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E.C. weather statements Notable statements issued by Environment Canada to the public

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Old 07-12-2010, 07:47 AM
Raedwulf Raedwulf is offline
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Default July 12-13, 2010. Popup and cold front thunderstorms

Code:
ACCN10 CWTO 120747
Convective weather forecast for the province of Ontario
Issued by Environment Canada Ontario region
At 3:47 AM EDT Monday 12 July 2010.
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..Over Southern Ontario isolated thunderstorms. There is a 
slight risk that some of the storms especially over Extreme
Southwestern Ontario may be severe with damaging winds heavy 
downpours and large hail as the main threats. Over Central Ontario 
isolated thunderstorms ahead of a cold front. There is a slight risk 
that some of these storms may be severe with damaging winds and
Large hail as the main threats.

Tonight..Over Southern Ontario and the Nickel Belt isolated 
thunderstorms ahead of a cold front. There is a slight risk that
Some of these storms may be severe with damaging winds heavy 
downpours and large hail as the main threats.

Tuesday..Over Southern Ontario isolated thunderstorms ahead of a
Cold front. There is a slight risk that some of these storms 
especially over Eastern Ontario may be severe with heavy downpours 
damaging winds and hail as the main threats. Over Northwestern
Ontario isolated thunderstorms. There is a slight risk that some of 
these storms may be severe with damaging winds and large hail as the 
main threats.

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.
 - tornadoes

END/OSPC
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Last edited by DarkSky; 07-12-2010 at 11:22 AM.
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