Re: What is the difference between metar and aaxx???

On Tue, 20 Sep 2005 14:17:27 +0200, "Adam Mikulá¹ek"
<mikulasek@xxxxxxxxxx> wrote:

>Hello,
> when reading weather information from www.wunderground.com, sometimes
>it's derived from metar which is relatively simple to understand and it's
>many descriptions of it on the Net. But other times it's derived from a
>terrible messages that begin by "aaxx" and following five nothing-saying
>numbers. I would like to ask somebody who knows, what is aaxx message and
>where to find a description of it.
>Thank yiou.
> Adam
>

AAXX data is surface synoptic

Best document is from the WMO

http://www.wmo.int/web/www/DPS/NewCodesTables/WMO306vol-I-1PartA.pdf

It's not too hard to read once you've seen a few of them.

METAR is also described in the above document.

There may be some national/regional variations but not too much.

Jim
.

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