This file contains data from the National Data Buoy Office Coastal-Meteorological Automated Network (C-MAN) weather station near Long Key, in Florida Bay (LONF1, 24deg 50min 36sec N, 80deg 51min 42sec W). The time period is 1600 EST February 6, 2004 through 0700 EST May 28, 2004. The record is a combination of NDBO data (wind speed, air pressure, air temperature water temperature) and Harbor Branch data (relative humidity) needed to calculate evaporative water loss. The file is one of several from this location. Together, they can be used to estimate of hourly, daily, monthly, seasonal and annual evaporation rates. Calculations include hourly water loss and cumulative water loss. Times are Eastern Standard.