Alert archive / North Dakota / Tornado Warnings in 2008

Tornado Warning 27, NWS Grand Forks, ND

July 7, 2008Cavalier County, Pembina County, North Dakota

NWS Grand Forks, ND issued this tornado warning at Jul 7, 2008, 5:13 PM CDT for Cavalier County, Pembina County, North Dakota. It was in force for 62 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jul 7, 2008, 5:13 PM CDT (22:13 UTC)
Expired
Jul 7, 2008, 6:15 PM CDT
In force
62 min
Issued by
NWS Grand Forks, ND
Area
Storm-based polygon

Counties Cavalier County, ND, Pembina County, ND

What was reported inside it

TimeReportWhereRemark
Jul 7, 5:29 PM CDTFUNNEL CLOUD10 E Langdon, NDESTIMATED 10 MILES EAST OF LANGDON...STANDING ON TOP OF A HILL.
Jul 7, 5:53 PM CDTHAIL 0.88Mountain, NDNICKEL SIZED HAIL FELL FOR 5 MINUTES WITH HEAVY RAIN.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

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, 10.2 hours before the alert went out and 303 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 072212
TORFGF
NDC019-067-072315-
/O.NEW.KFGF.TO.W.0027.080707T2213Z-080707T2315Z/

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

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN CAVALIER COUNTY IN NORTHEAST NORTH DAKOTA...
  THIS INCLUDES THE CITY OF LANGDON...
  WESTERN PEMBINA COUNTY IN NORTHEAST NORTH DAKOTA...

* UNTIL 615 PM CDT

* AT 508 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 3 MILES
  SOUTHEAST OF LANGDON...MOVING TO THE EAST AT 41 MPH.

* THE TORNADO WILL BE NEAR...
  OSNABROCK AT 520 PM CDT...
  OLGA AT 530 PM CDT...
  CONCRETE AT 535 PM CDT...
  MOUNTAIN AT 540 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 4896 9762 4855 9756 4855 9855 4893 9853
TIME...MOT...LOC 2213Z 273DEG 36KT 4872 9827

$$
BRAMER
4 follow-up statements
000 
WWUS53 KFGF 072227
SVSFGF

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

NDC019-067-072315-
/O.CON.KFGF.TO.W.0027.000000T0000Z-080707T2315Z/
PEMBINA ND-CAVALIER ND-
527 PM CDT MON JUL 7 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR EASTERN
CAVALIER AND WESTERN PEMBINA COUNTIES...

AT 522 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THE TORNADO WAS LOCATED
2 MILES NORTH OF OSNABROCK...OR 12 MILES EAST OF LANGDON...MOVING TO
THE EAST AT 41 MPH.

* THE TORNADO WILL BE NEAR...
  CONCRETE BY 535 PM CDT...
  MOUNTAIN AND 7 MILES NORTH OF GARDAR BY 540 PM CDT...
  6 MILES SOUTH OF AKRA BY 550 PM CDT...
  HENSEL...6 MILES NORTH OF CRYSTAL AND 8 MILES SOUTH OF CAVALIER BY
  555 PM CDT...

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

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT MONDAY EVENING FOR
NORTHWEST MINNESOTA AND EASTERN NORTH DAKOTA.

LAT...LON 4862 9757 4860 9757 4855 9756 4855 9849
      4893 9841 4896 9762
TIME...MOT...LOC 2227Z 273DEG 36KT 4870 9806

$$
BRAMER
000 
WWUS53 KFGF 072238
SVSFGF

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

NDC019-067-072315-
/O.CON.KFGF.TO.W.0027.000000T0000Z-080707T2315Z/
PEMBINA ND-CAVALIER ND-
538 PM CDT MON JUL 7 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR EASTERN
CAVALIER AND WESTERN PEMBINA COUNTIES...

AT 535 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THE TORNADO WAS LOCATED
3 MILES NORTH OF MILTON...OR 16 MILES EAST OF LANGDON...MOVING TO THE
EAST AT 38 MPH.

* THE TORNADO WILL BE NEAR...
  CONCRETE BY 545 PM CDT...
  MOUNTAIN AND GARDAR BY 550 PM CDT...
  HENSEL BY 600 PM CDT...
  CRYSTAL BY 605 PM CDT...

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

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT MONDAY EVENING FOR
NORTHWEST MINNESOTA AND EASTERN NORTH DAKOTA.

LAT...LON 4896 9762 4855 9756 4856 9825 4893 9822
TIME...MOT...LOC 2238Z 274DEG 33KT 4868 9800

$$
BRAMER
000 
WWUS53 KFGF 072247
SVSFGF

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

NDC019-067-072315-
/O.CON.KFGF.TO.W.0027.000000T0000Z-080707T2315Z/
PEMBINA ND-CAVALIER ND-
547 PM CDT MON JUL 7 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR
SOUTHEASTERN CAVALIER AND WESTERN PEMBINA COUNTIES...

AT 545 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THE TORNADO WAS LOCATED
3 MILES WEST OF MOUNTAIN...OR 21 MILES EAST OF LANGDON...MOVING TO
THE EAST AT 39 MPH.

* THE TORNADO WILL BE ABOUT...
  7 MILES SOUTH OF AKRA BY 600 PM CDT...
  HENSEL...CRYSTAL AND 9 MILES SOUTH OF CAVALIER BY 605 PM CDT...

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

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT MONDAY EVENING FOR
NORTHWEST MINNESOTA AND EASTERN NORTH DAKOTA.

LAT...LON 4855 9756 4857 9821 4887 9804 4896 9763
TIME...MOT...LOC 2247Z 270DEG 34KT 4867 9791

$$
BRAMER
000 
WWUS53 KFGF 072311
SVSFGF

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

NDC019-067-072321-
/O.EXP.KFGF.TO.W.0027.000000T0000Z-080707T2315Z/
PEMBINA ND-CAVALIER ND-
611 PM CDT MON JUL 7 2008

...THE TORNADO WARNING FOR SOUTHEASTERN CAVALIER AND WESTERN PEMBINA
COUNTIES WILL EXPIRE AT 615 PM CDT...

DOPPLER RADAR INDICATED THE STORM WAS NO LONGER SEVERE AND SO THE
WARNING WILL BE ALLOWED TO EXPIRE AT 615 PM CDT. 

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT MONDAY EVENING FOR
NORTHWEST MINNESOTA AND EASTERN NORTH DAKOTA.

LAT...LON 4855 9756 4857 9821 4887 9804 4896 9763
TIME...MOT...LOC 2311Z 270DEG 34KT 4866 9757

$$
BRAMER

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, 4:55 PM CDTTornado WarningFGFGriggs, Nelson, Steele35 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.