Re: Problem when there's no dew-point

[Nick B <nic...@ya...>]

Tom McDonald wrote:

>I assume that Leeds Bradford Airport are returning their metar reports in
>the wrong format, and should just be returning "18/" if they are not
>including dew point rather than "18///".
>
>  
>
Thats the correct format Tom. The UK METAR coding rules say that if dew 
point is not available the it should be replaced by a double ellipsis 
"//". I must have a word with my friends in ATC Engineering there and 
ask them to fix it ;-)


To quote from UK AIP GEN 3.5.10:
 ----snip----
9 Air Temperature/Dewpoint
9.1 These are given in Degrees Celsius, M indicates a negative value .
       Examples 10/03, 01/M01.

       If the dew point is missing, the temperature would be reported as 
10///
----unsnip----

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Regards,
Nick B.