Severe Flood ● Active
Flood Watch issued October 20 at 11:13AM MDT until October 23 at 12:00PM MDT by NWS Grand Junction CO, United States of America
Loading live data… · Marker positions are approximate; severity is labelled in each popup. Sources: USGS, GDACS, NASA EONET, NOAA/NWS, EMSC.
* WHAT...Flooding caused by excessive rainfall is possible.
* WHERE...Portions of southwest Colorado, including the following
areas, Animas River Basin, Four Corners/Upper Dolores River, San
Juan River Basin and Southwest San Juan Mountains and Utah,
including the following areas, Arches/Grand Flat,
Canyonlands/Natural Bridges, La Sal and Abajo Mountains and
Southeast Utah.
* WHEN...From Wednesday afternoon through Friday morning.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, recently burned areas, and other low-lying and
flood-prone locations. Storm drains and ditches may become clogged
with debris.
* ADDITIONAL DETAILS...
- Strong thunderstorms capable of producing heavy rain could
develop Wednesday afternoon, followed by widespread moderate to
heavy rainfall from a surge of tropical moisture Wednesday night
through Friday morning.
- http://www.weather.gov/safety/flood
Measurements
| Coordinates | 39.9645, -100.8105 |
|---|---|
| Region | Southwest San Juan Mountains; Four Corners/Upper Dolores River; Animas River Basin; San Juan River Basin; Southeast Utah; Arches/Grand Flat; La Sal and Aba |
| Location Precision | country |
| Issuing Authority | United States of America — us-noaa-nws-en |
| Cap Urgency | Future |
| Cap Certainty | Possible |
| Cap Expires | 2026-10-21T00:00:00-06:00 |
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 reportThis event as JSON · API and licence
Source updated 1 hour ago (Oct 20, 2026 17:14 UTC) · we last heard from WMO Alert Hub (national weather services) 28 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: Southwest San Juan Mountains; Four Corners/Upper Dolores River; Animas River Basin; San Juan River Basin; Southeast Utah; Arches/Grand Flat; La Sal and Aba
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.