Llano Rv Nr Mason, TX
Mason County, Texas · USGS 08150700
Latest observation
What this gauge represents: This gauge measures conditions on Llano Rv at its USGS monitoring location in Mason County; conditions elsewhere on the waterway may differ.
Observed · 11 minutes ago
Observed
How to read these numbers
How much water moves past the gauge each second. Higher numbers mean more water is moving downstream.
The water-surface height at this gauge. It is useful for tracking rises, falls and flood thresholds, but it is not the river's total depth.
How much the latest reading has risen or fallen compared with roughly 24 hours earlier.
The typical streamflow for this date based on USGS historical statistics. A multiple such as 3× means current flow is about three times the historical median.
Get Water Data's plain-language summary of current flow, historical context and recent direction.
Official action and flood thresholds where available. These levels are specific to each gauge location.
Gauge height and flood stage are station-specific. A 12-foot reading at one gauge should not be directly compared with 12 feet at another.
Above historical median · Steady
Streamflow is currently 149 ft³/s, 16% above the historical median for this date. Flow has been relatively steady over the past 24 hours.
USGS-reported historical daily median for 09-27: 129 ft³/s · Based on USGS day-of-year statistics
How trends & context are calculated →Streamflow trend
Daily mean streamflow · Aug 28–Sep 25 · dates shown in UTC · 29 observations
Look at the data (29 rows)
| Date (UTC) | Daily mean |
|---|---|
| Aug 28, 2026, 12:00 AM | 229 CFS |
| Aug 29, 2026, 12:00 AM | 227 CFS |
| Aug 30, 2026, 12:00 AM | 224 CFS |
| Aug 31, 2026, 12:00 AM | 219 CFS |
| Sep 1, 2026, 12:00 AM | 214 CFS |
| Sep 2, 2026, 12:00 AM | 209 CFS |
| Sep 3, 2026, 12:00 AM | 206 CFS |
| Sep 4, 2026, 12:00 AM | 202 CFS |
| Sep 5, 2026, 12:00 AM | 200 CFS |
| Sep 6, 2026, 12:00 AM | 198 CFS |
| Sep 7, 2026, 12:00 AM | 198 CFS |
| Sep 8, 2026, 12:00 AM | 199 CFS |
| Sep 9, 2026, 12:00 AM | 194 CFS |
| Sep 10, 2026, 12:00 AM | 190 CFS |
| Sep 11, 2026, 12:00 AM | 188 CFS |
| Sep 12, 2026, 12:00 AM | 183 CFS |
| Sep 13, 2026, 12:00 AM | 175 CFS |
| Sep 14, 2026, 12:00 AM | 168 CFS |
| Sep 15, 2026, 12:00 AM | 161 CFS |
| Sep 16, 2026, 12:00 AM | 158 CFS |
| Sep 17, 2026, 12:00 AM | 155 CFS |
| Sep 18, 2026, 12:00 AM | 153 CFS |
| Sep 19, 2026, 12:00 AM | 152 CFS |
| Sep 20, 2026, 12:00 AM | 161 CFS |
| Sep 21, 2026, 12:00 AM | 224 CFS |
| Sep 22, 2026, 12:00 AM | 177 CFS |
| Sep 23, 2026, 12:00 AM | 164 CFS |
| Sep 24, 2026, 12:00 AM | 159 CFS |
| Sep 25, 2026, 12:00 AM | 154 CFS |
About this gauge
Official USGS station
Get Water Data organizes provisional public monitoring data from the U.S. Geological Survey.
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