In a TEMPO group, the forecast represents temporary variations lasting how long?

In a TEMPO group, the forecast represents temporary variations lasting how long?

• A. 5 minutes
• B. 15 minutes to 30 minutes
• C. 30 minutes to 60 minutes
• D. 60 minutes to 120 minutes

Answer: (C)

In aviation weather forecasts, a TEMPO group signals temporary changes from the prevailing conditions that are expected to last for a limited time. Those temporary fluctuations are typically on the order of half an hour to about an hour. That’s why the option spanning 30 minutes to 60 minutes is the best fit. Shorter durations, like 5 minutes, are too brief to be described as TEMPO, and longer ones (60–120 minutes) would exceed the usual TEMPO window and fall under a different forecast category. So the forecasted temporary variations are expected to last roughly 30 to 60 minutes.

In aviation weather forecasts, a TEMPO group signals temporary changes from the prevailing conditions that are expected to last for a limited time. Those temporary fluctuations are typically on the order of half an hour to about an hour. That’s why the option spanning 30 minutes to 60 minutes is the best fit. Shorter durations, like 5 minutes, are too brief to be described as TEMPO, and longer ones (60–120 minutes) would exceed the usual TEMPO window and fall under a different forecast category. So the forecasted temporary variations are expected to last roughly 30 to 60 minutes.