[robair]

Gday All

Weather report below for the Thursday crew, hope you beat the southerly and the storms.

General MET Briefing
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2128 UTC 11/11/09 AIRSERVICES AUSTRALIA
GENERAL MET MESSAGE BRIEFING



Prepared for: ROBFLIGHT

YSSY
SYDNEY AIRPORT WEATHER BRIEFING
ISSUED AT 1709Z ON THE 11/11/2009 [0409 ON THE 12/11/2009 LOCAL]

SYDNEY TAF: (THIS TAF MAY NOT BE THE LATEST ISSUE)
TAF AMD YSSY 111643Z 1118/1224
31008KT 9999 FEW025
FM112300 04015KT 9999 FEW035
FM120700 18020KT 9999 FEW012 SCT020
FM121200 18015KT 9999 SCT020 BKN035
RMK
T 17 20 26 28 Q 1019 1020 1018 1015


TAF SUMMARY:
A HIGH IN THE TASMAN SEA IS DIRECTING A NORTHERLY FLOW OVER SYDNEY,
WHILST A LOW PRESSURE TROUGH LIES OVER INLAND NSW. WINDS AT THE
AIRPORT WILL BE LIGHT NORTHWEST AT FIRST, TENDING NORTHEAST LATER IN
THE MORNING. THE LOW PRESSURE TROUGH WILL REACH THE NSW SOUTH COAST
TODAY, AND WILL MOVE NORTH, BRINGING A FRESH SOUTHERLY CHANGE TO THE
AIRPORT TOWARDS EVENING. SOME THUNDERSTORMS ARE EXPECTED TO DEVELOP
ALONG THE RANGE TO THE WEST THIS AFTERNOON, AND THERE IS THE CHANCE
OF A FEW REACHING THE COAST.

THUNDERSTORM POTENTIAL:
CHANCE WITHIN 20NM OF SYDNEY AIRPORT THIS AFTERNOON AND EVENING,
MOSTLY IN THE WEST.

OTHER POSSIBILITIES:
20% CHANCE WIND WILL SHIFT TO THE E/SE A FEW HOURS BEFORE THE
SOUTHERLY ARRIVES.
30% CHANCE S'LY CHANGE WILL HAVE WIND GUSTS TO 30 KNOTS INITIALLY.
20% CHANCE OF WIND GUSTS GREATER THAN 20 KNOTS AFTER 12Z.
30% CHANCE OF A SHOWER OR TWO TOMORROW MORNING.

SYDNEY OUTLOOK:
FRIDAY : CHANCE MORNING SHOWER. CITY MAX: 23
SATURDAY : FINE. MOSTLY SUNNY. CITY MAX: 27

REGARDS
TAD UNTIL 7AM, THEN LILY.

NOTES:
1. THIS BRIEFING IS NOT AMENDED BETWEEN ROUTINE ISSUES. FOR
OPERATIONAL PLANNING, REFERENCE SHOULD BE MADE TO THE LATEST TAF OR
TTF.



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