Weather forecasting

5 years ago
Reply
Register to post, see what you've read, and subscribe to topics.
snapperfish
snapperfish
NSW
61 posts
NSW, 61 posts
23 Jan 2021 11:06am
I am interested in learning how to forecast the wind myself (not just relying on my apps such as willyweather) starting with analysing the current chart of the high and low pressure cells. I have a high school geography level understanding of winds going anti-clockwise round a high, clockwise round a low etc. I am mostly interested in Botany Bay winds. When I am out on the water, I am getting better at visually forecasting by looking at the clouds etc.

Apart from the barometric pressure charts, what other charts are good to use when forecasting wind?

Chees,
snapper.
FabulousPhill
FabulousPhill
VIC
335 posts
VIC, 335 posts
23 Jan 2021 11:31am
"Instant Weather Forecasting" book or [pdf] by Alan Watts. Apparently free online if you register- several sites.
I like this guys books because they have photos and seemed clear, but I haven't read it for years now.
There are a few similar books in BoatBooks booshop.
r13
r13
NSW
1720 posts
r13 r13
NSW, 1720 posts
23 Jan 2021 11:42am
Great question.

I did a google and just found this which expect would answer the question...............got a headache already..............

journals.ametsoc.org/view/journals/wefo/19/2/1520-0434_2004_019_0181_wfftse_2_0_co_2.xml

Being far more open Botany Bay winds are normally easier to predict than the harbour but of course there are challenging days. Never trust a westerly wherever you are. Southerly busters are usually easy to predict with the cloud build up - but some occur out of a clear sky........

The land thermals have an impact on light breezes - if the land thermals don't occur as predicted then the typical east coast noreaster can become "blocked". Numerous times the forecast for nw breezes to go ne have not occurred in Botany Bay - the ne has happened offshore but doesn't get into the bay.

The marine forecasts are different to general forecasts.

www.bom.gov.au/marine/wind.shtml
snapperfish
snapperfish
NSW
61 posts
NSW, 61 posts
23 Jan 2021 11:51am
Very interesting, thank you all!
cheerio,
snapper :)
SandS
SandS
VIC
5904 posts
VIC, 5904 posts
23 Jan 2021 10:23pm
snapperfish said..
I am interested in learning how to forecast the wind myself (not just relying on my apps such as willyweather) starting with analysing the current chart of the high and low pressure cells. I have a high school geography level understanding of winds going anti-clockwise round a high, clockwise round a low etc. I am mostly interested in Botany Bay winds. When I am out on the water, I am getting better at visually forecasting by looking at the clouds etc.

Apart from the barometric pressure charts, what other charts are good to use when forecasting wind?

Chees,
snapper.


practice reading the four day pressure maps on BOM . It'll do you good
Please Register, or first...
Topics Subscribe Reply