Howdy,
NWSI 10-1701 describes the format of the WMO Abbreviated Heading and uses
the code form of
ttaaii_cccc_ddhhmm_bbb
to describe it. The `_bbb` field is only used as appropriate and Table 4
on page 14 describes its usage:
http://www.nws.noaa.gov/directives/sym/pd01017001curr.pdf
The general form is AAx (amended/updated) or CCx (corrected) or RRx
(delayed or same ddhhmm usage). Anyway, that leads me to the usage of
`RTD` for the bbb field like so:
SACU31 MUHA 090915 RTD
METAR
MUCL 090905Z AUTO 09009KT 29/23 Q1014=
Googling around I stumble into this document:
http://stevespages.com/NewManuals/Navy%20Rate%20Training%20Manuals/14272.pdf
and page 1-12 describes two additional bbb fields of
RTD (routine delayed) and
COR (correction)
So of course, MUHA is Cuba and not subject to NWSI 10-1701. So I wonder
where the 'standard' is for this bbb field. Ah WMO has this:
http://www.wmo.int/pages/prog/www/ois/Operational_Information/Publications/WMO_386/AHLsymbols/bbb_en.html
But does not appear to support the usage of 'COR' or 'RTD' ? Any kind
souls wish to end my wild goose chase and explain this fun to me? :)
daryl
--
/**
* daryl herzmann
* Systems Analyst III -- Iowa Environmental Mesonet
* https://mesonet.agron.iastate.edu
*/
