and four major hurricanes, At the time, 1972 was the central north Pacific's busiest known season. Hurricane Annette On June 1, a tropical disturbance organized into a tropical storm. It slowly moved north and then recurved to the northeast as it accelerated slightly. It intensified into a hurricane on June 4. It remained at that strength for one day. Annette then began weakening. As a tropical storm, Annette made landfall in southeast of Manzanillo on June 7. The next day, it dissipated inland. Annette brought several days of rainy weather to parts of Mexico. However, no deaths or damage were attributed to this tropical cyclone. Tropical Depression Two Tropical Depression Two existed from June 27 to June 28. It paralleled the coast of Mexico without making landfall. Tropical Depression Three Tropical Depression Three formed on July 4 and dissipated two days later. It moved westward while out to sea and never approached land. Tropical Storm Bonny Only July 27, fifty days after the dissipation of Tropical Depression Annette, an area of clouds southwest of Manzanillo developed a closed circulation and became a tropical depression. The next day, it strengthened into a tropical storm. Heading generally west northwest, Bonny peaked in intensity on July 28. It weakened after that, and dissipated July 30. Bonny never came near land and caused no known impact. Hurricane Celeste On August 6, a tropical disturbance developed into a tropical storm, skipping the depression stage. It edged south until August 8. At that point, it turned to the west. It would continue in that general direction until it dissipated. Celeste intensified into a hurricane on August 10. It then left the Eastern Pacific Hurricane Center's area of responsibility and entered the central Pacific. Celeste continued intensifying and eventually peaked as a Category 4 hurricane on the Saffir–Simpson hurricane scale. Celeste's Category 4 winds and central pressure of 940 millibars (940 hPa) made it the most intense cyclone of the season. After that, Celeste steadily weakened. After turning north, it dissipated on August 22 due to wind shear. Celeste harassed several ships during its existence. The most serious incident involved a sailing vessel called the Regina Marina. On August 9, that ship was flooded and had to issue a distress call. It was spotted by a hurricane hunter and was reached and towed to safety by another ship, the Vishea Trith, and later on, the USCGC Mellon.