On Sep 9, 3:46 pm, Weatherlawyer wrote:
Taking the hour from the above phases presents the approximate spell
type:

Misty Wet Fine

00:00; 01:00; 02:00;
03:00; 04:00; 05:00;
06:00; 07:00; 08:00;
09:00; 10:00; 11:00;
12:00; 13:00; 14:00;
15:00; 16:00; 17:00;
18:00; 19:00; 20:00;
21:00; 22:00; 23:00;

Anyway this simple division didn't work, so I divided the most
productive spells; the ones that impinged most directly on the North
Atlantic.

Misty

00:00;
03:00;
06:00;
09:00;
12:00;
15:00;
18:00; and
21:00;

And although they all produced thunder in the high season ( the middle
of May and early August if the lunar declination hit it right) in that
triangle where I lived, more notable spells could be seen for
thunderclouds at:

03:00;
09:00;
15:00; and
21:00;

And the other spells were more often than not of the low to misty
persuasion.

Yet that still left the thunder cells that came over from Europe, the
so called Spanish Plume which were -more often than not, nothing to do
with either division.