Severe · Flood WatchActive alert

Flood Watch issued September 17 at 12:14PM MDT until September 18 at

Affecting Wasatch Plateau/Book Cliffs; Central Mountains; Castle Country; San Rafael Swell

In effect until: Sep 18, 2026, 6:00 AM

Wasatch Plateau/Book Cliffs; Central Mountains; Castle Country; San Rafael Swell

Possible impact zone; conditions develop through 6:00 AM.

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

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Read the original bulletin (official text)

* WHAT...Flash flooding caused by excessive rainfall continues to be
possible.

* WHERE...A portion of Utah, including the following areas, Castle
Country, Central Mountains, San Rafael Swell and Wasatch
Plateau/Book Cliffs.

* WHEN...Until midnight MDT tonight.

* 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...
- Showers and thunderstorms are expected to re-develop this
afternoon across the area and continue through the evening hours.
Rainfall rates between 0.25 to 1 inch per hour with locally
higher rates under the heaviest storms are expected. This will
cause flash flooding in areas such as normally dry washes, slot
canyon, and slickrock areas.
- http://www.weather.gov/safety/flood

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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™

Flood Watch issued September 17 at 12:14PM MDT until September 18 at

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