Calling the Breeze

> 10 years ago
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Andris
Andris
WA
102 posts
WA, 102 posts
13 Dec 2005 11:30am
Mattressbuster

re your comments on the "Right of Way" thread re calling brrezes too strong......

I humbly submit to your superior knowledge of the wind but...

I called 20-28 kts on Sunday am because I was looking at those figures available on Seabreeze (wap service) on my mobile phone at that time.

Also if you look at Sunday on the link below you will see that the 10 minute average was around 20 kts (gusts are not shown on that graph - but on the day the readings were up to 28)...

www.seabreeze.com.au/graphs/wa_last7.asp

Maybe the wind reading needs calibrating - but it felt like a 35 kt squall -

Any comments Security?



Rollo
Rollo
WA
26 posts
WA, 26 posts
13 Dec 2005 12:41pm
a good rule of thumb is sand transport happens at 24/25 knots. a 12 becomes extremely uncomfortable past 23 knots.
pedro
pedro
WA
44 posts
WA, 44 posts
13 Dec 2005 12:47pm
in my experience sand blowing starts well below 25knots - nearer 15 to 17knots. Depends on your sand I guess though :) Cott has that nice powdery stuff, not like the pebbles you get up at Scarbs. Agree with the bit about 12m and 23 knots.
jan
jan
WA
1119 posts
jan jan
WA, 1119 posts
13 Dec 2005 12:49pm
at 23 knots why wouldnt you fly a ten anyway :)
mattressbuster
mattressbuster
WA
177 posts
WA, 177 posts
13 Dec 2005 12:50pm
www.seabreeze.com.au/graphs/wa_last7.asp

nuff said.
Rollo
Rollo
WA
26 posts
WA, 26 posts
13 Dec 2005 1:09pm
'spose you're right... guess it does depend on the weight of the sand. a couple of months back spent 3 days at pt moore (afl footy final) in a breeze super smooth that built each day more or less from 15 to 25 +. then i'd chat to the surf life saving office on the beach each day and correlate sand transport to their instrumention plus when the 12 became almost hard to hold on the shore. 23 knots = 12m2 time to stop using. 24/25 knots = sand transport.
Spacemonkey!
Spacemonkey!
SA
2288 posts
SA, 2288 posts
13 Dec 2005 9:33pm
24/25 knots = sand whiping into sending pain through your legs if you are wearing shorts.
waveslave
waveslave
WA
4263 posts
WA, 4263 posts
13 Dec 2005 7:38pm
FACT:

Kiters overcall wind speeds.....
Reasons unknown.

Trivia by 'slave.
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