S Llano River at Flat Rock Ln at Junction water level
River gauge, S Llano River, Texas, United States
Right now
Normal for mid-October
Water level
- Flow
- 132 cfs
History
20252026
What this means
The S Llano River at Flat Rock Ln at Junction is at 2.59 ft, in the normal range for mid-October.
That puts it 0.23 ft above the median of 2.36 ft for mid-October, based on 14 years of readings. A year ago it stood at 2.06 ft (+0.53 ft).
The level has held steady over the past 24 hours. In the last month it has stayed between 2.29 ft and 7.84 ft.
Fall is often low-water season on rivers, until steadier rain returns.
Compared with 14 years of daily readings for this time of year. How to read levels
Key numbers
- Median for this date
- 2.36 ft0.23 ft above the median for this date
- Normal for this date
- 2.12 ft – 3.98 ft8 years in 10 fall in this range (14 years of records)
- Same day last year
- 2.06 ft+0.53 ft
- Lowest and highest in 30 days
- 2.29 ft – 7.84 ft
- Lowest and highest in 12 months
- 2.04 ft – 13.58 ft
Floating and fishing near S Llano River at Flat Rock Ln at Junction
Normal flows mean predictable rapids and good access at most put-ins.
Weather at the gauge
The forecast is not available right now.
Map
Nearby gauges
| Gauge | Level | Compared with normal | 24 hours | Distance |
|---|---|---|---|---|
| Llano River near JunctionRiver gauge, Llano River | 1.38 ft | Low | −0.10 ft | 3.1 mi |
| N Llano River near JunctionRiver gauge, N Llano River | 8.91 ft | Very high | −0.03 ft | 3.1 mi |
| San Saba River at MenardRiver gauge, San Saba River | 2.91 ft | Normal | −0.09 ft | 30 mi |
| Noyes Canal at Diversion pt near MenardCanal gauge, Noyes Canal | 3.69 ft | Normal | −0.03 ft | 31 mi |
| San Saba River at FM 864 near Fort McKavettRiver gauge, San Saba River | 4.64 ft | Very high | +2.43 ft | 31 mi |
| N Fk Guadalupe River near HuntRiver gauge, N Fk Guadalupe River | 1.53 ft | Normal | +0.02 ft | 37 mi |
| Guadalupe River at HuntRiver gauge, Guadalupe River | 7.71 ft | Low | ±0 | 39 mi |
| Johnson Creek near IngramRiver gauge, Johnson Creek | −0.11 ft | Very low | +0.01 ft | 39 mi |
Questions and answers
How does the S Llano River at Flat Rock Ln at Junction compare with last year?
It is 0.53 ft higher than on the same day last year, when the reading was 2.06 ft.
What is a normal level for the S Llano River at Flat Rock Ln at Junction in mid-October?
The median for mid-October is 2.36 ft. In 8 years out of 10 the reading falls between 2.12 ft and 3.98 ft, based on 14 years of records.
Is gage height the same as water depth?
No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.
What is the water level of S Llano River at Flat Rock Ln at Junction today?
On Oct 18, 2026, 09:25 PM CDT, the water level was 2.59 ft. Steady over the last 24 hours.
Is S Llano River at Flat Rock Ln at Junction rising or falling?
Steady over the last 24 hours. Steady over the last 7 days.
Is the level of S Llano River at Flat Rock Ln at Junction normal?
Normal for mid-October. Compared with 14 years of daily readings for this time of year.
How often is this data updated?
The U.S. Geological Survey publishes a new reading every 15 minutes. This page refreshes within minutes of each update.
For specialists
Station codes, datum, parameters, data quality and downloads
- Operator
- U.S. Geological Survey
- Station code
usgs:08149900(Agency page)- Coordinates
30.47901, -99.77804(WGS84)- Vertical datum
- NAVD88
- Update interval
- every 15 minutes
- Licence
- Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision
Published series
| Parameter | Last value | Time (UTC) | Quality |
|---|---|---|---|
| Water level | 2.59 ft | 2026-10-19 02:25 | Provisional |
| Flow | 132 cfs | 2026-10-19 02:25 | Provisional |
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How to cite
U.S. Geological Survey: S Llano River at Flat Rock Ln at Junction (usgs:08149900). Accessed October 19, 2026 via Nivelmap, https://nivelmap.com/en/united-states/texas/s-llano-river-at-flat-rock-ln-at-junction
How we check values
Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.
Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer