NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Waves
From: Bill B
Date: 2004 Jul 23, 17:16 -0500
From: Bill B
Date: 2004 Jul 23, 17:16 -0500
> Sorry to say, no. Only that I did re-read it someplace this or last year and > say to myself "Ahah!" and making a pointed mental note of it, with the link > that last time I went out in "4-6 waves" and they were very much 8-10 to > everyone on board, that explained the difference. Working from memory so can't quote the source, there are "predictable extremes" for waves or some such phrase. The gist being that waves 50% larger than the upper figure are usual. What I don't know is whether this is factored into a marine forecast. 4-6' could mean average of 4' with predictable extremes to 6'. Or it could mean a range of 4-6' with predictable extremes of 9'.. But 2-4? That would be 2-3 if the average is 2 and predictable extreme is 50% greater than 2. So if the forecast is for 4-6, can we expect a nice threesome of 9 ft waves now and again? Saw that last weekend. Bill
