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San Juan County weather alerts

1 active alert for San Juan County, Colorado right now: a Flood Watch.

25 in the last 30 days 44 in 12 months (since Aug 30) most common: Flood Watch Get alerts on your phone →

Active alerts for San Juan County

Refreshed every few minutes; times in MDT.

Severe Future

Flood Watch

Issued Wed, Oct 21, 10:28 PM MDT by NWS Grand Junction CO Until Fri, Oct 23, 12:00 PM MDT (in 2 day)

Area: Southwest San Juan Mountains; Four Corners/Upper Dolores River; Animas River Basin; San Juan River Basin; Southeast Utah; Arches/Grand Flat; La Sal and Abajo Mountains; Canyonlands/Natural Bridges

* WHAT...Flooding caused by excessive rainfall continues to be 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 Aba...

What it means: Conditions are favourable for flooding. Have a plan in case a warning is issued.

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Where

San Juan County on the map

Alert polygons are NWS's own. Forecast Bar's radar shows the same warnings over live precipitation, with future radar and lightning. See the radar.

Last 30 days

Recent alerts for San Juan County

AlertIssuedEndedIssued by
Special Weather Statement 4:14 PM 4:45 PM Grand Junction CO
Special Weather Statement 3:26 PM 4:15 PM Grand Junction CO
Flood Watch 11:31 AM Oct 23, 12:00 PM Grand Junction CO
Flood Watch Oct 20, 9:53 PM Oct 23, 12:00 PM Grand Junction CO
Flood Watch Oct 20, 11:13 AM Oct 23, 12:00 PM Grand Junction CO
Winter Weather Advisory Oct 14, 5:58 PM Oct 14, 6:00 PM Grand Junction CO
Winter Weather Advisory Oct 14, 1:08 PM Oct 14, 6:00 PM Grand Junction CO
Winter Weather Advisory Oct 13, 9:02 PM Oct 14, 6:00 PM Grand Junction CO
Winter Weather Advisory Oct 13, 1:09 PM Oct 14, 6:00 PM Grand Junction CO
Hydrologic Outlook Oct 9, 10:53 AM Oct 12, 6:00 PM Grand Junction CO
Flood Watch Sep 30, 4:46 PM Oct 1, 6:00 AM Grand Junction CO
Flood Watch Sep 29, 10:07 PM Oct 1, 6:00 AM Grand Junction CO
Flood Watch Sep 29, 11:22 AM Oct 1, 6:00 AM Grand Junction CO
Flood Watch Sep 28, 10:52 PM Sep 30, 6:00 AM Grand Junction CO
Flood Watch Sep 28, 11:03 AM Sep 30, 6:00 AM Grand Junction CO
Flood Watch Sep 27, 11:27 PM Sep 30, 6:00 AM Grand Junction CO
Flood Watch Sep 27, 9:00 PM Sep 30, 6:00 AM Grand Junction CO
Hydrologic Outlook Sep 27, 8:56 PM Sep 28, 6:00 PM Grand Junction CO
Hydrologic Outlook Sep 27, 1:01 PM Sep 28, 3:15 PM Grand Junction CO
Flood Watch Sep 27, 10:27 AM Sep 30, 6:00 AM Grand Junction CO
Flood Watch Sep 27, 12:45 AM Sep 30, 6:00 AM Grand Junction CO
Hydrologic Outlook Sep 25, 2:21 PM Sep 30, 6:00 AM Grand Junction CO
Flood Watch Sep 23, 11:21 AM Sep 25, 6:00 AM Grand Junction CO
Flood Watch Sep 22, 9:44 AM Sep 25, 6:00 AM Grand Junction CO

Pattern

What San Juan County gets alerted for

Every alert that named San Juan County in the last 12 months, by type. Records begin August 30, 2026, so this fills in over the year.

Flood Watch
23
Special Weather Statement
13
Hydrologic Outlook
4
Winter Weather Advisory
4

Plain English

What these alerts mean

A warning means the hazard is happening or about to; a watch means conditions favour it; an advisory is a lesser hazard still worth planning around.

Flood Watch

Conditions are favourable for flooding. Have a plan in case a warning is issued.

Special Weather Statement

A heads-up about conditions that do not meet warning or advisory criteria but still deserve attention, such as a strong storm, patchy fog or a brief burst of snow.

Winter Weather Advisory

Snow, sleet or freezing rain that makes travel slippery is expected. Allow extra time and drive carefully.

Hydrologic Outlook

Flooding may develop over the coming days as rain, snowmelt or river levels rise.

Nearby

Alerts near San Juan County

Neighbouring counties in Colorado

Ouray County Hinsdale County1 La Plata County1 San Miguel County1 Dolores County1 Montezuma County1 All of Colorado →

Questions

About San Juan County alerts

How do I get San Juan County weather alerts on my iPhone?

Install Forecast Bar, add San Juan County as a location, and turn on severe weather alerts. Every NWS warning, watch and advisory for San Juan County then arrives as a push notification at the moment of issue, with Critical Alerts available for the most dangerous warnings. Forecast Bar also runs on iPad, Apple Watch, Mac and Apple TV.

Where do these alerts come from?

From the National Weather Service alert feed (api.weather.gov). NWS issues alerts by county and by forecast zone; this page lists every product that names San Juan County. Forecast Bar checks the feed continuously and this page refreshes within a few minutes of a change.

What is the difference between a watch, a warning and an advisory?

A warning means the hazard is occurring, imminent or very likely: act now. A watch means conditions are favourable for it to develop: prepare and stay informed. An advisory covers a hazard that is less serious than a warning but can still cause real inconvenience or danger if you are not ready for it.

Can I get this data as JSON?

Yes. /weather-alerts/co/san-juan-county.json returns the active alerts, the last 30 days and the 12-month counts for San Juan County, refreshed every minute. Please cache responses and credit National Weather Service as the source.

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