{"id":357025,"date":"2026-06-27T04:48:21","date_gmt":"2026-06-26T23:18:21","guid":{"rendered":"https:\/\/ebiztoday.news\/?p=357025"},"modified":"2026-06-27T04:48:21","modified_gmt":"2026-06-26T23:18:21","slug":"an-omega-block-is-behind-europes-heat-wave-can-it-occur-in-canada-national","status":"publish","type":"post","link":"https:\/\/ebiztoday.news\/index.php\/2026\/06\/27\/an-omega-block-is-behind-europes-heat-wave-can-it-occur-in-canada-national\/","title":{"rendered":"An \u2018Omega block\u2019 is behind Europe\u2019s heat wave \u2014 can it occur in Canada? – National"},"content":{"rendered":"

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A deadly heat wave slowly boiling western Europe this month is being driven by a weather pattern often known as an Omega block, which scientists say could turn into more common around the globe \u2014 including in Canada.<\/p>\n

The warmth wave has pushed temperatures as much as 18 C above their seasonal average, based on the Reuters Climate Monitor. Lots of of individuals have died, including at the least 40 in France who’ve drowned while swimming to flee the warmth, based on officials.<\/p>\n

\u201cOver the region studied, this heat wave is essentially the most severe ever recorded,\u201d the World Weather Attribution group of climate scientists said in an evaluation Friday.<\/a><\/p>\n

Here\u2019s what to find out about an Omega block, and whether climate change is responsible.<\/p>\n

An Omega block gets its name from how the pressure systems appear on a weather map, which resembles the Greek letter \u201c\u03a9.\u201d<\/p>\n

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In Europe\u2019s case, a bulge of warmer high pressure has settled over the affected countries, with low pressures on either side of it \u2014 the Atlantic coast to the west, and parts of eastern Europe at the alternative end.<\/p>\n

The hotter air gets stuck or \u201cblocked\u201d inside that structure, versus normal conditions where the jet stream carries weather systems from west to east.<\/p>\n

\u201cSince you\u2019ve got this high pressure system sitting there within the centre, you will have a really stable and really warm air mass since the heat is moved northward into that area,\u201d Gordon McBean, a professor emeritus in weather and environmental studies at Western University, said in an interview.<\/p>\n

\u201cThen it builds up over time.\u201d<\/p>\n

Omega blocks typically last between three and 10 days, but can sometimes persist for weeks.<\/p>\n

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\n\t\t\t\t\tMap showing the forecast maximum temperatures from June 25-27 in Europe.\t\t\t\t<\/span>
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\t\t\t\t\tAssociated Press\t\t\t\t<\/cite>
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\n\t\t\t\tWhat happens during an Omega Block?\t\t\t<\/h2>\n<\/p><\/div>\n

Countries including Spain, France and Germany have been seeing hot and dry conditions. Since the high pressure also suppresses the formation of clouds, there\u2019s been little relief from the sun.<\/p>\n

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France recorded its hottest-ever temperature of 43.8 C within the small southwestern town of Pissos on Wednesday.<\/p>\n

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That day was the most popular day for the complete country on record, based on the Meteo France weather agency, which said the typical temperature measured at 30 French weather stations across day and night reached 30 C\u00a0 for the primary time ever.<\/p>\n

Saarbruecken, a German city near the French border, broke the national temperature record on Friday at 41.3 C.<\/p>\n

Regions within the low-pressure areas flanking the warmth wave, meanwhile, usually tend to see cooler, rainy conditions.<\/p>\n

Britain has been been caught in the midst of the high and low pressure systems, with intense heat within the south and east and cooler temperatures within the north and west, based on the UK Met Office.<\/p>\n

Still, forecasters prolonged a red alert for warmth Friday after the temperature in Suffolk, England, reached 37.3 C, marking the most popular June day the country has ever seen.<\/p>\n

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