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What's behind a Terminal Aerodrome Forecast (TAF) amendment?

Updated: Oct 24, 2022

Most of the official weather forecasts you will get on a standard briefing or via your favorite app are issued by aviation meteorologists located at the Aviation Weather Center (AWC) in Kansas City, Missouri. This includes G-AIRMETs, SIGMETs (WS) and convective SIGMETs (WST). Terminal Aerodrome Forecasts or TAFs, however, are not issued by the AWC nor are they issued by Flight Service; they are issued by your local NWS Weather Forecast Offices (WFO). The meteorologists at the local WFO are very familiar with any local weather effects and have the best opportunity to produce a quality forecast. Pictured to the right is the WFO in Greer, South Carolina (KGSP). Click here to see a map of the local WFOs.

Your local WFO typically has the responsibility for issuing the TAFs for 6 or 7 terminal areas. At the Greenville-Spartanburg WFO, for example, they issue the terminal forecasts for six airports to include KAND, KGSP, KGMU, KCLT, KHKY and KAVL as shown in the image below.