canadian metar help
 

anyone know what the AC5CI1 means in the following metar ?

CYYZ ------------------------M12/M19 A3033 RMK AC5CI1 SLP287

also seen CFICI1 and SC25C5 ( in the same place) , would appreciate a reference to a decode type table for these.

tks 4G

anyone know what the AC5CI1 means in the following metar ?

CYYZ ------------------------M12/M19 A3033 RMK AC5CI1 SLP287

also seen CFICI1 and SC25C5 ( in the same place) , would appreciate a reference to a decode type table for these.

tks 4G


I believe "Alto CU 5/8 Cirrus 1/8". Cloud type and Octets.

TP 14371 - Transport Canada Aeronautical Information Manual (TC AIM)


See the Met section.

Aviation routine weather reports (METAR) are coded weather observations that are taken each hour at over 200 aerodrome and other locations in Canada. In addition, special weather reports (SPECI) are issued whenever weather conditions fluctuate about or are below specified criteria. See MET 3.15.3 for the contents and decode instructions for these reports

The letter number combinations detail the type and amount of clouds. It tells you the type of cloud and the amount of sky coverage i.e CI=Cirrus 1=1/10, CU2 would be cumulous 2/10. The last entry SLP is the Sea Level Pressure, if my memory is correct. I believe all the details are in the publications section of the Meteorological Service of Canada website:

Contents - Meteorological Service of Canada (MSC) - [Meteorological Service of Canada - The Green Lane]

Oktas mate......8th's of the sky. Not Tenths.

fourgolds, have a look at this site. It decodes/explains a METAR for you.

Jerricho, thanks for the correction. Obviously my memory of days gone by - it used to be tenths and now is octas.

As correcctly stated by my children and fellow crew members - yes, you are an old fart!

Nurries mate.

Look at it as a wealth of experience.......not showing your age
;)