Alert archive / North Dakota / Tornado Warnings in 2006

Tornado Warning 3, NWS Bismarck, ND

May 31, 2006McHenry County, North Dakota

NWS Bismarck, ND issued this tornado warning at May 31, 2006, 3:59 PM CDT for McHenry County, North Dakota. It was in force for 46 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: May 31, 2006, 3:59 PM CDT (20:59 UTC)
Expired: May 31, 2006, 4:45 PM CDT
In force: 46 min
Issued by: NWS Bismarck, ND
Area: Counties, with a storm outline in the text

County McHenry County, ND

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 9.0 hours before the alert went out and 151 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: 15 J/kg
Mixed-layer CIN: -125 J/kg
Mixed-layer LCL: 1101 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 0 m²/s²
0-3 km storm-relative helicity: -4 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 312059
TORBIS
NDC049-312145-
/O.NEW.KBIS.TO.W.0003.060531T2059Z-060531T2145Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
359 PM CDT WED MAY 31 2006

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN MCHENRY COUNTY IN NORTH CENTRAL NORTH DAKOTA...

* UNTIL 445 PM CDT

* AT 352 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 7 MILES SOUTH OF
  GRANVILLE...OR ABOUT 22 MILES EAST OF MINOT...MOVING SOUTHEAST AT
  25 MPH.

* THE TORNADO WILL BE NEAR...
  8 MILES NORTHEAST OF BERGEN AROUND 425 PM CDT...
  KARLSRUHE AROUND 435 PM CDT...
  9 MILES NORTH OF BALFOUR AROUND 445 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 4825 10092 4813 10098 4790 10094 4791 10030
      4831 10045

$$


LEBLANG

2 follow-up statements

000 
WWUS53 KBIS 312113
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
413 PM CDT WED MAY 31 2006

NDC049-312145-
/O.CON.KBIS.TO.W.0003.000000T0000Z-060531T2145Z/
MCHENRY ND-
413 PM CDT WED MAY 31 2006

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 PM CDT FOR SOUTHERN
MCHENRY COUNTY...

AT 405 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A POSSIBLE TORNADO LOCATED 6 MILES WEST OF KARLSRUHE...OR 
ABOUT 27 MILES EAST OF MINOT...MOVING SOUTHEAST AT 25 MPH.

THE TORNADO WILL BE NEAR...
  KARLSRUHE AROUND 420 PM CDT...
  BALFOUR AROUND 435 PM CDT...
  6 MILES NORTH OF DRAKE AROUND 445 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 4817 10083 4813 10098 4790 10094 4791 10030
      4818 10050

$$

LEBLANG

000 
WWUS53 KBIS 312141
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
442 PM CDT WED MAY 31 2006

NDC049-312152-
/O.EXP.KBIS.TO.W.0003.000000T0000Z-060531T2145Z/
MCHENRY ND-
442 PM CDT WED MAY 31 2006

...THE TORNADO WARNING FOR SOUTHERN MCHENRY COUNTY EXPIRES AT 445 PM
CDT...

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

LAT...LON 4817 10083 4813 10098 4790 10094 4791 10030
      4818 10050

$$

LEBLANG

The office that day

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

Issued	Product	Office	Counties	Lasted
May 31, 2:06 PM CDT	Severe Thunderstorm Warning	BIS	Kidder	30 min
May 31, 3:20 PM CDT	Severe Thunderstorm Warning	BIS	Stutsman	55 min
May 31, 4:04 PM CDT	Severe Thunderstorm Warning	BIS	Bottineau	56 min
May 31, 5:13 PM CDT	Severe Thunderstorm Warning	BIS	LaMoure	62 min
May 31, 5:40 PM CDT	Severe Thunderstorm Warning	BIS	McKenzie	50 min
May 31, 5:47 PM CDT	Severe Thunderstorm Warning	BIS	Burke	31 min
May 31, 6:04 PM CDT	Severe Thunderstorm Warning	BIS	Hettinger	28 min
May 31, 6:04 PM CDT	Severe Thunderstorm Warning	BIS	McHenry	32 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.