Alert archive / North Dakota / Tornado Warnings in 2007

Tornado Warning 32, NWS Bismarck, ND

August 8, 2007Kidder County, North Dakota

NWS Bismarck, ND issued this tornado warning at Aug 8, 2007, 4:33 PM CDT for Kidder County, North Dakota. It was in force for 27 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
Aug 8, 2007, 4:33 PM CDT (21:33 UTC)
Expired
Aug 8, 2007, 5:00 PM CDT
In force
27 min
Issued by
NWS Bismarck, ND
Area
Counties, with a storm outline in the text

County Kidder County, ND

The radar

The Bismarck radar (KBIS), 84 km from the middle of the area, began a volume at 21:34 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.

The watch it was issued in

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

IssuedProductOfficeLasted
Aug 8, 2:57 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 9.6 hours before the alert went out and 237 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, Aberdeen, SD at 12:00Z on 2007-08-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 244 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, Aberdeen, SD at 12:00Z on 2007-08-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -18 square meters per square second.19395878Sfc1 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
244 J/kg
Mixed-layer CIN
-248 J/kg
Mixed-layer LCL
973 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
-18 m²/s²
0-3 km storm-relative helicity
-1 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KBIS 082133
TORBIS
NDC043-082200-
/O.NEW.KBIS.TO.W.0032.070808T2133Z-070808T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
433 PM CDT WED AUG 8 2007

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN KIDDER COUNTY IN SOUTH CENTRAL NORTH DAKOTA...

* UNTIL 500 PM CDT

* AT 430 PM CDT...THE PUBLIC REPORTED A FUNNEL CLOUD NEAR LAKE
  ISABEL...OR ABOUT 49 MILES EAST OF BISMARCK...MOVING EAST AT 20
  MPH.

* THE TORNADO WILL BE NEAR...
  TAPPEN AROUND 450 PM CDT...
  CRYSTAL SPRINGS AROUND 500 PM CDT...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 4698 9979 4664 9978 4664 9945 4697 9949

$$

CLH/TSW
1 follow-up statement
000 
WWUS53 KBIS 082154
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
454 PM CDT WED AUG 8 2007

NDC043-082204-
/O.EXP.KBIS.TO.W.0032.000000T0000Z-070808T2200Z/
KIDDER ND-
454 PM CDT WED AUG 8 2007

...THE TORNADO WARNING FOR SOUTHEASTERN KIDDER COUNTY EXPIRES AT 500
PM CDT...

THE TORNADIC THUNDERSTORM HAS WEAKENED AND NO LONGER POSES A
SIGNIFICANT THREAT.

LAT...LON 4698 9979 4664 9978 4664 9945 4697 9949

$$

CLH/TSW

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 7, 7:30 PM CDTSevere Thunderstorm WarningBISDunn45 min
Aug 7, 8:30 PM CDTSevere Thunderstorm WarningBISWard30 min
Aug 7, 8:46 PM CDTSevere Thunderstorm WarningBISMountrail28 min
Aug 7, 9:08 PM CDTSevere Thunderstorm WarningBISMcLean67 min
Aug 7, 9:21 PM CDTSevere Thunderstorm WarningBISBottineau24 min
Aug 7, 9:32 PM CDTSevere Thunderstorm WarningBISMcHenry, Ward58 min
Aug 8, 2:59 AM CDTSevere Thunderstorm WarningBISAdams, Hettinger31 min
Aug 8, 7:03 AM CDTSevere Thunderstorm WarningBISGrant, Sioux27 min
Aug 8, 2:48 PM CDTSevere Thunderstorm WarningBISGrant, Morton, Stark57 min
Aug 8, 2:57 PM CDTSevere Thunderstorm WarningBISFoster, Stutsman30 min
Aug 8, 3:45 PM CDTSevere Thunderstorm WarningBISGrant60 min
Aug 8, 5:34 PM CDTSevere Thunderstorm WarningBISLaMoure56 min

Nearby

Tornado Warnings in North Dakota, 2007Every tornado warning in 2007Tornadoes in 2007

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; radar from the NEXRAD Level II archive.