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Remains of Beryl to deliver a soaking with flood risk to Ontario, Quebec

Remains of Beryl to deliver a soaking with flood risk to Ontario, Quebec
Remains of Beryl to deliver a soaking with flood risk to Ontario, Quebec

اخبار العرب-كندا 24: الثلاثاء 9 يوليو 2024 09:26 مساءً

The remnant moisture associated with the once powerful Hurricane Beryl will make its way north of the border this week.

Rainfall warnings and special weather statements cover most of southern Ontario and Quebec, urging residents of the impacts from the incoming onslaught of moisture.

Check out The Weather Network’s hurricane hub for all the latest on storms near Canada and around the world

The rainfall, heavy at times, nudged its way into extreme southwestern Ontario Tuesday overnight before reaching the Greater Toronto Area (GTA) early Wednesday morning. The moisture will arrive in southern Quebec by Wednesday afternoon.

"Heavy downpours can cause flash floods and water pooling on roads. Localized flooding in low-lying areas is possible," says Environment and Climate Change Canada (ECCC) in the rainfall warning.

Residents are urged to stay on top of the weather warnings, including local flood information.

Southern Ontario and Quebec feels Beryl's remnants on Wednesday and Thursday

The beginnings of the moisture-packed low came through extreme southwestern Ontario Tuesday overnight, and will ramp up Wednesday morning as it rain pushes east. Eastern Ontario and Quebec can expect to see rainfall by early Wednesday afternoon. It will file in from the south, through the Ohio Valley, over Lake Erie, and move northward in waves through Thursday.

Beryl remnant moisture forecast track Ontario and Quebec

Beryl remnant moisture forecast track Ontario and Quebec

RELATED: Tropical Storm Beryl kills two, knocks out power as it churns across Texas

While driven by an upper-level trough, at the surface, the system will send a warm front through southern Ontario and Quebec. Around this front is where we expect to see the heaviest rain fall, as well as the risk of thunderstorms.

The southwestern and eastern shores of Lake Ontario, as well as the eastern shores of Lake Erie and Niagara region, are at greatest risk of seeing severe storms develop.

Baron - Tuesday thunderstorm risk - July 9 (PM update)

Baron - Tuesday thunderstorm risk - July 9 (PM update)

In particular, it is possible that the Niagara region could see some rotating storms in the afternoon.

Between 50-75+ mm of rain is expected across Ontario's Bruce Peninsula, the shores of Lake Huron through to Windsor, and Price Edward County to Cornwall. Across the GTA and through cottage country, and towards Ottawa, between 30-50 mm is expected.

Montreal can expect to see 50-75 mm of rain, with the Eastern Townships picking up between 50-100+ mm.

Baron - ONQC rain - July 9 (PM Update)

Baron - ONQC rain - July 9 (PM Update)

It will be important to stay alert to all weather warnings in your area, including flood outlooks during the duration of the system.

DON'T MISS: Canadian Red Cross launches appeal to help people impacted by Hurricane Beryl

It can be easy to think that southern Ontario and Quebec is going to be struck by a hurricane-force storm when we say that the remnants of Beryl will reach the provinces. We can assure you, though, that is not the case. Hurricanes need warm oceanic water to sustain themselves and will deteriorate rapidly when starved of that fuel.

Baron - Wednesday evening precip - July 9

Baron - Wednesday evening precip - July 9

By the time this system reaches southern Ontario and Quebec, it won't even be a tropical depression by then.

What we will see is a tropical moisture-laden low-pressure system. The main risks presently with this system in Ontario and Quebec will be heavy downpours, the risk of thunderstorms, and localized flooding.

The localized flooding from heavy downpours could also cause a significant amount of storm water runoff to make its way into Lake Ontario, raising the lake's pollution levels.

WPC Excessive rainfall outlook Wednesday

WPC Excessive rainfall outlook Wednesday

This isn't a first for lingering tropical remnants

This isn't the first time Ontario and Quebec has felt the lingering impacts of a tropical system, either.

The hurricane database has 50 cases of remnant storms or tropical depressions moving across southern Ontario since 1876, with only seven of them landfalling in Texas.

Yes, the best track proxy for this setup is Hurricane Ike back in September 2008, a Texas landfalling storm. Of course, Sandy is a prime example of how strong a storm can become once its fully extratropical, occurring in October of 2012.

As well, Hurricane Fran's impacts were felt in southern Ontario in September of 1996 when the then-tropical depression dumped 66.4 mm of rain at Toronto Pearson International Airport.

SEE ALSO: Beware! These dangerous plants are found in Canada

More recently, remnants of Hurricane Isabel dumped more than 30 mm at Pearson airport in September of 2003.

Alberto in May 2018 was also an incredible rarity as the National Hurricane Center kept the storm a tropical depression as it crossed Manitoulin Island on May 31, 2018.

In 2020, Tropical Storm Cristobal made an incredibly rare feat, with tropical remnants crossing Lake Superior on June 10, 2020. The system held onto tropical characteristics into southern Wisconsin.

Stay with The Weather Network for more forecast information and updates on your weather across Ontario and Quebec.

WATCH: Destructive scenes as Hurricane Beryl sets record in the Atlantic

Click here to view the video

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