Delays posed a major problem for shipping en route to New York City , and bad weather could close the Channel for days .
Ambrose Channel is the only shipping channel in and out of the Port of New York and New Jersey , an important commercial port .
Delays posed a major problem for shipping en route to New York City , and bad weather could close the Ambrose Channel for days .
Ambrose Channel is the only shipping channel in and out of the Port of New York and New Jersey , an important commercial port .