ACCN10 CWTO 230826
CONVECTIVE WEATHER FORECAST FOR THE PROVINCE OF ONTARIO
ISSUED BY ENVIRONMENT CANADA ONTARIO REGION
AT 4:26 AM EDT SATURDAY 23 SEPTEMBER 2006.
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.
DISCUSSION OF THUNDERSTORM POTENTIAL.
TODAY..ISOLATED NON SEVERE THUNDERSTORMS ARE FORECAST FOR MUCH
OF SOUTHERN ONTARIO AS WELL AS PORTIONS OF CENTRAL ONTARIO.
LATER THIS AFTERNOON..MORE ORGANIZED THUNDERSTORMS ARE EXPECTED
TO FORM OVER OHIO AND SOUTHERN MICHIGAN. A FEW OF THESE STORMS
MAY REACH SOUTHWESTERN ONTARIO TOWARDS EVENING AND MAY APPROACH
SEVERE LIMITS. HOWEVER..THE MORE SIGNIFICANT RISK IS EXPECTED
TO REMAIN JUST SOUTH OF LAKE ERIE. THE PRIMARY THREAT IN THE
SOUTHWEST WOULD BE BRIEF STRONG WIND GUSTS TO 70 KM/H AND POSSIBLY
SIZEABLE HAIL.
TONIGHT..ANY STORMS THAT FORM LATE THIS AFTERNOON WILL WEAKEN INTO
ISOLATED NON SEVERE THUNDERSTORMS AS THEY CROSS MUCH OF THE REST OF
SOUTHERN AND POSSIBLY EASTERN REGIONS LATER THIS EVENING AND
OVERNIGHT.
SUNDAY..ISOLATED NON SEVERE THUNDERSTORMS ARE POSSIBLE IN THE
MORNING OVER EASTERN ONTARIO.
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/ASHTON
Ontario Convective Outlook
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