‘Heat dome’ to bring near-record warmth

The Commercial Appeal - - Viewpoint -

USA TODAY

Sum­mer­like warmth will surge back across the Mid­west and North­east dur­ing the first week of Oc­to­ber as high tem­per­a­tures soar well into the 80s.

Some record-high tem­per­a­tures may be chal­lenged, Ac­cuWeather said. High tem­per­a­tures should be up to 20 de­grees above av­er­age from the mid-Mis­sis­sippi Val­ley into the Great Lakes and the in­te­rior North­east.

That warmth will spread to much of the East Coast later in the week

The warmth will be courtesy of a “heat dome,” which fea­tures a sprawl­ing area of high pres­sure about 20,000 feet high in the at­mos­phere, ac­cord­ing to the Cap­i­tal Weather Gang. Un­der the dome, air sinks, gets com­pressed and, ul­ti­mately, warms the ground.

Guy Wal­ton, a for­mer Weather Chan­nel me­te­o­rol­o­gist, called the weather pat­tern “warm, weird and spooky.”

For­tu­nately, when com­pared with the heat wave from late Septem­ber, this one should not be as hot be­cause the sun’s in­ten­sity con­tin­ues to de­crease as it sinks lower in the sky each day.

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