Lake Arrowhead: 72.6% full as of 2026-09-05
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 | 2026-09-05 | 72.6 | 921.24 | 167,155 | 167,155 | 230,359 | 12,051 |
| Yesterday | 2026-09-04 | 72.7 | 921.27 | 167,517 | 167,517 | 230,359 | 12,066 |
| 2 days ago | 2026-09-03 | 72.8 | 921.28 | 167,637 | 167,637 | 230,359 | 12,071 |
| 1 week ago | 2026-08-29 | 73.6 | 921.43 | 169,454 | 169,454 | 230,359 | 12,149 |
| 1 month ago | 2026-08-05 | 77.5 | 922.16 | 178,460 | 178,460 | 230,359 | 12,525 |
| 3 months ago | 2026-06-05 | 83.2 | 923.20 | 191,765 | 191,765 | 230,359 | 13,062 |
| 6 months ago | 2026-03-05 | 82.1 | 923.00 | 189,162 | 189,162 | 230,359 | 12,959 |
| 1 year ago | 2025-09-05 | 91.9 | 924.68 | 211,661 | 211,661 | 230,359 | 13,825 |
*
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 | 2026-09-05 04:00 | 921.24 | 926.00 | -4.76 |
| 1 hour prior | 2026-09-05 03:00 | 921.24 | 926.00 | -4.76 |
| 2 hours prior | 2026-09-05 02:00 | 921.23 | 926.00 | -4.77 |
| 6 hours prior | 2026-09-04 22:00 | 921.25 | 926.00 | -4.75 |
| 12 hours prior | 2026-09-04 16:00 | 921.27 | 926.00 | -4.73 |
| 24 hours prior | 2026-09-04 04:00 | 921.28 | 926.00 | -4.72 |
| 48 hours prior | 2026-09-03 04:00 | 921.30 | 926.00 | -4.70 |
*
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
