The storm that eventually became Hurricane Ismael started off the southern coast of Guatemala on September 9.
As it grew, it moved to the west-northwest.
After a few days with no activity, a low pressure area developed off the coast of Mexico.
Late on September 12, it formed into Tropical Depression Ten.
At this time, the storm was about 350 miles (560 km) south-southwest of Manzanillo, Colima.
The depression moved to the northwest, and strengthened to a tropical storm early on September 13.

Because of the influence of a nearby weather system over Baja California, Ismael slowly turned to the north.
Tropical Storm Ismael became stronger as it moved northward.
Ismael continued to grow, and on September 14, it became a hurricane.

An eye began to form inside of the storm, and six hours after becoming a hurricane, it reached its peak strength.
Ismael then sped up as it moved to the northwest.
The storm passed just east of Cabo San Lucas on September 15.
The hurricane made landfall in the state of Sinaloa on September 15.
Ismael quickly lost strength over land, and it died out on September 16.
The remains of Ismael continued moving to the north.
Rain from the storm reached parts of the United States.
The storm that eventually became Hurricane Ismael started off the southern coast of Guatemala on September 9. As it grew, it moved to the west-northwest. After a few days with no activity, a low pressure area developed off the coast of Mexico. Late on September 12, it formed into Tropical Depression Ten. At this time, the storm was about 350 miles (560 km) south-southwest of Manzanillo, Colima. The depression moved to the northwest, and strengthened to a tropical storm early on September 13.
Because of the influence of a nearby weather system over Baja California, Ismael slowly turned to the north. Tropical Storm Ismael became stronger as it moved northward. Ismael continued to grow, and on September 14, it became a hurricane.
An eye began to form inside of the storm, and six hours after becoming a hurricane, it reached its peak strength. Ismael then sped up as it moved to the northwest. The storm passed just east of Cabo San Lucas on September 15. The hurricane made landfall in the state of Sinaloa on September 15. Ismael quickly lost strength over land, and it died out on September 16. The remains of Ismael continued moving to the north. Rain from the storm reached parts of the United States.
Hurricane Ismael