Alert archive / North Dakota / Tornado Warnings in 2008

Tornado Warning 30, NWS Grand Forks, ND

July 7, 2008Walsh County, North Dakota; Marshall County, Minnesota

NWS Grand Forks, ND issued this tornado warning at Jul 7, 2008, 6:26 PM CDT for Walsh County, North Dakota; Marshall County, Minnesota. It was in force for 64 min. 1 report 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, 6:26 PM CDT (23:26 UTC)
Expired
Jul 7, 2008, 7:30 PM CDT
In force
64 min
Issued by
NWS Grand Forks, ND
Area
Storm-based polygon

Counties Marshall County, MN, Walsh County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 100 km from the middle of the area, began a volume at 23:27 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.

What was reported inside it

TimeReportWhereRemark
Jul 7, 7:00 PM CDTFUNNEL CLOUD4 N Oakwood, ND

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
Jul 7, 5:30 PM CDTTornado WatchSPC3 hr

The nearest sounding before it

International Fa, MN (KINL), launched 12:00Z, 11.4 hours before the alert went out and 285 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 2008-07-07Temperature 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 2008-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 37 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
870 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
37 m²/s²
0-3 km storm-relative helicity
64 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 072326
TORFGF
MNC089-NDC099-080030-
/O.NEW.KFGF.TO.W.0030.080707T2326Z-080708T0030Z/

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

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN WALSH COUNTY IN NORTHEAST NORTH DAKOTA...
  THIS INCLUDES THE CITY OF GRAFTON...
  WESTERN MARSHALL COUNTY IN NORTHWEST MINNESOTA...

* UNTIL 730 PM CDT

* AT 622 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 2 MILES
  SOUTHEAST OF PARK RIVER...OR 15 MILES WEST OF GRAFTON...MOVING TO
  THE EAST AT 36 MPH.

* THE TORNADO WILL BE NEAR...
  VESELEYVILLE AT 635 PM CDT...
  GRAFTON AT 645 PM CDT...
  MINTO AT 650 PM CDT...
  OAKWOOD AT 655 PM CDT...

  INTERSTATE 29 BETWEEN MILE MARKER 177 AROUND 700 PM CDT...
  AND MILE MARKER 176 AROUND 705 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 4854 9659 4819 9672 4828 9798 4855 9792
TIME...MOT...LOC 2326Z 273DEG 31KT 4837 9767

$$

PJS/PR
2 follow-up statements
000 
WWUS53 KFGF 072346
SVSFGF

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

MNC089-NDC099-080030-
/O.CON.KFGF.TO.W.0030.000000T0000Z-080708T0030Z/
MARSHALL MN-WALSH ND-
646 PM CDT MON JUL 7 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM CDT FOR WESTERN
MARSHALL AND EASTERN WALSH COUNTIES...

AT 641 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THE TORNADO WAS LOCATED
4 MILES NORTHWEST OF VESELEYVILLE...OR 11 MILES WEST OF GRAFTON...
MOVING TO THE EAST AT 36 MPH.

* THE TORNADO WILL BE NEAR...
  VOSS BY 655 PM CDT...
  MINTO AND GRAFTON BY 700 PM CDT...
  WARSAW BY 710 PM CDT...
  BIG WOODS BY 720 PM CDT...

  INTERSTATE 29 BETWEEN MILE MARKERS 164 AND 180 AT 715 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 4853 9658 4819 9672 4827 9781 4854 9780
TIME...MOT...LOC 2346Z 273DEG 31KT 4835 9757

$$

PJS/PR
000 
WWUS53 KFGF 080006
SVSFGF

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

MNC089-NDC099-080030-
/O.CON.KFGF.TO.W.0030.000000T0000Z-080708T0030Z/
MARSHALL MN-WALSH ND-
706 PM CDT MON JUL 7 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM CDT FOR WESTERN
MARSHALL AND EASTERN WALSH COUNTIES...

AT 704 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THE TORNADO WAS LOCATED
NEAR GRAFTON...MOVING TO THE EAST AT 36 MPH.

* THE TORNADO WILL BE ABOUT...
  6 MILES SOUTH OF HERRICK AND 9 MILES NORTH OF WARSAW BY 715 PM
  CDT...
  8 MILES NORTH OF BIG WOODS BY 725 PM CDT...
  8 MILES WEST OF STEPHEN BY 730 PM CDT...

  INTERSTATE 29 BETWEEN MILE MARKERS 174 AND 179 AT 720 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 4853 9658 4819 9672 4827 9759 4854 9749
TIME...MOT...LOC 0006Z 269DEG 31KT 4842 9735

$$

PJS/PR

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, 5:13 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, 6:49 PM CDTSevere Thunderstorm WarningFGFCass56 min
Jul 7, 2:18 PM CDTSevere Thunderstorm WarningFGFWilkin34 min
Jul 7, 3:04 PM CDTSevere Thunderstorm WarningFGFGrant, Otter Tail45 min
Jul 7, 6:30 PM CDTSevere Thunderstorm WarningFGFKittson, Roseau60 min

Nearby

Tornado Warnings in North Dakota, 2008Tornado Warnings in Minnesota, 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; radar from the NEXRAD Level II archive.