 In addition, overworked power transformers have been damaged or rendered useless because of the heat, resulting in blackouts, notably in St. Louis, Missouri; Queens, New York; Los Angeles, California; and the Delaware Valley.Some wildfires, including forest fires, and greater thunderstorm intensity, have both been blamed on the heat wave.Parts of Canada, mostly areas of provinces located close to the U.S. border (Saskatchewan, Manitoba, Ontario and Quebec) had been affected in waves by the persistent heat over the continent building from west to east during the month of July, which progressed into August 2006.