About 477 flights were cancelled and around 1,500 passengers were stranded at Philadelphia International Airport, Pennsylvania, US, last week due to a snow storm in the state.
Lupica said all runways remained open, and crews would try to keep them clear as the snow intensified during the night.
Airport spokeswoman JoAnn Jenny said airlines were cancelling flights pre-emptively because as many as nine inches of snow was forecast to fall in Philadelphia, according to the Associated Press.
Philadelphia declared a snow emergency as of 7pm on 26 January and orders were issued to remove cars from emergency routes.
The airports in the north-east region of the US have also been affected by the snow storm, including Fort Lauderdale-Hollywood International Airport, Palm Beach International and Miami International airports in South Florida.