Another ferocious winter storm has buffeted the US northeast, blanketing Boston in record snowfall and forcing the postponement of a victory parade for Super Bowl winners the New England Patriots and spelling travel misery.
A storm warning was in place for dozens of cities and the National Weather Service reported Boston was hit with record snowfall of 40cm.
Flights at Boston's Logan Airport were hit hard, with most international and domestic flights cancelled, as the snow continued to fall and temperatures plunged to minus 11 degrees Celsius.
Thousands of flights were affected throughout the region, including at other major airports such as Chicago O'Hare International, Newark in New Jersey and New York's LaGuardia, according to tracking website flightaware.com.
The latest storm to bury the northeast of the United States also saw the Patriots, fresh from Sunday's gripping Super Bowl victory over the Seattle Seahawks, put back their Boston victory procession from Tuesday to Wednesday.
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Boston schools were to shut again on Tuesday, but better news was in sight.
Weather service forecasters predicted: "The major winter storm that piled snow on locations from Nebraska to New England this weekend will lift away from the northeast coast Monday night.
