Synoptic weather stations are instruments which collect meteorological information at synoptic time 00h00, 06h00, 12h00, 18h00 (UTC) and at intermediate synoptic hours 03h00, 09h00, 15h00, 21h00 (UTC). The common instruments of measure are anemometer, wind vane, pressure sensor, thermometer, hygrometer, and rain gauge. The weather measures are formatted in special format and transmit to WMO to help the weather forecast model. Networks Global A variety of land-based weather station networks have been set up globally. Some of these are basic to analyzing weather fronts and pressure systems, such as the synoptic observation network, while others are more regional in nature, known as mesonets. Citizen Weather Observer Program (CWOP) Weather Underground Personal Weather Stations United States Arizona Meteorological Network (AZMET) Central Pennsylvania Volunteer Weather Station Network Florida Automated Weather Network (FAWN) Georgia Environmental Monitorin...