Record Heat

It was a steamy day across Ontario yesterday with numerous record highs recorded including the 34C in Ottawa and 35C in Kemptville. It remains hot today with heat and humidity advisories posted for all our areas. Air Quality Advisories are also posted in New York State. At noon today it is 32C in Ottawa with the highest humidex in country at 44C!

The end to the heat is upon us as a cold front cuts into our area. Our focus now shifts to severe weather with the potential for heavy thunderstorms across the entire southern half of Ontario and into the Seaway and Quebec this afternoon and evening. The main threat will be abundant rainfall in the humid air mass, over 50mm is possible. High winds and dangerous lightning are also a risk

http://www.weatheroffice.gc.ca/warnings/report_e.html?on10