May 22, 2013 - severe storm potential

[DarkSky]

ACCN10 CWTO 220750
Forecast of thunderstorm potential for the province of Ontario
Issued by Environment Canada at 2:15 AM EDT Wednesday 22 May 2013. 
The next statement will be issued at 4.30 PM today.
---------------------------------------------------------------------
Forecast of thunderstorm potential.

Today..Slight risk of severe thunderstorms this afternoon over 
Southern Ontario near and south of a line from Owen Sound to Muskoka 
to Brockville. Torrential downpours giving local rainfall amounts of 
25 to 50 mm in under an hour, damaging wind gusts to 100 km/h, and 
intense lightning are possible. 2 cm hail is also possible. There is 
also a risk of a tornado. Otherwise across the rest of Southern
Ontario and over Northeastern Ontario south of a line from Gore Bay 
to North Bay this morning, scattered non-severe thunderstorms with 
heavy downpours giving local rainfall amounts of 25 mm and frequent 
lightning are expected.

Tonight..Slight risk of severe thunderstorms this evening over 
Southern and Eastern Ontario as a cold front moves through. Damaging 
winds, torrential downpours and intense lightning are the main 
threats. There is a lesser risk of large hail and an isolated
Tornado cannot be ruled out. Otherwise across Southern and Eastern
Ontario scattered non-severe thunderstorms with downpours
And frequent lightning will end overnight.

Thursday..No thunderstorms are expected over Ontario.

---------------------------------------------------------------------
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.

[obwan]

NWS has southern ontario in a 30% chance of severe wind and hail storms, and 2% chance for tornado for this afternoon.

Haven't seen these odds in a long time.

[benjaminblizzard]

Those are fairly high odds. Do you think we'll get enough diurnal heating? It's been cloudy all morning in Toronto; sun is trying to peak through now.

[Stormydude]

http://weather.gc.ca/warnings/index_e.html?prov=son

Watch is up.

[obwan]

Some cumulous building rather quickly north of bolton

[tice23]

Originally Posted by benjaminblizzard

Those are fairly high odds. Do you think we'll get enough diurnal heating? It's been cloudy all morning in Toronto; sun is trying to peak through now.

I think anything that does develop will be far less intense than yesterdays. I was really hoping for things to heat up too.

if the cells by collingwood get a little more organized it could be interesting in the next two hours for me...

[benjaminblizzard]

Hearing some pretty loud thunder from where I am right now (midtown Toronto).

Edit: Well, that turned out to be a bit of a letdown. Another day.

[SlideShowBob]

Lightshow in SW barrie now...good rain and the temps are dropping.

[SlideShowBob]

plus gusty winds...