ACCN10 CWTO 190848
CONVECTIVE WEATHER FORECAST FOR THE PROVINCE OF ONTARIO ISSUED BY ENVIRONMENT 
CANADA ONTARIO REGION AT 4:48 AM EDT FRIDAY 19 AUGUST 2005.
THIS FORECAST IS ISSUED AT 4 AM AND 4.30 PM DAILY BETWEEN MAY 1 AND SEPTEMBER 30.

NOTE:  THIS IS NOT A SEVERE WEATHER WATCH WARNING OR SPECIAL WEATHER
       STATEMENT.

TODAY..SCATTERED THUNDERSTORMS SPREADING ACROSS SOUTHERN ONTARIO WITH A SLIGHT 
RISK OF SEVERE THUNDERSTORMS. THE MAIN THREATS ARE TORRENTIAL RAIN AND STRONG WINDS..
BUT THERE IS ALSO A RISK OF A TORNADO IN THE SOUTHWEST. ISOLATED NON SEVERE THUNDERSTORMS 
ARE EXPECTED OVER NORTHWESTERN ONTARIO AHEAD OF A COLD FRONT.

SATURDAY..THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS SOUTHERN ONTARIO IN 
ADVANCE OF A COLD FRONT. THE MAIN THREATS ARE TORRENTIAL DOWNPOURS AND STRONG WINDS. 
THE THREAT WILL SPREAD FROM WEST TO EAST DURING THE DAY.

A SEVERE THUNDERSTORM IS DEFINED AS HAVING ONE OR MORE OF THE FOLLOWING

 - WIND GUSTS OF 90 KM/H OR GREATER.
 - HAIL OF 2 CENTIMETRES DIAMETER OR GREATER.
 - RAINFALL RATE GREATER THAN 50 MILLIMETRES IN 1 HOUR OR
   LESS OR 75 MILLIMETRES IN 3 HOURS OR LESS.
 - TORNADOES

END/MISANCHUK