Alert archive / North Dakota / Tornado Warnings in 2006

Tornado Warning 10, NWS Bismarck, ND

July 12, 2006McHenry County, McLean County, North Dakota

NWS Bismarck, ND issued this tornado warning at Jul 12, 2006, 8:05 PM CDT for McHenry County, McLean County, North Dakota. It was in force for 55 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, 8:05 PM CDT (01:05 UTC)
Expired: Jul 12, 2006, 9:00 PM CDT
In force: 55 min
Issued by: NWS Bismarck, ND
Area: Counties, with a storm outline in the text

Counties McHenry County, ND, McLean County, ND

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this tornado warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 1.1 hours before the alert went out and 118 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: 751 J/kg
Mixed-layer CIN: -26 J/kg
Mixed-layer LCL: 3332 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: -35 m²/s²
0-3 km storm-relative helicity: 73 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 130107
TORBIS
NDC049-055-130200-
/O.NEW.KBIS.TO.W.0010.060713T0105Z-060713T0200Z/

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

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTH CENTRAL MCHENRY COUNTY IN NORTH CENTRAL NORTH DAKOTA...
  EASTERN MCLEAN COUNTY IN SOUTH CENTRAL NORTH DAKOTA...

* UNTIL 900 PM CDT

* AT 801 PM CDT...SKYWARN SPOTTERS REPORTED A TORNADO 5 MILES        
  SOUTH OF RUSO...OR ABOUT 41 MILES SOUTH OF MINOT...MOVING          
  NORTHEAST AT 30 MPH.

* THE TORNADO WILL BE NEAR...
  RUSO NOW...
  BENEDICT AROUND 820 PM CDT...  
  VOLTAIRE AND VELVA AROUND 855 PM CDT...  
  BERGEN 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 4784 10118 4737 10131 4736 10079 4768 10069
      4770 10062 4787 10061 4788 10045 4809 10047
      4809 10062 4809 10079 4809 10096 4784 10095

$$

HAMMER/JENSEN

2 follow-up statements

000 
WWUS53 KBIS 130127
SVSBIS

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

NDC049-055-130200-
/O.CON.KBIS.TO.W.0010.000000T0000Z-060713T0200Z/
MCLEAN ND-MCHENRY ND-
826 PM CDT WED JUL 12 2006

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR SOUTH
CENTRAL MCHENRY AND EASTERN MCLEAN COUNTIES...

AT 823 PM CDT...SKYWARN SPOTTERS REPORTED A TORNADO.  THIS TORNADO
WAS LOCATED NEAR BUTTE...OR ABOUT 38 MILES SOUTHEAST OF MINOT...
MOVING NORTHEAST AT 30 MPH.

THE TORNADO WILL BE NEAR...
  7 MILES SOUTHEAST OF BERGEN AROUND 840 PM CDT...
  BALFOUR AROUND 845 PM CDT...
  7 MILES SOUTHEAST OF KARLSRUHE AROUND 855 PM CDT...

AT 822 PM CDT...TRAINED SPOTTERS REPORTED A FUNNEL CLOUD 7 MILES 
SOUTH SOUTHWEST OF BALFOUR...AND MOVING NORTHEAST. 

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 4784 10118 4737 10131 4736 10079 4768 10069
      4770 10062 4787 10061 4788 10045 4809 10047
      4809 10062 4809 10079 4809 10096 4784 10095

$$

HAMMER/JENSEN

000 
WWUS53 KBIS 130203
SVSBIS

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

NDC049-055-130213-
/O.EXP.KBIS.TO.W.0010.000000T0000Z-060713T0200Z/
MCLEAN ND-MCHENRY ND-
903 PM CDT WED JUL 12 2006

...THE TORNADO WARNING FOR SOUTH CENTRAL MCHENRY AND EASTERN MCLEAN
COUNTIES EXPIRED AT 900 PM CDT...

THE SEVERE THUNDERSTORM THAT PROMPTED THE TORNADO WARNING HAS 
WEAKENED AND MOVED OUT OF THE AREA. IT NO LONGER POSES A SIGNIFICANT 
THREAT.

LAT...LON 4784 10118 4737 10131 4736 10079 4768 10069
      4770 10062 4787 10061 4788 10045 4809 10047
      4809 10062 4809 10079 4809 10096 4784 10095

$$

HAMMER/JENSEN

What forecasters said that day

The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Bismarck, ND wrote its last area forecast discussion before this tornado warning went out at Jul 12, 2:15 PM CDT, 5 hours 50 minutes earlier.

