All the Suwannee River Basin USGS gages in Georgia just got a new flood level reporting system (except they missed one). They’ve added a level measurement from sea level, probably not coincidentally about the same as the Florida gages added a level measurement from dry riverbed, so both Georgia and Florida gages now have both measurements. This actually does not affect the WWALS level charts for the Withlacoochee and Little River Water Trail nor for the Alapaha River Water Trail, because those continue to display water levels from dry riverbed. To see this change at all, you have to drill down to the USGS detail pages, for example on the Withlacoochee River at Skipper Bridge Road in Georgia, or near Pinetta, Florida.

National Weather Service Weather Forecast Office, Tallahassee, FL, unknown date, Suwannee River Basin Datum Changes in South Central Georgia,

Starting on October 14, 2015, the National Weather Service in Tallahassee and Jacksonville will make adjustments to the reporting method for water level in the Suwannee River System. This includes river gages in the following rivers or creeks: Continue reading →