Current level
898.95ft
At full pool
Normal
Vs full pool
Water Level History
- Current
- 898.95 ft
- 24h
- -0.02 ft
- 7d
- -0.04 ft
- 30d
- -0.17 ft
Elevation (ft) NGVD29 · MSL
Reference line is designed full pool.
Follow for weather alerts and lake notices
Get weather alerts and lake notices for Tappan Lake. Water-level change notifications are not included.
Follow Tappan Lake — FreeLake Level Context
Level is near the full pool
Tappan Lake is currently 898.95 ft, near its full pool. The lake has fallen 0.04 ft over the past 7 days and 0.17 ft over the past 30 days.
Tappan Lake Level Details
Reference elevations, recent daily readings, data sources, and answers to common questions.
Conditions & Reference
Level status
0.05 ft below full pool
- Current level
- 898.95 ft
- Full pool
- 899 ft
- DatumElevation referenced to National Geodetic Vertical Datum of 1929.
- NGVD29
- Elevation reference
- MSL
- Source
- USGS
Reference levels
- Full pool899 ft
Surrounding county drought
No Drought
Dominant category Abnormally Dry (D0); not counted as official drought.
Severity
NoneExtreme
- Trend
- Stable
Daily level summary
| Date | Level | Change |
|---|---|---|
| Nov 9, 2026 | 898.96 | -0.02 |
| Nov 8, 2026 | 898.98 | -0.01 |
| Nov 7, 2026 | 898.99 | -0.01 |
| Nov 6, 2026 | 899 | 0 |
| Nov 5, 2026 | 899 | +0.02 |
| Nov 4, 2026 | 898.98 | -0.01 |
| Nov 3, 2026 | 898.99 | -0.01 |
| Nov 2, 2026 | 899 | -0.01 |
| Nov 1, 2026 | 899.01 | -0.02 |
| Oct 31, 2026 | 899.03 | -0.01 |
| Oct 30, 2026 | 899.04 | -0.02 |
| Oct 29, 2026 | 899.06 | 0 |
| Oct 28, 2026 | 899.06 | -0.01 |
| Oct 27, 2026 | 899.07 | -0.01 |