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Proposal for Global TAF Coding Change and Extended Formats by Kevin Johnston

In 2006, during the FPAW presentation by Kevin Johnston, a proposal was put forth to change the Terminal Aerodrome Forecast (TAF) coding globally. This initiative, aimed for implementation by 2009, suggested the addition of a date/time group (DTG) in every line of TAF products, ensuring clarity and consistency. The adjustments would necessitate new software for coding and decoding. Furthermore, a near-term option was introduced for a 24-30 hour TAF-like product at select US airports, known as the Extended TAF (XTF), providing detailed aerodrome forecasts.

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Proposal for Global TAF Coding Change and Extended Formats by Kevin Johnston

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  1. 2006 FPAW The 30 Hour TAF 2006 FPAW Presented by Kevin Johnston

  2. 2006 FPAW • ICAO Proposal: Change current TAF coding for all TAFs world-wide (2009) • Adds date/time group (DTG) in every line of all TAF products (even 9 hour) • Will require software coding/decoding changes • TAF KXYZ 181130Z 18121918 08008KT P6SM SCT070 BKN250 • FM182000 12008KT P6SM BKN150 • TEMPO 18221902 BKN020 • FM190200 15005KT P6SM BKN050 OVC100 • PROB30 19061910 12010KT P6SM FEW005 OVC025 • FM191500 32007KT P6SM SKC

  3. 2006 FPAW • Near-Term option: NOAA/NWS provide a 24-30 hour TAF-like product at select US airports (2007) • Separate six hour extension of current 24 hour TAFs – same coding • Designated XTF (Extended TAF Forecast) • Assigned under the miscellaneous WMO header of FXUS90 KWBC • XTF KXYZ 181130Z 191218 15005KT P6SM BKN050 OVC100 • FM1500 32007KT P6SM SKC

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