Canadian wildfire smoke impacts Philadelphia as heat index nears 100

Canadian wildfire smoke is lowering visibility and bringing the smell of smoke across the Philadelphia area. FOX 29 says the smoke will affect the region today and tomorrow, with the heaviest concentration expected around the area tonight.  The region is also in its fifth heat wave of the year, with the heat index expected to feel around 100 degrees. Isolated storms are possible later today, with a better chance for showers and thunderstorms Saturday to help break the heat and clear some of the smoke.