AEP’s forebay value is the upstream water-surface elevation. Smith Mountain and Leesville operate as a pumped-storage project; daily operational changes are expected. The timestamp is preserved as printed by AEP, including its time-zone label.
Smith Mountain forebay
Preserved as supplied by AEP
Compared with the dated observation seven days earlier, when available
Compared with the dated observation 30 days earlier, when available
| Date | Elevation (ft) |
|---|---|
| 2026-09-28 | 789.24 |
| 2026-09-29 | 789.07 |
This series stores the reading obtained on each refresh date. It is not an agency daily mean; intraday variation may be missed.
Retrieved 2026-09-29T01:48:27.935Z. The importer checks units, expected fields and timestamp freshness before replacing a reading. A failed source check retains its previous successful snapshot.
Source record used by this page ↗Read the operator’s explanation of Smith Mountain and Leesville levels ↗
Storage and elevation answer different questions. Use both to understand a reservoir.
Read the guide
Follow a dated TWDB reading from the headline number to its 30-day chart.
Read the guide