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Home Return to list Severe Thunderstorm Warning 0022 Issued by the Riverton Forecast Office
Action: New Issued At: 2026-06-20 20:44:06
800
WUUS55 KRIW 210143
SVRRIW
WYC013-037-210230-
/O.NEW.KRIW.SV.W.0022.260621T0143Z-260621T0230Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Riverton WY
743 PM MDT Sat Jun 20 2026
The National Weather Service in Riverton has issued a
* Severe Thunderstorm Warning for...
Southwestern Fremont County in central Wyoming...
Central Sweetwater County in south central Wyoming...
* Until 830 PM MDT.
* At 741 PM MDT, a severe thunderstorm was located near Worthen
Meadows Reservoir, which is 12 miles west of Lander, moving east at
35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* This severe thunderstorm will be near...
Sinks Canyon State Park around 750 PM MDT.
Lander around 755 PM MDT.
Milford around 800 PM MDT.
Other locations in the path of this severe thunderstorm include
Hudson.
This includes Interstate 80 between mile markers 112 and 150.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4138 10914 4227 10904 4283 10910 4340 10958
4356 10905 4301 10848 4271 10835 4225 10834
4137 10845
TIME...MOT...LOC 0141Z 251DEG 30KT 4277 10896
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...OBSERVED
MAX WIND GUST...60 MPH
$$
Rowe
Action: Continued Issued At: 2026-06-20 21:04:07
238
WWUS55 KRIW 210203
SVSRIW
Severe Weather Statement
National Weather Service Riverton WY
803 PM MDT Sat Jun 20 2026
WYC013-037-210230-
/O.CON.KRIW.SV.W.0022.000000T0000Z-260621T0230Z/
Fremont-Sweetwater-
803 PM MDT Sat Jun 20 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM MDT
FOR CENTRAL FREMONT AND NORTH CENTRAL SWEETWATER COUNTIES...
At 803 PM MDT, severe thunderstorms were located along a line
extending from 7 miles north of Diversion Dam Rest Area to near Red
Canyon to 20 miles southeast of Oregon Buttes to 11 miles south of
Bitter Creek Rest Area, moving east at 55 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Hudson, Kinnear, Morton, Pilot Butte Reservoir and Arapahoe.
This includes Interstate 80 between mile markers 133 and 150.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4137 10871 4138 10875 4209 10873 4265 10875
4340 10957 4351 10920 4356 10905 4301 10848
4271 10835 4225 10834 4137 10845
TIME...MOT...LOC 0203Z 278DEG 46KT 4334 10901 4264 10856 4208 10855
4147 10856
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...OBSERVED
MAX WIND GUST...60 MPH
$$
Rowe
Action: Continued Issued At: 2026-06-20 21:17:07
671
WWUS55 KRIW 210216
SVSRIW
Severe Weather Statement
National Weather Service Riverton WY
816 PM MDT Sat Jun 20 2026
WYC013-037-210230-
/O.CON.KRIW.SV.W.0022.000000T0000Z-260621T0230Z/
Fremont-Sweetwater-
816 PM MDT Sat Jun 20 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM MDT
FOR SOUTH CENTRAL FREMONT AND NORTH CENTRAL SWEETWATER COUNTIES...
At 816 PM MDT, severe thunderstorms were located along a line
extending from 9 miles east of Red Canyon to 15 miles northwest of
Sweetwater Station to 24 miles southeast of Oregon Buttes to 11 miles
southeast of Bitter Creek Rest Area, moving east at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Bitter Creek Rest Area and Bitter Creek.
This includes Interstate 80 between mile markers 137 and 150.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4137 10869 4208 10867 4262 10867 4268 10835
4225 10834 4137 10845
TIME...MOT...LOC 0216Z 273DEG 30KT 4265 10845 4264 10845 4211 10843
4150 10844
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...OBSERVED
MAX WIND GUST...60 MPH
$$
Rowe
Action: Expired Issued At: 2026-06-20 21:25:08
732
WWUS55 KRIW 210224
SVSRIW
Severe Weather Statement
National Weather Service Riverton WY
824 PM MDT Sat Jun 20 2026
WYC013-037-210234-
/O.EXP.KRIW.SV.W.0022.000000T0000Z-260621T0230Z/
Fremont-Sweetwater-
824 PM MDT Sat Jun 20 2026
...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL FREMONT AND
NORTH CENTRAL SWEETWATER COUNTIES WILL EXPIRE AT 830 PM MDT...
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However, gusty
winds are still possible with these thunderstorms.
A Severe Thunderstorm Watch remains in effect until 900 PM MDT for
central and south central Wyoming.
&&
LAT...LON 4137 10869 4208 10867 4262 10867 4268 10835
4225 10834 4137 10845
TIME...MOT...LOC 0224Z 251DEG 30KT 4267 10838 4266 10838 4213 10836
4152 10837
$$
Rowe
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