216 / 476
206
WINDSHEAR
Whenmoderate, strongor severewind shear has been reportedon the
approach or take-off paths, or has been forecast, the informationwill be
included on theATIS in the following format, eg:
• WINDSHEARWARNING - CESSNA 210 [(wake turbulence category)
CATEGORYAIRCRAFT (ifmilitaryATIS)] REPORTEDMODERATEWIND
SHEARONAPPROACHRUNWAY34AT TIME 0920, (plus, if available,
wind shear advice issued byMET, e.g. FORECASTWINDAT300FEET
ABOVEGROUNDLEVEL 360DEGREES45KNOTS); or
• PROBABLEVERTICALWINDSHEARFROM0415 TO0430 – FORECAST
WINDAT 200 FEETABOVEGROUND LEVEL110DEGREES 50KNOTS.
AERIS
TheAutomatic EnRoute InformationService continuously broadcasts routine
meteorological reports (METAR) from a network of VHF transmitters installed
aroundAustralia.
The information broadcast on the individual transmitters caters primarily for
the needs of aircraft operating in control areaswithinVHF rangeof the facility.
Thenetwork frequencies, the operational information and transmitter
locations are shown on pages 149.
AERODROMEWEATHER INFORMATIONSERVICE (AWIS)
andweatherandterminal InformationRECITER (WATIR)
AWIS andWATIR provide actual weather conditions via telephone and/or
radiobroadcast at specified locations. AWISprovides information from the
AWS only.WATIR combines theAWS informationwith additional terminal
information from the airport operator.
BasicAWS providewind direction and speed, temperature, humidity,
pressure setting and rainfall. AdvancedAWSprovide automated cloud and
visibility. Information provided inAWISwill contain some of the following
information:
• station identifier as a plain language station name
• identifier ‘AWSAERODROMEWEATHER’
in-flight information
2 – f l i ght i nformat i on serv i ce