Page 121 - AFMAN 15-111, 12 MAR 2019

100 AFMAN15-111 12 MARCH 2019

Observed Enter in Remarks Section Manual Automated Supplement Back-up
Condition
Remark
Number

(3) Significant Atmospheric Phenomena not Reported O O O

Elsewhere. Present weather observed but not occurring at the
point of observation or in the vicinity (e.g., SHRA OVR
MTNS N).
O O

(4) Aurora observed in the past hour. Include AURBO in
the next METAR and subsequent METARs throughout
period of occurrence.
O
(5) Condensation Trails. Include CONTRAILS to indicate

condensation trails are observed.
O O
(6) Location Unique Information (as required), e.g., fog
dispersal, rawinsonde data, state of ground, wind difference

between parallel runways.
26 Hourly Encode hourly precipitation amount in format, Prrrr, where X O
Precipitation P is the group indicator and rrrr is the water equivalent of all
Amount precipitation that has occurred since the last METAR. The

amount is encoded in hundredths of an inch. For example,
(METAR only) "P0009" would indicate 9/100 of an inch of precipitation fell
in the past hour; "P0000" would indicate that less than 1/100
of an inch of precipitation fell in the past hour. When an

indeterminable amount of precipitation has occurred during
the period, encode Prrrr as P////. Omit the group if no
precipitation occurred since the last METAR.
27 3- and 6-Hour Encode the 3- and 6-hourly precipitation group in format, X X X

Precipitation 6RRRR, where 6 is the group indicator and RRRR is the
Amount amount of precipitation. Report the amount of precipitation