That water had two sources: (1) releases from Lake O and (2) runoff from the river's watershed.
|Comparison of water levels in|
Lake O during other high-release
flood years of note
But still, for that much water to flow ...
Lake levels must have been high.
Compared to a drought year, yes ...
But to similar "high flow" years, i.e. greater than 2.5 million acres, the answer is no.