Thursday, March 26, 2020

Thursday 3 26 20 morning call

As you know I like to post a picture from the day before, if I have one. I only took very few yesterday, so here's the best one.

But here's a much more impressive one of Robby Naish at La Perouse taken by Fish Bowl Diaries two days ago (Mar 24).

Paul and Sophie must have been shooting from different spots, this is the same wave from another angle.

5am significant buoy readings and discussion
South shore
2.3ft @ 13s from 199° (SSW)
0.7ft @ 20s from 191° (SSW)

2ft @ 14s from 198° (SSW)
0.4ft @ 20s from 211° (SW)

SSW swell down to a couple of feet 14s at the buoys, which is a lot smaller than it was, but still far from flat. Notice the sliver of the 20s energy both buoys are feeling, sign of the start of another long period pulse of energy. Below is the collage of the maps of March 18, 19, 20 and 21. I put a red arrow on the fetch that has made the waves we've had so far and a black on a completely different one that is the one responsible for the new low long period energy.

It should appear immediately clear that this second swell won't be as strong as the first one. The second fetch, in fact, was first heavily blocked by New Zealand and when it then moved east of it and out of its shadow, it was a lot weaker and a little more distant than the first one. Still a fetch nonetheless, so there are still going to be (small) waves on the south shore for another week (there was yet another fetch after those two).

Check the Lahaina webcam for size, condition and consistency, this was a pretty decent size set and I've seen a couple of more head high ones while writing this post (love the split screen).

North shore
2.1ft @ 14s from 310° (WNW)

1.6ft @ 14s from 311° (NW)

10.4ft @ 9s from 55° (ENE)
2.1ft @ 4s from 84° (E)
1.2ft @ 15s from 332° (NNW)

The NW buoys are "overwhelmed" by the strong easterly windswell and don't even report the very low NW energy that the more protected local buoys show. I'm impressed by the sensitivity of Pauwela, as that one is not protected at all (10.4ft 9s from 55!) and yet it still senses it.
Well, that small amount of NW energy won't be much detectable in the water by human observers instead, as the windswell is just too strong. Pretty useless too, seen the strong active wind on it, unless you seek and find a very sheltered spot.

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

Small NW fetch and strong ENE windswell fetch in the North Pacific.

No more good stuff from the south.

Morning sky.

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