Travel has come to a near halt in parts of the Northeast on Monday, February 23, as Winter Storm Hernando leads to thousands of flights cancellations. Forecasters are predicting this to be the most powerful winter storm the US has seen in close to a decade, with New York City, Boston, and Philadelphia already blanketed in snow. Close to 40 million people are currently under blizzard warnings, with 19 million more facing winter storm warnings. As a result, many major airlines have grounded flights to and from the US East Coast, causing knock-on travel disruptions at airports around the world. “Travel will grind to a halt across much of the Northeast," says Jonathan Porter, AccuWeather's Chief Meteorologist. "Thousands of flights are being canceled at major hubs in the Northeast, with impacts cascading across the country. Rail and bus service will be suspended.…