Conditions are favourable for the development of dangerous thunderstorms.
Environment Canada says the weather may be capable of producing damaging wind gusts and damaging hail. Scattered thunderstorms are expected to move eastward across Northeastern Ontario this evening.
Very large hail can damage property, break windows, dent vehicles and cause serious injury. Very strong wind gusts can damage buildings, down trees and blow large vehicles off the road. The weather agency says you have to remember that severe thunderstorms can produce tornadoes.
Severe thunderstorm watches are issued when atmospheric conditions are favourable for the development of thunderstorms that could produce one or more of the following: large hail, damaging winds, torrential rainfall. The Office of the Fire Marshal and Emergency Management recommends that you take cover immediately if threatening weather approaches.
You are also being told to keep cool this week.
A Heat watch is continuing throughout this week according to Environment Canada. A hot and humid airmass is currently in the area. Daytime temperatures in the low to mid thirties are expected, with humidex values in the mid to high thirties. Low temperatures overnight will remain in the high teens to low twenties providing little relief from the heat.
Envirronment Canada says the hot temperatures and high humidity are expected to persist through at least Thursday.