Alert archive / North Dakota / Tornado Warnings in 2006

Tornado Warning 9, NWS Bismarck, ND

July 12, 2006Pierce County, North Dakota

NWS Bismarck, ND issued this tornado warning at Jul 12, 2006, 6:03 PM CDT for Pierce 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 12, 2006, 6:03 PM CDT (23:03 UTC)
Expired: Jul 12, 2006, 6:16 PM CDT
In force: 13 min
Issued by: NWS Bismarck, ND
Area: Counties, with a storm outline in the text

County Pierce County, ND

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 11.1 hours before the alert went out and 179 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: 591 J/kg
Mixed-layer CIN: -398 J/kg
Mixed-layer LCL: 1755 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 115 m²/s²
0-3 km storm-relative helicity: 187 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KBIS 122303
TORBIS
NDC069-122330-
/O.NEW.KBIS.TO.W.0009.060712T2303Z-060712T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
603 PM CDT WED JUL 12 2006

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN PIERCE COUNTY IN NORTH CENTRAL NORTH DAKOTA...

* UNTIL 630 PM CDT

* AT 557 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR BALTA...OR
  ABOUT 46 MILES SOUTH OF BOTTINEAU...MOVING NORTHEAST AT 55 MPH.

* THE TORNADO WILL BE NEAR...
  8 MILES SOUTHEAST OF WOLFORD AROUND 620 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.

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS.

LAT...LON 4821 10025 4811 10002 4846 9965 4858 9993

$$

JC

1 follow-up statement

000 
WWUS53 KBIS 122316
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
614 PM CDT WED JUL 12 2006

NDC069-122324-
/O.CAN.KBIS.TO.W.0009.000000T0000Z-060712T2330Z/
PIERCE ND-
614 PM CDT WED JUL 12 2006

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

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

A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CDT. 
THERE IS STILL A THREAT FOR HIGH WINDS AND LARGE HAIL.

LAT...LON 4821 10025 4811 10002 4846 9965 4858 9993

$$

JC

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 12, 5:11 AM CDT	Red Flag Warning	BIS	Adams, Billings, Bowman, Burke, Burleigh, Divide and 19 more	16 hr
Jul 12, 3:40 PM CDT	Severe Thunderstorm Warning	BIS	Ward	50 min
Jul 12, 4:25 PM CDT	Severe Thunderstorm Warning	BIS	McHenry	65 min
Jul 12, 4:28 PM CDT	Severe Thunderstorm Warning	BIS	Ward	62 min
Jul 12, 5:30 PM CDT	Severe Thunderstorm Warning	BIS	McHenry	60 min
Jul 12, 5:44 PM CDT	Severe Thunderstorm Warning	BIS	Pierce	61 min
Jul 12, 6:26 PM CDT	Severe Thunderstorm Warning	BIS	Mercer	34 min
Jul 12, 6:29 PM CDT	Severe Thunderstorm Warning	BIS	Morton	61 min
Jul 12, 6:38 PM CDT	Severe Thunderstorm Warning	BIS	Golden Valley	67 min
Jul 12, 6:41 PM CDT	Severe Thunderstorm Warning	BIS	Oliver	64 min

Nearby

Tornado Warnings in North Dakota, 2006 Every tornado warning in 2006 Tornadoes in 2006

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.