Flash Flood Watch
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
Versions:
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WGUS65 KRIW 171633
FFARIW
URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Riverton WY
1033 AM MDT Thu Sep 17 2026
WYZ002-003-007>011-181200-
/O.NEW.KRIW.FA.A.0006.260918T1800Z-260921T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Absaroka Mountains-Cody Foothills-Owl Creek and Bridger Mountains-
Bighorn Mountains West-Bighorn Mountains Southeast-Northeast
Johnson County-Southeast Johnson County-
Including the cities of Clark, Meeteetse, Cody, Buffalo, and Kaycee
1033 AM MDT Thu Sep 17 2026
...FLOOD WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH SUNDAY
AFTERNOON...
* WHAT...Flash flooding caused by moderate to heavy rainfall is
possible, especially in terrain and poor drainage areas.
* WHERE...Portions of central, north central, and northwest Wyoming,
including the following areas, in central Wyoming, Owl Creek and
Bridger Mountains. In north central Wyoming, Bighorn Mountains
Southeast, Bighorn Mountains West, Northeast Johnson County and
Southeast Johnson County. In northwest Wyoming, Absaroka Mountains
and Cody Foothills.
* WHEN...From Friday afternoon through Sunday afternoon.
* IMPACTS...Excessive rainfall may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Flooding may occur in poor drainage and urban areas.
* ADDITIONAL DETAILS...
- A slow moving weather system is forecast to trek across Wyoming
Friday through Sunday and bring abundant moisture to the region,
especially northern Wyoming, and thunderstorms. Multiple rounds
of thunderstorms are expected and will be capable of producing
moderate to heavy rainfall across the Watch Area.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
Gerhardt