778 
WUUS55 KRIW 201918
SVRRIW
WYC013-202000-
/O.NEW.KRIW.SV.W.0008.260620T1918Z-260620T2000Z/

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

The National Weather Service in Riverton has issued a

* Severe Thunderstorm Warning for...
  Central Fremont County in central Wyoming...

* Until 200 PM MDT.

* At 117 PM MDT, a severe thunderstorm was located near Bull Lake,
  which is 14 miles northwest of Fort Washakie, moving east at 40
  mph.

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

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Kinnear and Ocean Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

If on or near Ocean Lake or Pilot Butte Reservoir, get away from the 
water and move indoors or inside a vehicle. Remember, lightning can 
strike out to 15 miles from the parent thunderstorm. If you can hear 
thunder, you are close enough to be struck by lightning. Move to 
safe shelter now!  Do not be caught on the water in a thunderstorm.

&&

LAT...LON 4272 10912 4343 10948 4355 10874 4273 10804
TIME...MOT...LOC 1917Z 267DEG 33KT 4312 10912 

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

$$

Rowe

123 
WWUS55 KRIW 201936
SVSRIW

Severe Weather Statement
National Weather Service Riverton WY
136 PM MDT Sat Jun 20 2026

WYC013-202000-
/O.CON.KRIW.SV.W.0008.000000T0000Z-260620T2000Z/
Fremont-
136 PM MDT Sat Jun 20 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 PM MDT
FOR CENTRAL FREMONT COUNTY...

At 136 PM MDT, a severe thunderstorm was located near Morton, which
is 8 miles north of Fort Washakie, moving east at 40 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Riverton, Lander, Fort Washakie, Pavillion, Arapahoe, Ethete, Hudson,
Morton, Kinnear, Crowheart, Milford, Pilot Butte Reservoir, Sinks
Canyon State Park, Sand Draw, Dickinson Park, Bull Lake, Ocean Lake,
Diversion Dam Rest Area, Sinks Canyon Campground, and Dickinson Creek
Campground.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

If on or near Ocean Lake or Pilot Butte Reservoir, get away from the 
water and move indoors or inside a vehicle. Remember, lightning can 
strike out to 15 miles from the parent thunderstorm. If you can hear 
thunder, you are close enough to be struck by lightning. Move to 
safe shelter now!  Do not be caught on the water in a thunderstorm.

&&

LAT...LON 4302 10927 4348 10918 4355 10874 4273 10804
      4272 10912
TIME...MOT...LOC 1936Z 266DEG 36KT 4313 10884 

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

$$

Rowe

853 
WWUS55 KRIW 202000
SVSRIW

Severe Weather Statement
National Weather Service Riverton WY
200 PM MDT Sat Jun 20 2026

WYC013-202010-
/O.EXP.KRIW.SV.W.0008.000000T0000Z-260620T2000Z/
Fremont-
200 PM MDT Sat Jun 20 2026

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL FREMONT COUNTY HAS
EXPIRED...

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 has been allowed to expire.  However, gusty
winds are still possible with this thunderstorm.

A Severe Thunderstorm Watch remains in effect until 900 PM MDT for
central Wyoming.

&&

LAT...LON 4302 10927 4348 10918 4355 10874 4273 10804
      4272 10912
TIME...MOT...LOC 2000Z 267DEG 33KT 4314 10857 

$$

Rowe