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mobiJetstream Charts
Now using Digital Atmosphere, its a mighty big program to get to grips with
North Atlantic Jetsteam Chart - 250mb Level (34,000 ft / 10,400 m)
North Atlantic Jetsteam Chart - 500mb Level (18,000 ft / 5,600 m)
North Atlantic Jetsteam Chart - 850mb Level (5,000 ft / 1,500 m
What is it
The jet stream is a narrow band of fast flowing air at high altitudes generally flowing from the west to east over the mid-latitudes and are caused by a combination of the planet's rotation on its axis and atmospheric heating (by solar radiation.Jet streams are found at or just below the top of the troposphere, but the term is often wrongly used for all upper-level winds. Usually the jet stream marks the boundary between cold polar air to its north and warmer air to its south (northern hemisphere). The jet stream above the UK is called the Polar Jet Stream, its this Jet stream which is responsible for the UKs weather.
Interesting facts
During the summer the jet stream is usually to the North of the UK allowing high pressure from the atlantic to move in. However during the recent summers of 2007, 2008 and 2009 the jet stream was abnormally low in latitude, which caused the dull wet summers.Meteorologists use the location of some of the jet streams as an aid in weather forecasting. The main commercial relevance of the jet streams is in air travel, as flight time can be dramatically affected by either flying against or with the flow of a jet stream which cuts flight time and saves fuel for the airline industry.
Charts produced by Digital Atmosphere
Big thank you for the Digital Atmosphere Jet Stream script by www.hebwx.co.uk
