Rio Grande Floodway at San Marcial, NM

Socorro County, New Mexico · USGS gauge 08358400 · NWS SMFN5 · Rio Grande Floodway flood status · New Mexico river levels

Nearby: river levels near San Marcial

Is Rio Grande Floodway at San Marcial, NM flooding right now?

Rio Grande Floodway at San Marcial, NM measured 15.04 ft on 2026-10-27 18:45:00 UTC. That observation was 9.5 ft below its 24.5 ft flood stage. This is the latest available reading, not a guarantee of current conditions.

Gauge height
15.04 ft
as of 66 min ago
Streamflow
839 cfs
data refreshed 4 min ago

Minor flooding here begins at 24.5 ft, with major flooding at 27.5 ft. The highest crest on record was 22.3 ft on Sat, Aug 12, 2006.

Streamflow outlook

NOAA National Water Model forecast, issued 14 hours ago. The NWM models discharge for every river reach in the country, including the many gauges the National Weather Service does not forecast individually. It is a model, not an official NWS river forecast, and it predicts flow rather than water level.

Flood stages at this gauge

CategoryStageCurrent distance
Action24.5 ft9.5 ft below
Minor flood24.5 ft9.5 ft below
Moderate flood26 ft11.0 ft below
Major flood27.5 ft12.5 ft below

New to these numbers? What does flood stage mean? · How to read a river gauge · Why is the river rising?

Highest crests on record

StageDate
22.3 ft2006-08-12
21.7 ft1994-05-28
21.43 ft1980-09-16
21.4 ft2005-06-07
21.26 ft2008-08-28

Nearby gauges

GaugeDistanceCounty
Rio Grande Conveyance Channel at San Marcial, NM0.6 miSocorro County
Rio Grande Conveyance Channel near San Antonio, NM15.6 miSocorro County
Rio Grande above US Hwy 380 near San Antonio, NM19.0 miSocorro County
Rio Grande at Narrows In Elephant Butte Reservoir., NM22.3 miSierra County
Rio Grande at Bridge near Escondida, NM31.1 miSocorro County
Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.

Sources: USGS monitoring location · NWS gauge & forecast