San Antonio Rv near Elmendorf, TX

USGS Site No: 08181800 • San Antonio River • Bexar County, TX

San Antonio Rv near Elmendorf, TX on the San Antonio River is currently at 361 cfs (Normal — 54th percentile for this date) . Gage height: 11.39 ft.

Reading from

↑ Upstream on San Antonio River
San Antonio Rv at Loop 410, San Antonio, TX
Downstream on San Antonio River ↓
San Antonio Rv near Floresville, TX
361
CFS Discharge
11.39
Gage Height (ft)
Normal
Flow Condition
Normal
Flood Status

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 105
25th Low threshold 163
50th (Median) Normal (median) 302
75th High threshold 664 Today: 361 cfs
95th Very High threshold 5,390

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.

5.3k 2.6k 0 cfs Apr 5 May 28
10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date Discharge (CFS) Gage Ht (ft)
May 28, 2026 1,100 15.33
May 27, 2026 3,940 27.02
May 26, 2026 346 11.28
May 25, 2026 513 12.22
May 24, 2026 1,900 19.43
May 23, 2026 2,160 20.72
May 22, 2026 2,630 22.82
May 21, 2026 1,210 15.84
May 20, 2026 1,740 18.66
May 19, 2026 158 9.82
May 18, 2026 205 10.28
May 17, 2026 161 9.86
May 16, 2026 165 9.90
May 15, 2026 178 10.03
Apr 20, 2026 347 11.22
Apr 19, 2026 251 10.58
Apr 18, 2026 167 9.93
Apr 17, 2026 172 9.98
Apr 16, 2026 191 10.15
Apr 15, 2026 196 10.19
Apr 14, 2026 202 10.25
Apr 13, 2026 238 10.54
Apr 12, 2026 158 9.83
Apr 11, 2026 145 9.70
Apr 10, 2026 148 9.74
Apr 9, 2026 151 9.77
Apr 8, 2026 161 9.87
Apr 7, 2026 159 9.85
Apr 6, 2026 170 9.96
Apr 5, 2026 304 10.89

Station Information

USGS Site No
08181800
State
TX
County
Bexar County
Coordinates
29.2222, -98.3558
Drainage Area
1,743 mi²
Datum (ft)
380.0
HUC Code
12100301
View on USGS NWIS →

Flood Stage Thresholds

Action Stage
33.0 ft
Flood Stage
35.0 ft
Moderate Flood
39.0 ft
Major Flood
48.0 ft

Currently 23.61 ft below flood stage.

Recent Extremes

Max discharge
7,580 cfs
Jun 13, 2025
Min discharge
79 cfs
Jun 10, 2025
Days at flood stage
1

Computed from the local daily-values archive.

Nearby Gauges

Related