Alert archive / North Dakota / Tornado Warnings in 2008

Tornado Warning 62, NWS Grand Forks, ND

August 14, 2008Steele County, North Dakota

NWS Grand Forks, ND issued this tornado warning at Aug 14, 2008, 7:00 PM CDT for Steele County, North Dakota. It was in force for 45 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
Aug 14, 2008, 7:00 PM CDT (00:00 UTC)
Expired
Aug 14, 2008, 7:45 PM CDT
In force
45 min
Issued by
NWS Grand Forks, ND
Area
Storm-based polygon

County Steele County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 38 km from the middle of the area, began a volume at 00:03 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
Aug 14, 7:05 PM CDTHAIL 0.75Hope, ND
Aug 14, 7:25 PM CDTHAIL 0.881 N Hope, ND

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

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 0.0 hours before the alert went out and 231 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 2008-08-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 7 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 00:00Z on 2008-08-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -16 square meters per square second.1939Sfc1 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
7 J/kg
Mixed-layer CIN
-95 J/kg
Mixed-layer LCL
1125 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
-16 m²/s²
0-3 km storm-relative helicity
-16 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 150000
TORFGF
NDC091-150045-
/O.NEW.KFGF.TO.W.0062.080815T0000Z-080815T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
700 PM CDT THU AUG 14 2008

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL STEELE COUNTY IN SOUTHEAST NORTH DAKOTA...

* UNTIL 745 PM CDT

* AT 658 PM CDT...WEATHER SPOTTERS REPORTED A FUNNEL CLOUD NEAR
  HOPE...OR 32 MILES NORTHEAST OF VALLEY CITY...MOVING TO THE WEST AT
  3 MPH.

* THE TORNADO WILL BE NEAR...
  BLABON AT 745 PM CDT...

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

LAT...LON 4750 9787 4739 9760 4728 9768 4733 9796
TIME...MOT...LOC 0000Z 106DEG 3KT 4734 9770

$$
SPEICHER
1 follow-up statement
000 
WWUS53 KFGF 150019
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
719 PM CDT THU AUG 14 2008

NDC091-150045-
/O.CON.KFGF.TO.W.0062.000000T0000Z-080815T0045Z/
STEELE ND-
719 PM CDT THU AUG 14 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR CENTRAL
STEELE COUNTY...

AT 716 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THE TORNADO WAS LOCATED
NEAR HOPE...OR 32 MILES NORTHEAST OF VALLEY CITY...MOVING TO THE WEST
AT 5 MPH.

* THE TORNADO WILL BE NEAR...
  BLABON BY 745 PM CDT...

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

LAT...LON 4750 9787 4739 9760 4728 9768 4733 9796
TIME...MOT...LOC 0019Z 104DEG 4KT 4735 9774

$$
SPEICHER

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 14, 7:39 PM CDTSevere Thunderstorm WarningFGFBarnes, Steele36 min
Aug 14, 8:18 PM CDTSevere Thunderstorm WarningFGFBarnes, Griggs42 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; radar from the NEXRAD Level II archive.