South Shore Buoy Report for Friday

The stacked time-series of wave energy from the southern cone (160 to 220 degrees) is showing a sharp rise at the SW buoy (green line) but local buoys (Lanai is the blue line) are pulsing in and out of the knee-waist high range. The up/down nature of the data is why I dislike using spot data (a reading at a single time). The buoys are noisy and the southern swells are inconsistent anyway, so I believe the way to look at the data is with the trends they reveal over time. The energy at the SW buoy will take until tonight to fully arrive although some long period forerunners will probably arrive this afternoon.

The spectrum (wave energy vs. period) from the SW buoy at 6am shows a very healthy peak at about 16 sec. from 185 degrees.

One last plot is of new-swell power and. old swell power, over time at the SW buoy. New swell (blue line) is the band from 12-20 secs periods. Old swell (red line) is the band 8-12 sec periods. New swell has been rising rapidly for several hours as of 6am this morning. This weekend should be a good one for the island's west side.

Have fun!