264 
WUUS55 KBYZ 222247
SVRBYZ
MTC003-WYC033-222345-
/O.NEW.KBYZ.SV.W.0042.260622T2247Z-260622T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
Severe Thunderstorm Warning
National Weather Service Billings MT
447 PM MDT Mon Jun 22 2026

The National Weather Service in Billings has issued a

* Severe Thunderstorm Warning for...
  Southeastern Big Horn County in south central Montana...
  Eastern Sheridan County in north central Wyoming...

* Until 545 PM MDT.

* At 447 PM MDT, A severe thunderstorm was located 10 miles southeast
  of Lodge Grass, or 31 miles northwest of Sheridan, moving southeast
  at 55 mph.

  THIS IS A DESTRUCTIVE STORM FOR EAST OF LODGE GRASS.

  HAZARD...80 mph wind gusts and two inch hail.

  SOURCE...A weather station west of Lodge Grass reported a wind gust
           of 71 mph at 4:30.

  IMPACT...Flying debris will be dangerous to those caught without
           shelter. Mobile homes will be heavily damaged. Expect
           considerable damage to roofs, windows, and vehicles.
           Extensive tree damage and power outages are likely.

* Locations impacted include...
  Tongue River Reservoir, Rosebud Battlefield Park and Wyola.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Seek shelter now inside an interior room on the lowest floor of a
well-built structure. This storm is capable of producing widespread
destructive winds and dangerous hail.

&&

LAT...LON 4514 10741 4533 10723 4495 10616 4463 10647
TIME...MOT...LOC 2245Z 304DEG 45KT 4519 10724

THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...2.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...80 MPH

$$

Torgerson

987 
WWUS55 KBYZ 222311
SVSBYZ

Severe Weather Statement
National Weather Service Billings MT
511 PM MDT Mon Jun 22 2026

MTC003-WYC033-222345-
/O.CON.KBYZ.SV.W.0042.000000T0000Z-260622T2345Z/
Big Horn MT-Sheridan WY-
511 PM MDT Mon Jun 22 2026

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM MDT FOR
SOUTHEASTERN BIG HORN AND EASTERN SHERIDAN COUNTIES...

At 511 PM MDT, A severe thunderstorm was located 16 miles north of
Sheridan, moving southeast at 55 mph.

HAZARD...70 mph wind gusts and ping pong ball size hail.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail
         damage to roofs, siding, windows, and vehicles. Expect
         considerable tree damage. Wind damage is also likely to
         mobile homes, roofs, and outbuildings.

Locations impacted include...
  Tongue River Reservoir, Rosebud Battlefield Park and Wyola.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Anyone outdoors should move to shelter inside a well-built structure
and stay away from windows. This storm is capable of producing
widespread damaging winds and large hail.

&&

LAT...LON 4514 10741 4533 10723 4495 10616 4463 10647
TIME...MOT...LOC 2247Z 304DEG 45KT 4518 10720

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH

$$

Torgerson

148 
WWUS55 KBYZ 222343
SVSBYZ

Severe Weather Statement
National Weather Service Billings MT
543 PM MDT Mon Jun 22 2026

MTC003-WYC033-222353-
/O.EXP.KBYZ.SV.W.0042.000000T0000Z-260622T2345Z/
Big Horn MT-Sheridan WY-
543 PM MDT Mon Jun 22 2026

...SEVERE THUNDERSTORM WARNING WILL EXPIRE AT 545 PM MDT FOR
SOUTHEASTERN BIG HORN AND EASTERN SHERIDAN COUNTIES...

This thunderstorm warning has been allowed to expire and has been
replaced by a new thunderstorm warning for Sheridan County.

A Severe Thunderstorm Watch remains in effect until 800 PM MDT Monday
for portions of south central Montana and north central Wyoming.

&&

LAT...LON 4514 10741 4533 10723 4495 10616 4463 10647
TIME...MOT...LOC 2311Z 304DEG 45KT 4501 10685

$$

Torgerson