Lake Arrowhead: 73.7% full as of 2026-08-27
Historical Data
| Date | Percent Full |
Mean Water Level (ft) |
Reservoir Storage (acre-ft) |
Conservation Storage (acre-ft) |
Conservation Capacity (acre-ft) |
Surface Area (acres) |
|
|---|---|---|---|---|---|---|---|
| Most recent | 2026-08-27 | 73.7 | 921.45 | 169,697 | 169,697 | 230,359 | 12,159 |
| 1 day prior | 2026-08-26 | 73.8 | 921.48 | 170,062 | 170,062 | 230,359 | 12,175 |
| 2 days prior | 2026-08-25 | 74.0 | 921.52 | 170,549 | 170,549 | 230,359 | 12,195 |
| 1 week prior | 2026-08-20 | 74.9 | 921.68 | 172,507 | 172,507 | 230,359 | 12,278 |
| 1 month prior | 2026-07-27 | 79.1 | 922.45 | 182,114 | 182,114 | 230,359 | 12,675 |
| 3 months prior | 2026-05-27 | 84.0 | 923.33 | 193,467 | 193,467 | 230,359 | 13,129 |
| 6 months prior | 2026-02-27 | 82.2 | 923.02 | 189,422 | 189,422 | 230,359 | 12,969 |
| 1 year prior | 2025-08-27 | 92.1 | 924.71 | 212,076 | 212,076 | 230,359 | 13,841 |
*
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 | 2026-08-27 23:00 | 921.45 | 926.00 | -4.55 |
| 1 hour prior | 2026-08-27 22:00 | 921.45 | 926.00 | -4.55 |
| 2 hours prior | 2026-08-27 21:00 | 921.44 | 926.00 | -4.56 |
| 6 hours prior | 2026-08-27 17:00 | 921.44 | 926.00 | -4.56 |
| 12 hours prior | 2026-08-27 11:00 | 921.40 | 926.00 | -4.60 |
| 24 hours prior | 2026-08-26 23:00 | 921.47 | 926.00 | -4.53 |
| 48 hours prior | 2026-08-25 23:00 | 921.49 | 926.00 | -4.51 |
*
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
