4 july 2018

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

by Jason Samenow, Washington Post, July 4 2018

(This article, originally published Tuesday, was updated Wednesday to add all-time heat records at Mount Washington, N.H., and Tbilisi, Georgia set since Monday.)

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.

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:

* Denver tied its all-time high-temperature record of 105 degrees on June 28.
* Mount Washington, N.H., tied its all-time warmest low temperature of 60 degrees on July 2.
* Burlington, Vt., set its all-time warmest low temperature ever recorded of 80 degrees on July 2.
* Montreal recorded its highest temperature in recorded history, dating back 147 years, of 97.9 degrees (36.6 Celsius) on July 2. The city also posted its most extreme midnight combination of heat and humidity.
* Ottawa posted its most extreme combination of heat and humidity on July 1.

[Oppressive heat dome engulfs the Northeast β€” and it will spread west this weekend

The dome of high pressure set to develop this weekend over the eastern US is IMPRESSIVE. Current foretasted strength would make this the strongest ridge of high pressure on record for this time of year over the last 30 years.
β€” Greg Porter (@NEWeatherRants) June 28, 2018


Excessive heat torched the British Isles late last week. The stifling heat caused roads and roofs to buckle, the Weather Channel reported, and resulted in multiple record highs:

* Scotland provisionally set its hottest temperature on record. The U.K. Met Office reported Motherwell, about 12 miles southeast of Glasgow, hit 91.8 degrees (33.2 Celsius) on June 28, passing the previous record of (32.9 Celsius) set in August 2003 at Greycrook. Additionally, Glasgow had its hottest day on record, hitting 89.4 degrees (31.9 Celsius).
* In Ireland, on June 28, Shannon hit 89.6 degrees (32 Celsius), its record.
* In Northern Ireland,
-- Belfast hit 85.1 degrees (29.5 Celsius) on June 28, its record.
-- Castlederg hit 86.2 degrees (30.1 Celsius) on June 29, its record

How hot? So hot the Glasgow Science Centre roof is melting a bit πŸ”†πŸ”†πŸ”†
β€” BBC Scotland News (@BBCScotlandNews) June 28, 2018


>>> Back to list