In a rare late‑season rebound, Lake Powell has surged more than 21 feet since hitting a historic low in mid‑September.
Key points
- Lake Powell has risen more than 21 feet since its September low, a rare late‑season recovery.
- The rise is driven almost entirely by unprecedented October rain and runoff, not by upstream releases.
- Even after the surge, the lake is only about 27 % full and remains well below its historic full‑pool elevation.
- River flows are currently about 190 % of average, which may support additional gains, but long‑term water scarcity persists.
Lake Powell, the massive reservoir behind Glen Canyon Dam, has risen 21.5 feet since it reached its lowest level in September, the deepest dip recorded since the dam’s completion in 1967, according to Utah State professor Jack Schmidt.
The jump comes as water is entering the lake at roughly six times the rate it is leaving, a net inflow of about 34,100 cubic feet per second – roughly 2.2 billion gallons per day – with a full foot added in the most recent 24‑hour period.
Record inflow pushes lake up 21 feet
Officials attribute the surge primarily to historic October rainfall and flooding across southeastern Utah and the San Juan River watershed, which has driven massive runoff downstream. Releases from Flaming Gorge Reservoir account for only about 7 % of the recent rise, according to earlier estimates.
Despite the rapid gain, the reservoir sits at just over 3,538 feet elevation, equating to roughly 27 % of its total capacity. That leaves it about 162 feet below the full‑pool level and still about 7 feet lower than the same date last year.
Rainfall, not releases, fuels the surge
River flows in the Colorado Basin are running at roughly 190 % of average, a factor that could sustain further increases this month, but experts caution that the long‑term water‑shortage challenges for the Colorado River system remain unresolved.
Reader questions
Why did Lake Powell’s water level increase in the fall?
Record October rainfall and resulting runoff in southeastern Utah and the San Juan River watershed pushed inflows into the reservoir at a rate far exceeding outflows.
What is the current storage level of Lake Powell?
The lake sits at roughly 3,538 feet elevation, about 27 % of its total capacity, still 162 feet below full pool.
Will this rise solve the Colorado River’s water‑shortage problems?
Officials say the surge offers short‑term relief, but the reservoir remains far from full and long‑term challenges for the river basin continue.
Source: kutv.com
