Trend Review − TAF3 Implementation

The Bureau of Meteorology undertook an industry requested review of its Trend Forecast (TTF) services for the aviation industry between 2012-14; with a final report issued in 2016. In undertaking this review, the Bureau extensively consulted with the aviation industry and the Australian Defence Force through regular consultative meetings and various industry forums to investigate feasible alternative options to TTF that met International Civil Aviation Organization (ICAO) standards. During the review, it was also necessary to establish a subject matter expert working group to resolve specific tasks.

The major airports affected by this review are Sydney, Melbourne, Brisbane, Perth, Adelaide, Gold Coast, Cairns, Canberra, Darwin and Hobart. The Defence aerodromes affected are those with a current TTF service.

The key recommendation from the review was that the TTF service be ceased and that, where appropriate, the TAF be issued routinely every three-hours instead of every six-hours. In addition, the TAF should be amended to provide similar responsiveness, accuracy and operational meteorological information as the current TTF; this highly responsive TAF will be known in Australia as TAF3. However, due to updates to CASA’s Part 91, resources have not been available to implement the change.

A TAF3 Implementation Working Group (TIWG) consisting of a representative group of aviation stakeholders has been formed and is coordinating activities to ensure a smooth transition to a TAF3 service at all current TTF locations plus Gold Coast and Hobart airports. The target implementation date is 5 November 2020. The key role of the TIWG is to manage and coordinate activities to resolve identified issues associated with the replacement of TTF with TAF3. In developing solutions for the implementation phase, the TIWG will specifically:

  • Develop an implementation plan that ensures the necessary changes are made in a safe and efficient manner;
  • Review rule changes through CASA's Summary of Proposed Change (SPC) process that would provide similar operational efficiencies to current flight planning practices;
  • Develop and implement an agreed communication and education plan;
  • Update all relevant documentation; and
  • Resolve other implementation issues identified.

Please refer to the following documents for more information on the Trend Review and TAF3 Implementation.

TAF3 FAQ (141 KB) − updated 11 March 2020

VOLMET AERIS Business Rules - DRAFT (351 KB) − updated 21 April 2020

Trend Review Final Report (1400 KB) − updated 10 October 2016

Risk Assessment (300 KB) − updated 4 December 2015

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