https://www.ndbc.noaa.gov/show_plot.php?station=pvdr1&meas=avpd
NDBC - 5-day plot - Average Wave Period at PVDR1
National Data Buoy Center - 5-day plot - Average Wave Period at station PVDR1 (41.786N 71.383W) - 8453662 - Providence Visibility, RI.
ndbcdayplotaveragewave