The hydrograph above shows therise and fallof Shark River Slough as measured at P33 over the past seven years. Typically, the slough holds water, or stays hydric, during the typical spring. That contrasts from the Big Cypress Swamp where the center of the cypress domes go dry by late spring. Both 2009 and 2011 were deep droughts in the glades.
But that's nothing compared to the epic 2011 drought.
Rare to see even the center part of the slough go dry.