 A tropical wave moved off the coast of Africa on September 17. It moved across the shear-ridden Atlantic Ocean without development, and remained disorganized until reaching the western Caribbean Sea on September 26. There, the wave situated itself beneath an upper-level anticyclone, allowing for favorable upper-level outflow and for deep convection to develop. 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.
