Gwynns Falls at Villa Nova, MD
USGS Site No: 01589300 • Baltimore County, MD
Gwynns Falls at Villa Nova, MD is currently at 20 cfs (Normal — 54th percentile for this date) . Gage height: 0.95 ft.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for October 28 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 | 10 | |
| 25th | Low threshold | 13 | |
| 50th (Median) | Normal (median) | 18 | |
| 75th | High threshold | 30 | Today: 20 cfs |
| 95th | Very High threshold | 173 |
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.
30-Day Flow History
| Date | Discharge (CFS) | Gage Ht (ft) |
|---|---|---|
| May 28, 2026 | 33 | — |
| May 27, 2026 | 80 | — |
| May 26, 2026 | 34 | — |
| May 25, 2026 | 60 | — |
| May 24, 2026 | 458 | — |
| May 23, 2026 | 317 | — |
| May 22, 2026 | 46 | — |
| May 21, 2026 | 50 | — |
| May 20, 2026 | 42 | — |
| May 19, 2026 | 11 | — |
| May 18, 2026 | 11 | — |
| May 17, 2026 | 12 | — |
| May 16, 2026 | 12 | — |
| May 15, 2026 | 14 | — |
| Apr 21, 2026 | 14 | — |
| Apr 20, 2026 | 16 | — |
| Apr 19, 2026 | 18 | — |
| Apr 18, 2026 | 14 | — |
| Apr 17, 2026 | 15 | — |
| Apr 16, 2026 | 16 | — |
| Apr 15, 2026 | 24 | — |
| Apr 14, 2026 | 17 | — |
| Apr 13, 2026 | 17 | — |
| Apr 12, 2026 | 16 | — |
| Apr 11, 2026 | 18 | — |
| Apr 10, 2026 | 18 | — |
| Apr 9, 2026 | 19 | — |
| Apr 8, 2026 | 19 | — |
| Apr 7, 2026 | 22 | — |
| Apr 6, 2026 | 30 | — |
Station Information
- USGS Site No
- 01589300
- State
- MD
- County
- Baltimore County
- Coordinates
- 39.3459, -76.7332
- Drainage Area
- 33 mi²
- Datum (ft)
- 359.7
- HUC Code
- 020600030902
Flood Stage Thresholds
- Action Stage
- 10.0 ft
- Flood Stage
- 11.0 ft
- Moderate Flood
- 14.0 ft
- Major Flood
- 19.0 ft
Currently 10.05 ft below flood stage.
Recent Extremes
- Max discharge
-
627 cfsJun 18, 2025
- Min discharge
-
6 cfsSep 9, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Patapsco River at Hollofield, MDNormal4.0 mi · 92 cfs
-
Patapsco River Near Catonsville, MDVery High6.7 mi · 123 cfs
-
West Branch Herring Run at Idlewylde, MDNormal8.2 mi · 1 cfs
-
Patapsco River Near Elkridge, MDVery High8.2 mi · 132 cfs
-
Long Quarter Branch at Lutherville, MDVery High9.2 mi · 1 cfs