Global wind map

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Troppoz
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Global wind map

Post by Troppoz » Sat Dec 21, 2013 7:06 am

Recently came across this website with a Google Earth type thingee but showing wind speeds and patterns:


http://earth.nullschool.net/#current/wi ... ,-6.00,295



You can see all the frigid arctic air from a low over Iceland moving straight across the northern Atlantic right over the UK, any wonder your winters are so bloody cold! My step father is in Wales now on holidays, his first Christmas in the UK since he emigrated when he was 20, and all he does is complain about how bitterly cold it is! 50 years in the tropics has spoiled him! :lol:

Also the southern hemisphere cyclone season is in full flight with Severe Tropical Cyclone Bruce to the west of Australia in the Indian Ocean, along with his little friend Tropical Cyclone Amara further west near Madagascar. If you zoom into the Timor Sea between Timor and northern Australia you can just make out the beginnings of rotation which is supposed to develop into a tropical cyclone (TC Christine I think it will be), that could possibly affect us here in Darwin on Boxing Day.

In the same region and worth noting is the Inter-Tropical Convergence Zone, otherwise known as the Indian-Australian monsoon in this part of the workd, starting to flow moist air down through SE Asia before colliding with the trade winds from the southern hemisphere. The monsoon is supposed to reach us within a couple of days so we can expect a wet end to an otherwise dry December.

If you look at the northern hemisphere in the Pacific Ocean you can see a big swirling low east of Japan and a big high pressure system to the west of Canada with a strong zone of convergence right in the middle where their winds meet. Id imagine that it will be very wet and wild there right now... Fascinating stuff for weather nerds like me!

Of course since its in real time those features will change with every day.
Sean


Conifers
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Re: Global wind map

Post by Conifers » Sat Dec 21, 2013 11:12 am

Seems there's at least two different base levels available:

1000hPa (sea level)
http://earth.nullschool.net/#current/wi ... c/1000hPa/

500hPa (high level winds - note the jet stream in the north Atlantic!)
http://earth.nullschool.net/#current/wi ... ic/500hPa/

Can't find any home page to say what else is available.

Edit: found it - click on 'earth' in the bottom left corner, that gives a menu. 1000 – 850 – 700 – 500 – 250 – 70 – 10 hPa available.


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Troppoz
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Re: Global wind map

Post by Troppoz » Sat Dec 21, 2013 11:53 am

Yeah thanks Conifers, I was remiss in mentioning that. :oops:

Personally Im a lower atmosphere kinda guy - jet streams and upper troughs and ridges leave me cold so to speak and take all the unpredictability out of weather watching and prediction. Makes it all too easy if you check whats happening up there when trying to figure out whats happening down here :wink:
Sean


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Dave Brown
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Re: Global wind map

Post by Dave Brown » Sat Dec 21, 2013 3:51 pm

This is brilliant icon_thumright Been having a play
Best regards
Dave
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Conifers
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Re: Global wind map

Post by Conifers » Sat Dec 21, 2013 5:22 pm

Troppoz wrote:Personally Im a lower atmosphere kinda guy - jet streams and upper troughs and ridges leave me cold so to speak
Yep, me too - I'd get a bit breathless up there, and it's also about -20 there too :lol:


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Dave Brown
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Re: Global wind map

Post by Dave Brown » Sat Dec 21, 2013 5:29 pm

Conifers wrote:
Troppoz wrote:Personally Im a lower atmosphere kinda guy - jet streams and upper troughs and ridges leave me cold so to speak
Yep, me too - I'd get a bit breathless up there, and it's also about -20 there too :lol:
The 1000hPa is surface level wind. The info is under the 'about' button :wink:
Attachments
Wind maps pressure explanation..JPG
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Conifers
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Re: Global wind map

Post by Conifers » Sun Dec 22, 2013 12:24 am

Useful altitude comparisons, thanks!


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