The summer wasted no time in reaching Ontario as extreme heat burned much of the province on Tuesday, with temperatures hovering around 30 degrees Celsius in some areas and feeling closer to 40 with a stifling humidity. This will continue for another day Wednesday, though not so hot, before tempering again on Thursday. There is also a threat of thunderstorms across eastern Ontario and southern Quebec on Wednesday, with torrential downpours of 40-60 mm and local rainfall of up to 100 mm. More on Wednesday’s threat of heat and storm, and what lies beyond that, below.
WEDNESDAY: ANOTHER DAY WITH HIGH HEAT AND MOISTURE, POSSIBILITY OF HEAVY RAIN WITH THUNDERSTORM THREAT
The hottest and humid winds so far this year reached much of Ontario on Tuesday, with record temperatures breaking at Toronto 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: Make the sun work for you with these solar powered gadgets 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 still likely until late in the 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.
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. Stay tuned to The Weather Network for the latest forecast updates for Ontario and Quebec.
