South Llano Rv at Flat Rock Ln at Junction, TX

USGS Site No: 08149900South Llano River • Kimble County, TX

South Llano Rv at Flat Rock Ln at Junction, TX on the South Llano River is currently at 98 cfs (Normal — 65th percentile for this date) . Gage height: 2.37 ft.

Reading from

98
CFS Discharge
2.37
Gage Height (ft)
Normal
Flow Condition
N/A
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 36
25th Low threshold 42
50th (Median) Normal (median) 76
75th High threshold 113 Today: 98 cfs
95th Very High threshold 0

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.

123 62 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 104 2.40
May 27, 2026 108 2.42
May 26, 2026 112 2.44
May 25, 2026 114 2.45
May 24, 2026 95 2.36
May 23, 2026 92 2.34
May 22, 2026 96 2.36
May 21, 2026 106 2.41
May 20, 2026 54 2.16
May 19, 2026 39 2.09
May 18, 2026 39 2.09
May 17, 2026 39 2.09
May 16, 2026 39 2.08
May 15, 2026 39 2.09
Apr 20, 2026 54 2.16
Apr 19, 2026 41 2.08
Apr 18, 2026 42 2.09
Apr 17, 2026 41 2.08
Apr 16, 2026 42 2.09
Apr 15, 2026 43 2.09
Apr 14, 2026 45 2.11
Apr 13, 2026 56 2.17
Apr 12, 2026 67 2.22
Apr 11, 2026 38 2.06
Apr 10, 2026 37 2.05
Apr 9, 2026 37 2.05
Apr 8, 2026 37 2.05
Apr 7, 2026 37 2.05
Apr 6, 2026 37 2.05
Apr 5, 2026 38 2.06

Station Information

USGS Site No
08149900
State
TX
County
Kimble County
Coordinates
30.4790, -99.7780
Drainage Area
879 mi²
Datum (ft)
1,677.4
HUC Code
12090204
View on USGS NWIS →

Recent Extremes

Max discharge
620 cfs
Jul 16, 2025
Min discharge
30 cfs
Jun 30, 2025

Computed from the local daily-values archive.

Nearby Gauges