285 
WUUS55 KCYS 202125
SVRCYS
WYC001-007-009-202230-
/O.NEW.KCYS.SV.W.0085.260620T2125Z-260620T2230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Cheyenne WY
325 PM MDT Sat Jun 20 2026

The National Weather Service in Cheyenne has issued a

* Severe Thunderstorm Warning for...
  Northeastern Carbon County in south central Wyoming...
  North central Albany County in southeastern Wyoming...
  Southwestern Converse County in east central Wyoming...

* Until 430 PM MDT.

* At 325 PM MDT, severe thunderstorms were located along a line
  extending from 8 miles west of Shirley Basin to 9 miles southwest
  of Battle Mountain to near Hanna, moving east at 30 mph.

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

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Hanna, Medicine Bow, Rock River, Elk Mountain, Shirley Basin,
  McFadden, Wheatland Reservoir Number 3, Boxelder, Curtis Gulch
  Campground, Campbell Creek Campground, and Arlington.

This includes Interstate 80 in Wyoming between mile markers 239 and
274.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Wind damage with these storms 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 4172 10677 4209 10656 4243 10655 4243 10608
      4276 10607 4276 10601 4259 10556 4187 10569
      4157 10620
TIME...MOT...LOC 2125Z 258DEG 25KT 4231 10637 4203 10638 4183 10655 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Natoli

174 
WWUS55 KCYS 202154
SVSCYS

Severe Weather Statement
National Weather Service Cheyenne WY
354 PM MDT Sat Jun 20 2026

WYC001-007-009-202230-
/O.CON.KCYS.SV.W.0085.000000T0000Z-260620T2230Z/
Carbon WY-Albany WY-Converse WY-
354 PM MDT Sat Jun 20 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM MDT
FOR NORTHEASTERN CARBON...NORTH CENTRAL ALBANY AND SOUTHWESTERN
CONVERSE COUNTIES...

At 354 PM MDT, severe thunderstorms were located along a line
extending from 9 miles east of Shirley Basin to 9 miles east of
Battle Mountain to Medicine Bow, moving east 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...
Medicine Bow, Rock River, Shirley Basin, Wheatland Reservoir Number
3, Boxelder, Curtis Gulch Campground, and Campbell Creek Campground.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Wind damage with these storms 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 4184 10644 4203 10638 4243 10642 4243 10608
      4276 10607 4276 10601 4259 10556 4187 10569
      4170 10598
TIME...MOT...LOC 2154Z 259DEG 32KT 4240 10603 4212 10604 4192 10621 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Natoli

363 
WWUS55 KCYS 202232
SVSCYS

Severe Weather Statement
National Weather Service Cheyenne WY
432 PM MDT Sat Jun 20 2026

WYC001-007-009-202241-
/O.EXP.KCYS.SV.W.0085.000000T0000Z-260620T2230Z/
Carbon WY-Albany WY-Converse WY-
432 PM MDT Sat Jun 20 2026

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CARBON...NORTH
CENTRAL ALBANY AND SOUTHWESTERN CONVERSE COUNTIES HAS EXPIRED...

The storms which prompted the warning have weakened below severe
limits, and have exited the warned area. Therefore, the warning has
been allowed to expire.  However, gusty winds are still possible with
these thunderstorms.

A Severe Thunderstorm Watch remains in effect until 900 PM MDT for
south central, southeastern and east central Wyoming.

&&

LAT...LON 4184 10644 4203 10638 4243 10642 4243 10608
      4276 10607 4276 10601 4259 10556 4187 10569
      4170 10598
TIME...MOT...LOC 2231Z 270DEG 25KT 4245 10569 4217 10570 4197 10587 

$$

Natoli