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Severe Thunderstorm Watch 0356
Issued by the Riverton Forecast Office

Action Issued Starts Expiration
New 2026-06-20 14:28:55 2026-06-20 14:28:00 2026-06-20 22:00:00
Continued 2026-06-20 18:37:03 2026-06-20 22:00:00
Cancelled 2026-06-20 18:37:03 2026-06-20 22:00:00
Cancelled 2026-06-20 21:42:38 2026-06-20 22:00:00


Action: New
Issued At: 2026-06-20 14:28:55

028 
WWUS65 KRIW 201928
WCNRIW

WATCH COUNTY NOTIFICATION FOR WATCH 356
NATIONAL WEATHER SERVICE RIVERTON WY
128 PM MDT SAT JUN 20 2026

WYC013-017-019-025-037-043-210300-
/O.NEW.KRIW.SV.A.0356.260620T1928Z-260621T0300Z/

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH
356 IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR THE FOLLOWING AREAS

IN WYOMING THIS WATCH INCLUDES 6 COUNTIES

IN CENTRAL WYOMING

FREMONT               HOT SPRINGS           NATRONA              

IN NORTH CENTRAL WYOMING

JOHNSON               WASHAKIE              

IN SOUTH CENTRAL WYOMING

SWEETWATER            

THIS INCLUDES THE CITIES OF BUFFALO, CASPER, DUBOIS, GREEN RIVER,
KAYCEE, LANDER, RIVERTON, ROCK SPRINGS, THERMOPOLIS, AND WORLAND.

$$


Action: Continued
Issued At: 2026-06-20 18:37:03

170 
WWUS65 KRIW 202336
WCNRIW

WATCH COUNTY NOTIFICATION FOR WATCH 356
NATIONAL WEATHER SERVICE RIVERTON WY
536 PM MDT SAT JUN 20 2026

WYC017-043-210045-
/O.CAN.KRIW.SV.A.0356.000000T0000Z-260621T0300Z/

THE NATIONAL WEATHER SERVICE HAS CANCELLED SEVERE THUNDERSTORM
WATCH 356 FOR THE FOLLOWING AREAS

IN WYOMING THIS CANCELS 2 COUNTIES

IN CENTRAL WYOMING

HOT SPRINGS           

IN NORTH CENTRAL WYOMING

WASHAKIE              

THIS INCLUDES THE CITIES OF THERMOPOLIS AND WORLAND.

$$

WYC013-019-025-037-210300-
/O.CON.KRIW.SV.A.0356.000000T0000Z-260621T0300Z/

SEVERE THUNDERSTORM WATCH 356 REMAINS VALID UNTIL 9 PM MDT THIS
EVENING FOR THE FOLLOWING AREAS

IN WYOMING THIS WATCH INCLUDES 4 COUNTIES

IN CENTRAL WYOMING

FREMONT               NATRONA               

IN NORTH CENTRAL WYOMING

JOHNSON               

IN SOUTH CENTRAL WYOMING

SWEETWATER            

THIS INCLUDES THE CITIES OF BUFFALO, CASPER, DUBOIS, GREEN RIVER,
KAYCEE, LANDER, RIVERTON, AND ROCK SPRINGS.

$$


Action: Cancelled
Issued At: 2026-06-20 18:37:03

170 
WWUS65 KRIW 202336
WCNRIW

WATCH COUNTY NOTIFICATION FOR WATCH 356
NATIONAL WEATHER SERVICE RIVERTON WY
536 PM MDT SAT JUN 20 2026

WYC017-043-210045-
/O.CAN.KRIW.SV.A.0356.000000T0000Z-260621T0300Z/

THE NATIONAL WEATHER SERVICE HAS CANCELLED SEVERE THUNDERSTORM
WATCH 356 FOR THE FOLLOWING AREAS

IN WYOMING THIS CANCELS 2 COUNTIES

IN CENTRAL WYOMING

HOT SPRINGS           

IN NORTH CENTRAL WYOMING

WASHAKIE              

THIS INCLUDES THE CITIES OF THERMOPOLIS AND WORLAND.

$$

WYC013-019-025-037-210300-
/O.CON.KRIW.SV.A.0356.000000T0000Z-260621T0300Z/

SEVERE THUNDERSTORM WATCH 356 REMAINS VALID UNTIL 9 PM MDT THIS
EVENING FOR THE FOLLOWING AREAS

IN WYOMING THIS WATCH INCLUDES 4 COUNTIES

IN CENTRAL WYOMING

FREMONT               NATRONA               

IN NORTH CENTRAL WYOMING

JOHNSON               

IN SOUTH CENTRAL WYOMING

SWEETWATER            

THIS INCLUDES THE CITIES OF BUFFALO, CASPER, DUBOIS, GREEN RIVER,
KAYCEE, LANDER, RIVERTON, AND ROCK SPRINGS.

$$


Action: Cancelled
Issued At: 2026-06-20 21:42:38

102 
WWUS65 KRIW 210242
WCNRIW

WATCH COUNTY NOTIFICATION FOR WATCH 356
NATIONAL WEATHER SERVICE RIVERTON WY
842 PM MDT SAT JUN 20 2026

WYC013-019-025-037-210345-
/O.CAN.KRIW.SV.A.0356.000000T0000Z-260621T0300Z/

THE NATIONAL WEATHER SERVICE HAS CANCELLED SEVERE THUNDERSTORM
WATCH 356 FOR THE FOLLOWING AREAS

IN WYOMING THIS CANCELS 4 COUNTIES

IN CENTRAL WYOMING

FREMONT               NATRONA               

IN NORTH CENTRAL WYOMING

JOHNSON               

IN SOUTH CENTRAL WYOMING

SWEETWATER            

THIS INCLUDES THE CITIES OF BUFFALO, CASPER, DUBOIS, GREEN RIVER,
KAYCEE, LANDER, RIVERTON, AND ROCK SPRINGS.

$$



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