Past weather
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- Past weather Predominant characteristic of the weather which had existed at an observing station during a given period of time (during the preceding hour or six hours), specified in the international SYNOP code.
NSIDC - Cite This Source - This Definition - analysis, Pressure tendency, Synoptic analysis, Synoptic chart, Synoptic code, Synoptic hour, Synoptic meteorology, Synoptic weather observation