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Severe · Flood WatchActive alert

Flood Watch issued October 30 at 8:05AM MDT until November 1 at

Affecting Castle Country; San Rafael Swell; Lower Washington County; Zion National Park; Southern Mountains; Bryce Canyon Country; South Central Utah; Capitol Reef National Park and Vicinity; Western Canyonlands; Glen Canyon Recreation Area/Lake Powell

In effect until: Oct 31, 2026, 5:15 AM

Castle Country; San Rafael Swell; Lower Washington County; Zion National Park; Southern Mountains; Bryce Canyon Country; South Central Utah; Capitol Reef National Park and Vicinity; Western Canyonlands; Glen Canyon Recreation Area/Lake Powell

Possible impact zone; conditions develop through 5:15 AM.

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.

Read the original bulletin (official text)
* WHAT...Flooding caused by excessive rainfall is possible.

* WHERE...A portion of Utah, including the following areas, Castle
Country, San Rafael Swell, Bryce Canyon Country, Capitol Reef
National Park and Vicinity, Glen Canyon Recreation Area/Lake
Powell, South Central Utah, Southern Mountains, Western
Canyonlands, Lower Washington County and Zion National Park.

* WHEN...From late Saturday night through Sunday evening.

* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, dry washes, slot canyons, and other low-lying and
flood-prone locations such as slickrock areas and recent burn
scars.

* ADDITIONAL DETAILS...
- Widespread moderate to at times heavy precipitation is expected
across much of southern, southeast and east central Utah
beginning late Saturday night, and continuing throughout the day
Sunday.

Moist antecedent conditions from recent heavy rains will result
in efficient and excessive runoff, allowing all area washes,
streams and rivers to run fast and high. Flood prone areas will
likely become inundated at times, and backcountry roads will
likely become impassable from this excessive runoff.
- http://www.weather.gov/safety/flood
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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™