Schools close as looming Quebec storm is already causing holiday travel disruptions

School closures and flight cancellations have begun in Quebec as apowerful winter storm approaches the province, expecting to bringan intense, low-pressure system Thursday night and into the holiday weekend.

As of noon Thursday, winter storm warnings were in effect for much of southern Quebec including in the Abitibi, Mauricie, Quebec City region and Saguenay-Lac-St. Jean.

Environment Canada has issued a snowfall warning for Montreal and Laval.

Snowfalls of 5-10 centimetres in the Montreal area, and 20-30 in the Quebec City area are expected Thursday night, along withstrong winds with gusts reaching 70 km/h.

Then the temperature is expected to rise in certain areas on Friday, leading to rain, Environment Canada says.

Temperatures are forecast to drop Friday night, leading to treacherous driving conditions.

Winds will remain high, andresidents living along Quebec's eastern shores are being warned to watch for storm surges during high tides as of Friday.

On Saturday afternoon, the forecast is snow squalls over southern Quebec due to the passage of cold air over the Great Lakes.

This cold air could bring temperatures below normal for the season on Sunday and early next week, says Environment Canada.

School closures

Throughout Quebec, many school districts and post-secondary institutions raised the white flag Thursday night cancelling classes ahead of the expected storm.

In the Montreal area, closures include:Centre de services scolaire de Montral,English Montreal School Board,Centre de services scolaire Marguerite-Bourgeoys,Centre de services scolaire de Lavaland theLester B. Pearson School Board.

It's safe to say that parents and students should be checking their school's website or social media before going to school on Friday.

The storm is arriving just as Montreal finished up cleaning its streets from the last storm, according to MayorValrie Plante.

"We are preparing for a second inundation which will be mixed with rain in Montreal," she said on Twitter. "This storm could make travel difficult. Be careful."

If you're headed to airport, check your flight

By 11 a.m. Thursday, airlines had cancelled 21 flights in and out of Montreal-TrudeauInternationalAirport.

The airport said the cancellations were a result of the storm rolling through the United States.

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Anne-Sophie Hamel is a spokesperson with the Aroports de Montral.

Orlans Express has cancelled several intercity buses between Quebec, Rimouski and Gaspsie. Travelers can get more information by looking at the bus line's website and social media.

Power outages are expected, so get prepared

Hydro-Qubec, the province's public utility is urging residents to be well prepared for power outages.

Hydro-Qubec notes temperatures indoors can become uncomfortable without electric heating, and while most outages are short, it is recommended that people preheat their home by raising the temperature a few degrees at least an hour before a service interruption.

• If the power or data on your device is low,get your storm updates on CBC Lite

Batteries should be charged, and meals planned to avoid opening the fridge and freezer too much while the power is off, the Crown corporation says. It also recommends having emergency numbers at the ready, including Hydro-Qubec's (1-800-790-2424) to report the outage.

The corporation also recommends downloading the HydroQubec application to follow the evolution of outages and ensure that you receive notifications about them.

Public Safety Canada encourages people to be prepared and carry emergency kits containing drinking water, food, medication, a first aid kit and a flashlight.

Since there is uncertainty related to the trajectory of the system, Environment Canada says it is still too early to give details as to the amounts of precipitation expected.

Quebec City's proactive measures

Quebec City Mayor BrunoMarchand says he prefers having a city that's too prepared than not enough.

He said municipal workers in the capital will be ready to remove snow on the streets and sidewalks as soon as the storm starts and more employees are on call to remove any debris as needed.The city's 3-1-1 line will also be open on Christmas Eve.

The city is asking people to make sure their tempos are properly secured. There will also be a parking ban in effect for the entire city Friday night.

The city's annual German Christmas will close tonight, a day early.The outdoor portion of the Chemin de Nol event is also cancelled.Several schools have already announced they'll be closed Friday.

The city urges people to follow its social media and website for all updates.