Tornado Warning 8, NWS Great Falls, MT

Issued

Jun 5, 2012, 7:29 PM MDT (01:29 UTC)

Expired

Jun 5, 2012, 8:15 PM MDT

In force

46 min

Issued by

NWS Great Falls, MT

Area

Storm-based polygon

Counties Blaine County, MT, Chouteau County, MT, Hill County, MT

The Great Falls radar (KTFX), 141 km from the middle of the area, began a volume at 01:29 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.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

520 
WFUS55 KTFX 060129
TORTFX
MTC005-015-041-060215-
/O.NEW.KTFX.TO.W.0008.120606T0129Z-120606T0215Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GREAT FALLS MT
729 PM MDT TUE JUN 5 2012

THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS ISSUED A

* TORNADO WARNING FOR...
  WEST CENTRAL BLAINE COUNTY IN NORTH CENTRAL MONTANA...
  NORTHEASTERN CHOUTEAU COUNTY IN NORTH CENTRAL MONTANA...
  THIS INCLUDES THE CITY OF BIG SANDY...
  SOUTHEASTERN HILL COUNTY IN NORTH CENTRAL MONTANA...

* UNTIL 815 PM MDT

* AT 724 PM MDT...A THUNDERSTORM WITH A HISTORY OF PRODUCING 
TORNADOES WAS LOCATED 21 MILES SOUTHEAST OF BIG SANDY...MOVING NORTH 
AT 40 MPH.

* LOCATIONS IN THE WARNING INCLUDE BIG SANDY AND BOX ELDER.

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
TENNIS BALL SIZE HAIL.

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.

THIS STORM HAS A HISTORY OF PRODUCING TORNADOES. TAKE COVER NOW.
ABANDON MOBILE HOMES AND VEHICLES. IF POSSIBLE...MOVE TO A BASEMENT
OR STORM SHELTER. OTHERWISE...MOVE TO AN INTERIOR ROOM OR HALLWAY ON
THE LOWEST FLOOR. STAY AWAY FROM WINDOWS.

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM MDT TUESDAY EVENING
FOR NORTHWESTERN MONTANA.

LAT...LON 4854 11012 4845 10926 4774 10961 4783 11025
TIME...MOT...LOC 0129Z 186DEG 40KT 4802 10980

$$

MLS

675 
WWUS55 KTFX 060142
SVSTFX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREAT FALLS MT
742 PM MDT TUE JUN 5 2012

MTC005-015-041-060215-
/O.CON.KTFX.TO.W.0008.000000T0000Z-120606T0215Z/
BLAINE MT-CHOUTEAU MT-HILL MT-
742 PM MDT TUE JUN 5 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM MDT FOR
SOUTHEASTERN HILL...NORTHEASTERN CHOUTEAU AND WEST CENTRAL BLAINE
COUNTIES...

AT 733 PM MDT...TRAINED WEATHER SPOTTERS REPORTED A CONE TORNADO.  
THE TORNADO IS LOCATED 9 MILES SOUTH OF ROCKY BOY...OR 16 MILES EAST 
OF BIG SANDY...MOVING NORTH AT 45 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BOX
ELDER AND LLOYD

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT USE HIGHWAY OVERPASSES FOR SHELTER. OVERPASSES DO NOT PROVIDE
PROTECTION FROM TORNADIC WINDS. VEHICLES STOPPED UNDER BRIDGES BLOCK
TRAFFIC AND PREVENT PEOPLE FROM GETTING OUT OF THE STORM'S PATH AND
TO SHELTER. IF YOU CANNOT DRIVE AWAY FROM THE TORNADO...GET OUT OF
YOUR VEHICLE AND LIE FLAT IN A DITCH AS A LAST RESORT.

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.

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM MDT TUESDAY EVENING
FOR NORTHWESTERN MONTANA.

LAT...LON 4793 11023 4854 11012 4845 10926 4783 10957
TIME...MOT...LOC 0142Z 186DEG 40KT 4816 10977

$$

MLV

941 
WWUS55 KTFX 060210
SVSTFX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREAT FALLS MT
810 PM MDT TUE JUN 5 2012

MTC005-015-041-060221-
/O.EXP.KTFX.TO.W.0008.000000T0000Z-120606T0215Z/
BLAINE MT-CHOUTEAU MT-HILL MT-
810 PM MDT TUE JUN 5 2012

...THE TORNADO WARNING FOR SOUTHEASTERN HILL...NORTHEASTERN CHOUTEAU
AND WEST CENTRAL BLAINE COUNTIES WILL EXPIRE AT 815 PM MDT...

NATIONAL WEATHER SERVICE RADAR INDICATED THAT THE SEVERE THUNDERSTORM
THAT PROMPTED THE TORNADO WARNING HAD EXITED THE WARNED 
AREA...HOWEVER THIS STORM REMAINS SEVERE AND A NEW TORNADO WARNING 
IS NOW IN EFFECT.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM MDT TUESDAY EVENING
FOR NORTHWESTERN MONTANA.

LAT...LON 4793 11023 4854 11012 4845 10926 4783 10957
TIME...MOT...LOC 0211Z 186DEG 40KT 4848 10971

$$

MLV

Tornado Warnings in Montana, 2012Every tornado warning in 2012Tornadoes in 2012

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.