Severe Thunderstorm Warning Severe Weather Bulletin issued by Environment Canada at 6:11 PM EDT Thursday 15 March 2012.((Ontario,Canada))

- Watches/warnings in effect for southern Ontario... Severe Thunderstorm Warning for: =new= Bancroft - Hastings Highlands - Denbigh. A severe thunderstorm has developed over the area. This storm is capable of producing ping pong Ball size hail and local torrential downpours until 7:00 PM EDT. Monitor weather conditions and take immediate safety precautions if threatening weather approaches. Severe Thunderstorm Watch for: City of Toronto Chatham-Kent - rondeau park Sarnia - Lambton Elgin London - Middlesex Simcoe - Delhi - Norfolk Dunnville - Caledonia - Haldimand Oxford - Brant City of Hamilton Halton - Peel Vaughan - Richmond Hill - Markham Newmarket - Georgina - Northern York Region Uxbridge - Beaverton - Northern Durham Region Huron - Perth Waterloo - Wellington Dufferin - Innisfil Bancroft - Hastings Highlands - Denbigh Haliburton Renfrew - Pembroke - Barry's Bay Algonquin. Conditions are favourable for severe thunderstorms to redevelop over the areas this evening. The main threats are torrential downpours, hail up to toonie size and intense lightning. This is an alert to the potential development of severe thunderstorms with large hail, damaging winds or heavy rainfall..monitor weather conditions and listen for updated bulletins. Tornado Watch for: Windsor - Leamington - Essex County. A severe thunderstorm from lower Michigan is moving towards the Windsor area. This storm has the potential to produce tornadoes from 6:30 PM to 8:30 PM EDT this evening. This is an alert to the potential development of severe thunderstorms capable of producing tornadoes..monitor weather conditions and listen for updated bulletins.