Summary
Total streamflow across the
Atascosa River
was last observed at
1
cfs, and is expected to yield approximately
3
acre-ft of water today; about 68%
of normal.
River levels are low and may signify a drought.
Average streamflow for this time of year is
2 cfs,
with recent peaks last observed
on
2023-04-08 when daily discharge volume was observed at
2,920 cfs.
Maximum discharge along the river is currently at the
Atascosa Rv Nr Mccoy
reporting a streamflow rate of 0.53 cfs.
This is also the highest stage along the Atascosa River, with a gauge stage of
4.99 ft at this location.
This river is monitored from 2 different streamgauging stations along the Atascosa River, the highest being situated at an altitude of 265 ft, the
Atascosa Rv Nr Mccoy.
River Details
| Last Updated | 2025-07-28 |
| Discharge Volume | 3 ACRE-FT |
| Streamflow |
1.32 cfs
None cfs (None%) |
| Percent of Normal | 67.87% |
| Maximum |
2,920.2 cfs
2023-04-08 |
| Seasonal Avg | cfs |
River Streamflow Levels
| Streamgauge | Streamflow | Gauge Stage | 24hr Change (%) | % Normal | Minimum (cfs) | Maximum (cfs) | Air Temp | Elevation |
|---|---|---|---|---|---|---|---|---|
|
Atascosa Rv Nr Mccoy
USGS 08207500 |
1 cfs | 4.99 ft | 0 | |||||
|
Atascosa Rv At Whitsett
USGS 08208000 |
0 cfs | 0.51 ft | None |
Seasonal Discharge Comparison
Maximum Streamflow Discharge
Streamflow Elevation Profile
The river begins near the town of Poteet in Atascosa County and flows southeast into the Gulf of Mexico. Historically, the Atascosa River was a crucial water source for early Spanish explorers, and later for ranchers and farmers in the region. Today, it supports a variety of agricultural activities, including cattle ranching and irrigated farming. The river also has several reservoirs, including the Choke Canyon Reservoir and the Calaveras Lake, which provide drinking water and recreational opportunities for nearby communities. Despite ongoing conservation efforts, the Atascosa River faces challenges including pollution, overuse, and habitat loss.