SIGMET help!!!
 

Hi folks, I'm new to this forum so I am not sure if this is the right place to
post weather questions. Please let me know if there is a better place on the web
for this.


I am from Canada, and I've put what I ;m having trouble understanding in parenthesis.





(WSCN32) CWEG 262337
SIGMET M6 VALID 262335/270225 CWEG-
CZEG EDMONTON FIR CNCL SIGMET M5 262225/270225
RMK GFACN32/CZWG WINNIPEG FIR SIGMET B5=
(END/WSCN22/CWAO)



(WSCN32) - This is the map region number for the prairies, so far so good.
(END/WSCN22/CWAO) But here WSCN 22 is different and I don't know where the ''22'' comes from. Also I don't know what CWAO means and I've looked everywhere without success.


Thanks!

A link to a tutorial on SIGMET: Recurrent Training Program / Formation périodique opérationelle

I'm guessing CWAO identifies the office from which the bulletin was issued, i.e. Canada - Weather - Aviation - Office.

Don't worry, as anything mentioned after (END... in the bulletin won't be on the written exam.

Thanks ill have a look.


So what does (END) means? Does it mean the sigmet ended?

See the Aeronautical Information Manual, section 3.18 for a detailed description of SIGMET messages.

https://www.tc.gc.ca/media/documents...-AIM-MET-E.pdf

Two years ago Nav Canada announced that in order to better comply with ICAO norms Canadian SIGMETs would be issued with transmission headers that identified the FIR region (digits 0# or 2#) instead of the GFA region (numbers like 3#), and would identify the originating authority as CWAO instead of specifying the issuing Meteorological Aviation Center. What you have is a hybrid, issued with an old style header (WSCN32 CYEG) but containing the new style header information (WSCN22 CWAO) in the end tag.