Tuesday, October 19, 2021

Tuesday 10 19 21 morning call

Hookipa yesterday afternoon.

5am Surfline significant buoy readings and discussion.
South shore

2ft @ 8s from 172° (S)
1.1ft @ 16s from 183° (S)

Small long period southerly energy at Barbers. Check the Lahaina webcam if interested, for size, conditions and consistency.

North shore
4ft @ 10s from 24° (NNE)

2.1ft @ 11s from 351° (N)

Kaneohe Bay

3.2ft @ 8s from 26° (NNE)
2.2ft @ 6s from 73° (ENE)

Interesting reading of NNE energy at the north buoy. To examine where it came from, let's first look at the position of the buoys around Hawaii. The N buoy is 212 nm out at a 42 degrees angle.

Below are the maps of Oct 15 through 18. The energy at the N buoy (and Waimea) probably comes from the angular spreading of the fetch I indicated with blue arrows. It should be bigger in Maui than in Oahu, so we could have up to 3ft 10s locally. That might give relatively organized waves in the head high range.
The red arrows instead indicate the fetch that generated the first of a couple of NW to N pulses that will start arriving tomorrow evening (yellow dotted line on the Pacioos forecast below).

Forecast of Pauwela from this PACIOOS page.

Wind map at noon. The other ones can be found here (click on animation of the 10 meter column).

Fetches map
(circles legend: red: direct aim, blue: angular spreading, black: blocked, yellow: possibly over the ice sheet) from Windy.
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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