West. Branch Rocky River B Mth Of South Prong River near Cornelius, NC

USGS Site No: 0212393300West. Branch Rocky River B Mth • Mecklenburg County, NC

West. Branch Rocky River B Mth Of South Prong River near Cornelius, NC on the West. Branch Rocky River B Mth is currently at 3 cfs (Normal — 26th percentile for this date) . Gage height: 2.94 ft.

Reading from

3
CFS Discharge
2.94
Gage Height (ft)
Normal
Flow Condition
Normal
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 3
25th Low threshold 3
50th (Median) Normal (median) 7 Today: 3 cfs
75th High threshold 12
95th Very High threshold 20

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.

580 290 0 cfs Apr 6 May 28
10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date Discharge (CFS) Gage Ht (ft)
May 28, 2026 4 2.99
May 27, 2026 7 3.10
May 26, 2026 10 3.18
May 25, 2026 80 4.01
May 24, 2026 5 3.00
May 23, 2026 8 3.11
May 22, 2026 4 2.98
May 21, 2026 3 2.93
May 20, 2026 3 2.93
May 19, 2026 3 2.93
May 18, 2026 3 2.93
May 17, 2026 3 2.93
May 16, 2026 3 2.94
May 15, 2026 3 2.94
Apr 21, 2026 5 3.00
Apr 20, 2026 5 3.01
Apr 19, 2026 5 3.01
Apr 18, 2026 5 3.02
Apr 17, 2026 5 3.02
Apr 16, 2026 5 3.03
Apr 15, 2026 5 3.03
Apr 14, 2026 5 3.04
Apr 13, 2026 5 3.04
Apr 12, 2026 5 3.04
Apr 11, 2026 6 3.07
Apr 10, 2026 6 3.06
Apr 9, 2026 6 3.06
Apr 8, 2026 6 3.07
Apr 7, 2026 7 3.09
Apr 6, 2026 11 3.21

Station Information

USGS Site No
0212393300
State
NC
Coordinates
35.4678, -80.7903
Drainage Area
21 mi²
Datum (ft)
635.9
HUC Code
03040105
View on USGS NWIS →

Flood Stage Thresholds

Action Stage
12.0 ft
Flood Stage
15.0 ft
Moderate Flood
18.0 ft
Major Flood
21.0 ft

Currently 12.06 ft below flood stage.

Recent Extremes

Max discharge
178 cfs
Jun 26, 2025
Min discharge
3 cfs
Oct 24, 2025
Days at flood stage
0

Computed from the local daily-values archive.