Tuesday, September 15, 2020

Tuesday 9 15 20 morning call

Thousand Peaks yesterday. Photo by Tomoko.

4am significant buoy readings and discussion.
South shore
2ft @ 8s from 178° (S)
1.4ft @ 11s from 200° (SSW)
0.6ft @ 14s from 186° (S)
0.5ft @ 18s from 194° (SSW)

1.8ft @ 9s from 186° (S)
1.4ft @ 11s from 229° (SW)
0.5ft @ 18s from 188° (S)

Southerly energy down to minimal levels with 11s and 9s periods. A new low 18s period energy is felt by both buoys, let's see how Pat Caldwell described the evolution of the fetch:
A compact severe gale SSE of New Zealand 9/7-8 grew seas over 25 feet
aiming highest at the Americas. PacIOOS/CDIP American Samoa (AS) buoy
9/12-13 did show low swell from this source, although this location
would have been west of the primary swell swath

Below are the maps of the two days he mentions (9/7-8). The strong fetch SSE of New Zealand is almost aimed west to east and I didn't think of circling it, not even in blue (possible angular spreading). To me, it still looks aimed way too much towards South America to bring some energy locally, but evidently it wasn't. I'm afraid it's going to be extremely inconsistent and barely noticeable in the water though. The observation of the webcam will tell us if I'm right or wrong.

Check the Lahaina webcam if interested, for size, conditions and consistency.

North shore
2.5ft @ 8s from 29° (NNE)
1.7ft @ 5s from 88° (E)

 Flat everywhere on the north shore today.

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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