It may look like a winter wonderland out there, but it's shaping up to be a headache for anyone with travel plans on the East Coast, thanks to a late-night ice storm.

Airports and airlines are advising travellers flying in or out of any Canadian cities today to check with their airlines before leaving.

"Basically no matter where you are in the [eastern half of the] country right now, if you’re travelling between Canadian cities there’s a very good chance you’re going to have some headaches this morning," B.C. reporter Sherry Aske told CBC News.

Sunday's icy weather is already responsible for more than 120 cancelled flights at Toronto's Pearson International Airport. That number is expected to rise throughout the day, with even more flights delayed. The airport cautions any travellers heading to the airport to give themselves plenty of time today.

The situation isn't much different at the Toronto Island airport with dozens of cancellations and delays, according to the Toronto Port Authority's website.

Meanwhile at Ottawa's Macdonald-Cartier International, travellers can also expect dozens of delays and some cancellations. Montreal-Trudeau is also reporting a similar story with a handful of cancellations and dozens of delays as of Sunday afternoon.

Flyers can find more information about their flights by checking in with an airport's website. However, it's best to call your airline directly to make alternate arrangements.

Air Canada is allowing passengers affected by the storm to rebook without penalty, provided there's enough space. WestJet and Porter Airlines are also allowing their passengers to do the same via phone.

You can reach Air Canada's automated flight system at 1-888-422-7533.

Travellers flying with WestJet can call 1-888-937-8538 to rebook.

Flying with Porter? You can find out more about your flight at 1-888-619-8622.

But it's not just flyers the ice storm is impacting.

Via Rail is reporting delays on the Toronto-Montréal and Toronto-Ottawa routes due to the weather. Riders are urged to check this website for updates, or call 1-888-842-7245. Meanwhile, downed power lines and fallen tree branches are making for tricky driving and are the cause of extensive power outages across the Greater Toronto Area.

For travellers looking for visit friends and family within the GTA, GO Transit is warning its riders that service will be a bit slower today. Trains and buses are both running but trips will take a bit longer than usual.

Environment Canada for its part is advising people to be cautious and not to take any unnecessary risks.

"This will be one of the most heaviest ice rains or freezing rains we have seen in decades," said David Phillips, a climatologist with Environment Canada, in an interview with CTV. "I think it's important to be respectful of it and make sure you don’t do anything foolish."

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Toronto Mayor Rob Ford says one Hamilton worker was injured due to falling ice last night.

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Toronto Mayor Rob Ford urges caution as warmer weather can cause ice to fall.

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As of the afternoon of Christmas Day, tens of thousands from Ontario to the Maritimes are still without power. According to the Canadian Press:

- 13,500 customers without power in Quebec, primarily in the Eastern Townships

- 30,000 customers in the dark in N.B., with nearly half in Saint John area

- Power back on for affected customers in N.S.

- 2,500 customers without power in Pickering and Ajax east of Toronto

- 6,700 customers without power in Markham, Richmond Hill and Vaughan

- 24,000 customers without power in Guelph, Peterborough and Walkerton

- 72,000 customers without power in Toronto

For the latest updates on the power outages, we'll be posting more on the story at huffingtonpost.ca or follow us on Twitter.

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Many calls related to carbon monoxide. Chief Jim Sales reminds people not to use outdoor generators, stoves, barbecues indoors. Very dangerous and a CO risk.

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Head of TCH says hundreds of meals being handed out to residents without power.

Premier Wynne also to make visit to TCH facilities later this afternoon, according to official itinerary.

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Mayor Rob Ford said that garbage crews will begin pick-up of tree debris on Dec. 27. Could take 4-6 weeks to pick up large volume of waste.

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Officials updating at 11 am press conference:

Mayor Rob Ford, Toronto Hydro say about 72,000 customers now without power. Majority of outages on the east side of the city.

Toronto Hydro CEO Anthony Haines urging patience. Says call centre is receiving 128,000 calls, average day about 3000 calls.

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Temperatures in the City of Toronto have risen. The high on Christmas day is expected to be -4. The city says that warming centres are still open.

