Which option is included in the SPECI criteria?

• A. Wind Direction
• B. Wind Speed
• C. Temperature
• D. All of the above

Answer: (D)

A SPECI is a special aviation weather report issued when weather changes significantly between routine METARs, so pilots and controllers have up-to-date information for safety and planning. It covers the same weather elements that appear in METARs, including wind direction and wind speed, temperature (and dew point), visibility, and cloud and weather phenomena, plus altimeter setting. Changes in wind direction or wind speed directly impact runway winds, approach and takeoff performance, and flight safety. Temperature matters because shifts can alter air density and performance calculations. Since any of these aspects can change enough to affect operations, the SPECI criteria include all of the above. Therefore, selecting all of the above is the best choice.