Alert archive / North Dakota / Tornado Warnings in 2007

Tornado Warning 38, NWS Bismarck, ND

August 10, 2007Dunn County, North Dakota

NWS Bismarck, ND issued this tornado warning at Aug 10, 2007, 7:40 PM MDT for Dunn 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: Aug 10, 2007, 7:40 PM MDT (01:40 UTC)
Expired: Aug 10, 2007, 8:15 PM MDT
In force: 35 min
Issued by: NWS Bismarck, ND
Area: Counties, with a storm outline in the text

County Dunn County, ND

The radar

The Bismarck radar (KBIS), 165 km from the middle of the area, began a volume at 01:42 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.

Issued	Product	Office	Lasted
Aug 10, 4:45 PM MDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 1.7 hours before the alert went out and 169 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1851 J/kg
Mixed-layer CIN: -226 J/kg
Mixed-layer LCL: 1543 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 164 m²/s²
0-3 km storm-relative helicity: 267 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 KBIS 110140
TORBIS
NDC025-110215-
/O.NEW.KBIS.TO.W.0038.070811T0140Z-070811T0215Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
740 PM MDT FRI AUG 10 2007

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL DUNN COUNTY IN SOUTHWEST NORTH DAKOTA...

* UNTIL 815 PM MDT(915 PM CDT)

* AT 737 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR KILLDEER...
  OR ABOUT 38 MILES NORTH OF DICKINSON...MOVING NORTHEAST AT 30 MPH.

* THE TORNADO WILL BE NEAR...
  7 MILES SOUTHEAST OF LITTLE MISSOURI STATE PARK AND 8 MILES
  NORTHWEST OF DUNN CENTER AROUND 745 PM MDT...
  MCKENZIE BAY RECREATION AREA AROUND 915 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 4763 10293 4719 10296 4720 10227 4769 10230

$$

RSL

1 follow-up statement

000 
WWUS53 KBIS 110208
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
908 PM CDT FRI AUG 10 2007

NDC025-110218-
/O.EXP.KBIS.TO.W.0038.000000T0000Z-070811T0215Z/
DUNN ND-
808 PM MDT FRI AUG 10 2007

...THE TORNADO WARNING FOR CENTRAL DUNN COUNTY EXPIRES AT 815 PM
MDT(915 PM CDT)...

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

LAT...LON 4763 10293 4719 10296 4720 10227 4769 10230

$$
JF

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 10, 6:30 PM MDT	Tornado Warning	BIS	Emmons, Sioux	30 min
Aug 10, 6:38 PM MDT	Severe Thunderstorm Warning	BIS	Billings, Stark	52 min
Aug 10, 7:06 PM MDT	Severe Thunderstorm Warning	BIS	Billings, McKenzie	54 min
Aug 10, 7:26 PM MDT	Severe Thunderstorm Warning	BIS	McIntosh	30 min
Aug 10, 8:50 PM MDT	Severe Thunderstorm Warning	BIS	Williams	40 min
Aug 10, 8:59 PM MDT	Severe Thunderstorm Warning	BIS	Divide, McKenzie, Williams	61 min
Aug 10, 9:17 PM MDT	Severe Thunderstorm Warning	BIS	Burke, Mountrail	22 min
Aug 10, 9:42 PM MDT	Severe Thunderstorm Warning	BIS	McKenzie, Williams	33 min
Aug 10, 10:05 PM MDT	Tornado Warning	BIS	Burke, Mountrail, Williams	25 min
Aug 10, 10:11 PM MDT	Severe Thunderstorm Warning	BIS	Burke, Divide, McKenzie, Mountrail, Williams	64 min
Aug 10, 11:31 PM MDT	Severe Thunderstorm Warning	BIS	Morton	59 min
Aug 10, 11:59 PM MDT	Severe Thunderstorm Warning	BIS	Dunn, Stark	61 min
Aug 11, 12:02 AM MDT	High Wind Warning	BIS	Bottineau, McHenry, Pierce, Renville, Rolette	3 hr
Aug 11, 12:28 AM MDT	Severe Thunderstorm Warning	BIS	Morton	62 min
Aug 11, 12:47 AM MDT	Severe Thunderstorm Warning	BIS	Burleigh, Morton	58 min
Aug 11, 1:00 AM MDT	Severe Thunderstorm Warning	BIS	Mercer, Morton	60 min
Aug 11, 1:19 AM MDT	Severe Thunderstorm Warning	BIS	Dickey, McIntosh	56 min
Aug 11, 1:44 AM MDT	Severe Thunderstorm Warning	BIS	Burleigh, Morton	61 min
Aug 11, 2:14 AM MDT	Severe Thunderstorm Warning	BIS	Kidder	61 min
Aug 11, 2:22 AM MDT	Severe Thunderstorm Warning	BIS	Dickey	53 min
Aug 11, 2:25 AM MDT	Tornado Warning	BIS	Kidder	35 min
Aug 11, 2:55 AM MDT	Severe Thunderstorm Warning	BIS	Stutsman	65 min
Aug 11, 3:10 AM MDT	Severe Thunderstorm Warning	BIS	Logan	65 min
Aug 11, 3:20 AM MDT	Severe Thunderstorm Warning	BIS	LaMoure	55 min
Aug 11, 3:33 AM MDT	Severe Thunderstorm Warning	BIS	LaMoure, Stutsman	57 min
Aug 11, 2:57 PM MDT	Fire Weather Watch	BIS	Billings, Bowman, Golden Valley, Slope	13 hr

Nearby

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