Sheet flow defines the swamp …
Even though it’s only present a month or two per year.

Sheet flow synopsis – the swamp can count on peak sheet flow about 0.5 to 2.5 months per year.
And by “present” I mean it its peak form.
That’s when water is discharging at 2,000 cubic feet per second (cfs) under the 35 miles of the Tamiami Trail that pass through Big Cypress National Preserve.

Sheet flow hydrograph – this November matched the historic peak for the month
The swamp is often soggy,
But “peak” sheet flow is a short season at best.