Tuesday, July 10, 2018

Tuesday 7 10 18 morning call

A longboard and SUP foiling session for me yesterday. The first one was at Hookipa and this photo from Dave Lane shows a perfect example of a head high wave.

4/5am significant buoy readings
South shore

1.8ft @ 13s from 143° (SE)
1.7ft @ 11s from 141° (SE)

2.7ft @ 13s from 101° (ESE)

2.4ft @ 13s from 129° (ESE)

1.2ft @ 12s from 175° (S)
1ft @ 6s from 173° (S)
1ft @ 14s from 167° (SSE)

Still decent medium period readings at the outer buoys in a day that is predicted to be fairly small. Tomorrow the EXTREMELY SLOW arrival of a new long period swell is predicted, the origin of which is described by Pat Caldwell in this way:
A storm-force system near 65S to the S to SE of New Zealand 7/3 hugging the Antarctic ice sheet tracked east with highest seas to 35 feet aimed at the Americas. It weakened as it moved east. Angular spreading should bring, low, long-period swell to Hawaii 7/11 from 180-200 degrees. It should peak near average on Thursday 7/12.

If you scroll down to yesterday's post, you'll see that storm in the collage of the maps of July 2,3,4 and 5 that I posted in this section. I could repost it, but I'd rather post the next three days offshore swell forecast from Surfline (link n.14) instead, that shows the swell in light blue color only picking up tomorrow.

For today we got to live with what's in the water and that's not much at all, as this snapshot of the Ala Moana webcam shows.

North shore
5.1ft @ 8s from 37° (NE)

Wow, 37 degrees! I didn't remember circling any fetch that would justify that, and in fact in the map of the 7th I disregarded a fetch that seemed weak. I now circled it in blue, and all of sudden, more than 30 years after having studied them, the graphic image of an antenna's radiation lobes popped up in my memory. That should give Hookipa some waves also today, I'll report from there around 7 - 7.30.

Wind map at noon.

North Pacific only has a weak/short windswell fetch. That means the end of an couple of weeks of amazingly well oriented and long/strong enough windswell fetches. That's why the waves have been so good at Hookipa lately. Soon back to normal semi-flat summer conditions, at least for this week.

South Pacific has an interesting cock-roaches traffic. A small portion of the winds is oriented towards us and I circled it in red. And then there's two big and relatively strong (specially the one close to the ice sheet) fetches that aren't oriented towards us, but we should get some angular spreading out of both. I hope, at least.

Morning sky. Those high clouds are moving in from the SW.

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