Thursday, May 27, 2021

Thursday 5 27 21 morning call

Fun waves on the Lahaina side yesterday.

3am Surfline significant buoy readings and discussion.
South shore
Barbers
2.4ft @ 14s from 232° (WSW)

Lanai

1.8ft @ 14s from 189° (S)

Southerly energy went down in size and period at Lanai (Barbers' direction probably influenced by the NW swell, so not reliable). There should still be fun size waves, but definitely smaller than yesterday. Check the Lahaina or Kihei webcams if interested, for size, conditions and consistency.
First light observations actually show a lot smaller than yesterday.

North shore
NW101
5.1ft @ 12s from 337° (NNW)

Hanalei
2.4ft @ 13s from 319° (NW)

Waimea
1.8ft @ 14s from 325° (NW)

Pauwela

3.5ft @ 8s from 88° (E)
1.5ft @ 14s from 327° (NW)

New NW swell will be rising all day. Here's how Pat Caldwell described the evolution of the fetch:
A low deepened and stalled just west of the Date Line on the Aleutians 5/21-22. It set up a long, wide fetch of near gales with small pockets to gales over the 320-340 degree band. Seas grew to near 20 feet at the peak on 5/23 with the head of the fetch about 1800 nm away. The system weakened sharply 5/24 as it moved east of the Date Line.

Below are the maps of May 21 through 24 that will help follow. The fetch actually never moved east of the date line, but it did get pretty weak on the 24th.


Below are the graphs of NW101 and Pauwela, together with the Surfline prediction. Home guess for Hookipa is for around chest to head high at sunrise and building throughout the day. Sunset should be pretty solid with 5ft 12s at the NW101 buoy.


Forecast and energy spectrum 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) 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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