IRFP-01
Metro Review
(2) The phrase “TEMPORARILY INOPERATIVE” is added
when the system is inoperative
(3) Ceiling is announced as either “CEILING” or “INDEFINITE
CEILING”
NOTE: All automated ceiling heights are measured
ceilings except indefinite ceilings.
(4) The word “CLEAR” is not used in AWOS due to limitations
in height ranges of the sensors
NOTE: No clouds detected is announced as “NO
CLOUDS BELOW” or “CLEAR BELOW.”
(5) “SKY CONDITION MISSING” is announced only if the
system level is able to report ceiling/sky condition, and the
data is not available
NOTE: Ceiling/sky conditions are not announced if the
system level is not able to report them.
(6) “VISIBILITY LESS THAN ONE QUARTER” is the lowest
visibility reported
NOTE: “VISIBILITY MISSING” is announced only if the
system level is able to report visibility, and the data is not
available. Visibility is not announced if the system level is
not able to report it.
(7) If remarks are included, the word “REMARKS” is
announced after the altimeter setting in the following
priority:
(a) Automated remarks
i)
Density altitude
ii)
Variable visibility
iii) Variable wind direction
(b) Manual remarks (prefaced with “OBSERVER
WEATHER”)
i)
Type and intensity of precipitation
ii)
Direction and intensity of thunderstorms
iii) Obstructions to visibility when 3 miles or less
(8-97) Original
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