Exford, U.K.

Snow falls in Exford on January 22, 2013 on Exmoor, England. Snow and ice is continuing to cause disruptions to some parts of the U.K. with more snow forecast for the southwest tonight.

LONDON -- Winter has arrived in .

Snow continued into , but the heaviest snow fell Friday. Airlines canceled dozens of flights and the weather threw rail traffic into chaos.London's Heathrow Airport shut down one runway for 45 minutes so it could de-ice and clear snow.

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Many schools canceled classes Friday ahead of the snow.

The weather.com calls for the snow to continue through at least Monday, with high temperatures staying in the 30s.

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