Area forecast discussion, Jul 12, 2:15 PM CDT, 5 hours 50 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BISMARCK ND
215 PM CDT WED JUL 12 2006

.SHORT TERM...TONIGHT THROUGH SATURDAY NIGHT...
A WEAK SURFACE TROUGH WILL MAKE ITS WAY ACROSS THE STATE TONIGHT
WITH SURFACE DEWPOINTS AHEAD OF THE TROUGH IN THE UPPER 50S TO MID
60S.  SHOULD BE DEEP STRONG INSTABILITY THROUGHOUT THE EVENING AND
SEVERE TSTMS ARE LIKELY.  SHOWERS AND TSHWRS NOW IN NORTHWEST HAVE
BEEN ASSOCIATED WITH A WEAK UPPER LEVEL SHORTWAVE MOVING OVER THE
SURFACE TROUGH...BUT A SECOND TROUGH WILL MOVE THROUGH THE AREA THIS
EVENING INCREASING THE SHEAR AND POTENTIAL FOR SEVERE TSTMS. CHANCE
OF TSTMS WILL PERSIST IN THE EASTERN COUNTIES THURSDAY MORNING INTO
THE EARLY AFTERNOON...BUT WITH RIDGING ALOFT TO THE WEST AND WEST TO
NORTHWEST SURFACE FLOW DRYING THE AIRMASS...THERE WILL BE LITTLE
CHANCE OF TSTMS THROUGH THE REMAINDER OF THE PERIOD.  TEMPS WILL BE
A PROBLEM...AS THE MAV MOS IS COOLER THAN CURRENT FORECAST. COOLER
TEMPS ARE REFLECTED IN LOWER THICKNESSES AND COOLING AT MID LEVELS
SO WILL DROP MAX TEMPS A LITTLE THROUGH THE PERIOD. THE RED FLAG
WARNING CONTINUES TO LOOK GOOD.  LIGHTNING MAY BE THE MAIN PROBLEM
IN THE NORTHWEST...BUT WINDS AND LOW RELATIVE HUMIDITIES ARE THE
MAIN PROBLEM IN THE SOUTHWEST AND SOUTH CENTRAL.

.LONG TERM...SUNDAY THROUGH WEDNESDAY NIGHT...
NO SIGNIFICANT CHANGES IN THE LONG TERM TODAY. MODELS ALL IN
AGREEMENT OF KEEPING EXTENDED HOT AND DRY. JUST TWEAKED TEMPS AND
WINDS SOME. LOOKS VERY FAVORABLE FOR 100S AGAIN BY MID NEXT WEEK AS
UPPER LEVEL RIDGE BUILDS BACK INTO REGION.

ECMWF...CANADIAN AND GFS ALL IN AGREEMENT WITH FLATTENING RIDGE
SOMEWHAT ON SUNDAY INTO MONDAY. THIS IS IN RESPONSE TO WEAK CAA
ADVECTION WITH HUDSON BAY LOW...A FEATURE WHICH WILL DOMINATE THE
WEATHER IN EASTERN CANADA. PACIFIC TROUGH WILL DIG INTO WEST COAST
HELPING TO PUSH UPPER RIDGE EAST BY WEDNESDAY.

&&

.BIS WATCHES/WARNINGS/ADVISORIES...
RED FLAG WARNING UNTIL 9 PM CDT /8 PM MDT/ THIS EVENING FOR
SOUTHCENTRAL AND WESTERN AREAS

&&

TSW/JC

Hazardous weather outlook, Jul 12, 5:44 AM CDT, 14 hours 21 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BISMARCK ND
544 AM CDT WED JUL 12 2006

NDZ003>005-011>013-023-025-037-048-051-131045-
RENVILLE-BOTTINEAU-ROLETTE-WARD-MCHENRY-PIERCE-WELLS-FOSTER-
STUTSMAN-LA MOURE-DICKEY-
544 AM CDT WED JUL 12 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL
NORTH DAKOTA...SOUTH CENTRAL NORTH DAKOTA AND SOUTHEAST NORTH
DAKOTA.

.DAY ONE...TODAY AND TONIGHT

THERE IS A GOOD CHANCE OF THUNDERSTORMS THIS EVENING AND LATER
TONIGHT OVER PORTIONS OF CENTRAL NORTH DAKOTA. SOME THUNDERSTORMS
MAY BE SEVERE WITH DAMAGING WINDS AND LARGE HAIL BEING THE MAIN
THREAT.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED. SPOTTERS ARE HIGHLY ENCOURAGED
TO REPORT ANY SEVERE WEATHER TO THE NWS IN BISMARCK.

NDZ001-002-009-010-017>022-031>036-040>047-050-131045-
DIVIDE-BURKE-WILLIAMS-MOUNTRAIL-MCKENZIE-DUNN-MERCER-OLIVER-
MCLEAN-SHERIDAN-GOLDEN VALLEY-BILLINGS-STARK-MORTON-BURLEIGH-
KIDDER-SLOPE-HETTINGER-GRANT-BOWMAN-ADAMS-SIOUX-EMMONS-LOGAN-
MCINTOSH-
544 AM CDT WED JUL 12 2006 /444 AM MDT WED JUL 12 2006/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST NORTH
DAKOTA...SOUTH CENTRAL NORTH DAKOTA...SOUTHEAST NORTH DAKOTA AND
SOUTHWEST NORTH DAKOTA.

