Alert archive / North Dakota / Tornado Warnings in 2007

Tornado Warning 29, NWS Bismarck, ND

July 9, 2007Burleigh County, North Dakota

NWS Bismarck, ND issued this tornado warning at Jul 9, 2007, 8:32 PM CDT for Burleigh County, North Dakota. It was in force for 13 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: Jul 9, 2007, 8:32 PM CDT (01:32 UTC)
Expired: Jul 9, 2007, 8:45 PM CDT
In force: 13 min
Issued by: NWS Bismarck, ND
Area: Counties, with a storm outline in the text

County Burleigh County, ND

The radar

The Bismarck radar (KBIS), 44 km from the middle of the area, began a volume at 01:35 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
Jul 9, 5:15 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 1.5 hours before the alert went out and 43 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: 239 J/kg
Mixed-layer CIN: -107 J/kg
Mixed-layer LCL: 1699 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 175 m²/s²
0-3 km storm-relative helicity: 304 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 4.6

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KBIS 100132
TORBIS
NDC015-100200-
/O.NEW.KBIS.TO.W.0029.070710T0132Z-070710T0200Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
832 PM CDT MON JUL 9 2007

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN BURLEIGH COUNTY IN SOUTH CENTRAL NORTH DAKOTA...

* UNTIL 900 PM CDT

* AT 831 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 7 MILES WEST OF
  REGAN...OR ABOUT 23 MILES NORTH OF BISMARCK...MOVING EAST AT 40
  MPH.

* THE TORNADO WILL BE NEAR...
  REGAN AROUND 840 PM CDT...
  WING AROUND 855 PM CDT...
  ARENA AROUND 900 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 4723 10072 4717 10074 4702 10080 4696 10013
      4722 10012

$$

CLH/TSW

1 follow-up statement

000 
WWUS53 KBIS 100145
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
845 PM CDT MON JUL 9 2007

NDC015-100155-
/O.CAN.KBIS.TO.W.0029.000000T0000Z-070710T0200Z/
BURLEIGH ND-
845 PM CDT MON JUL 9 2007

...THE TORNADO WARNING FOR NORTHERN BURLEIGH COUNTY IS CANCELLED...

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

LAT...LON 4723 10072 4717 10074 4702 10080 4696 10013
      4722 10012

$$

CLH/TSW

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 9, 7:01 PM CDT	Severe Thunderstorm Warning	BIS	McLean, Mercer	59 min
Jul 9, 7:23 PM CDT	Severe Thunderstorm Warning	BIS	McHenry	67 min
Jul 9, 7:31 PM CDT	Severe Thunderstorm Warning	BIS	McLean, Ward	44 min
Jul 9, 7:51 PM CDT	Tornado Warning	BIS	McHenry	24 min
Jul 9, 8:14 PM CDT	Wind Advisory	BIS	Adams, Billings, Bowman, Burke, Divide, Dunn and 7 more	8 hr
Jul 9, 8:18 PM CDT	Severe Thunderstorm Warning	BIS	McHenry, Pierce	57 min
Jul 9, 9:08 PM CDT	Severe Thunderstorm Warning	BIS	Emmons, Sioux	67 min
Jul 9, 9:29 PM CDT	Tornado Warning	BIS	Emmons	31 min
Jul 10, 4:20 AM CDT	Wind Advisory	BIS	Bottineau, Dickey, Foster, Kidder, LaMoure, Logan and 7 more	7 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.