Thunderstorm activity along the Intertropical Convergence Zone
became concentrated south of the Gulf of
Tehantepec on May 19. The system moved westward, spreading light to moderate rains across southern Mexico
as it slowly organized. Early on the morning of the 21st, the system became well-enough organized to be called
a tropical depression while south of Manzanillo. The system moved westward, before deteriorating on the 22nd,
dissipating early on the morning of the 23rd. The storm total rainfall maps below for this depression were
constructed using data from the Comision Nacional del Agua, parent agency of Mexico's National Weather Service.