm WarningFGFTowner23 min
Jul 10, 8:44 PM CDTSevere Thunderstorm WarningFGFBenson61 min
Jul 10, 9:05 PM CDTTornado WarningFGFBenson56 min
Jul 10, 9:49 PM CDTTornado WarningFGFRamsey, Towner56 min
Jul 10, 9:58 PM CDTSevere Thunderstorm WarningFGFTowner62 min
Jul 10, 10:23 PM CDTTornado WarningFGFCavalier67 min
Jul 10, 10:56 PM CDTSevere Thunderstorm WarningFGFBenson, Towner64 min
Jul 11, 5:56 AM CDTFlash Flood WarningFGFWalsh11 hr

Nearby

Tornado Warnings in North Dakota, 2005Every tornado warning in 2005Tornadoes in 2005

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.