The culprit behind much of the extreme heat in each case has been large, strong, and
persistent areas of high pressure, which have set up shop over these high latitude locations, keeping cooler weather and precipitation at bay.
Using atmospheric data from the last 35 years, study author Daniel Horton, a Stanford University postdoc, and his colleagues found that
persistent areas of high pressure in certain places were linked with extreme heat waves in Europe, western Asia and eastern North America.
Not exact matches
As the winds travel from
areas of higher pressure to
areas of lower
pressure, a
persistent onshore flow develops over large landmasses in the lower troposphere.