[1] Early on June 1, the disturbance became better defined,[2] and shortly thereafter the National Hurricane Center (NHC) classified it as a tropical depression while located 460 mi (740 km) southwest of Acapulco.

[2] Based on a combination of ship data and Dvorak intensity estimates, the system was upgraded into Tropical Storm Agatha on June 2.

[4] By the afternoon of June 2, the center exhibited an elongated appearance within its associated central dense overcast, a large area of organized mid-tropospheric convection.

[6] Maintaining its peak intensity for 30 hours, Agatha gradually decelerated as it passed within 100 mi (160 km) southwest of the Mexican coast.

In light of this, a tropical storm warning and hurricane watch were issued for the Pacific coast of Mexico between Tenexpa to Cabo Corrites around 2100 UTC that day.

[12] Although the center of Agatha remained offshore, heavy rains within the system's outer rainbands impacted southwestern and central Mexico.