Observation stations within the NCM (National Climate Message) station network transmit their observations in the form of a NCM message. National Climate Messages (NCM), produced from all Met Office and many auxiliary stations, are transmitted at the nominal time of 0900 each day and most stations also send an abbreviated message at 2100. The periods of the observations start and end at 10 minutes to the main hour, i.e. HH-10. The NCM message is transmitted from many UK stations, and a few stations outside of the UK (The Falkland Islands, Germany, Antarctica, and Paraguay). The NCM message contains observed elements such as grass minimum temperature, concrete minimum temperature, rainfall accumulation, and depth of fresh snow.