AMC6 MET.TR.215(i) Forecasts and other information
CLIMATOLOGICAL SUMMARIES
Aerodrome climatological summaries should cover:
(a) frequencies of the occurrence of runway
visual range/visibility and/or height of base of the lowest cloud layer of BKN
or OVC extent below specified values at specified times;
(b) frequencies of visibility below specified
values at specified times;
(c) frequencies of the height of base of the
lowest cloud layer of BKN or OVC extent below specified values at specified
times;
(d) frequencies of occurrence of concurrent
wind direction and speed within specified ranges;
(e) frequencies of surface temperature in
specified ranges of 5°C at specified times; and
(f) mean values and variations therefrom,
including maximum and minimum values of meteorological elements required for
operational planning purposes, including take-off performance calculations.
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