Alert archive / North Dakota / Tornado Warnings in 2009

Tornado Warning 4, NWS Bismarck, ND

June 18, 2009McIntosh County, North Dakota

NWS Bismarck, ND issued this tornado warning at Jun 18, 2009, 3:09 PM CDT for McIntosh County, North Dakota. It was in force for 36 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: Jun 18, 2009, 3:09 PM CDT (20:09 UTC)
Expired: Jun 18, 2009, 3:45 PM CDT
In force: 36 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon

County McIntosh County, ND

The radar

The Aberdeen radar (KABR), 95 km from the middle of the area, began a volume at 20:11 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
Jun 18, 1:50 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 8.2 hours before the alert went out and 138 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: 1167 J/kg
Mixed-layer CIN: -67 J/kg
Mixed-layer LCL: 1152 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 35 m²/s²
0-3 km storm-relative helicity: 52 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 182009
TORBIS
NDC051-182045-
/O.NEW.KBIS.TO.W.0004.090618T2009Z-090618T2045Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
309 PM CDT THU JUN 18 2009

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN MCINTOSH COUNTY IN SOUTHEAST NORTH DAKOTA...

* UNTIL 345 PM CDT

* AT 308 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 7 MILES NORTHEAST OF ASHLEY...OR 61 MILES
  SOUTHWEST OF JAMESTOWN...AND MOVING EAST AT 25 MPH.

* THIS TORNADIC STORM WILL AFFECT MAINLY RURAL AREAS OF EASTERN
  MCINTOSH COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 ALWAYS 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.

IN ADDITION TO THE TORNADO...THIS STORM IS EXPECTED TO PRODUCE LARGE
DAMAGING HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS WELL AWAY FROM THE
STORM CENTER.

THIS IS A SUPERCELL THUNDERSTORM. IN ADDITION TO TORNADOES...
SUPERCELLS ARE CAPABLE OF PRODUCING EXTREMELY LARGE HAIL AND
DESTRUCTIVE STRAIGHT LINE WINDS. ACT QUICKLY AND MOVE TO SAFETY
INSIDE A STURDY SHELTER...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM
ON THE LOWEST FLOOR.

&&

LAT...LON 4628 9901 4601 9901 4599 9928 4614 9946
TIME...MOT...LOC 2009Z 259DEG 20KT 4611 9925

$$

BIRK

2 follow-up statements

000 
WWUS53 KBIS 182030
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
330 PM CDT THU JUN 18 2009

NDC051-182045-
/O.CON.KBIS.TO.W.0004.000000T0000Z-090618T2045Z/
MCINTOSH ND-
330 PM CDT THU JUN 18 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 345 PM CDT FOR
NORTHEASTERN MCINTOSH COUNTY...

AT 330 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED OVER EASTERN MCINTOSH
COUNTY...OR 57 MILES SOUTH OF JAMESTOWN...MOVING EAST AT 25 MPH.

LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OFEXTREME EASTERN MCINTOSH COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 ALWAYS 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.

IN ADDITION TO THE TORNADO...THIS STORM IS EXPECTED TO PRODUCE LARGE
DAMAGING HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS WELL AWAY FROM THE
STORM CENTER.

THIS IS A SUPERCELL THUNDERSTORM. IN ADDITION TO TORNADOES...
SUPERCELLS ARE CAPABLE OF PRODUCING EXTREMELY LARGE HAIL AND
DESTRUCTIVE STRAIGHT LINE WINDS. ACT QUICKLY AND MOVE TO SAFETY
INSIDE A STURDY SHELTER...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM
ON THE LOWEST FLOOR.

&&

LAT...LON 4600 9920 4617 9921 4628 9901 4601 9901
TIME...MOT...LOC 2030Z 262DEG 22KT 4611 9903

$$

BIRK

000 
WWUS53 KBIS 182048
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
348 PM CDT THU JUN 18 2009

NDC051-182056-
/O.EXP.KBIS.TO.W.0004.000000T0000Z-090618T2045Z/
MCINTOSH ND-
348 PM CDT THU JUN 18 2009

...THE TORNADO WARNING FOR NORTHEASTERN MCINTOSH COUNTY EXPIRES AT
345 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

VERY HEAVY RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND
UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED
ROADWAY.

&&

..HOWEVER HAIL AND GUSTY WINDS ARE STILL POSSIBLE WITH THIS 
THUNDERSTORM. A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR 
THE AREA UNTIL FOR 4 PM.

IN ADDITION...STRONG THUNDERSTORMS MAY REDEVELOP...AND A SEVERE 
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 9 PM.

LAT...LON 4600 9920 4617 9921 4628 9901 4601 9901
TIME...MOT...LOC 2030Z 262DEG 22KT 4611 9903

$$

BIRK

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 17, 7:13 PM CDT	Areal Flood Advisory	BIS	Dunn	3 hr
Jun 18, 12:04 PM CDT	Areal Flood Advisory	BIS	Grant, Morton, Sioux	6 hr
Jun 18, 12:48 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Sioux	57 min
Jun 18, 1:12 PM CDT	Severe Thunderstorm Warning	BIS	LaMoure	51 min
Jun 18, 2:25 PM CDT	Severe Thunderstorm Warning	BIS	Renville, Ward	35 min
Jun 18, 2:59 PM CDT	Severe Thunderstorm Warning	BIS	McIntosh	61 min
Jun 18, 3:41 PM CDT	Severe Thunderstorm Warning	BIS	Dickey	64 min
Jun 18, 3:58 PM CDT	Severe Thunderstorm Warning	BIS	Dickey, LaMoure, Logan	62 min
Jun 18, 4:17 PM CDT	Severe Thunderstorm Warning	BIS	Dickey, LaMoure	58 min
Jun 18, 4:48 PM CDT	Severe Thunderstorm Warning	BIS	Bottineau	42 min
Jun 18, 4:58 PM CDT	Severe Thunderstorm Warning	BIS	Ward	62 min
Jun 18, 5:56 PM CDT	Severe Thunderstorm Warning	BIS	Rolette	49 min
Jun 18, 6:45 PM CDT	Severe Thunderstorm Warning	BIS	Bottineau, Rolette	51 min

Nearby

Tornado Warnings in North Dakota, 2009 Every tornado warning in 2009 Tornadoes in 2009

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.