Tornado warning dropped for Mississauga, Halton Hills and Milton (updated)

There is a severe thunderstorm watch in effect for:

• Mississauga – Brampton
• Caledon
• Halton Hills
• Milton

Tornado warning in effect for:

• Halton Hills
• Milton
• Oakville
• Burlington

UPDATE 3:55 p.m. EDT: Tornado warning has been dropped for Halton Hills, Milton, Oakville, Burlington

The severe thunderstorm watch is still in effect.

At 3:26 p.m. EDT, Environment Canada meteorologists are tracking a severe thunderstorm that is possibly producing a tornado. Damaging winds, large hail and locally intense rainfall are also possible.

The conditions are favourable for the development of severe thunderstorms that may be capable of producing strong wind gusts, heavy rain, 70 to 90 km/h wind gusts and risk of tornado.

The timing for these conditions are starting this afternoon and last throughout the evening.

Thunderstorms are developing across portions of southern Ontario this afternoon. Heavy downpours and wind gusts of 70 to 90 km/h are the main threats. A tornado is also possible.

Strong wind gusts can toss loose objects, damage weak buildings, break branches off trees and overturn large vehicles. Heavy downpours can cause flash floods and water pooling on roads. 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.