METAR

The letters METAR stand for METeorological Aerodrome Report. METARs contain coded messages pertaining to the actual weather conditions at a given aerodrome, at a stated time. Typical METARs for South Africa aerodromes, extracted from the South African Weather Bureau (SAWB), are shown below. 

METARs are usually issued every half hour during aerodrome operating hours. The aim of this chapter is to explain the METAR coding, group by group. 

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