Rio Grande Floodway at San Marcial, NM
USGS Site No: 08358400 • Rio Grande • Socorro County, NM
Rio Grande Floodway at San Marcial, NM on the Rio Grande is currently at 0 cfs (Low — 0th percentile for this date) . Gage height: 11.14 ft.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for June 11 at this station. Percentile rank shows what fraction of historical years had lower flow on this date.
| Percentile | Label | CFS Threshold | Today's Flow |
|---|---|---|---|
| 10th | Very Low threshold | 0 | Today: 0 cfs |
| 25th | Low threshold | 25 | |
| 50th (Median) | Normal (median) | 663 | |
| 75th | High threshold | 2,990 | |
| 95th | Very High threshold | 5,260 |
30-Day Hydrograph
Recent discharge plotted against the historical 10th–95th percentile envelope for the same calendar days. Source: USGS daily values + long-term statistics.
30-Day Flow History
| Date | Discharge (CFS) | Gage Ht (ft) |
|---|---|---|
| May 28, 2026 | 0 | — |
| May 27, 2026 | 0 | — |
| May 26, 2026 | 0 | — |
| May 25, 2026 | 0 | — |
| May 24, 2026 | 0 | — |
| May 23, 2026 | 0 | — |
| May 22, 2026 | 0 | — |
| May 21, 2026 | 0 | — |
| May 20, 2026 | 0 | — |
| May 19, 2026 | 0 | — |
| May 18, 2026 | 0 | — |
| May 17, 2026 | 0 | — |
| May 16, 2026 | 0 | — |
| May 15, 2026 | 0 | — |
| Apr 20, 2026 | 0 | — |
| Apr 19, 2026 | 0 | — |
| Apr 18, 2026 | 0 | — |
| Apr 17, 2026 | 0 | — |
| Apr 16, 2026 | 0 | — |
| Apr 15, 2026 | 0 | — |
| Apr 14, 2026 | 0 | — |
| Apr 13, 2026 | 0 | — |
| Apr 12, 2026 | 0 | — |
| Apr 11, 2026 | 0 | — |
| Apr 10, 2026 | 0 | — |
| Apr 9, 2026 | 0 | — |
| Apr 8, 2026 | 0 | — |
| Apr 7, 2026 | 0 | — |
| Apr 6, 2026 | 0 | — |
| Apr 5, 2026 | 0 | — |
Station Information
- USGS Site No
- 08358400
- State
- NM
- County
- Socorro County
- Coordinates
- 33.6791, -106.9970
- Drainage Area
- 27,700 mi²
- Datum (ft)
- 4,456.6
- HUC Code
- 13020203
Flood Stage Thresholds
- Action Stage
- 24.5 ft
- Flood Stage
- 24.5 ft
- Moderate Flood
- 26.0 ft
- Major Flood
- 27.5 ft
Currently 13.36 ft below flood stage.
Recent Extremes
- Max discharge
-
1,340 cfsDec 10, 2025
- Min discharge
-
0 cfsMay 28, 2026
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Rio Grande Conveyance Channel at San Marcial, NMLow0.6 mi · 58 cfs
-
Rio Grande Above Us Highway 380 near San Antonio, NMLow19.0 mi · 0 cfs
-
Rio Grande at Narrows IN Elephant Butte Reservoir., NMVery Low22.4 mi · 40 cfs
-
Rio Grande at Bridge Near Escondida, NMVery Low31.2 mi · 0 cfs
-
Rio Grande Below Elephant Butte Dam, NMNormal38.6 mi · 2,080 cfs