Major Flood
12 ft
Current Water Level
Gage Height
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Streamflow
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Last Reading
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FLOOD STAGES
Know the flood categories.
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
Moderate Flood
10 ft
Minor Flood
8.5 ft
Action Stage
7 ft
What Floods at Each Level
10 ft
The current extent of flooding along the San Juan River in New Mexico has not been observed since before the completion of Navajo Dam in 1962. In the Farmington vicinity, backwater flooding on the Animas River at and above the confluence with the San Juan River is the major concern. See flood bulletins pertaining to the Animas River. Downriver through Shiprock, mostly low lying and agricultural areas are subject to inundation.
8.5 ft
Overbank flow is occurring from just below the confluence of the Animas and San Juan Rivers at Farmington, and continuing downriver through Shiprock. At this water level, the fast flow can result in river bank erosion but otherwise minor flood damage.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Sep 5, 1909 | 12.3 ft | — |
| Sep 27, 1935 | 11.8 ft | 32,800 cfs |
| May 12, 1941 | 11.7 ft | 32,200 cfs |
About This Gauge
USGS Site
NWS LID
FRMN5
River
San Juan River
County
San Juan, NM
Coordinates
36.7231°N, 108.2256°W
Get Flood Alerts for San Juan River
StormCast monitors this gauge and sends a push notification to your phone when the water level crosses into a new flood category — even at 3 AM.
Frequently Asked Questions
What is the current water level of San Juan River at Farmington?
The San Juan River at Farmington gauge is maintained by USGS (site 09365000) and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.
What is flood stage for San Juan River at Farmington?
The NWS-defined flood stage for San Juan River at Farmington is 8.5 feet. Action stage begins at 7 feet. Moderate flooding starts at 10 feet, and major flooding at 12 feet.
How do I get alerts when San Juan River rises?
Download StormCast free on Google Play, go to River Gauges, and add San Juan River at Farmington to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category.
Where is the San Juan River at Farmington gauge located?
The gauge is located in San Juan County, New Mexico at coordinates 36.7231°N, 108.2256°W. USGS site number: 09365000. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on San Juan River
More Resources
Source & Notes
Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey
- River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 10 days into the future from the forecast issuance time.