ACCN10 CWTO 222020
FORECAST OF THUNDERSTORM POTENTIAL FOR THE PROVINCE OF ONTARIO
ISSUED BY ENVIRONMENT CANADA AT 3:48 PM EDT WEDNESDAY 22 MAY 2013.
THE NEXT STATEMENT WILL BE ISSUED AT 4.00 AM THURSDAY.
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FORECAST OF THUNDERSTORM POTENTIAL.
TONIGHT..SLIGHT RISK OF SEVERE THUNDERSTORMS THIS EVENING OVER
SOUTHERN AND EASTERN ONTARIO AS A COLD FRONT MOVES THROUGH. DAMAGING
WINDS, TORRENTIAL DOWNPOURS AND LARGE HAIL ARE THE MAIN THREATS. AN
ISOLATED TORNADO CANNOT BE RULED OUT. OTHERWISE ACROSS SOUTHERN AND
EASTERN ONTARIO SCATTERED NON-SEVERE THUNDERSTORMS WITH DOWNPOURS
AND FREQUENT LIGHTNING.
THURSDAY..CHANCE OF A NON-SEVERE THUNDERSTORM NEAR THE ST LAWRENCE
RIVER.
FRIDAY..NO THUNDERSTORMS ARE EXPECTED OVER ONTARIO.
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A THUNDERSTORM IS DEFINED AS SEVERE IF IT PRODUCES ONE OR MORE OF THE
FOLLOWING:
- WIND GUSTS OF 90 KM/H OR GREATER.
- HAIL OF 2 CENTIMETRES IN DIAMETER OR GREATER.
- RAINFALL AMOUNTS OF 50 MILLIMETRES OR GREATER IN ONE HOUR OR LESS.
- A TORNADO.
NOTE: THIS FORECAST IS ISSUED TWICE DAILY FROM MAY 1 TO SEPTEMBER 30.
END/OSPC