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Aerographers Mate, Module 01-Surface Weather Observations | Next
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World Meteorological Organization.
Region IV
METAR, SPECI Land Synoptic, Ship Synoptic.
NAVMETOCCOMINST 3141.2.
NAVMETOCCOMINST 3144.1.
Annotate missing data with an "M, " and provide a brief explanation for missing
data in Block 72 "Remarks, Notes, and Miscellaneous Data."
Safety of aircraft, ships, and personnel.
Line out the error, enter the correction in red, and annotate the time the corrected
observation was transmitted.
FNMOD, Asheville, North Carolina.
There are two types of observations in the METAR code, METAR and SPECI.
The observation type, the station identifier, the observation date/time, and if
required, a report modifier.
180105G120KT.
12015KT 090V150.
The surface visibility in statute miles.
RO2L/1000V3000FT.
Mist.
VCSH.
Well-developed dust/sand whirls.
SCT025CB.
SCTOOO.
In the case of a total obscuration with an indefinite ceiling, with hshshs as the
vertical visibility into the indefinite ceiling.
M04.
Sea-level pressure (SLPppp).
3-19
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