Larry formed in early October from an extratropical storm in the Bay of Campeche, and reached a peak intensity of 65 mph (105 km/h).

It moved across the shear-ridden Atlantic Ocean without development, and remained disorganized until reaching the western Caribbean Sea on September 26.

On the September 27, a low pressure area developed while the system was located a few hundred miles to the east of the Yucatán Peninsula.

The system continued to organize, and nearly developed into a tropical depression before moving ashore on the Yucatán Peninsula on September 29.

[2] Dry air and land weakened the tropical wave, and when it entered the area of the Bay of Campeche, it merged with a stationary frontal boundary.

[2] The remnants of Larry re-organized somewhat in the eastern Pacific, with the National Hurricane Center indicating for the possibility of redevelopment into a tropical depression on October 9.

[4] Due to its erratic motion, the Mexican government issued a Tropical Storm Warning and a Hurricane Watch early in Larry's lifetime from Veracruz to Campeche.

[6] In addition, the storm closed shipping ports in Dos Bocas [es] in Tabasco, Coatzacoalcos in Veracruz, and Cayo Arcas in Campeche.

The Mexican government placed six coastal states on maximum alert,[5] while authorities set up 75 evacuation shelters for around 1,500 people.

The worst of Larry's effects came from its rainfall, peaking at 24.77 inches (629 mm) in Upper Juarez in southeastern Mexico.