{"id":7660,"date":"2025-06-23T09:40:14","date_gmt":"2025-06-23T09:40:14","guid":{"rendered":"https:\/\/www.europesays.com\/us\/7660\/"},"modified":"2025-06-23T09:40:14","modified_gmt":"2025-06-23T09:40:14","slug":"heat-dome-over-ontario-and-quebec-triggers-unusual-weather-across-canada","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/us\/7660\/","title":{"rendered":"\u2018Heat dome\u2019 over Ontario and Quebec triggers unusual weather across Canada"},"content":{"rendered":"

Open this photo in gallery:<\/a><\/p>\n

Ontario and Quebec are expected to hit their peak daytime highs on Monday and Tuesday with temperatures rising above 30 C.Tijana Martin\/The Canadian Press<\/p>\n

Blame the heat dome hanging over Ontario and Quebec for some of the strange weather hitting other parts of the country.<\/p>\n

Environment Canada meteorologist Julien Pellerin says scorching temperatures over the eastern part of the continent are causing below-normal temperatures in other regions, which have led to warnings of wet snow and heavy rain in the West.<\/p>\n

\u201cIf you have a heat dome on a sector, you can expect colder air in another sector, so that\u2019s what the Prairies are currently experiencing,\u201d Pellerin said on Sunday.<\/p>\n

\u201cIt\u2019s coming from the United States, a high-pressure system that doesn\u2019t move quickly \u2026 so it brings intense heat and moist air over southern Ontario and southern Quebec and it\u2019ll settle there for the next three days.\u201d<\/p>\n

Yukon wildfires growing rapidly as multiple communities remain on evacuation alert<\/a><\/p>\n

Halifax residents allowed to return home after forest fire prompts evacuations<\/a><\/p>\n

The dangerous temperature levels span from southwestern Ontario towards North Bay, Sudbury and Timmins, while in Quebec the highest temperatures are expected from Montreal to Shawinigan and north up to Abitibi.<\/p>\n

Pellerin says he expects Ontario and Quebec to hit their peak daytime highs on Monday and Tuesday with temperatures rising above 30 C, and the humidex making it feel more like 40 to 45 degrees, depending on the region.<\/p>\n

\u201cIt won\u2019t last very long,\u201d he added. \u201cBy the end of Tuesday and Wednesday, we will have a transition in air mass all over Canada, especially over Quebec and Ontario.\u201d<\/p>\n

Environment Canada warned of possible thunderstorms and tornadoes in northern parts of Ontario on the weekend. A dangerous storm ripped through the Mattawa area in northeastern Ontario late Saturday night, which caused the closure of Highway 17 between Bonfield and Mattawa.\u00a0<\/p>\n

Ontario Provincial Police said in a news release Sunday evening they helped evacuate approximately 290 people from two provincial parks in the area due to the storm, and the neighbouring Municipality of Calvin issued a state of emergency Sunday afternoon, warning residents in a social media post to avoid unnecessary travel due to downed trees, power lines and washouts disrupting local roads.<\/p>\n

Other parts of the country, meantime, are seeing surprises from the heat dome.<\/p>\n

On Saturday, Environment Canada warned that areas in British Columbia could face heavy showers, and over some of the highway summits, the possibility of wet snow.<\/p>\n

Heavy rainfall advisories that had been in effect in southern Alberta were all lifted by Sunday, but the region received significant precipitation. City residents were being warned to stay off the Bow River.<\/p>\n

The Calgary Fire Department advised against boating and all other water activities on the Bow due to higher-than-normal water flow, although the city said flooding over riverbanks was not expected.<\/p>\n

\u201cWe know that Calgarians love their rivers, yet we also know that when our waterways flow this high and fast, there\u2019s significant risk to anyone, regardless of your watercraft or skill level,\u201d Calgary Fire Deputy Chief Pete Steenaerts said in a news release.<\/p>\n

