A severe thunderstorm watch was issued by Environment Canada for Guelph on Saturday morning but was cancelled at 6:11 p.m. in the evening.

Thunderstorms are expected to redevelop in the afternoon across most of southern Ontario, the notice said.

The main threats associated with these storms will be strong wind gusts and hail. Some localized flooding is also possible.

Strong wind gusts can toss loose objects, damage weak buildings, break branches off trees and overturn large vehicles. Heavy downpours can cause flash floods and water pooling on roads.

“Lightning kills and injures Canadians every year. Remember, when thunder roars, go indoors,” the release added.

The Office of the Fire Marshal and Emergency Management recommends that residents take cover immediately if threatening weather approaches.