AWCN11 CWTO 291219
Weather summary for all of Southern Ontario and
The national Capital region
Issued by Environment Canada Toronto at 8:16 AM EDT Thursday 29 July
2010.

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==weather event discussion==

 Bands of strong to severe thunderstorms roared across Southern
Ontario Wednesday generating numerous watches and warnings. Many of 
the thunderstorms contained torrential downpours and wind gusts to
70 km/h. It appears that a swath of regions extending from near
Grand Bend across Woodstock and Innerkip to Hamilton and Caledonia 
and a second swath of regions extending from near Madoc to just
North of Kingston received rainfall amounts of 30 to 50 mm from
These thunderstorms according to weather radar estimates.

  Locally higher rainfall amounts of 50 to 75 mm have been measured 
in the Woodstock area of Oxford county by weather radar from the 
thunderstorms.

 Reports of stronger winds and wind damage received by Environment
Canada as of 8 AM today are found in the table below.

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Location        event description

Windsor         76 km/h wind gust
Hensall         trees down
Cambridge       80 km/h gust (estimated)
Hamilton        74 km/h wind gust


Please note that this summary contains the observations at
The time of broadcast and does not constitute an official
And final report of the weather events or the high
Impact events attributed to the weather events.

END/OSPC

ACCN10 CWTO 290737
Convective weather forecast for the province of Ontario
Issued by Environment Canada Ontario region
At 3:37 AM EDT Thursday 29 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 and tonight..Very isolated non-severe thunderstorms are 
possible in the afternoon and early evening over northeastern
Ontario north of Lake Huron and east of Lake Superior and over 
Eastern Ontario from Peterborough to the St Lawrence river as a
Weak Arctic cold front moves through.

Friday..Isolated non-severe thunderstorms are possible especially 
near the Manitoba border over northwestern and Far Northern 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.
 - tornadoes

END/OSPC