Alert archive / North Dakota / Tornado Warnings in 2006

Tornado Warning 13, NWS Bismarck, ND

August 9, 2006Logan County, North Dakota

NWS Bismarck, ND issued this tornado warning at Aug 9, 2006, 7:28 PM CDT for Logan County, North Dakota. It was in force for 32 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 9, 2006, 7:28 PM CDT (00:28 UTC)
Expired
Aug 9, 2006, 8:00 PM CDT
In force
32 min
Issued by
NWS Bismarck, ND
Area
Counties, with a storm outline in the text

County Logan County, ND

The radar

The Bismarck radar (KBIS), 109 km from the middle of the area, began a volume at 00:32 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 9, 3:31 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 0.5 hours before the alert went out and 104 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 2006-08-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1510 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 2006-08-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 26 square meters per square second.193958Sfc1 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
1510 J/kg
Mixed-layer CIN
-52 J/kg
Mixed-layer LCL
2369 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
26 m²/s²
0-3 km storm-relative helicity
133 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.1

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KBIS 100028
TORBIS
NDC047-100100-
/O.NEW.KBIS.TO.W.0013.060810T0028Z-060810T0100Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
728 PM CDT WED AUG 9 2006

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* TORNADO WARNING FOR...
  LOGAN COUNTY IN SOUTHEAST NORTH DAKOTA...

* UNTIL 800 PM CDT

* AT 723 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 11 MILES
  NORTHEAST OF BURNSTAD...OR ABOUT 48 MILES SOUTHWEST OF JAMESTOWN...
  MOVING SOUTHEAST AT 20 MPH.

* THE TORNADO WILL BE NEAR...
  6 MILES EAST OF BURNSTAD AROUND 750 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.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT
WEDNESDAY EVENING FOR SOUTHEASTERN NORTH DAKOTA.

LAT...LON 4662 9927 4663 9967 4630 9970 4629 9908

$$

LEBLANG
2 follow-up statements
000 
WWUS53 KBIS 100045
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
745 PM CDT WED AUG 9 2006

NDC047-100100-
/O.CON.KBIS.TO.W.0013.000000T0000Z-060810T0100Z/
LOGAN ND-
745 PM CDT WED AUG 9 2006

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 800 PM CDT FOR LOGAN
COUNTY...

AT 740 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A POSSIBLE TORNADO LOCATED 11 MILES EAST OF BURNSTAD...OR 
ABOUT 47 MILES SOUTHWEST OF JAMESTOWN...MOVING SOUTHEAST AT 20 MPH.

THE TORNADO WILL BE NEAR...
  RURAL CENTRAL LOGAN COUNTY AROUND 800 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.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT
WEDNESDAY EVENING FOR SOUTHEASTERN NORTH DAKOTA.

LAT...LON 4662 9927 4663 9967 4630 9970 4629 9908

$$

LEBLANG
000 
WWUS53 KBIS 100059
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
759 PM CDT WED AUG 9 2006

NDC047-100109-
/O.EXP.KBIS.TO.W.0013.000000T0000Z-060810T0100Z/
LOGAN ND-
759 PM CDT WED AUG 9 2006

...THE TORNADO WARNING FOR LOGAN COUNTY EXPIRES AT 800 PM CDT...

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

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT
WEDNESDAY EVENING FOR SOUTHEASTERN NORTH DAKOTA.

LAT...LON 4662 9927 4663 9967 4630 9970 4629 9908

$$

LEBLANG

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 9, 7:06 PM CDTSevere Thunderstorm WarningBISMcIntosh54 min
Aug 9, 8:20 PM CDTSevere Thunderstorm WarningBISMcIntosh55 min
Aug 9, 9:24 PM CDTSevere Thunderstorm WarningBISLaMoure66 min
Aug 9, 10:12 PM CDTSevere Thunderstorm WarningBISDickey63 min
Aug 9, 10:29 PM CDTSevere Thunderstorm WarningBISLaMoure25 min
Aug 9, 11:28 PM CDTSevere Thunderstorm WarningBISBillings, Golden Valley49 min
Aug 10, 1:22 AM CDTSevere Thunderstorm WarningBISLogan53 min
Aug 10, 1:30 AM CDTSevere Thunderstorm WarningBISBurleigh48 min
Aug 10, 1:42 AM CDTTornado WarningBISLogan, McIntosh33 min
Aug 10, 2:13 AM CDTTornado WarningBISLogan, McIntosh32 min
Aug 10, 2:36 AM CDTSevere Thunderstorm WarningBISKidder54 min
Aug 10, 2:48 AM CDTSevere Thunderstorm WarningBISMcIntosh57 min
Aug 10, 3:27 AM CDTSevere Thunderstorm WarningBISKidder, Logan63 min
Aug 10, 5:33 AM CDTSevere Thunderstorm WarningBISBurleigh, Kidder42 min
Aug 10, 2:28 PM CDTSevere Thunderstorm WarningBISGrant, Sioux62 min
Aug 10, 2:43 PM CDTTornado WarningBISSioux32 min

Nearby

Tornado Warnings in North Dakota, 2006Every tornado warning in 2006Tornadoes 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; radar from the NEXRAD Level II archive.