Lake Arrowhead: 69.7% full as of 2026-10-09
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 | 2026-10-09 | 69.7 | 920.68 | 160,487 | 160,487 | 230,359 | 11,762 |
| Yesterday | 2026-10-08 | 69.7 | 920.69 | 160,605 | 160,605 | 230,359 | 11,767 |
| 2 days ago | 2026-10-07 | 69.8 | 920.71 | 160,840 | 160,840 | 230,359 | 11,777 |
| 1 week ago | 2026-10-02 | 69.7 | 920.68 | 160,487 | 160,487 | 230,359 | 11,762 |
| 1 month ago | 2026-09-09 | 72.0 | 921.13 | 165,832 | 165,832 | 230,359 | 11,994 |
| 3 months ago | 2026-07-09 | 81.1 | 922.82 | 186,839 | 186,839 | 230,359 | 12,866 |
| 6 months ago | 2026-04-09 | 82.4 | 923.05 | 189,812 | 189,812 | 230,359 | 12,984 |
| 1 year ago | 2025-10-09 | 88.7 | 924.14 | 204,271 | 204,271 | 230,359 | 13,547 |
*
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 | 2026-10-09 06:00 | 920.69 | 926.00 | -5.31 |
| 1 hour prior | 2026-10-09 05:00 | 920.68 | 926.00 | -5.32 |
| 2 hours prior | 2026-10-09 04:00 | 920.67 | 926.00 | -5.33 |
| 6 hours prior | 2026-10-09 00:00 | 920.69 | 926.00 | -5.31 |
| 12 hours prior | 2026-10-08 18:00 | 920.68 | 926.00 | -5.32 |
| 24 hours prior | 2026-10-08 06:00 | 920.69 | 926.00 | -5.31 |
| 48 hours prior | 2026-10-07 06:00 | 920.71 | 926.00 | -5.29 |
*
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
