All severe thunderstorm warnings have ended, severe thunderstorm watches remain in effect for parts of SW and SE Ontario (does not include most of golden horseshoe)

In SW Ontario it includes the stretch from Windsor through London to Hamilton, Burlington&Oakville

In SE Ontario it includes Peterborough, Kawarthas, Bancroft and Ottawa.

Areas it does Not Include: Peel region (eg. Mississauga, Brampton), Toronto, York region (eg. Vaughan, Markham, Newmarket), Durham region (eg. Oshawa, Uxbridge), Lake simcoe area (eg. Barrie, Orillia), areas adjacent Georgian Bay&Lake Huron shores (eg. Goderich, Wiarton, Parry Sound)


Here is the latest from Environment canada

WWCN11 CWTO 220049
SEVERE WEATHER BULLETIN
ISSUED BY ENVIRONMENT CANADA
AT 8:49 PM EDT THURSDAY 21 JUNE 2012.
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WATCHES/WARNINGS IN EFFECT FOR SOUTHERN ONTARIO...

SEVERE THUNDERSTORM WATCH FOR:
WINDSOR - ESSEX - CHATHAM-KENT
ELGIN
LONDON - MIDDLESEX
OXFORD - BRANT
CITY OF HAMILTON
BURLINGTON - OAKVILLE
BELLEVILLE - QUINTE - NORTHUMBERLAND
PETERBOROUGH CITY - LAKEFIELD - SOUTHERN PETERBOROUGH COUNTY
APSLEY - WOODVIEW - NORTHERN PETERBOROUGH COUNTY
STIRLING - TWEED - SOUTH FRONTENAC
BANCROFT - BON ECHO PARK
BROCKVILLE - LEEDS AND GRENVILLE
CITY OF OTTAWA
GATINEAU
PRESCOTT AND RUSSELL
CORNWALL - MORRISBURG
SMITHS FALLS - LANARK - SHARBOT LAKE
RENFREW - PEMBROKE - BARRY'S BAY.

CONDITIONS ARE FAVOURABLE FOR STRONG THUNDERSTORMS TO DEVELOP
THIS EVENING. SOME OF THESE STORMS COULD REACH SEVERE LEVEL
WITH TORRENTIAL DOWNPOURS, LARGE HAIL AND DAMAGING WINDS.

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.

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WATCHES/WARNINGS ENDED FOR SOUTHERN ONTARIO...

SEVERE THUNDERSTORM WARNING ENDED FOR:
WINDSOR - ESSEX - CHATHAM-KENT
ELGIN
WOODSTOCK - TILLSONBURG - OXFORD COUNTY
KALADAR - BANNOCKBURN - BON ECHO PARK
PLEVNA - SHARBOT LAKE - WESTERN LANARK COUNTY.

SEVERE THUNDERSTORMS HAVE WEAKENED OR MOVED OUT OF THE AREA.