Outages, flooding reported across GTA as thunderstorms roll through. Live updates here

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Toronto remains under a severe thunderstorm watch after Environment Canada lifted a series of thunderstorm warnings that had been issued earlier Thursday afternoon.

The national weather agency says conditions remain favourable for the development of severe thunderstorms capable of producing strong wind gusts, heavy rainfall and frequent lightning across Toronto and much of the Greater Toronto and Hamilton Area.

• Your hourly and 7-day forecast on our CP24.com weather hub

Environment Canada says localized rainfall amounts of more than 60 millimetres and wind gusts reaching 90 km/h are still possible through the rest of the afternoon and into the early evening.

The agency warns that some areas could receive higher rainfall totals if multiple thunderstorms move over the same location.

Residents are urged to monitor weather alerts, seek shelter if threatening weather develops, avoid driving through flooded roadways and secure loose outdoor objects.

Follow along for live updates:

4:00 p.m. – Road closure near Dundas, Ont.

Provincial police are warning drivers of a road closure on Highway 5, between Highway 8 and Middletown Road near Dundas, Ont., due to a downed tree and hydro wires.

Police are asking drivers to avoid the area at this time and consider alternate routes.

- Alex Arsenych, CTVNewsToronto.ca journalist

3:55 p.m. – Flooding reported on roadways, sidewalks in downtown Toronto

Toronto police are advising motorists to use alternate routes after reports of flooding on the roadway and sidewalk in the downtown core.

In a post on X made just before 3:30 p.m., police say the flooding is affecting the area of Simcoe Street and Front Street West.

No injuries have been reported.

Currently, Simcoe Street is closed between Front Street West and Bremner Boulevard.

- Joanna Lavoie, CP24.com Journalist

3:52 p.m. - Rounds of showers and storms still possible in GTA

A severe thunderstorm warning has now ended for the city of Toronto, but rounds of showers and storms are still possible through the late afternoon and early evening. A severe thunderstorm watch remains in place.

The biggest threats with these kinds of storms are heavy downpours and strong winds, although there has also been frequent lightning. There have been reports of power outages and downed trees in parts of the GTA.

Conditions have been ripe for the development of storms today with our hot, humid airmass and a cold front slicing through.

Strong thunderstorms are now tracking into Niagara region, with areas like St. Catharines, Welland, Fort Erie and Cayuga all in the path.

-Lyndsay Morrison, CTV News Toronto weather anchor

3:50 p.m. - Power outages impacting parts of Burlington, Milton

There are roughly 8,000 customers in Milton experiencing power outages at this time, according to the local hydro company.

Milton Hydro says crews are working to remove branches and trees, and repair lines to restore power to homes. At this time they anticipate, power will be restored at around 8 p.m.

Burlington Hydro says it is also aware of several outages across the city as a result of Thursday’s storm, adding that crews are assessing the damage and working to restore power “safely and quickly.”

- Alex Arsenych, CTVNewsToronto.ca journalist

3:45 p.m. - High winds down trees on roadways in Halton Region

Police in Halton Region say they’ve received multiple calls for downed trees on roadways throughout the area “due to high winds.”

As a result, they’re urging drivers to “exercise caution” this afternoon and evening and stay home, if possible,

- Joanna Lavoie, CP24.com Journalist