WWUS85 KTFX 222339
SPSTFX

Special Weather Statement
National Weather Service Great Falls MT
539 PM MDT Sat Aug 22 2026
 
MTZ325-330-230100-
Madison River Valley MT-
Gallatin and Madison County Mountains and Centennial Mountains MT-
539 PM MDT Sat Aug 22 2026

...STRONG THUNDERSTORMS WILL IMPACT SOUTHEASTERN MADISON...
SOUTHEASTERN BEAVERHEAD AND SOUTH CENTRAL GALLATIN COUNTIES THROUGH
700 PM MDT...

At 538 PM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from 20 miles southeast of Ennis to 16 miles
northwest of Henrys Lake to 7 miles northwest of Kilgore. Movement
was east at 25 mph.

HAZARD...Wind gusts of 50 to 55 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around 
         unsecured objects. Minor hail damage to vegetation is 
         possible.

Locations impacted include...
West Yellowstone, Big Sky, Lakeview, Yellowstone Village, Targhee
Pass, Raynolds Pass, and Red Rock Pass.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 4475 11138 4470 11149 4466 11147 4459 11153
      4455 11147 4453 11151 4456 11171 4451 11182
      4456 11187 4452 11210 4455 11223 4480 11190
      4519 11163 4529 11150 4531 11104 4508 11104
      4511 11110 4505 11115 4501 11110 4449 11111
TIME...MOT...LOC 2338Z 249DEG 20KT 4510 11150 4479 11167 4449 11197 

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...55 MPH

$$

Glinskas