MEDIAN FLOW RATE · 30 DAY
0cfs 3.6% vs avg
Optimal band: 4–6 cfs
PERIOD HIGH
323cfs
PERIOD LOW
1cfs
RUNNABLE
18%
last 30 day in band
Precipitation History
Your History · Onion Ck at Twin Creeks Rd nr Manchaca, TX
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Weather Conditions
WEATHER CONDITIONS
TODAY
97°
77°
SUN
98°
76°
MON
101°
74°
TUE
95°
75°
WED
101°
74°
THU
102°
73°
FRI
103°
72°
FISH INDEX
Temperature
Warm
Wind
Light
Pressure
Rising — Slow
Moon Phase
Average
DAYLIGHT
SUNRISE
06:34 AM
SUNSET
08:36 PM
14H 2M OF DAYLIGHT12H 7M REMAINING
MOON PHASE
Waning Gibbous
80% illuminated
Station Location
30.1263, -97.8211Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-04 08:29 UTC
Site #08158827·USGS
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