These are the 09 UTCUTC Coordinated Universal Time or UTC is the primary time standard by which the world regulates clocks and time. It is within about 1 second of mean solar time (such as UT1) at 0° longitude (at the IERS Reference Meridian as the currently used prime meridian) and is not adjusted for daylight saving time. It is effectively a successor to Greenwich Mean Time (GMT). air temperatures across North America. As well as showing the significant cold outbreak across the Midwest, they also show the disparity in SYNOPSYNOP SYNOP (surface synoptic observations) is a numerical code (called FM-12 by WMO) used for reporting weather observations made by manned and automated weather stations. SYNOP reports are typically mad hourly and consist of groups of numbers (and slashes where data is not available) describing general weather information, such as the temperature, barometric pressure and visibility at a weather station. observation coverage, showing how much greater the MSCMSC The Meteorological Service of Canada (MSC; French: Service météorologique du Canada – SMC) is a division of Environment and Climate Change Canada, which primarily provides public meteorological information and weather forecasts and warnings of severe weather and other environmental hazards. value SYNOP observations than do their American counterparts the NWSNWS National weather service definition, an agency of the National Oceanic and Atmospheric Administration that is responsible for meteorological observations. south of the fiftieth parallel. It could well be that there are many hundred of American SYNOP observations that are never released into the GTSGTS Global Telecommunications System and excluded for some reason known only to themselves. There seems to be a better coverage over the oceans than there is over the land.
