Wappapello Lake water level
St. Francis River · Missouri · operated by USACE (Wappapello Dam)
By Michael, independent developer behind zovo.one. Readings pulled live from the same USACE feed the operator reports to.
Wappapello Lake is at 359.7 ft as of Nov 5, 2026, per USACE data: at the 359.7 ft seasonal target, right at the 359.7 ft full pool.
Wappapello Lake today: level, trend, source and access
Level against full pool
On Nov 5, 2026 the surface sat at 359.7 ft, right at the full-pool mark of 360 ft.
Level against the seasonal target
U.S. Army Corps of Engineers, St. Louis District runs Wappapello Lake on a seasonal rule curve, so the level it aims for changes through the year. For Nov 5, 2026 the seasonal rule curve is 359.7 ft, and the target is holding at its summer level. The surface, at 359.7 ft, is right on that target. So the lake is where its operator wants it for the date.
The St. Louis District holds Wappapello Lake at its 359.7 ft summer pool from April 1 to mid-December, then drops the target 5 ft to the 354.7 ft winter pool to leave more room for winter and spring floods on the St. Francis River.
Each value holds from its date until the next date in the table; the operator publishes this curve as steps, not as a gradual line. Source: USACE CWMS Data API, office MVS, location level "Wappapello Lk-St Francis.Elev.Inst.0.Seasonal Rule Curve" (2026 values; stepped, not interpolated), read on Oct 26, 2026. The operator can deviate from its curve for floods, droughts or dam work.
Trend
Between Oct 7 and Nov 5 (29 days) the level fell 0.2 ft, less than 0.1 ft a week. The high in that window was 359.9 ft on Oct 7 and the low was 359.7 ft on Nov 3. In the last 7 days it held level. The last 24 hours changed it by less than 0.1 ft.
Data source
The elevation comes from the U.S. Army Corps of Engineers CWMS Data API, Wappapello Lake pool, USACE St. Louis District, office MVS, time series Wappapello Lk-St Francis.Elev.Inst.30Minutes.0.lrgsShef-rev, last reported Nov 5, 2026. Feet from full pool, the trend and the figures above are computed from that reading and the published full-pool elevation; none is typed by hand. USACE (Wappapello Dam) runs the dam on the St. Francis River.
Recreation status
Status: at seasonal target. Within 0.0 ft of full pool, ramps built for normal pool should reach the water. Check your ramp with USACE (Wappapello Dam) all the same. Against the seasonal target the lake is at the level USACE St. Louis District plans for this date.
Check an elevation against full pool
For readers outside the U.S., the surface of Wappapello Lake is about 109.6 m above sea level, and full pool is about 109.6 m.
Check any elevation yourself. Type a level in feet above sea level (a ramp cutoff, a marina mark) to see how far it sits below full pool and in meters.