Severe Thunderstorm Warning 52, NWS Great Falls, MT

Issued

Jul 22, 2021, 2:13 PM MDT (20:13 UTC)

Expired

Jul 22, 2021, 2:45 PM MDT

In force

32 min

Issued by

NWS Great Falls, MT

Area

Storm-based polygon

Hail

0.75 in

Wind

70.0 mph

County Gallatin County, MT

The Great Falls radar (KTFX), 183 km from the middle of the area, began a volume at 20:13 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.

743 
WUUS55 KTFX 222013
SVRTFX
MTC031-222045-
/O.NEW.KTFX.SV.W.0052.210722T2013Z-210722T2045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Great Falls MT
213 PM MDT Thu Jul 22 2021

The National Weather Service in Great Falls has issued a

* Severe Thunderstorm Warning for...
  Northeastern Gallatin County in south central Montana...

* Until 245 PM MDT.

* At 213 PM MDT, a severe thunderstorm was located over Belgrade, or
  9 miles northwest of Bozeman, moving northeast at 30 mph.

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

  SOURCE...Radar indicated.

  IMPACT...Expect considerable tree damage. Damage is likely to 
           mobile homes, roofs, and outbuildings.

* Locations impacted include...
  Bozeman and Belgrade. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4568 11115 4584 11128 4606 11086 4598 11079
      4579 11080
TIME...MOT...LOC 2013Z 239DEG 24KT 4580 11113 

HAIL...0.75IN
WIND...70MPH
 
$$

SC

657 
WWUS55 KTFX 222034
SVSTFX

Severe Weather Statement
National Weather Service Great Falls MT
234 PM MDT Thu Jul 22 2021

MTC031-222045-
/O.CON.KTFX.SV.W.0052.000000T0000Z-210722T2045Z/
Gallatin MT-
234 PM MDT Thu Jul 22 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 245 PM MDT
FOR NORTHEASTERN GALLATIN COUNTY...

At 234 PM MDT, a severe thunderstorm was located 12 miles northeast
of Belgrade, or 14 miles north of Bozeman, moving northeast at 30
mph.

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

SOURCE...Radar indicated.

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings.

This severe thunderstorm will remain over mainly rural areas of
northeastern Gallatin County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4573 11099 4591 11114 4606 11086 4598 11079
      4579 11080
TIME...MOT...LOC 2034Z 239DEG 24KT 4587 11095 

HAIL...0.75IN
WIND...70MPH
 
$$

SC

125 
WWUS55 KTFX 222042
SVSTFX

Severe Weather Statement
National Weather Service Great Falls MT
242 PM MDT Thu Jul 22 2021

MTC031-222052-
/O.EXP.KTFX.SV.W.0052.000000T0000Z-210722T2045Z/
Gallatin MT-
242 PM MDT Thu Jul 22 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN GALLATIN COUNTY
WILL EXPIRE AT 245 PM MDT...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.  However small hail and gusty winds are still
possible with this thunderstorm.

LAT...LON 4573 11099 4591 11114 4606 11086 4598 11079
      4579 11080
TIME...MOT...LOC 2042Z 239DEG 24KT 4589 11091 

$$

SC

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.