YSSY Atis

[Philip Argy]

Someone at YSSY BM needs to look out the window this morning!

[Mick B]

CAVOK simply means no cloud below 5000ft and visibility of 10km or more, with no significant weather present. So yes, it is CAVOK today.
And the METAR confirms this:

YSSY 090100Z 32010KT CAVOK 27/15 Q1015 RMK 1CU080 3AC100 7AC170 NOSIG

[Philip Argy]

Thanks, Mick - I've learned something!

[Philip Argy]

Noted this unusual inclusion in ATIS Charlie this morning:

SIGWX: SIGMET MIKE ECHO 2 5 CURRENT. SEV ICE FCST ABV FL120

Does that suggest hail or just a very cold icing-up environment?

[Mick F]

Just that there's severe airframe icing above FL120. It could be pretty normal temperatures environment wise, but you've got the right moisture conditions sitting at the right levels to cause this severe icing.

Mick

[Sarah C]

YSSY METAR Weather: YSSY 120330Z 10012KT 9999 SCT030 SCT220 25/16 Q1013 RMK LIGHTNING DETECTED 26NM TO SW AND 25NM TO W MOVING ENE AT 10 KNOTS TEMPO 0400/0630 3000 TSRA SCT010 SCT040CB

Lightning on its way. Shaping up as an interesting afternoon ahead.

[Philip Argy]

Haven't noticed that in ATIS before today - is it new or am I just that unobservant?

[Jayden Laing]

It's a new feature to the airport Phillip. Basically it's a stop bar procedure to prevent runway incursions from happening. This link will explain more along with some of Nigel's expertise ;-)

http://www.sydneyairport.com.au/corp...StopBarsFS.pdf

[Philip Argy]

I remember Nigel telling me about it at our Spotters Weekend dinner, but I hadn't realised that implementation had been delayed.

[Bernie P]

We saw it in operation, albeit it on the screens, when we were up in the tower!!