(6:00 a.m. EDT) -- The third named storm of the Atlantic hurricane season, hurricane Cristobal continues its northward track towards Bermuda.

According to the National Hurricane Center's latest public advisory bulletin, Hurricane Cristobal has maximum sustained wind speeds of 75 miles per hour and is moving north to northeast at 15 m.p.h., approximately 290 miles southeast of Cape Hatteras, North Carolina.

A Tropical storm warning is in effect for Bermuda, where the storm is expected to bring heavy rainfall and high winds as it passes the island in the next 24 hours. Cristobal is not predicted to make landfall in the US, but the forecast for Bermuda has prompted at least four cruise lines to alter cruise ship itineraries. Portions of the east coast of the US are also affected with large swells, which are likely to cause life-threatening surf and rip current conditions.

As a tropical storm, Cristobal hammered parts of the Bahamas and the Turks and Caicos Islands on Sunday with heavy surf and rainfall. Cristobal also claimed three lives on the Caribbean island shared by Haiti and the Dominican Republic when rivers swelled and burst their banks. Bermuda will expect one to two inches of rainfall tomorrow

NOAA's National Hurricane Center released a public advisory statement last night (Monday, August 27) at 5:00 a.m. A category 1 storm has sustained wind speeds between 74-95 miles per hour on the Saffir-Simpson scale.

Below is a list of the most up-to-date itinerary changes, in order by cruise line.

Itinerary Changes

Carnival Cruise Lines

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.

Celebrity Cruises

Celebrity Summit: The ship is swapping out its entire Bermuda itinerary for Port Canaveral (August 27) and Nassua (August 28).

Royal Caribbean International

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 Cruise Line

Disney Fantasy: Disney has made at least one change, replacing a call to St. Maarten with San Juan on August 26.

Norwegian Cruise Line

Norwegian Dawn: The ship will be departing King's Wharf at 6 a.m. EDT instead of 5:30 p.m. EDT on August 26.

Norwegian Breakaway: Norwegian Cruise Line has canceled its Bermuda itinerary, rerouting the ship to Port Canaveral (August 27) and Nassau (August 28).

Royal Caribbean and Celebrity Cruises also have ships in Bermuda this week, but Cruise Critic has not received word of any changes.

We'll continue updating this story as more information becomes available.

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--By Gina Kramer, Associate Editor