Synoptic station

From Glossary of Meteorology

synoptic station

A station at which meteorological observations are made for the purposes of synoptic analysis.

The observations are made at the main synoptic times of 0000, 0600, 1200, 1800 UTC and normally at the intermediate synoptic hours of 0300, 0900, 1500, 2100 UTC and are entered into a coded format for dissemination.