Alert archive / North Dakota / Tornado Warnings in 2008

Tornado Warning 26, NWS Grand Forks, ND

July 7, 2008Griggs County, Nelson County, Steele County, North Dakota

NWS Grand Forks, ND issued this tornado warning at Jul 7, 2008, 4:55 PM CDT for Griggs County, Nelson County, Steele County, North Dakota. It was in force for 35 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 7, 2008, 4:55 PM CDT (21:55 UTC)
Expired
Jul 7, 2008, 5:30 PM CDT
In force
35 min
Issued by
NWS Grand Forks, ND
Area
Storm-based polygon

Counties Griggs County, ND, Nelson County, ND, Steele County, ND

The watch it was issued in

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

IssuedProductOfficeLasted
Jul 7, 3:26 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 9.9 hours before the alert went out and 227 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 2008-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 247 joules per kilogram.LCLLFCEL10008507005003002001001 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 2008-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 43 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
247 J/kg
Mixed-layer CIN
-38 J/kg
Mixed-layer LCL
693 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
43 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 072155
TORFGF
NDC039-063-091-072230-
/O.NEW.KFGF.TO.W.0026.080707T2155Z-080707T2230Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
455 PM CDT MON JUL 7 2008

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN NELSON COUNTY IN NORTHEAST NORTH DAKOTA...
  NORTHEASTERN GRIGGS COUNTY IN SOUTHEAST NORTH DAKOTA...
  NORTHWESTERN STEELE COUNTY IN SOUTHEAST NORTH DAKOTA...

* UNTIL 530 PM CDT

* AT 454 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 3 MILES SOUTH OF
  MCVILLE...OR 43 MILES SOUTHEAST OF DEVILS LAKE...MOVING TO THE EAST
  AT 32 MPH.

* THE TORNADO WILL BE NEAR...
  KLOTEN AT 500 PM CDT...
  ANETA AT 510 PM CDT...
  7 MILES NORTH OF SHARON AT 520 PM CDT...

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 900 PM CDT MONDAY
EVENING FOR NORTHWESTERN MINNESOTA AND EASTERN NORTH DAKOTA.

LAT...LON 4780 9789 4759 9789 4764 9831 4782 9828
TIME...MOT...LOC 2155Z 277DEG 28KT 4772 9815

$$

HOPKINS
2 follow-up statements
000 
WWUS53 KFGF 072210
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
510 PM CDT MON JUL 7 2008

NDC039-063-091-072230-
/O.CON.KFGF.TO.W.0026.000000T0000Z-080707T2230Z/
GRIGGS ND-STEELE ND-NELSON ND-
510 PM CDT MON JUL 7 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 PM CDT FOR
NORTHEASTERN GRIGGS...SOUTHEASTERN NELSON AND NORTHWESTERN STEELE
COUNTIES...

AT 508 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THE TORNADO WAS LOCATED
2 MILES NORTH OF ANETA...OR 46 MILES WEST OF GRAND FORKS...MOVING TO
THE EAST AT 32 MPH.

* THE TORNADO WILL BE ABOUT...
  7 MILES NORTH OF SHARON BY 520 PM CDT...

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 900 PM CDT MONDAY
EVENING FOR NORTHWESTERN MINNESOTA AND EASTERN NORTH DAKOTA.

LAT...LON 4780 9819 4780 9789 4759 9789 4761 9804
      4761 9805 4761 9809 4762 9810 4762 9815
      4763 9819
TIME...MOT...LOC 2210Z 277DEG 28KT 4770 9798

$$

HOPKINS
000 
WWUS53 KFGF 072220
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
520 PM CDT MON JUL 7 2008

NDC039-063-072230-
/O.CAN.KFGF.TO.W.0026.000000T0000Z-080707T2230Z/
GRIGGS ND-NELSON ND-
520 PM CDT MON JUL 7 2008

...THE TORNADO WARNING FOR NORTHEASTERN GRIGGS AND SOUTHEASTERN
NELSON COUNTIES IS CANCELLED...

AT 520 PM CDT...TORNADO MOVED OUT OF THE WARNED AREA IN NORTHEASTERN
GRIGGS AND SOUTHEASTERN NELSON COUNTIES. SO THE WARNING HAS BEEN
CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM CDT MONDAY
EVENING FOR NORTHWESTERN MINNESOTA AND EASTERN NORTH DAKOTA.

LAT...LON 4766 9789 4759 9789 4759 9790 4759 9794
      4760 9795 4760 9797 4767 9797
TIME...MOT...LOC 2220Z 282DEG 29KT 4763 9787

$$

NDC091-072230-
/O.CON.KFGF.TO.W.0026.000000T0000Z-080707T2230Z/
STEELE ND-
520 PM CDT MON JUL 7 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 PM CDT FOR
NORTHWESTERN STEELE COUNTY...

AT 517 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THE TORNADO WAS LOCATED
3 MILES NORTH OF SHARON...OR 43 MILES SOUTHWEST OF GRAND FORKS...
MOVING TO THE EAST AT 33 MPH.

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 900 PM CDT MONDAY
EVENING FOR NORTHWESTERN MINNESOTA AND EASTERN NORTH DAKOTA.

LAT...LON 4766 9789 4759 9789 4759 9790 4759 9794
      4760 9795 4760 9797 4767 9797
TIME...MOT...LOC 2220Z 282DEG 29KT 4763 9787

$$

HOPKINS

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 7, 11:01 AM CDTSevere Thunderstorm WarningFGFCass26 min
Jul 7, 11:17 AM CDTSevere Thunderstorm WarningFGFCass26 min
Jul 7, 2:38 PM CDTSevere Thunderstorm WarningFGFBenson, Ramsey67 min
Jul 7, 3:20 PM CDTTornado WarningFGFTowner55 min
Jul 7, 3:46 PM CDTSevere Thunderstorm WarningFGFBenson, Eddy, Ramsey59 min
Jul 7, 4:10 PM CDTTornado WarningFGFCavalier, Towner65 min
Jul 7, 4:42 PM CDTSevere Thunderstorm WarningFGFGriggs, Nelson63 min
Jul 7, 5:13 PM CDTTornado WarningFGFCavalier, Pembina62 min
Jul 7, 5:16 PM CDTSevere Thunderstorm WarningFGFBarnes42 min
Jul 7, 5:27 PM CDTTornado WarningFGFSteele33 min
Jul 7, 5:52 PM CDTTornado WarningFGFSteele, Traill23 min
Jul 7, 6:00 PM CDTSevere Thunderstorm WarningFGFPembina60 min
Jul 7, 6:01 PM CDTSevere Thunderstorm WarningFGFCass59 min
Jul 7, 6:18 PM CDTSevere Thunderstorm WarningFGFTraill28 min
Jul 7, 6:26 PM CDTTornado WarningFGFWalsh64 min
Jul 7, 6:49 PM CDTSevere Thunderstorm WarningFGFCass56 min

Nearby

Tornado Warnings in North Dakota, 2008Every tornado warning in 2008Tornadoes in 2008

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.