Tornado Warning 1, NWS Great Falls, MT

Issued

Jun 4, 2012, 8:06 PM MDT (02:06 UTC)

Expired

Jun 4, 2012, 8:45 PM MDT

In force

39 min

Issued by

NWS Great Falls, MT

Area

Storm-based polygon

County Chouteau County, MT

The Great Falls radar (KTFX), 107 km from the middle of the area, began a volume at 02:10 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.

218 
WFUS55 KTFX 050206
TORTFX
MTC015-050245-
/O.NEW.KTFX.TO.W.0001.120605T0206Z-120605T0245Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GREAT FALLS MT
806 PM MDT MON JUN 4 2012

THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTH CENTRAL CHOUTEAU COUNTY IN NORTH CENTRAL MONTANA...
  THIS INCLUDES THE CITY OF BIG SANDY...

* UNTIL 845 PM MDT

* AT 801 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 29 MILES
  SOUTHWEST OF BIG SANDY...OR 8 MILES NORTH OF FORT BENTON...MOVING
  NORTHEAST AT 35 MPH.

* LOCATIONS IN THE WARNING INCLUDE BIG SANDY.

THIS REPLACES THE SEVERE THUNDERSTORM WARNING PREVIOUSLY ISSUED FOR
NORTH CENTRAL CHOUTEAU COUNTY.

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING
BASEBALL 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.

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM MDT TUESDAY MORNING
FOR NORTHWESTERN MONTANA.

LAT...LON 4820 11007 4782 11060 4794 11081 4831 11036
      4831 11028
TIME...MOT...LOC 0206Z 219DEG 32KT 4797 11059

$$

MLV

983 
WWUS55 KTFX 050221
SVSTFX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREAT FALLS MT
821 PM MDT MON JUN 4 2012

MTC015-050245-
/O.CON.KTFX.TO.W.0001.000000T0000Z-120605T0245Z/
CHOUTEAU MT-
821 PM MDT MON JUN 4 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 PM MDT FOR NORTH
CENTRAL CHOUTEAU COUNTY...

AT 819 PM MDT...TRAINED WEATHER SPOTTERS REPORTED A FUNNEL CLOUD 
NEAR HIGHWAY 87 NORTH OF LOMA. THIS DANGEROUS STORM IS LOCATED 12 
MILES NORTH OF LOMA...OR 20 MILES WEST OF BIG SANDY...MOVING NORTH 
AT 40 MPH.

THE TORNADO WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF 
CHOUTEAU COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

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 100 AM MDT TUESDAY MORNING
FOR NORTHWESTERN MONTANA.

LAT...LON 4820 11007 4792 11047 4804 11069 4831 11036
      4831 11028
TIME...MOT...LOC 0221Z 199DEG 37KT 4813 11053

$$

MLV

370 
WWUS55 KTFX 050242
SVSTFX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREAT FALLS MT
842 PM MDT MON JUN 4 2012

MTC015-050250-
/O.EXP.KTFX.TO.W.0001.000000T0000Z-120605T0245Z/
CHOUTEAU MT-
842 PM MDT MON JUN 4 2012

...THE TORNADO WARNING FOR NORTH CENTRAL CHOUTEAU COUNTY WILL EXPIRE
AT 845 PM MDT...

NATIONAL WEATHER SERVICE RADAR INDICATED THAT THE STORM THAT 
PROMPTED THE TORNADO WARNING HAS WEAKENED...HOWEVER THIS STORM 
REMAINS SEVERE AND A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 9 
PM MDT.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM MDT TUESDAY MORNING
FOR NORTHWESTERN MONTANA.

LAT...LON 4820 11007 4792 11047 4804 11069 4831 11036
      4831 11028
TIME...MOT...LOC 0240Z 199DEG 37KT 4831 11043

$$

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.