Forums > Kitesurfing   Western Australia

Wind at Melville today

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Created by Swavek Saturday, 17 Oct 2020
Swavek
WA, 342 posts
Saturday , 17 Oct 2020 9:35PM
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Strange that the wind was pumping today at Garden Island, Safety Bay, and Roto but nothing at Melville. I wish I new more about the weather to not waste my time waiting for the wind to come (which it did the last few days, but not today).

Is it possible to deduce this based on the pressure charts and knowledge of weather/wind?

Nutdip
WA, 57 posts
Saturday , 17 Oct 2020 10:49PM
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It had a lot of south in it today. Maybe Melville is even more sh!t with south in it? Also, the easterly felt warm and moist so that could help explain why the sea breeze didn't penetrate too far inland.

davinchi
WA, 19 posts
Sunday , 18 Oct 2020 11:14AM
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Select to expand quote
Swavek said..
... Is it possible to deduce this based on the pressure charts and knowledge of weather/wind?


yes.. just start with looking at all the observations and forecast data/charts you can and soon enough you'll become an expert like many other "crusty old windsurfers"

- synoptic analysis:
www.bom.gov.au/australia/charts/synoptic_col.shtml

- synoptic forecast (australian ACCESS model):
www.bom.gov.au/australia/charts/viewer/index.shtml?type=mslp-precip&tz=AWST&area=Au&model=CG&chartSubmit=Refresh+View

- sat viewer:
satview.bom.gov.au/

- ACCESS model, the link SimonM posted:
www.bom.gov.au/marine/wind.shtml?unit=p4&location=wa-per&tz=AWST

- ECMWF from windy.com:
www.windy.com/-32.021/115.825?-32.153,115.825,10,i:pressure,m:cLMajod

- MetEye from BoM:
www.bom.gov.au/australia/meteye/
(short term underlying wind grids in MetEye will generally be from ACCESS or ECMWF at least until day 2, depending upon which model is verifying better on the day with some "forecaster tweeks" that may or may not represent reality at a given point. From day 3 to day 7 they may just be a consensus forecast between a number of different models with some "forecaster tweeks".

generally speaking ACCESS and ECMWF are the best performing models in the australian region. GFS (also available from windy.com and "other sources" does not consistently perform in Australia as well as ECMWF and ACCESS)

snalberski
WA, 737 posts
Sunday , 18 Oct 2020 11:19AM
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Select to expand quote
Swavek said..
Strange that the wind was pumping today at Garden Island, Safety Bay, and Roto but nothing at Melville. I wish I new more about the weather to not waste my time waiting for the wind to come (which it did the last few days, but not today).

Is it possible to deduce this based on the pressure charts and knowledge of weather/wind?


Looking at the bigger weather systems picture on Windy.com I find useful. Yesterday one system was feeding WA from the SW and another was feeding from the SE, converging on the coast line. This accounts for easterlies most of the day with a late and short submission by the easterlies to the system feeding the SWesterly, possibly bolstered by any seabreeze effect particular to WA. The conditions were pretty much what I expected for the coast but predicting inland is probably harder.
Regular study of the live wind/system conditions provided on Windy.com can provide a more complete forecast and the app actually provides computer generated for casting.

Swavek
WA, 342 posts
Sunday , 18 Oct 2020 2:09PM
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Thanks guys, might have to study it a bit more... Sounds like it is worth the effort to try to understand it.



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Forums > Kitesurfing   Western Australia


"Wind at Melville today" started by Swavek