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Re: [data-curation] AWOS Sites Not Yet Available Through NADIN On NOAAPort

Mike,

For those sites that have a FAA 4-letter code, their METARs can be made available. 
There are two ways this is done.

1) The 4-character FAA code is officially changed to a 3-character FAA code, and then
    an then a "K" is put in front, and the METARs then can go out over data lines, as
    you noted below.

2) An unofficial 3-character code is assigned, but the site still retains its 4-character
    FAA code.  An example of this is the AWOS at Houston John S Dunn Heliport.  The
    official FAA code is 38TE, but a 3-letter code was assigned (MCJ) so the METARs
    go out as KMCJ.  Another example is Pampa/Mesa Vista TX.  TX13 is the official FAA
    code, but to get METARs out, a three-letter code of BPC was assigned.

Recently, an AWOS was commissioned at a heliport at the Methodist Hospital of Indiana
in Indianapolis.  Its FAA code is 81II.  However, the unofficial code of 22L was assigned
to it, presumably b/c they want the AWOS METARs added to NADIN eventually.  See
attachment.
airportcode.JPG
On another subject, only METARs for AWOS-3 or higher are allowed on NADIN as far as
I know.  AWOS-A, AWOS-AV, AWOS-1, and AWOS-2 are not.

Boris

On Tue, Nov 22, 2022 at 12:41 PM Michael Graf - NOAA Federal <address@hidden> wrote:
fyi...anything in the CONUS with a 4 letter Alpha-numeric will never go on NADIN. 

Example from this list....

U76      MOUNTAIN HOME             ID *...his is Ok, because if ever routed via the NWSTG/WMSCR it would go as KU76
75IS     CHICAGO/LURIE             IL...Not ok...we do not route 5 letter idents. In this case K75IS

Users that get saddled with these 4 letter alpha-numerics due to the FAA rules won't see longline dissemination unless it's via another method, or the ident gets changed to a three letter alpha-numeric. The K indicates the product is from the CONUS, similarly a P indicates a geographical location like Alaska or the Pacific. 

Mike 

On Mon, Nov 21, 2022 at 3:58 PM Boris A. Konon <address@hidden> wrote:

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--
Michael L. Graf
Meteorologist/International Liaison

National Weather Service
SSMC-2 Station 13314
1325 East West Highway
Silver Spring MD 20910

work 301-427-9109 
fax  301-713-1520
cell 304-268-0691 

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