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Severe thunderstorms fired up across parts of Ontario and Quebec on Tuesday prompting tornado warnings in some places. We also compare the size of forest fires in the north and take a closer look at Cristobal's impact in the east. Here's your weather briefing for Wednesday, August 27.

Four things you need to know about Wednesday, August 27

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    Andrea Bagley
    Digital Reporter

    Wednesday, August 27, 2014, 7:20 AM - Wondering what you missed overnight or what you can expect for the day ahead? 

    Here's your weather briefing for Wednesday, August 27. 

    1. No direct impact expected from Cristobal

    "At this stage it does not look like this storm will affect land - however - there will be ocean swells along the southern Atlantic coastlines of Nova Scotia and Newfoundland on Thursday and Friday, respectively," says the Canadian Hurricane Centre in the latest tropical cyclone early Wednesday.

    Forecasters say Cristobal and a non-tropical low are expected to merge into one large and intense low pressure near the Grand Banks area later this week.

    "At this point our thinking is that the strongest winds from the merged systems should stay well offshore. There will be some wind and rain over Atlantic Canada Thursday and Friday that will not - repeat - not be directly related to Cristobal," the CHC adds.

    Gusty winds are likely over Newfoundland Friday along with ocean swells that could give moderate surf and rip tide conditions on Thursday.

    "The main concern with this storm - and its interaction with non-tropical weather features - is the potential for very large waves and hurricane-force winds over the Southern Grand Banks," the CHC says.

    2. Torontonians sweat out hottest night of the summer

    Parts of Toronto were left without power on Tuesday after contractors damaged some hydro equipment around 12 pm.

    Crews worked through the night and were able to restore power to the 6,000 affected customers by early Wednesday morning. 

    The outage came on one of the hottest days of the year, as temperatures soared above 30°C, feeling closer to 40 with the humidex.

    That was the first time since the end of June that Toronto's Pearson Airport reached a daytime high above 30.

    The humidity was also a key ingredient in the thunderstorm risk across the region, which was in the path of a cold front passing through.

    That prompted severe thunderstorm watches to be issued all across southern Ontario Tuesday, but atmospheric conditions prevented the formation of major storms in the southwest, although some wind damage was reported in Windsor.

    Temperatures will return to more seasonal values for the remainder of the week.

    3. Severe storms fire up in Quebec

    The same storms that swept through southern Ontario Tuesday continued to push east into Quebec through the evening hours.

    Tornado warnings were in effect for the Mont Laurier, Pontiac and Upper Gatineau-Papineau areas.

    "The weather radar shows rotation in a thunderstorm near Notre-Dame-du Laus that is tracking northeastward toward Lac du Cerf at 50 km/h," said Environment Canada in the warning issued before 9 pm. "Another thunderstorm [is following] along the same track. Large hailstones and heavy downpours are also associated with these thunderstorms."

    All the tornado warnings dropped by 9:15 pm, but heavy rain and hail and frequent lightning were reported.

    According to The Weather Network's sister station MétéoMédia, up to 6,000 lightning strikes per hour were observed in some areas.

    EXTENDED ACTIVE WEATHER COVERAGE: Tune in to The Weather Network for live updates on the summer storms in your area. Our team of reporters and meteorologists in the field provide you with the most accurate and up-to-date coverage.

    Jonquière, Quebec- Warren Warren

    Jonquière, Quebec- Warren Warren

    4. Size comparison of forest fires in the north

    Air quality advisories have finally been dropped in the Northwest Territories after wildfire smoke created health hazards for an extended period of time.

    Still, the size comparison of the forest fires in the north is astonishing.

    So far this year, over 3.3 million hectares of land has been burned, or the equivalent of about 34,000 square kilometres.

    In comparison, that's about the entire size of Vancouver Island. 

    And lastly, in Edmonton our own Margeaux Morin gives a sneak peek in to the (amazing!) weather in Alberta.

    TUNE IN: Tune into The Weather Network on TV for the coverage of all of these stories and more

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