X-OldHeader: From gorecht@earthlink.net-DeleteThis.com Fri May 3 12:13:54 2002 Return-Path: <gorecht@earthlink.net-DeleteThis.com> Received: from opus.labs.agilent.com (root@opus.labs.agilent.com-DeleteThis.com [130.29.244.179]) by jr.labs.agilent.com (8.9.3 (PHNE_18979)/8.9.3 AgilentLabs Workstation) with ESMTP id MAA19694 for <wind_talk_ls@jr.labs.agilent.com-DeleteThis.com>; Fri, 3 May 2002 12:13:54 -0700 (PDT) Received: from msgbas1.cos.agilent.com (msgbas1.cos.agilent.com [192.168.148.33]) by opus.labs.agilent.com (8.9.3 (PHNE_18979)/8.9.3 AgilentLabs Workstation) with ESMTP id MAA08040 for <wind_talk@opus.labs.agilent.com-DeleteThis.com>; Fri, 3 May 2002 12:13:53 -0700 (PDT) Received: from falcon.prod.itd.earthlink.net (falcon.mail.pas.earthlink.net [207.217.120.74]) by msgbas1.cos.agilent.com (Postfix) with ESMTP id 17148CC87 for <wind_talk@opus.labs.agilent.com-DeleteThis.com>; Fri, 3 May 2002 13:13:53 -0600 (MDT) Received: from pool0200.cvx40-bradley.dialup.earthlink.net ([216.244.42.200] helo=w3n5i5) by falcon.prod.itd.earthlink.net with smtp (Exim 3.33 #2) id 173iV5-0007hP-00 for wind_talk@opus.labs.agilent.com-DeleteThis.com; Fri, 03 May 2002 12:13:52 -0700 Message-Id: <3.0.6.32.20020503121520.007ee930@pop.earthlink.net-DeleteThis.com> X-Sender: gorecht@pop.earthlink.net-DeleteThis.com X-Mailer: QUALCOMM Windows Eudora Light Version 3.0.6 (32) Date: Fri, 03 May 2002 12:15:20 -0700 To: wind_talk@opus.labs.agilent.com-DeleteThis.com From: Georg Recht <gorecht@earthlink.net-DeleteThis.com> Subject: Re: Crissy Wind Readings?? In-Reply-To: <v04020a07b8f87ea6b3d6@[10.9.199.203]>
I too find the Crissy iWind date very misleading. I know the sensor is on
top of the SF Yacht club but the readings never match the wind near that
location. I would like to get an actual reading at the sensor location
which is very close to what the beach at crissy would read. My estimate is
that the sensor adds about 10 knots to the actual sensor reading so that 18
knots would be actually 8 knots at the beach. Under normal conditions, wind
in the channel is probably at least 5-10 knots higher. I would like to get
an explanation on how the sensor gets its reading.
WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW
At 11:31 AM 5/3/02 -0700, you wrote:
>
>I'd appreciate some advice re interpreting iWind data at Crissy. Seems to
me that 10-32 SW with avg of 18 ought to be readily sailable. That was the
iWind reading around 4:45PM yesterday that drew me there initially after
work (very nearby).
>
>However, lots of windsurfers just watching from shore and not even
rigging. No one was out.
>
>Left in disgust (third time in recent weeks), fought traffic back home to
Berkeley and had excellent hour session 6:30-7:30 at His Lords fully
powered on smaller gear (6.7/98L). Reading of iWind gauge there was
similar (but obviously much more meaningful).
>
>I'm sure much of this is sensor location (unclear on where the Crissy
sensor is located - on the buoy/marker in front of launch?). Given tides,
etc, I'm not too keen on having to slog/swim out to any windline there (or
back), or aternatively rigging big and then being seriously OP'd outside.
Does wind direction play a major role, so one could tell from iWind not to
bother unless SW winds are averaging 20+ or something (or wait for more
Westerlies to fill in towards launch?)? I also noted that fog/clouds were
in over Crissy, but not yet covering Berkeley (maybe never sail Crissy
unless sunny?). However, Berkeley continued to blow nicely even after
cloud cover moved over.
>
>Please note, this is not pitch for Berkeley - it's already too crowded!
:)
>
> Thanks, David
>
This archive was generated by hypermail 2b29 : Thu Sep 04 2003 - 13:05:54 PDT