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City of Toronto 9:35 PM EST Tuesday 24 December 2013

Special weather statement for City of Toronto continued

Very cold temperatures moderating later Christmas Day. Winds to 20 km/h at times.

Cold temperatures are occurring over the areas most significantly affected by the weekend ice storm. As of 9:00 PM Christmas Eve, temperatures averaged near minus 15, except minus 19 in the St Lawrence Valley.

A very cold night is in store. Low temperatures Christmas morning are expected to range from minus 17 in the City of Toronto to minus 23 in some rural areas and in the St Lawrence Valley.

Temperatures will slowly moderate Christmas Day with temperatures reaching minus 6 to minus 8 late Christmas afternoon. Temperatures will further moderate to values near minus 3 by Boxing Day.

Winds are generally light to northwesterly at 15 km/h this evening, becoming light tonight, then southeast 20 km Christmas Day. On Boxing Day winds of 20 to 25 km/h from southwest are forecast.

Periods of snow will develop over most regions Christmas Day then end by Boxing Day. However amounts of 5 cm or less are expected.

The moderate winds at times could cause more branches to fall. To those who are still without power it is advised to seek warm shelter and prepare for the colder than average temperatures that are expected.

Given the well below freezing temperatures, much of the ice will not melt and will likely remain on many surfaces through Christmas and Boxing Day until the end of the week.

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Pets welcome. Vulnerable residents will be able to access food, water, and heat.

Toronto Community Centre locations are as follows:

  • Dennis R. Timbrell Community Centre, 29 St. Denis Dr. (Eglinton/Don Mills)
  • Malvern Community Centre, 30 Sewells Rd. (Neilson/Finch)
  • Agincourt Community Centre, 31 Glen Watford Rd. (Sheppard/Midland)
  • Driftwood Community Centre, 4401 Jane St. (between Finch and Steeles)
  • Mitchell Field Community Centre, 89 Church Ave. (Yonge/Finch)
  • Joseph P. Piccininni Community Centre, 1369 St Clair Ave. W. (St Clair/Keele)
  • Matty Eckler Community Centre, 953 Gerrard St. E. (Pape/Gerrard)
  • Lawrence Heights Middle School, 50 Highland Hill (between Ranee and Dane)
  • Edithvale Community Centre, 131 Finch Ave. W. (between Bathurst and Yonge)
  • Pleasantview Community Centre, 545 Van Horne Ave. (between Edmonton and Brian)
  • East York Collegiate Institute, 650 Cosburn Ave. (Coswell/Coxwell)
  • McGregor Park Community Centre, 2231 Lawrence Ave. E. (Lawrence/Kennedy)

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  • Division 11 – 2054 Davenport Road (Davenport/Osler)
  • Division 12 – 200 Trethewey Drive (Trethewey/Black Creek)
  • Division 14 – 350 Dovercourt Road (College/Dovercourt)
  • Division 22 – 3699 Bloor Street West (Bloor West/Dundas West)
  • Division 23 – 5230 Finch Avenue West (Kipling/Finch)
  • Division 31 – 40 Norfinch Road (Norfinch/Finch West)
  • Division 33 – 50 Upjohn Road (York Mills/Don Mills)
  • Division 42 – 242 Milner Avenue (Milner/Markham)
  • Division 43 – 4331 Lawrence Ave. E (Lawrence Ave. E/ Kingston Road)
  • Division 51 – 51 Parliament Street (Front/Parliament)
  • Division 52 - 255 Dundas Street West (LOBBY ONLY)
  • Toronto Police Service College – 70 Birmingham Street (Birmingham/Fifth)
  • Toronto Police Service HQ – 40 College Street (College/Bay)

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She dodges the question. "I'll continue working with the people making the decisions at City Hall."

Says she wants to make sure that provincial resources are being allocated properly.

Wynne says politics at City Hall haven't had an impact on ice storm response.

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"We are talking with the decision maker. We are talking with the team. Anthony Haines (Toronto Hydro CEO) is sitting right here."

"We are dealing with decision makers at city hall, the on-the-ground decision makers," she said in response to a media question.

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