https://www.ndbc.noaa.gov/show_plot.php?station=fskm2&meas=wvdr&uom=E&tz=EST
NDBC - 5-day plot - Mean Wave Direction at FSKM2
National Data Buoy Center - 5-day plot - Mean Wave Direction at station FSKM2 (39.219N 76.528W) - 8574728 - Francis Scott Key Bridge, MD.
ndbcdayplotmeanwave