 The 1959 Mexico hurricane is the deadliest eastern Pacific tropical cyclone on record . First observed south of Mexico on October 23 , the cyclone tracked northwest . It intensified into a Category 3 hurricane on October 25 and reached Category 4 intensity the following day . After turning toward the northeast , the hurricane maintained Category 4 status and made landfall near Manzanillo , Mexico . The system continued on that trajectory prior to dissipating the next day . 
