Severe thunderstorm warning issued for Hamilton, parts of Halton

Environment Canada has issued a severe thunderstorm warning for Hamilton and parts of Halton. Nearby areas can also expect rainfall and gusts up to 70 km/h.

'Remember, when thunder roars, go indoors,' weather agency says

A thunderstorm rolls over Hamilton, Ont. (Dan Taekema/CBC)

Environment Canada has issued a severe thunderstorm warning for Hamilton and Burlington.

The weather agency said rainfall amounts of 50 mm in an hour or less are possible, as a cluster of severe thunderstorms near Campbellville moves southeast.

Areas that could be impacted include Burlington, Dundas, Waterdown, Stoney Creek, Carlisle and Bronte Creek Provincial Park.

The warning states that heavy downpours can cause flash floods and water pooling on roads. 

Environment Canada is reminding people that if visibility is reduced while driving they should slow down, watch for tail lights ahead and be prepared to stop.

"Rapidly rising rivers and creeks can sweep away bridges, culverts, buildings, and people. Lightning kills and injures Canadians every year," the warning reads. "Remember, when thunder roars, go indoors!"

Gusts of wind, rain in surrounding areas 

A special weather statement is also in effect for the following nearby areas:

  • Niagara Falls - Welland - Southern Niagara Region.
  • St. Catharines - Grimsby - Northern Niagara Region.
  • Dunnville - Caledonia - Haldimand.
  • Brantford - County of Brant.
  • Woodstock - Tillsonburg - Oxford County. 

Environment Canada said isolated thunderstorms are moving slowly across the region and will contain "brief, very heavy downpours."

Local rainfall amounts of 20 to 40 mm in an hour or less are possible along with gusts to 70 km/h.

The showers and isolated thunderstorms are expected to end this evening.


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