Simulation of maximum temperatures on 3 July 2018 from American (GFS) weather model at two meters above the ground. Graphic: University of Maine Climate Reanalyzer

By Jason Samenow
5 July 2018

(The Washington Post) – From the normally mild summer climes of Ireland, Scotland and Canada to the scorching Middle East, numerous locations in the Northern Hemisphere have witnessed their hottest weather ever recorded over the past week.

Large areas of heat pressure or heat domes scattered around the hemisphere led to the sweltering temperatures. The Canadian Broadcasting Corporation reports the heat is to blame for at least 34 deaths in southern Quebec, mostly in and near Montreal, which endured record high temperatures.

In Northern Siberia, along the coast of the Arctic Ocean – where weather observations are scarce – model analyses showed temperatures soaring 40 degrees above normal on July 5, to over 90 degrees. “It is absolutely incredible and really one of the most intense heat events I’ve ever seen for so far north,” wrote meteorologist Nick Humphrey, who offers more detail on this extraordinary high-latitude hot spell on his blog.

On Thursday, Africa likely witnessed its hottest temperature ever reliably measured. Ouargla, Algeria soared to 124.3 degrees (51.3 Celsius). If verified, it would surpass Africa’s previous highest reliable temperature measurement of 123.3 degrees (50.7 Celsius) set July 13, 1961, in Morocco.

No single record, in isolation, can be attributed to global warming. But collectively, these heat records are consistent with the kind of extremes we expect to see increase in a warming world.

Let’s take a tour around the world of the recent hot-weather milestones.

North America

A massive and intense heat dome has consumed the eastern two-thirds of the United States and southeast Canada since late last week. It’s not only been hot but also exceptionally humid. Here are some of the notable all-time records set:

Red-hot planet: All-time heat records have been set all over the world during the past week

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