Philadelphia International Airport Flights Delayed By Storms

PHILADELPHIA — Millions of Thanksgiving travelers are already hung up at airports after their flights were canceled Tuesday as the first of two storm systems continued to move through the Rockies, Great Plains and Great Lakes. Denver International Airport, a major hub, canceled more than 450 flights Tuesday morning, and that could affect travel to and from Philadelphia.

For Wednesday, Nov. 27, Flightaware.com reports there are 12 delayed flights. As for canceled flights, there are 3 for Nov. 27.

On Thanksgiving Day proper, the website reports just one delay and 15 cancellations.

The Flightaware.com Misery Map shows what to expect across the country.

The storms will potentially affect travel through the weekend, setting up to the potential for travel headaches for Americans on their way home. A record 4.5 million of Americans planned to fly to their Thanksgiving destinations, according to the AAA travel group.

>>>RELATED: PA Thanksgiving Forecast: Hazardous Weather Outlook Issued<<<

The National Weather Service called the second storm “historic” and “unprecedented” for southwest Oregon and northwest California, where it will bring areas of damaging winds, heavy mountain snow and heavy rain to the West Coast Tuesday through Thanksgiving Day.

Parts of Colorado had received more than a foot of snow by daybreak Tuesday, with more expected to fall in blizzard conditions. Some areas could see near-record snowfall. The National Weather Service in Boulder, Colorado, “strongly discouraged” travel Tuesday. The storm had already closed several roads, including Interstates 76 and 70 across the Plains.

The current storm has prompted winter storm watches and warnings in effect through Wednesday across a large swatch of the central United States, from Colorado to Michigan’s Upper Peninsula to as far south as Oklahoma and Iowa. Heavy winds are expected to cause more delays across large swaths of the country.

If the storm intensifies, it could bring heavy, windswept snow to the north and west of the affected area and severe thunderstorms to the south and east, the National Weather Service warns.

Conditions are ripe for a second storm to set up Thanksgiving Weekend

For Thanksgiving week in Pennsylvania, the National Weather Service says a storm system may bring the "very" windy conditions late Wednesday into Thanksgiving.