Heavy rainfall and strong storm surge contributed to flooding that damaged many roads; throughout the region, 800 people were forced from their homes.

The system quickly developed deep convection and a low-level circulation, and on September 1 it organized into Tropical Depression Nine-E while located about 170 miles (270 km) off the southwest coast of Mexico.

Under favorable conditions, the depression slowly strengthened to become Tropical Storm Henriette on September 2 while located 220 miles (350 km) west of Manzanillo.

[1] Upon reaching hurricane status, one computer model predicted Henriette to continue moving northward through the Gulf of California, though most forecast a turn to the northwest.

[4] The eye became better defined the next day, and Henriette attained a peak intensity of 100 mph (160 km/h) as the northern portion of the eyewall moved over southern Baja California Peninsula.

The hurricane quickly crossed the southern tip of Baja California Peninsula and emerged into the Pacific Ocean again as a weakened 85 mph (137 km/h) cyclone with disrupted convection near the center.