Environment Canada are tracking a severe thunderstorm that could produce a tornado.
They say that damaging winds with winds gusting up to 100 km/h, large hail and locally intense rainfall are possible.
This tornado warning has been issued for Halton Hills and surrounding area, Georgetown, Brampton and Mississauga.
They report that a line of thunderstorms in the area may result in a tornado in the Georgetown area, these thunderstorms are moving east at 70 km/h.
