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Instructor » Met Decoding » TREND



A TREND is a landing forecast in the form of a concise statement appended to a METAR, SPECI or METAR AUTO.

The TREND describes any significant changes expected in the following two hours to the conditions described in the report. 

It is important to note that a TREND forecast shall supersede, during the validity of the TREND, the aerodrome forecast (TAF) for the aerodrome concerned.

During a short-lived, unforecast weather event, it is not uncommon that the TREND will reflect the expected evolution of the weather event, while the TAF will remain unchanged.

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