Table 3-6.PIREP Coded Text Element Indicators and Examples of Entries
T E I
MEANING
EXAMPLE
DECODED MESSAGE
/OV
OVer location
/OV KNGU
directly over KNGU
/OV KNGU 120035
120° (magnetic) from KNGU at 35 nmi
/TM
TiMe (UTC)
/TM 1135
phenomena occured at 1135Z
/FL
Flight Level
/ F L 1 2 0
aircraft flying at 12,000 feet (MSL)
/ T P
aircraft TyPe
/TP F16
reported by an F-16
/TP C5
reported by a C-5
/ S K
SKy cover
/SK SCT030-060
scattered cloud layer bases 3,000 ft, tops 6,000
ft (MSL)
/SK OVC065-UNKN
in overcast layer, bases 6,500 ft (MSL), tops
unknown
/WX
Weather
/WX FV02SM TSRA GR
FL visibility 02 statute miles, in thunderstorm
with rain and hail
/WX FV99SM
FL visibility unrestricted
/TA
Temperature (outside Air) /TA 01
outside air temperature 1°C
/TA M10
outside air temperature -10°C
/WV
Wind dir/spd
/WV 09060KT
wind from 090°(true) at 60 knots
/ T B
TurBulence
/TB NEG BLO 080
forecast turbulence not present below 8,000 ft
/TB MOD 120-180
turbulance moderate 12,000 to 18,000 ft
/TB MOD-SEV CAT
clear air turbulence moderate to severe (at
flight level)
/ I C
ICing
/IC MOD RIME 035-075
moderate rime icing 3,500 to 7,500 ft
/RM
ReMark
/RM WATERSPOUT
waterspout sighted, moving east-northeast
M O V E N E
Weather elements reported after the "/WX" TEI
should conform to the METAR Surface Meteorological
Observation code. No more than three weather groups
should be reported in a single PIREP. Consult the latest
NAVMETOCCOMINST 3142.1 for detailed
descriptions and permissible entries for each TEI.
TRANSMITTING PIREPS
When two or more PIREPS are received
reporting essentially the same information for
the same area, only the most recent is sent out.
PIREPs are not disseminated locally if
essentially the same information has been sent
out in the past 30 minutes.
A PIREP is not disseminated if it reports only
sky conditions that have already been reported in
a METAR or SPECI observation.
Nearly all PIREPs received should be encoded and
disseminated both locally and via electronic circuits to
central data collection centers, The only PIREPs not
disseminated are as follows:
Normally, all PIREPs are prefixed with the
message header UA. When sent out in a collective,
which is several PIREPs sent out in a group, the UA
header is included only as a group header, not on the
individual reports.
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