A thunderstorm over Hillman Marsh, August 27, 2016. (Photo courtesy of Robert Longphee)

UPDATE: Severe Thunderstorm Watch Ends

A severe thunderstorm watch posted for Sarnia-Lambton early Friday afternoon has now ended.

Forecasters say conditions were favourable for the development of severe thunderstorms that were capable of producing strong wind gusts, large hail and heavy rain.

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