Saturday, September 05, 2020

Saturday 9 5 20 morning call

I finally found the time to edit the Kai Penny episode n.8: The bean burritos.

3am significant buoy readings and discussion.
South shore
1.6ft @ 18s from 192° (SSW)
1.2ft @ 11s from 184° (S)
1.1ft @ 15s from 175° (S)

1.7ft @ 14s from 188° (S)
1.3ft @ 20s from 193° (SSW)
1.2ft @ 11s from 188° (S)

Biggest swell since mid July (doesn't take much) is on the rise, here's how Pat Caldwell described the evolution of the fetch.
The strongest austral mid- to high-latitude system near the Hawaii swell window in over 6 weeks unfolded 8/28-30. Severe-gale to storm-force winds grew seas within 30-40 feet south of 50S to the S to SE of New Zealand by early 8/29. SW surface winds in this area are closest in proximity to the great circle route of 190 degrees to Hawaii. The brunt of the source was aimed at the Americas. The large source area gives better odds for angular spreading to bring the long-period swell to Hawaii

Below is the collage of the maps of August 29 though 31 which will help follow the above description.

Check the Lahaina webcam if interested, for size, conditions and consistency. Long travel distance and angular spreading will make the long period ones very inconsistent, but there's also the shorter period leftover ones.

North shore
3.8ft @ 5s from 71° (ENE)
3.6ft @ 9s from 31° (NE)

9s NE energy is on its way down, but there should still be some waves at Hookipa and on the eastern exposures.

Wind map at noon (the other ones can be found at link n.-2 of GP's meteo websites list in the right column).

Fetches map (circles legend: red: direct aim, blue: angular spreading, black: blocked, yellow: apparent direct aim, but out of the great circle ray map, so not 100% sure).
North Pacific (about 4 days travel time from the NW corner of the North Pacific):

South Pacific (about 7 days travel time from east/west of New Zealand):

Morning sky.

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