Tropical Depression Twenty Three-E formed from a disturbance on October 7. In an environment over warm waters (86 °F), it rapidly intensified, reaching Tropical Storm intensity the same day it formed. Waldo moved towards the Mexican coast. Just after peaking as a Category 2 hurricane on the hurricane scale, Waldo made landfall southwest of Culiacán. Waldo rapidly dissipated over land. Major damage, but no deaths were reported in Mexico. It was the season's lone landfall.