Northern hemisphere weather map. Home monitoring and data us. Climate data snow cover northern hemisphere snow cover. The northern hemisphere is the half of earth that is north of the equator. Operational weekly snow cover graphics.
Wind is caused by air flowing from high pressure to low pressure. Home monitoring and data oceanic atmospheric data northern hemisphere teleconnection patterns tropical northern hemisphere tnh. All weekly snow cover products produced after may 31 1999 are to be considered experimental. Since the earth is rotating however the air does not flow directly from high to low pressure but it is deflected to the right in the northern hemisphere.
To the left in the southern hemisphere so that the wind flows mostly around the high and low. Since 1966 the national oceanic and atmospheric administration noaa has produced weekly snow extent maps for northern hemisphere land surfaces using visible band satellite imagery robinson and frei 2000 rutgers 2017. For example high pressure h areas will have clear skies while low pressure l areas can be stormy. Bureau home tropical cyclones previous cyclones southern hemisphere tropical cyclone data portal.
For other planets in the solar system north is defined as being in the same celestial hemisphere relative to the invariable plane of the solar system as earths north pole. With warnings about the fukushima disaster getting more dire every day many are wondering how they can avoid the inevitable radioactive fallout should things worsen in japan. During the past four decades satellite remote sensing has provided valuable information on hemispheric scale snow extent. The extent has decreased in every season and is most rapid in summer and autumn.
Images provided by the california regional weather server sponsored by the department of earth climate sciences at san francisco state university.