With a TEMPO in a TAFTAF —Terminal Aerodrome Forecast, the maximum period in one instance the weather can last is one hour, and the maximum period in total is half the period of the TEMPO. This makes sense: if it was going to last more than half the TEMPO, it would be better to "reverse" the weathers and have the weather the majority of the time outside the TEMPO.

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In a TEMPO within a TAFTAF —Terminal Aerodrome Forecast, what is the maximum period in any one instance the weather in the TEMPO can last?
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