(11:15 p.m.) -- Hurricane Paul has weakened slightly to a Category One storm with maximum sustained winds near 85 miles per hour. Additional weakening is forecast throughout the evening, but the storm is continuing on a northern path toward Mexico's Baja peninsula according to National Hurricane Center prediction models.
A hurricane watch is in effect for the southern California Baja peninsula, including popular cruise port La Paz; a hurricane watch means hurricane conditions are possible within 36 hours.
At this point, Carnival has altered the itinerary of one ship due to the storm. Carnival Spirit will remain at sea on Wednesday, October 25, instead of calling at Manzanillo. The itinerary for Carnival Pride, which sails seven-day cruises from Long Beach, may be affected as well; a spokesman for the line tells us they are still monitoring the path of the storm.
Royal Caribbean, too, has announced changes: Vision of the Seas will cancel tomorrow's port call in Cabo San Lucas and Wednesday's visit to Mazatlan. Instead, the ship will make a port call in Manzanillo Wednesday, and continue from there with its scheduled itinerary.
The Mexican Riviera has already been affected by hurricanes this season; in September, Hurricane Lane made landfall at Mazatlan -- just two weeks after Hurricane John narrowly spared Cabo San Lucas.