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Heavy rain continues to hit parts of southern and northern Ontario Wednesday as fall-like temps plague most of the province.

Heavy rain, fall-like temps hit Ontario

Andrea Bagley
Digital Reporter

Wednesday, August 13, 2014, 11:44 AM - Storms fired up across parts of Ontario Tuesday, prompting severe thunderstorm watches and warnings through the afternoon and evening hours.

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"These intense line of thunderstorms met the severe storm criteria because of significant hail cores along with heavy rains increasing the threat of flash flooding," says Hamilton. "The storms also exhibited signs of 'training,' or when a line of storms continues to track over the same areas of land."

Radar estimated rainfall amounts were showing regions experiencing rates as high as 50 mm per hour.

"Areas west of Midland were closer to 75 mm for storm totals," Hamilton adds.

Rainfall warnings remain in place for portions of southern and northern Ontario Wednesday with additional amounts up to 50-60 mm possible through Thursday.

"A final round of rain will gradually end from west to east across far eastern Ontario today," says Environment Canada in the warning. "Total 24 hour rainfall totals are expected to be in the 50 to 70 mm range in some locales. Kingston has received about 57 mm as of 4 am this morning. The heavier rainfall amounts will be somewhat localized, with many places reporting less than 50 mm."

Heavy downpours can cause flash floods and water pooling on roads, officials warn. Localized flooding in low-lying areas is possible.


"Unseasonably cool temperatures will also plague portions of Ontario for Thursday and Friday," says Hamilton. "There's a possibility that North Bay may record a single digit high for Thursday with the nation's capital is forecasting a temperature of 14 degrees for Thursday, 11 degrees below seasonal norms."

Want to know more about this cool down? Get the latest from Dr. Doug Gillham.

The same system will continue to bring heavy rain and cool weather to southern Quebec, prompting rainfall warnings there as well.

"These conditions will move slowly toward the centre of the province today," says Environment Canada in a rainfall warning issued Wednesday. "50 to 90 millimetres of rain are expected until Thursday for areas along the St. Lawrence between Montréal and Charlevoix, with the most significant amounts over the Laurentians foothills."

Five things you need to know about Wednesday, August 13
Seasonal start to August; Autumnal through Friday, but summer returns next week
Central Canada struggles for warmth, both coasts hang onto summer heat
Over 50 mm of rain prompts warnings in Quebec
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