Wintry weather bedevilled Thanksgiving weekend travellers across the USA on Saturday as a powerful and unsafe storm moved eastward, dumping heavy snow from parts of California to the northern Midwest and inundating other areas with rain.
"The trans-continental storm system that has hammered the western USA andnorthern Plains with heavy snow and strong winds has now reached the GreatLakes region", the National Weather Service said in a bulletin on Sunday.
As the storm shifted east, flight delays and cancellations piled up, disrupting travelers heading home after Thanksgiving.
More than 450 flights into or out of the USA were cancelled Monday morning, with more than 2,300 delays, according to the flight tracking site FlightAware.
Airports with the most canceled flights include San Francisco with 67 and Newark, New Jersey, with 33 according to FlightAware.
There were also dozens of flight delays in Chicago and Minneapolis.
The city of Duluth, Minn., was blanketed with nearly 50 cm of snow.
The National Weather Service predicted that the Boston area could get 7 inches of snow Monday with lower amounts to the south and into Rhode Island and CT.
Elsewhere in the country, the storm proved deadly.
The bodies of a boy and a girl, both 5, were found in central Arizona after their vehicle was swept away Friday while crossing a swollen creek.
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As tired travelers make their post-Thanksgiving trek back home - and back to work - two winter storms continue to disrupt travel plans throughout the nation.
A 48-year-old man died in a separate incident near Sedgewickville, Missouri, and a storm-related death was also reported in South Dakota.
In Wyoming and Colorado, major roads were beginning to reopen a day after snow and high winds caused blizzard conditions and clogged roads with snow drifts.
Road crews were able to reopen all of Interstate 25 and most of I-80 in Wyoming early Sunday after strong winds abated.
Meanwhile, on the West Coast, inclement weather continues as highway authorities are requiring cars to install snow chains on a major interstate.
Once the snow reaches two inches or more on the street officials will start plowing, she said.
Further South in Memphis, Tenn., weather conditions will also improve this week, with most of the Midsouth experiencing highs in the 40s.
On Monday evening, rain will begin changing to snow even in Philadelphia, New York City and Boston.
Forecasters were expected about two inches of snow accumulation overnight Sunday with another 5 inches of new snow for the Greater Binghamton area for Monday, December 2.