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Update: (2:31 p.m. EDT) -- Carnival Cruise Lines has adjusted the itineraries of three more ships in response to Tropical Storm Cristobal.
Carnival Glory, Carnival Pride and Carnival Sensation have been added to the list of ships that have had to divert their paths to avoid the storm. The most up-to-date itinerary changes are listed, below.
A Tropical Storm Warning remains in effect for the Southeastern and Central Bahamas, and Turks and Caicos. The Northwestern Bahamas has been advised to monitor the storm's progress. The tropical storm is expected to strengthen within the next 48 hours.
(10:08 a.m. EDT) -- Tropical Storm Cristobal -- which is approximately 170 miles east of Great Exuma Island in The Bahamas -- has prompted at least three cruise lines to adjust their ships' itineraries.
The storm has maximum sustained wind speeds of 60 miles per hour and is moving northwest along The Bahamas at three m.p.h.
According to the National Hurricane Center, Tropical Storm warnings have been issued for the Southeastern and Central Bahamas, as well as Turks and Caicos.
Carnival Splendor: Splendor skipped Half Moon Cay for Nassau on August 24 and will replace Nassau with Port Canaveral on August 25. Before the storm gained Tropical Storm status, on August 23, Grand Turk was replaced with Half Moon Cay.
Carnival Liberty: The order of Liberty's itinerary has been rearranged. All ports still remain on the itinerary, just in a different order.
Carnival Glory: Glory was forced to spend a day at sea August 24 in lieu of calling in Nassau.
Carnival Pride: The ship will call at Port Canaveral instead of Grand Turk on August 27 and Nassau instead of Half Moon Cay on August 28.
Carnival Sensation: Key West will replace Nassau on August 26.
Royal Caribbean's Oasis of the Seas: The ship will skip Nassau on August 24, spending a day at sea.
Royal Caribbean's Freedom of the Seas: FOS will not call in CocoCay on August 25; instead, spending a day at sea.
Disney Fantasy: Disney has made at least one change, replacing a call to St. Maarten with San Juan on August 26.
Norwegian Cruise Line and MSC also have ships in the area, but Cruise Critic has not received word of any changes.
We'll continue updating this story as more information becomes available.
--By Gina Kramer, Associate Editor