{"id":97089,"date":"2026-06-20T22:30:06","date_gmt":"2026-06-20T22:30:06","guid":{"rendered":"https:\/\/www.europesays.com\/canada\/97089\/"},"modified":"2026-06-20T22:30:06","modified_gmt":"2026-06-20T22:30:06","slug":"strong-thunderstorms-produce-flash-flooding-in-parts-of-montreal-and-south-shore-suburban-weather","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/canada\/97089\/","title":{"rendered":"Strong thunderstorms produce flash flooding in parts of Montreal and South Shore | Suburban Weather"},"content":{"rendered":"<p>Orange Weather Warning for the West Island of Montreal for flash flooding due to strong thunderstorms. Conditions should improve this evening.<\/p>\n<p>Rainfall amounts have now exceeded 100mm in several locations in the region. Flash flooding is occurring, including reports of several homes with water in them on the West Island.<\/p>\n<p>Severe Thunderstorm watches and warnings are in effect for southwestern Quebec including metro Montreal through this evening.<\/p>\n<p>Strong thunderstorms with torrential rain, frequent lightning and hail will continue to impact parts of west end Montreal and the South Shore through sunset Saturday. Flash flooding has been occurring in several regions including Pierrefonds and Saint Constant.<\/p>\n<p>Over 38mm of rain has fallen at Trudeau Airport in the last couple of hours, with just a trace here on Ile Perrot as the storms remain east of my location.<\/p>\n<p>                        <img loading=\"lazy\" decoding=\"async\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAADCAQAAAAe\/WZNAAAAEElEQVR42mM8U88ABowYDABAxQPltt5zqAAAAABJRU5ErkJggg==\" alt=\"Strong thunderstorms produce flash flooding in parts of Montreal and South Shore\" class=\"img-responsive lazyload full white\" width=\"1152\" height=\"683\" data- data-\/><\/p>\n<p>Flash flooding in Saint Constant form heavy thunderstorms Saturday afternoon.<\/p>\n<p>                                    Meteo Media<\/p>\n<p>Strong thunderstorms have been moving southeast across portions of Laval, through Pierrefonds, Dorval and central portions of the Island of Montreal and onto the South Shore Saturday afternoon, producing widespread lightning and torrential rainfall. Radar estimates and reports form local weather stations are indicating anywhere from 30mm to as much as 100mm has fallen in the last several hours.<\/p>\n<p>The storms are training over the same region. Flooding has been reported in Pierrefonds and well as on the South Shore in La Prairie and Saint Constant. Several roads have been inundated, while others have significant water accumulations.<\/p>\n<p>Radar is showing more storms developing over the lower Laurentians moving into the Montreal region. Remain vigilant this evening especially after dark. Do not attempt to cross flooded roadways.<\/p>\n<p>                        <img loading=\"lazy\" decoding=\"async\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAADCAQAAAAe\/WZNAAAAEElEQVR42mM8U88ABowYDABAxQPltt5zqAAAAABJRU5ErkJggg==\" alt=\"Strong thunderstorms produce flash flooding in parts of Montreal and South Shore\" class=\"img-responsive lazyload full white\" width=\"700\" height=\"423\" data- data-\/><\/p>\n<p>Radar shows a plume of thunderstorms extending from Laval onto the South Shore. They have been dumping torrential rainfall over the same sections of the city, with 30mm to as much as 100mm falling just in the last few hours.<\/p>\n<p>Hydro-Quebec is reporting outages to just over 9000 customers at 5:40PM<\/p>\n<p>The showers and storms should weaken after sunset, but more are expected on Sunday. The culprit is strong low pressure over Atlantic Canada sending disturbances in the atmosphere pinwheeling into our region. Conditions should improve Sunday night.\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"Orange Weather Warning for the West Island of Montreal for flash flooding due to strong thunderstorms. Conditions should&hellip;\n","protected":false},"author":2,"featured_media":97090,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[4059,4054,8614,8609,28926,4050,35792,4042,13748,50,4045,4047,1554,8615,26543,58,4056,35791,8610,3620,8613,3664,4058,4053,8608,8611,4048,55,4046,33154],"class_list":["post-97089","post","type-post","status-publish","format-standard","has-post-thumbnail","category-montreal","tag-atlantic-hurricane-seasons","tag-atlantic-hurricanes","tag-atmospheric-circulation","tag-branches-of-meteorology","tag-climate-of-north-america","tag-climate-of-the-united-states","tag-flash-flood","tag-flood","tag-island-of-montreal","tag-montreal","tag-natural-disasters","tag-natural-events","tag-natural-hazards","tag-pacific-hurricanes","tag-radar","tag-rain","tag-seasons","tag-south-shore-montreal","tag-storm","tag-storms","tag-synoptic-meteorology-and-weather","tag-thunderstorm","tag-tropical-cyclone-seasons","tag-tropical-cyclones","tag-tropical-meteorology","tag-tropics","tag-vortices","tag-weather","tag-weather-events","tag-weather-hazards"],"_links":{"self":[{"href":"https:\/\/www.europesays.com\/canada\/wp-json\/wp\/v2\/posts\/97089","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/canada\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/canada\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/canada\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/canada\/wp-json\/wp\/v2\/comments?post=97089"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/canada\/wp-json\/wp\/v2\/posts\/97089\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/canada\/wp-json\/wp\/v2\/media\/97090"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/canada\/wp-json\/wp\/v2\/media?parent=97089"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/canada\/wp-json\/wp\/v2\/categories?post=97089"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/canada\/wp-json\/wp\/v2\/tags?post=97089"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}