Flood Watch

Locations Affected

Fairview, WY ∙ West Thumb, WY ∙ National Elk Refuge, WY ∙ Wilson, WY ∙ Yellowstone Lake, WY ∙ South Pass, WY ∙ Jackson, WY ∙ Overlook Mountain, WY ∙ Etna, WY ∙ Grovont, WY

Full Alert Message

Flood Watch National Weather Service Riverton WY 107 PM MDT Sat Aug 29 2026 ...FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY MORNING... * WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of central, northwest, and west central Wyoming, including the following areas, in central Wyoming, Wind River Mountains West. In northwest Wyoming, Absaroka Mountains, Jackson Hole, Teton and Gros Ventre Mountains and Yellowstone National Park. In west central Wyoming, Salt River and Wyoming Ranges and Star Valley. * WHEN...Through Sunday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Increased moisture from the Pacific will move across northwest Wyoming through the weekend, bringing an extended chance for showers and thunderstorms. The increased moisture will have the potential to produce locally heavy rainfall, providing excessive runoff in flood-prone and low-lying areas. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.

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