GM1 MET.OR.200(b) Meteorological
reports and other information
ED Decision 2022/004/R
DISSEMINATION OF SPECI
SPECI representing a deterioration of meteorological conditions should be disseminated immediately after the observation.
SPECI representing a deterioration of one weather element and an improvement in another weather element should also be disseminated immediately after the observation and should then be treated as deterioration reports.
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