Severe · Flood WatchActive alert

Flood Watch issued September 21 at 10:35PM MDT until September 25 at

Affecting Southwest San Juan Mountains; San Juan River Basin

In effect until: Sep 22, 2026, 11:00 PM

Southwest San Juan Mountains; San Juan River Basin

Possible impact zone; conditions develop through 11:00 PM.

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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Read the original bulletin (official text)

* WHAT...Flooding caused by excessive rainfall is possible.

* WHERE...A portion of southwest Colorado, including the following
areas, San Juan River Basin and Southwest San Juan Mountains.

* WHEN...From Wednesday afternoon through Thursday evening.

* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.

* ADDITIONAL DETAILS...
- The ground remains saturated from recent heavy rainfall over the
past week. After a brief break, deep moisture is expected to
return to southwest Colorado Tuesday with a few inches of
rainfall possible during the Wednesday through Thursday
timeframe. In addition, multiple rounds of showers and
thunderstorms are expected Wednesday through Thursday evening
producing periods of heavy rainfall and potential flash flooding.
- http://www.weather.gov/safety/flood

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

Flood Watch issued September 21 at 10:35PM MDT until September 25 at

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