USGS stream gauge 08358400 · New Mexico

Rio Grande Floodway at San Marcial, NM

As of Oct 28, 2026, 5:45 AM MDT, this gauge read a gage height of 15.17 ft and a flow of 906 cfs. Over the past 7 days the water level rose 3.53 ft. Data from the USGS.

Updated Oct 28, 2026, 8:26 AM EDT (USGS Water Data snapshot)

Gage height

15.17 ft

7-day range 11.62–15.25 ft

Discharge

906cfs

7-day range 0–949 cfs

Latest reading

42 min ago

Oct 28, 2026, 5:45 AM MDT

Readings are provisional USGS data and may be revised. Rivers can rise fast after rain upstream. For flood warnings, check weather.gov and follow local authorities.

Gage height, past 7 days

11.3312.3813.4314.4915.54Oct 21Oct 22Oct 23Oct 24Oct 25Oct 26Oct 27
Gage height (ft), hourly, past 7 days. Low 11.62 · High 15.25.

Discharge, past 7 days

-75.921994757501,025Oct 21Oct 22Oct 23Oct 24Oct 25Oct 26Oct 27
Discharge (cfs), hourly, past 7 days. Low 0.00 · High 949.

Chart dates are in New Mexico local time (America/Denver).

Reading this gauge

Gage height is the water surface level above this station's own reference point, so 15.17 ft is not the river depth and cannot be compared with other gauges. Discharge, the volume of water flowing past each second, is the better number for comparing conditions over time and between rivers.

Station details
USGS site number08358400
Official nameRIO GRANDE FLOODWAY AT SAN MARCIAL, NM
StateNew Mexico
Drainage area27,700 sq mi
Gage datum elevation4,456.6 ft above sea level
Coordinates33.6791° N, 106.9970° W

Source: USGS Water Data for the Nation, site 08358400. Parameters 00065 (gage height) and 00060 (discharge).

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