Severe Thunderstorm Warning 7, NWS Great Falls, MT

Issued

Jun 4, 2012, 7:53 PM MDT (01:53 UTC)

Expired

Jun 4, 2012, 9:00 PM MDT

In force

67 min

Issued by

NWS Great Falls, MT

Area

Storm-based polygon

Counties Chouteau County, MT, Hill County, MT, Liberty County, MT

The Great Falls radar (KTFX), 78 km from the middle of the area, began a volume at 01:56 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.

929 
WUUS55 KTFX 050153
SVRTFX
MTC015-041-051-050300-
/O.NEW.KTFX.SV.W.0007.120605T0153Z-120605T0300Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREAT FALLS MT
753 PM MDT MON JUN 4 2012

THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CHOUTEAU COUNTY IN NORTH CENTRAL MONTANA...
  SOUTHWESTERN HILL COUNTY IN NORTH CENTRAL MONTANA...  
  SOUTHERN LIBERTY COUNTY IN NORTH CENTRAL MONTANA...  

* UNTIL 900 PM MDT

* AT 751 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 4 MILES NORTHWEST OF FORT BENTON...MOVING
  NORTHEAST AT 50 MPH.

* LOCATIONS IN THE WARNING INCLUDE BIG SANDY...BOX ELDER...CHESTER...
  FORT BENTON...INVERNESS...JOPLIN AND THE KNEES.

HAIL TO THE SIZE OF BASEBALLS AND WIND GUSTS TO 70 MPH ARE LIKELY
WITH THIS STORM.

THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS AND LARGE
HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A 
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

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

&&

LAT...LON 4817 10960 4758 11037 4762 11103 4770 11099
      4770 11126 4798 11140 4873 11096
TIME...MOT...LOC 0153Z 224DEG 37KT 4787 11071

$$

MLV

135 
WWUS55 KTFX 050221 RRA
SVSTFX

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

MTC015-041-051-050300-
/O.CON.KTFX.SV.W.0007.000000T0000Z-120605T0300Z/
CHOUTEAU MT-HILL MT-LIBERTY MT-
821 PM MDT MON JUN 4 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM MDT
FOR SOUTHEASTERN LIBERTY...SOUTHWESTERN HILL AND NORTHERN CHOUTEAU
COUNTIES...

AT 819 PM MDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING BASEBALL SIZE HAIL...AND
DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THIS STORM WAS LOCATED 9
MILES NORTH OF LOMA...OR 17 MILES SOUTHWEST OF BIG SANDY...MOVING
NORTHEAST AT 45 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
CHESTER...JOPLIN...INVERNESS...RUDYARD.

A TORNADO WARNING ALSO REMAINS IN EFFECT FOR THE CENTRAL PORTIONS OF 
CHOUTEAU COUNTY UNTIL 845 PM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DOPPLER RADAR HAS INDICATED SOME ROTATION WITHIN THIS STORM. WHILE 
NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A TORNADO 
IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY 
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

&&

LAT...LON 4770 11057 4799 11120 4873 11096 4817 10960
TIME...MOT...LOC 0220Z 224DEG 37KT 4807 11042

$$

BRUSDA

851 
WWUS55 KTFX 050255
SVSTFX

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

MTC015-041-051-050305-
/O.EXP.KTFX.SV.W.0007.000000T0000Z-120605T0300Z/
CHOUTEAU MT-HILL MT-LIBERTY MT-
855 PM MDT MON JUN 4 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN LIBERTY...
SOUTHWESTERN HILL AND NORTHERN CHOUTEAU COUNTIES WILL EXPIRE AT 900
PM MDT...

NATIONAL WEATHER SERVICE RADAR INDICATED THAT THE SEVERE THUNDERSTORM
THAT PROMPTED THE WARNING HAS EXPIRED...HOWEVER THIS STORM REMAINS
SEVERE AND A NEW THUNDERSTORM WARNING IS NOW IN EFFECT.

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

LAT...LON 4770 11057 4799 11120 4873 11096 4817 10960
TIME...MOT...LOC 0255Z 224DEG 37KT 4833 11004

$$

MLV

Severe Thunderstorm Warnings in Montana, 2012Every severe thunderstorm warning 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.