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AMC3 MET.TR.205(d) Reporting of meteorological elements

ED Decision 2022/004/R

PRESENT WEATHER PHENOMENA — UNIDENTIFIED PRECIPITATION (UP)

In automated local routine report, local special report, METAR and SPECI, in addition to drizzle (DZ), rain (RA) and snow (SN), the abbreviation ‘UP’ should be used for unidentified precipitation when the type of precipitation cannot be identified by the automatic observing system.