PHILADELPHIA (CBS) — As the snow continues to fall, the conditions continue to worsen at Philadelphia International Airport.

The airport has reissued a ground stop for arriving flights, meaning any flights expected to fly into Philadelphia are back on hold. The FAA had grounded all flights earlier this morning, but later lifted the restriction. However, the ground stop has since been been put back in effect.

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Flights departing Philly International were experiencing delays of up to nearly three hours.

The winter storm is impacting air travel at several airports along the east coast.

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Travelers are being urged to check their flight status on before heading to the airport.