Environment Canada is confirming that funnel clouds have been spotted north of the city in the Markham and Unionville area.

They may have briefly touched down in the Highway 407 and Highway 48 area.

Arnold Ashton, from Environment Canada says these clouds are not as strong as the ones that caused major damage to 600 homes in Vaughan on Thursday evening.

"They look a bit scary and so on, but I'd like to emphasize these are nothing like what we had the other night," he said.

"These are not considered tornadoes. These are funnel clouds and they may briefly touch down in seconds and affect a localized area," he said. 

He says the clouds could be "strong enough to bring down branches and move patio furniture, but not the type of thing that will be highly destructive."

He advised that more clouds could form later this evening in the Richmond Hill, and Hamilton and Burlington area.

Environment Canada issued a severe thunderstorm warning for Halton, Peel, and York regions on Saturday evening.