Received: from hpmsd3.sj.hp.com by opus.hpl.hp.com with SMTP (1.37.109.18/15.5+ECS 3.3+HPL1.1) id AA097461451; Mon, 18 Aug 1997 14:57:31 -0700 Return-Path: <kirk@hpmsd3.sj.hp.com-DeleteThis> Received: from hpoclrf.sj.hp.com by hpmsd3.sj.hp.com with SMTP (1.38.193.4/15.5+IOS 3.22) id AA22400; Mon, 18 Aug 1997 14:57:31 -0700 Sender: kirk@hpmsd3.sj.hp.com-DeleteThis Message-Id: <33F8C54B.5738@hpmsd3.sj.hp.com-DeleteThis> Date: Mon, 18 Aug 1997 14:57:31 -0700 From: Kirk Lindstrom <kirk@hpmsd3.sj.hp.com-DeleteThis> Organization: Sending from inside Hewlett Packard X-Mailer: Mozilla 3.0 (X11; I; HP-UX A.09.07 9000/735) To: wind_talk@opus.hpl.hp.com-DeleteThis Cc: "kenfw - Ken Follosco @ Intel" <Ken_Follosco@ccm.sc.intel.com-DeleteThis> Subject: Re: Tide calculations at Palo Alto References: <199708182025.NAA32802@apple.com-DeleteThis> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit
Ken's numbers for Palo Alto by my calculations are for getting back thru
the channel slot which is very difficult on a sinker. I find the
shallow depth OUTSIDE to be too scary for me as I don't like missing a
jibe and coming off into 2ft of water where there are sharp things on
the bottom or sometimes rocks...ok, maybe I should make more jibes! To
be really safe, I add an hr for comfort but often push the envelope
since I like sailing close to home and Palo Alto is so much closer to
San Jose than is Coyote/Third.
So, "bottom line" is tail dragging is expected about an hr before the
"safe times" on Ken's charts.
Kirk (230#) out
PS sailed there on 6.5/9'6" yesterday and had fun, but a 7.5 would have
been more fun..
Bo3b Johnson wrote:
>
> Previously I mentioned that I thought the tide reports on Ken's wind
> reports were dead on. I need to correct myself for Palo Alto, which is
> where I use them. The 'Safe_After' times don't seem to be fully correct.
> I don't know whether that is due to taller mud flats, or the tide height
> calculations are off.
>
> About a week ago, I drug my fin through the big mud flats that are east
> of the dock, during a presumably 'safe' time. Naturally, I wasn't going
> fast, because these are all estimates. If I understand the goal of the
> calculations, it would appear that +4 is no longer fully safe. I
> estimate that the time is off by at least 40 minutes.
>
> In addition, here's a report from another sailor there, last Sunday:
>
> >I went sailing at Palo Alto on Sunday, the tide was unsafe at 5PM. We
> >were there at 2:30 PM and had a great sail until 4PM. When I came in at
> >4:15 the fin hit the mud at times, and as I was sailing, someone else got
> >launched and lost his fin. I asked later whether he hit a sand bank, but
> >he said he didn't feel anything when he got launched.... Someone else had
> >to walk through the mud at 5PM.
> >
> >Anyway, it was a great day at Palo Alto, but you gotta watch the tides.
> >Tuesday 8/19 should be a nice day at Palo Alto.
>
> Crissy 3rd Ave Palo Alto
> Low_Tide: 08-17 5:05 am -0.9 6:24 am -0.8 7:13 am -0.8
> Safe_After: . . . . 9:19 am +2.5 10:25 am +4.0
> High_Tide: . 12:11 PM +5.2 12:55 PM +6.9 1:07 PM +7.5
> Unsafe_After: . . . . 5:29 PM +2.5 4:57 PM +4.0
> Low_Tide: . 5:05 PM +1.9 6:32 PM +2.1 7:26 PM +2.1
> Safe_After: . . . . 7:34 PM +2.5 9:25 PM +4.0
> High_Tide: . 11:24 PM +6.7 12:27 am +8.5 12:50 am +9.3
> Unsafe_After: . . . . 4:23 am +2.5 4:22 am +4.0
>
> So... Just an FYI. Worth knowing, since that inspires a more slavish
> adherence to the channel for me. Ken, you might want to check the
> software to be sure the computers have not dealt us a bad hand. (And
> many thanks for the reports, I really appreciate them.)
>
> --Bo3b Johnson
--"There is more to life than increasing its speed." - Gandhi +----------------------------------------------------------------------+ | Kirk Lindstrom - CSSD Product R&D | Hewlett-Packard Co. M/S: 90UA | | Engineer/Scientist, Hardware | Communication Semiconductor | |------------------------------------| Solutions Division | | kirk_lindstrom@sj.hp.com-DeleteThis | | | Kirk Lindstrom / HP0100/UX | 370 W. Trimble Rd. | | ph 408 435 6404 | fax 408 435 6286 | San Jose, CA 95131-1096 | +----------------------------------------------------------------------+
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