.DAY ONE...TODAY AND TONIGHT

A RED FLAG WARNING HAS BEEN ISSUED FOR ALL OF WESTERN AND MOST OF
CENTRAL NORTH DAKOTA FOR THIS AFTERNOON AND EVENING. BREEZY
SOUTHERLY WINDS OF 15 TO 30 MPH...AFTERNOON TEMPERATURES 95 TO 105
AND MINIMUM RELATIVE HUMIDITY VALUES OF 15 TO 25 PERCENT ARE
EXPECTED.

SCATTERED THUNDERSTORMS ARE ALSO EXPECTED TO DEVELOP THIS
AFTERNOON AND TONIGHT. SOME THUNDERSTORMS MAY BE SEVERE WITH
DAMAGING WINDS AND LARGE HAIL.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

DRY AND HOT WEATHER IS EXPECTED TO CONTINUE INTO THE WEEKEND. FIRE
WEATHER CONCERNS WILL CONTINUE EACH DAY WITH FUELS REMAINING VERY
DRY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED. SPOTTERS ARE HIGHLY ENCOURAGED
TO REPORT ANY SEVERE WEATHER TO THE NWS IN BISMARCK.

NH

In the hours before

Local storm report, Jul 12, 5:24 PM CDT, 2 hours 41 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
524 PM CDT WED JUL 12 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0510 PM     HAIL             TOWNER                  48.35N 100.41W
07/12/2006  E0.88 INCH       MCHENRY            ND   PUBLIC

            MAINLY PEA SIZE HAIL WITH SOME STONES BETWEEN PENNY AND
            NICKLE SIZE.

&&

HAMMER/MARTIN

Local storm report, Jul 12, 6:36 PM CDT, 1 hour 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
636 PM CDT WED JUL 12 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0624 PM     HAIL             GLEN ULLIN              46.81N 101.83W
07/12/2006  E0.88 INCH       MORTON             ND   LAW ENFORCEMENT

            DIME SIZE HAIL AS WELL.

&&

VJENSEN

Local storm report, Jul 12, 6:58 PM CDT, 1 hour 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
658 PM CDT WED JUL 12 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0645 PM     HAIL             2 NW BEULAH             47.29N 101.80W
07/12/2006  E1.00 INCH       MERCER             ND   PUBLIC

            QUARTER SIZE HAIL LASTED 10 MINUTES. GUSTY WINDS
            ACCOMPANIED THE STORM WITH 0.44 INCHES OF RAINFALL.

&&

CH/VJ

Local storm report, Jul 12, 7:10 PM CDT, 55 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
710 PM CDT WED JUL 12 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0700 PM     TSTM WND GST     10 N SENTINEL BUTTE     47.06N 103.85W
07/12/2006  E60 MPH          GOLDEN VALLEY      ND   TRAINED SPOTTER

&&

SWICHE

Local storm report, Jul 12, 7:54 PM CDT, 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
754 PM CDT WED JUL 12 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0740 PM     TSTM WND GST     3 NW COLEHARBOR         47.57N 101.27W
07/12/2006  E60 MPH          MCLEAN             ND   TRAINED SPOTTER

            ROOF BLOWN OFF BUILDING. TREES DOWN.

&&

SWICHE

Local storm report, Jul 12, 7:56 PM CDT, 9 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
756 PM CDT WED JUL 12 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0600 PM     TSTM WND DMG     BALTA                   48.17N 100.04W
07/12/2006                   PIERCE             ND   PUBLIC

            NUMEROUS TREES AND POWER LINES DOWN.

&&

SWICHE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 12, 7:03 PM CDT	Severe Thunderstorm Warning	BIS	McLean, Mercer	57 min
Jul 12, 7:26 PM CDT	Severe Thunderstorm Warning	BIS	Grant	41 min
Jul 12, 7:41 PM CDT	Severe Thunderstorm Warning	BIS	Morton	34 min
Jul 12, 8:09 PM CDT	Severe Thunderstorm Warning	BIS	Oliver	66 min
Jul 12, 8:51 PM CDT	Severe Thunderstorm Warning	BIS	Morton	54 min
Jul 12, 8:51 PM CDT	Severe Thunderstorm Warning	BIS	Sheridan, Wells	54 min
Jul 12, 9:14 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh	61 min
Jul 12, 9:36 PM CDT	Severe Thunderstorm Warning	BIS	Pierce	24 min
Jul 12, 9:46 PM CDT	Severe Thunderstorm Warning	BIS	Wells	44 min
Jul 12, 10:26 PM CDT	Severe Thunderstorm Warning	BIS	Sioux	64 min
Jul 12, 10:57 PM CDT	Severe Thunderstorm Warning	BIS	Kidder	63 min
Jul 13, 1:40 AM CDT	Severe Thunderstorm Warning	BIS	Kidder, Stutsman	50 min
Jul 13, 4:29 AM CDT	Red Flag Warning	BIS	Adams, Billings, Bowman, Burke, Burleigh, Divide and 15 more	17 hr

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.