Saskatchewan\u2019s Water Security Agency warned the Alberta rain could also lead to increased flows on the South Saskatchewan River between the Alberta boundary and Lake Diefenbaker.<\/p>\n

The agency said Alberta began dumping water from reservoirs this past week to make room for the additional run-off.<\/p>\n

It expected lake levels at Lake Diefenbaker, a large reservoir northwest of Regina that\u2019s a popular recreation area, to rise over a metre this week as a result of the weather system.<\/p>\n

Heat levels in Ontario and Quebec led Environment Canada to remind people to stay hydrated by drinking water before they\u2019re thirsty, to watch for early signs of heat exhaustion and not overexert themselves.<\/p>\n

\u201cBe careful; you know yourself,\u201d Pellerin said.<\/p>\n

\u201cMake sure you\u2019re aware of what you\u2019re feeling and take breaks, Make sure you have a location where you can rest with the air conditioning.\u201d<\/p>\n

In Quebec, schools are being urged to stay vigilant with the rising temperatures.<\/p>\n

In a letter from the assistant deputy education minister, schools were encouraged to \u201cput in place all the preventive measures you judge necessary to ensure everyone\u2019s security.\u201d<\/p>\n

\u201cDepending on the situation, these measures could go all the way up to closing one or more schools for the day of June 23,\u201d said the message signed by Stephanie Vachon.<\/p>\n","protected":false},"excerpt":{"rendered":"Open this photo in gallery: Ontario and Quebec are expected to hit their peak daytime highs on Monday…\n","protected":false},"author":3,"featured_media":7661,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[2148,2138,671,104,2132,692,2147,2131,2143,2144,2140,2133,2130,79,407,746,2142,2137,2159,2134,2135,454,2139,1165,728,2149,108,2154,2155,50,2157,2152,2156,2150,2153,2136,85,2146,80,2145,2151,1458,158,1164,2141,1154,107,2158],"class_list":{"0":"post-7660","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-news","8":"tag-alberta","9":"tag-arts-news","10":"tag-bc","11":"tag-breaking-news","12":"tag-breaking-news-video","13":"tag-british-columbia","14":"tag-canada","15":"tag-canada-news","16":"tag-canada-sports","17":"tag-canada-sports-news","18":"tag-canada-trafficcanada-weather","19":"tag-canadian-breaking-news","20":"tag-canadian-news","21":"tag-economy","22":"tag-education","23":"tag-environment","24":"tag-federal-government","25":"tag-foreign-news","26":"tag-globe-and-mail","27":"tag-globe-and-mail-breaking-news","28":"tag-globe-and-mail-canada-news","29":"tag-government","30":"tag-life-news","31":"tag-lifestyle","32":"tag-local-news","33":"tag-manitoba","34":"tag-national-news","35":"tag-new-brunswick","36":"tag-newfoundland-and-labrador","37":"tag-news","38":"tag-northwest-territories","39":"tag-nova-scotia","40":"tag-nunavut","41":"tag-ontario","42":"tag-pei","43":"tag-photos","44":"tag-political-news","45":"tag-political-opinion","46":"tag-politics","47":"tag-politics-news","48":"tag-quebec","49":"tag-sports-news","50":"tag-technology","51":"tag-travel","52":"tag-trudeau","53":"tag-us-news","54":"tag-world-news","55":"tag-yukon"},"share_on_mastodon":{"url":"","error":"Validation failed: Text character limit of 500 exceeded"},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/us\/wp-json\/wp\/v2\/posts\/7660","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/us\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/us\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/us\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/us\/wp-json\/wp\/v2\/comments?post=7660"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/us\/wp-json\/wp\/v2\/posts\/7660\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/us\/wp-json\/wp\/v2\/media\/7661"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/us\/wp-json\/wp\/v2\/media?parent=7660"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/us\/wp-json\/wp\/v2\/categories?post=7660"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/us\/wp-json\/wp\/v2\/tags?post=7660"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}