CFS
see-eff-ess
Cubic feet per second — the standard measurement of river volume in the United States, indicating how much water is passing a given point per second. A river at 500 CFS is a different creature than the same river at 5,000. CFS is the number paddlers check before every trip, the way surfers check the swell report.
Etymology
Engineering/hydrology measurement. In metric countries, the equivalent is cubic meters per second (cumecs).
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