the energy levels in the polar jet, driving it far to the north in Europe and resulting in a prolonged, static high pressure ridge that drove up hot air from the Sahara Desert into Europe. See also Anticyclone Geopotential height Heat dome High-pressure area Ridiculously Resilient Ridge Trough (meteorology) References External links What Is a Greenland Block? – Jim Andrews, Accuweather.com Anticyclones