A reported tornado as seen in the sky over Ayton in Grey County on June 17, 2017. (Photo courtesy of Colin Dunkley)

UPDATE: Tornado Warning for Owen Sound Ends

A tornado warning for Owen Sound and northern Grey County has ended.

Forecasters at Environment Canada say that at 6pm Saturday, a severe thunderstorm developed that produced at least one tornado.  A funnel cloud was sighted near Ayton in Grey County shortly after 7pm.  There was no immediate report of a touchdown.

A severe thunderstorm watch remains in effect for most of southwestern Ontario. Damaging winds, large rail and locally heavy rain are all possible.

Keep following BlackburnNews.com for more weather updates.