Severe Thunderstorm Warning 22, NWS Great Falls, MT

Issued

Jul 5, 2021, 10:25 PM MDT (04:25 UTC)

Expired

Jul 5, 2021, 11:15 PM MDT

In force

50 min

Issued by

NWS Great Falls, MT

Area

Storm-based polygon

Hail

1.0 in

Wind

70.0 mph

Counties Glacier County, MT, Toole County, MT

The Great Falls radar (KTFX), 154 km from the middle of the area, began a volume at 04:23 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.

444 
WUUS55 KTFX 060425
SVRTFX
MTC035-101-060515-
/O.NEW.KTFX.SV.W.0022.210706T0425Z-210706T0515Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Great Falls MT
1025 PM MDT Mon Jul 5 2021

The National Weather Service in Great Falls has issued a

* Severe Thunderstorm Warning for...
  Northeastern Glacier County in north central Montana...
  Northern Toole County in north central Montana...

* Until 1115 PM MDT.

* At 1024 PM MDT, a severe thunderstorm was located 16 miles west of
  Sunburst, or 20 miles north of Cut Bank, moving southeast at 35
  mph.

  HAZARD...70 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect considerable 
           tree damage. Wind damage is also likely to mobile homes, 
           roofs, and outbuildings.

* Locations impacted include...
  Shelby, Cut Bank, Sunburst, Kevin, Sweet Grass, Ethridge, Oilmont,
  Santa Rita and Ferdig.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Wind damage with this storm will occur before any rain or lightning.
Do not wait for the sound of thunder before taking cover. SEEK
SHELTER IMMEDIATELY inside a sturdy structure and stay away from
windows.

&&

LAT...LON 4899 11128 4846 11178 4860 11262 4900 11236
TIME...MOT...LOC 0424Z 293DEG 32KT 4892 11227 

HAIL...1.00IN
WIND...70MPH
 
$$

PN

920 
WWUS55 KTFX 060502
SVSTFX

Severe Weather Statement
National Weather Service Great Falls MT
1102 PM MDT Mon Jul 5 2021

MTC035-101-060515-
/O.CON.KTFX.SV.W.0022.000000T0000Z-210706T0515Z/
Glacier MT-Toole MT-
1102 PM MDT Mon Jul 5 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 PM MDT
FOR NORTHEASTERN GLACIER AND NORTHERN TOOLE COUNTIES...

At 1102 PM MDT, a severe thunderstorm was located near Kevin, or 20
miles north of Shelby, moving southeast at 35 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Shelby, Sunburst, Kevin, Sweet Grass, Ethridge, Oilmont and Ferdig. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4899 11128 4846 11178 4856 11232 4900 11224
TIME...MOT...LOC 0502Z 296DEG 31KT 4880 11192 

HAIL...1.00IN
WIND...60MPH
 
$$

PN

655 
WWUS55 KTFX 060507
SVSTFX

Severe Weather Statement
National Weather Service Great Falls MT
1107 PM MDT Mon Jul 5 2021

MTC035-101-060516-
/O.EXP.KTFX.SV.W.0022.000000T0000Z-210706T0515Z/
Glacier MT-Toole MT-
1107 PM MDT Mon Jul 5 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN GLACIER AND
NORTHERN TOOLE COUNTIES WILL EXPIRE AT 1115 PM MDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However gusty 
winds, accumulating small hail, and heavy rain are still possible 
with this thunderstorm.

LAT...LON 4899 11128 4846 11178 4856 11232 4900 11224
TIME...MOT...LOC 0506Z 293DEG 32KT 4879 11189 

$$

PN

Severe Thunderstorm Warnings in Montana, 2021Every severe thunderstorm warning in 2021

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.