Update, 10:30 a.m. EST: Carnival Magic is on its way out of port. Once Magic has gotten out of the channel, Carnival Triumph will return to port; estimated time of arrival is noon, local time.
Carnival Magic will be able to make all three of its scheduled ports of call, though the order of ports has been changed.
Update, 9:40 a.m. EST: Both Carnival Magic and Navigator of the Seas were forced to spend the night in Galveston after a late evening fog rolled into port.
According to Royal Caribbean, a pilot is onboard Navigator of the Seas and the ship should be departing shortly. Itinerary changes have not been determined yet.
The fog also has delayed the return of Carnival Triumph back to port.
(February 9, 3:45 p.m. EST) -- For the second week in a row fog shut down the port of Galveston, preventing returning cruise ships from getting into port and delaying new sailings.
Carnival Magic and Royal Caribbean's Navigator of the Seas were forced to wait in the channel until the fog lifted and Galveston reopened the port at approximately 2:20 p.m. local time.
Royal Caribbean contacted passengers on today's Navigator of the Seas sailing to let them know that boarding would not begin before 4 p.m., at the earliest.
"Once the port reopens, it will take the ship two hours to transverse the channel and reach the pier … We will then need approximately four hours to disembark our guests currently onboard the ship. Your boarding time will be based upon the speed with which the fog dissipates and when local officials reopen the port," the line wrote in an e-mail to passengers.
The line is providing all passengers with a $20 credit to their onboard accounts to cover lunch in Galveston.
Carnival told Cruise Critic that Carnival Magic's current sailing is expected to arrive at the port at 4 p.m. for disembarkation. Embarkation for today's sailing should begin three or so hours later, a spokesman said.
While fog does not always delay cruise ships sailing into and out of Galveston, it is not an uncommon occurrence either.