Summer did not waste time arriving in Ontario. Extreme temperatures hit much of the province on Tuesday, with temperatures hovering around 30 degrees Celsius in some areas. This will be maintained for another day Wednesday before surveillance on Thursday. There were also reports of storms and flooding in eastern Ontario and southern Quebec on Wednesday. There is a possibility of strong thunderstorms with torrential rainfall, which potentially bring locally a total of 60-100 mm by Thursday. More on Wednesday’s threat of heat and storm, and what lies beyond that, below.
THIS WEEK: HEAT WARNINGS FOR ANOTHER DAY, RAIN STORM, POSSIBILITY OF HEAVY RAIN
The county has just experienced the hottest and wettest air so far this year on Tuesday, with temperature records breaking at Pearson International Airport and prices seeming to exceed 40 in many areas. On Wednesday, the same heat will move in eastern Ontario and southern Quebec along with a severe storm risk. The very humid atmosphere will intensify all the rainfall, putting a risk of local floods before the conditions cool down on Thursday. READ MORE: The heat is on the horizon. Here are 6 things you will need to keep cool A flurry of storms is forecast for Wednesday afternoon in parts of eastern Ontario and southern Quebec. With limited instability, most storms are projected to remain non-violent in nature. However, some thunderstorms may meet strict warning criteria with locally strong winds and torrential rains. Confidence in thunderstorms across the greater Toronto area (GTA) and the Niagara Peninsula is low, but isolated thunderstorms are likely in the late afternoon. Moving on Thursday raises concerns about local floods. Meteorologists are monitoring an axis with very heavy rainfall and slow-moving storms, which are forecast to develop throughout eastern Ontario and southern Quebec. An immobilized system in a high humidity environment indicates that this narrow rain zone could rise to 30-60 mm, locally up to 100 mm, by Thursday. There is a possibility of flooding and meteorologists will closely monitor the Montreal area and surrounding areas. SEE ALSO: The heat is on the horizon. Here are 6 things you will need to keep cool
IT’S HOT IN SOUTHERN ONTARIO, TIPS TO GET OUT OF THE HOT
– As for what is left of the heat, Tuesday and Wednesday overnight will offer no relief, as some areas remain well above the 20-degree mark as the sun sets. It can be an uncomfortable nightmare for many, even with the right cooling equipment. Colder weather is expected by Thursday. Spectacular weather reminiscent of late summer for southern Ontario Thursday and Friday with plenty of sunshine, low humidity and comfortable temperatures. The clouds will remain until Thursday for southern Quebec, but we will see increasing sunshine on Friday. A stronger cold front will then follow across the area on Sunday with rain and thunderstorms followed by colder weather early next week. Temperatures are expected to be near-seasonal, possibly even a few degrees below seasonal for a few days, in the last days of June and during the Canada Day weekend.
SEE: HOW TO GET HEAT. Tricks to keep you cool
Stay tuned to The Weather Network for the latest Ontario forecast updates.
