Severe Flood ● Closed
Flood Watch issued September 16 at 2:47AM MDT until September 17 at 6:00AM MDT by NWS Salt Lake City UT, United States of America
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* WHAT...Flash flooding caused by excessive rainfall continues to be
possible.
* WHERE...A portion of Utah, including the following areas, Glen
Canyon Recreation Area/Lake Powell, South Central Utah, Western
Canyonlands and Zion National Park.
* WHEN...Through late 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...
- Deep moisture will remain in place across the region. Several
disturbances will fuel development of thunderstorms with rainfall
rates in excess of 0.25 to 0.50 inches per hour. In areas with
training thunderstorms, rainfall rates will exceed 0.50 inches
per hour. This will cause flash flooding in areas such as
normally dry washes, slot canyons, and slickrock areas.
- http://www.weather.gov/safety/flood
Measurements
| Coordinates | 39.9645, -100.8105 |
|---|---|
| Region | Zion National Park; South Central Utah; Western Canyonlands; Glen Canyon Recreation Area/Lake Powell |
| Location Precision | country |
| Issuing Authority | United States of America — us-noaa-nws-en |
| Cap Urgency | Future |
| Cap Certainty | Possible |
| Cap Expires | 2026-09-16T18:00:00-06:00 |
Official source
Warnings courtesy of the issuing national meteorological service, via the WMO Alert Hub.
This is an official warning issued by the authority named above. Follow its instructions and those of your local emergency services.
Severity as published by WMO Alert Hub (national weather services).
View original reportAlso reported by: WMO
This event as JSON · API and licence
Source updated 33 days ago (Sep 16, 2026 08:48 UTC) · we last heard from WMO Alert Hub (national weather services) 31 seconds ago
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About this location
The agency did not publish coordinates for this warning. The pin is the centre of the country, not the location of the event — read the area name, not the map, for where it applies.
Area as the agency stated it: Zion National Park; South Central Utah; Western Canyonlands; Glen Canyon Recreation Area/Lake Powell
Official authorities in United States
If you are there, these are the bodies whose instructions apply. This site is not an emergency service and does not issue warnings.
More for United States →What to do
Follow the instructions issued by WMO Alert Hub (national weather services) and your local emergency services. The guidance below is background.
Flood preparation, evacuation decisions, and the dangers of driving or walking through floodwater.
Open Flood Safety Guide →Earlier flood events in United States
Severe and extreme events of the same kind, before this one. Listed for scale, not because they are connected to it.
Nearby & related events
Disclaimer: figures are automatic feeds from the named agencies and may be revised. Do not use this page for life-safety decisions — follow official local emergency services.