weather servicesFAA-published sample question (IRA, Aug 2021)
When the visibility is greater than 6 SM on a TAF, it is
A
expressed as 6PSM.
B
expressed as P6SM.✓ Correct Answer
C
omitted from the report.
Explanation
In a U.S. TAF, a forecast visibility greater than 6 statute miles is encoded as P6SM, 'P' meaning 'plus' (Aviation Weather Handbook 27.3.2.6; AIM 7-1-28). The visibility group is not omitted, and '6PSM' is not a valid format.
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