A winter storm bore down on the US East Coast on Monday, causing flights to be cancelled after the Presidents Day holiday weekend. By mid-afternoon on Monday, almost 1,400 US flights were cancelled, mostly at Washington, North Carolina and New York-area airports. 5 inches (13 cm) of snow were expected to blanket Washington, with less accumulation in New York City, before turning to freezing rain and then rain amid rising temperatures, National Weather Service said. The vast storm stretched to western parts of Pennsylvania and New York, where Buffalo was expected to get more than 12 inches of snow. In related news some carriers advised of possible delays on Tuesday as a snowstorm was expected to hit parts of Ontario and Quebec.