Weather RMK Identifier
 

Hi,

Where can I find the all explanations about the RMK words?

What is the mining of the RMK?

CYYZ 281306Z 00000KT 1SM BR SCT240 RMK FG2CI1

Thank's

As far as I remember, that is to explain what is the extent of the cloud coverage. In more details, it tells in different terms what the coverage is. In this case, they are reporting 2/8 fog and 1/8 cirrus coverage.

The indicator RMK indicates the begining of a section containing information included by national decission and which will not be emitted internationally.

That´s what my book says.

As far as I know in the UK, RMK in a METAR or it may just be TREND.....?, or commonly referred to as a landing forecast can only be issued if a qualified Met man is present at the time of compiling the METAR. I know a TREND is a general forecast trend for the next 2 hrs. If only a observer that is not a qualified Met man is present then no TREND can be issued as the METAR is really an observation and not a forecast.

Again I’m not sure if the RMK would be the same as a TREND in needing a qualified Met man……..?

JTstream is close but I'm not sure that 2/8 (octas) fog is correct. The full decode will be in your jeppesen manual, MET section. RMK in N America is reserved for general met observations only on metars or speci.
Regards and happy new year to all
FEBA

Try and get hold of a copy of 'Get Met' published by the UK Met Office - i think its free.

http://www.met-office.gov.uk/aviation/

Best of luck

Jinkster

Fog 2, Cirrus 1 is indeed correct.

This is a Canadian speciality.

The conventions used are the same as in the Canadian hourly observation on the Surface Weather Record. That particular part is described here as column 40. Although it says that F (not FG) is fog, the convention used in METARs seems to be FG. Fog seems to encompass mist for the purpose of the RMK.