Lake Arrowhead: 78.8% full as of 2026-07-29
Historical Data
| Date | Percent Full |
Mean Water Level (ft) |
Reservoir Storage (acre-ft) |
Conservation Storage (acre-ft) |
Conservation Capacity (acre-ft) |
Surface Area (acres) |
|
|---|---|---|---|---|---|---|---|
| Today | 2026-07-29 | 78.8 | 922.40 | 181,480 | 181,480 | 230,359 | 12,649 |
| Yesterday | 2026-07-28 | 78.9 | 922.42 | 181,734 | 181,734 | 230,359 | 12,659 |
| 2 days ago | 2026-07-27 | 79.1 | 922.45 | 182,114 | 182,114 | 230,359 | 12,675 |
| 1 week ago | 2026-07-22 | 79.8 | 922.59 | 183,893 | 183,893 | 230,359 | 12,747 |
| 1 month ago | 2026-06-29 | 82.8 | 923.12 | 190,722 | 190,722 | 230,359 | 13,020 |
| 3 months ago | 2026-04-29 | 85.5 | 923.59 | 196,898 | 196,898 | 230,359 | 13,263 |
| 6 months ago | 2026-01-29 | 82.7 | 923.11 | 190,591 | 190,591 | 230,359 | 13,015 |
| 1 year ago | 2025-07-29 | 94.7 | 925.14 | 218,076 | 218,076 | 230,359 | 14,062 |
*
Percent Full is based on Conservation Storage and Conservation Capacity and doesn't account for storage in flood pool.
**
Values above, including today's are averaged conditions. For near real-time instantaneous water level, see table below or the interactive map viewer.
Most Recent Instantaneous Water Level
| Date/time |
Water Level (ft) |
Conservation Pool Elevation (ft) |
Height Above Conservation Pool (ft) |
|
|---|---|---|---|---|
| Most recent | 2026-07-29 15:00 | 922.40 | 926.00 | -3.60 |
| 1 hour prior | 2026-07-29 14:00 | 922.39 | 926.00 | -3.61 |
| 2 hours prior | 2026-07-29 13:00 | 922.39 | 926.00 | -3.61 |
| 6 hours prior | 2026-07-29 09:00 | 922.42 | 926.00 | -3.58 |
| 12 hours prior | 2026-07-29 03:00 | 922.38 | 926.00 | -3.62 |
| 24 hours prior | 2026-07-28 15:00 | 922.42 | 926.00 | -3.58 |
| 48 hours prior | 2026-07-27 15:00 | 922.45 | 926.00 | -3.55 |
*
Data is provisional and subject to revision.
Additional Information
| Impoundment date | 1966-01-01 |
| Vertical datum | NGVD29 |
| Dead pool elevation | 874.00 ft above NGVD29 |
| Service spillway crest elevation | 926.00 ft above NGVD29 |
| Maximum design elevation | 939.55 ft above NGVD29 |
| Top of dam elevation | 944.00 ft above NGVD29 |
| Conservation pool elevation | 926.00 ft above NGVD29 |
| Data download (CSV) | period of record, last one year, last 30 days |
Elevation-Area-Capacity Curves
2001-06-01 (source: TWDB)
: GIS Data
2013-09-01 (source: TWDB)
: GIS Data
|
|
| Data Source | USGS:07314800 |
| USGS Monitoring Location | USGS:07314800 |
Lake Location
