Environment Canada has issued a severe thunderstorm wacth across Chatham-Kent. This story will be updated as needed. Here are the details:

Conditions are favourable for the development of severe thunderstorms late this afternoon and this evening.

These thunderstorms may be capable of producing strong wind gusts and large hail.

Large hail can damage property and cause injury. Strong wind gusts can toss loose objects, damage weak buildings, break branches off trees and overturn large vehicles. Lightning kills and injures Canadians every year. Remember, when thunder roars, go indoors!

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.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@canada.ca or tweet reports using #ONStorm.

For more information: http://www.emergencymanagementontario.ca/english/beprepared/beprepared.html.