The most affected city was Acapulco, Guerrero, where six people were killed by landslides, and where over 100 families had to be evacuated after the La Sabana River flooded.

Henriette made its first landfall east of Cabo San Lucas at peak intensity, causing the death of one woman due to high surf.

Early on August 30, the area of low pressure, now 400 miles (640 km) south-southeast of Acapulco, Mexico, started to gain clusters of strong convection.

By the afternoon of August 30 the system continued to show strong convection and had developed a broad but well defined area of low to mid level cyclonic turning.

[1] Henriette continued to improve in structure and with the formation of a distinct eye feature, reached hurricane strength on September 4 as it turned north-northwestward toward the Baja California peninsula, ahead of a mid-latitude trough approaching the west coast of the United States.

[5] The hurricane reached its peak intensity of 85 mph (135  km/h) that morning while centered about 75 miles (120 km)south-southeast of Cabo San Lucas.

The flow of moisture originating from these remnants, moderate instability, and marginal shear contributed to flash flooding and severe thunderstorms.

[1] On August 31, 2007, the National Meteorological Service in Mexico decreed zone of alert from Lagunas de Chacahua, Oaxaca to Cabo Corrientes, Jalisco.

It requested the public to take precautions before the possible coming of rain, intense winds and storm surges in the south and southwestern coasts of Mexico.

Faced with the prospect of Henriette strengthening, The Head of the Harbor Bay in Acapulco stopped all travel for small craft and coastal fisheries.

[12] In La Paz, the Municipal Direction of Civil defense informed that the first of 13 temporary shelters would be opened and anticipated the evacuation of more than 2000 people that lived in high-risk zones.

Though the storm never passed closer than 70 mi (110 km) to the town, heavy rains along the coast saturated the ground, leading to mudslides.

[16] Jorge Antonio Pacheco Albert, Director of Civil Protection for the Port of Acapulco, reported that approximately 800 were injured during the passage of Henriette along the coast and that 337 people relocated to temporary shelters.

The storm's precipitation flooded nearby agricultural fields, stopping wheat production, forcing local government to fumigate the region to try to prevent a dengue fever outbreak.