 By early on July 9, while south of Puerto Rico, Claudette quickly strengthened over the warm waters of the Caribbean, and its strongest winds were just shy of the threshold for hurricane intensity. Possibly due to its fast forward motion, the storm became disorganized and weakened. Conditions briefly became more favorable over the western Caribbean, and Claudette reached hurricane status for six hours on July 10. Soon after, the storm encountered unfavorable upper-level winds and weakened back into a tropical storm. In response to a break in the subtropical ridge — a high-pressure ridge that often prevents tropical systems from moving northward — it turned to the west-northwest. Claudette made its first landfall at Puerto Morelos on the Yucatán Peninsula on July 11 as a tropical storm with 60 mph (100 km / h) winds.
