Environment Canada has issued a special weather statement for Niagara.
The agency warns that around 1:10 this afternoon, weather radar indicated an isolated thunderstorm near Chippawa, with a potential of becoming severe.
The thunderstorm is slowly moving east at about 20 km/hr.
Environment Canada warns that winds up to 70 km/hr may occur, as well as local heavy downpours and hail about 1-2 cm in size.
The region also remains under a heat warning, with today's high expected to hit 40 degrees.
A cold front is on the way tonight, and it's expected to bring showers and thunderstorms.

Moyer Farms Making $12M Investment
Niagara Falls Going Green for St. Patrick's Day
St. Catharines RIDE Campaign
Davies Challenges Gov't on EV Support
Welland's Plan for Hospital Contribution
New GO Station Coming to Niagara
Most Serious Collisions in Summer: Region
Coach Service Added to Airport