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Explore the NEWUSGS National Water Dashboard interactive map to access real-time water data from over 13,500 stations nationwide.
This page is undergoing modernization and will be decommissioned in the future.
Daily data are now available in WDFN.
Try it out and tell us what you think at wdfn@usgs.gov
USGS 02246518 POTTSBURG CRK AT US90 NR S. JACKSONVILLE, FL
Data are tidally affected -- Astronomical tides cause
significant cycles of approximately 24.84 hours at this site.
Because a different portion of the 24.84-hour tidal cycle is
averaged in successive daily (24-hour) computations, a systematic
secondary oscillation, unrelated to basin hydrology and having a
period of about two weeks may be apparent in daily data.