Page 117 - AFMAN 15-111, 12 MAR 2019

98 AFMAN15-111 12 MARCH 2019

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

21 Pressure Rising Include PRESRR (pressure rising rapidly) or PRESFR X X X

or Falling (pressure falling rapidly) when the pressure is rising or
Rapidly falling at a rate of 0.06 iHg per hour or more, totaling a
change 0.02 iHg or more at the time of observation,
22 Sea Level Encode sea-level pressure in format SLPppp, where SLP is X X X

Pressure the remark identifier and ppp is the sea level pressure in
hectopascals. For example, a sea level pressure of 998.2
hectopascals would be encoded as "SLP982." If SLP is not
available, it is encoded as "SLPNO."

23 Aircraft Include the remark ACFT_MSHP [Plain Language] to X X X
Mishap document weather conditions when notified of an aircraft
mishap. The remark is not transmitted. Indicate non-
transmission by enclosing the remark (ACFT_MSHP) in

parentheses in the observation.
24 Snow Include the snow increasing rapidly remark in the next O O
Increasing METAR, whenever the snow depth increases by 1 inch or
Rapidly more in the past hour. Encode the remark in format,

SNINCR_[inches-hour/inches on ground], where SNINCR
is the remark indicator, inches-hour is the depth increase in
the past hour, and inches on ground is the total depth of snow
on the ground at the time of the report. Separate the depth

increase in the past hour from the total depth on the ground
by a slash "/". For example, a snow depth increase of 2
inches in the past hour with a total depth on the ground of 10
inches would be encoded "SNINCR 2/10."