On 27 Oct, 17:44, "Keith (Southend)"
wrote:
Graham Easterling wrote:
Very big spring tides the last couple of days, size decreasing now.
Luckily it's not been rough, and the pressure's been reasonably high.
Still not a good idea to park on the Abbey Slip though.
www.easterling.freeserve.co.uk/HT.html
Pleasant enough day yesterday, spells of hazy sunshine raised the
temperature to 15.1C. Might top 16C today, but damp drizzly & misty.
It looks like the temperature will stick near 15C much of the evening
& night. Swell's picked up markedly thoughwww.sennen-cove.com/todaysurf.htm
- makes quite a change.
[OT] but I find this a vaguely depressing time of year. Virtually all
the small boats are out of Penzance harbour & in the harbour car/boat
park now. The baulks go down in the harbour mouth at Mousehole
tomorrow, to stop storm waves surging into the village over the
winter. Although the waves do a pretty goood job at taking the direct
route sometimes.www.easterling.freeserve.co.uk/PzStorm.PDF
Time to get on with all the decorating & maintenance jobs.
Graham
Penzance
Graham, I was wondering, are these high tides higher and more regular
nowadays, or just a normal occurance?
--
Keith (Southend)http://www.southendweather.net
e-mail: kreh at southendweather dot net- Hide quoted text -
- Show quoted text -
Keith,
The largest astronomical tides occur close to the equinox. The highest
predicted tides in Penzance this year being 20/21st March, 28th
September & 26th October.
However, reality often varies quite a bit from predictions, even under
quite benign weather conditions. I've seen the tide still rising 30 or
40 minutes after it was due to turn.
The lower the atmospheric pressure the higher the tide, also,
especially in a bay like Mount's Bay, an onshore wind can raise the
tide. This combined with low pressure, can increase the height of the
tide by a few feet. On top of this you have the wave height to
consider. So what can make a difference is if there has been an
increase in stormy conditions close to the equinox, and I don't really
think there has.
Graham