This storm was the first in a series that just came out of no where along a lake breeze convergence zone and rapidly began to dive south. Environment Canada was quick to issue a warning calling for 100 km/h winds. WUCN11 CWTO 111757 SEVERE THUNDERSTORM WARNING ISSUED BY ENVIRONMENT CANADA AT 1:57 PM EDT TUESDAY 11 AUGUST 2009. --------------------------------------------------------------------- SEVERE THUNDERSTORM WARNING FOR: =NEW= CITY OF TORONTO =NEW= BURLINGTON - OAKVILLE =NEW= HALTON HILLS - MILTON =NEW= MISSISSAUGA - BRAMPTON. --------------------------------------------------------------------- ==DISCUSSION== SEVERE THUNDERSTORM MOVING SOUTHEAST TOWARDS LAKE ONTARIO. STRONG GUSTS TO 100 KM/H AND HEAVY RAIN ASSOCIATED WITH THIS STORM. THIS IS A WARNING THAT SEVERE THUNDERSTORMS ARE IMMINENT OR OCCURRING IN THESE REGIONS. REMEMBER SOME SEVERE THUNDERSTORMS PRODUCE TORNADOES..LISTEN FOR UPDATED WARNINGS. EMERGENCY MANAGEMENT ONTARIO RECOMMENDS TAKING COVER IMMEDIATELY WHEN THREATENING WEATHER APPROACHES. NOTE..A SUMMARY OF ALL WARNINGS AND WATCHES FOR SOUTHERN ONTARIO IS AVAILABLE IN THE WWCN11 CWTO BULLETIN ISSUED IMMEDIATELY FOLLOWING THIS BULLETIN. END/..

Ahead of the storm things were calm, eerily calm and quiet but the scud was rising rapidly!

This line of agitated cumulus along the edge of the storm were not really a shelf, I'm not sure what to call them but they marked the edge of the storm and it really began to get some forward momentum.

This was the last shot before I hunkered down and took video from the car as the storm literally rocked me!