Lake Arrowhead: 77.3% full as of 2026-08-06
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 | 2026-08-06 | 77.3 | 922.13 | 178,084 | 178,084 | 230,359 | 12,510 |
| 1 day prior | 2026-08-05 | 77.5 | 922.16 | 178,460 | 178,460 | 230,359 | 12,525 |
| 2 days prior | 2026-08-04 | 77.7 | 922.20 | 178,961 | 178,961 | 230,359 | 12,546 |
| 1 week prior | 2026-07-30 | 78.6 | 922.36 | 180,975 | 180,975 | 230,359 | 12,628 |
| 1 month prior | 2026-07-06 | 81.4 | 922.87 | 187,483 | 187,483 | 230,359 | 12,892 |
| 3 months prior | 2026-05-06 | 84.8 | 923.47 | 195,311 | 195,311 | 230,359 | 13,201 |
| 6 months prior | 2026-02-06 | 82.4 | 923.05 | 189,812 | 189,812 | 230,359 | 12,984 |
| 1 year prior | 2025-08-06 | 94.1 | 925.04 | 216,672 | 216,672 | 230,359 | 14,011 |
*
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 | 2026-08-06 23:00 | 922.12 | 926.00 | -3.88 |
| 1 hour prior | 2026-08-06 22:00 | 922.11 | 926.00 | -3.89 |
| 2 hours prior | 2026-08-06 21:00 | 922.11 | 926.00 | -3.89 |
| 6 hours prior | 2026-08-06 17:00 | 922.12 | 926.00 | -3.88 |
| 12 hours prior | 2026-08-06 11:00 | 922.15 | 926.00 | -3.85 |
| 24 hours prior | 2026-08-05 23:00 | 922.14 | 926.00 | -3.86 |
| 48 hours prior | 2026-08-04 23:00 | 922.17 | 926.00 | -3.83 |
*
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
