[1] The monsoon trough spawned a tropical depression on June 23 near Guam.
It tracked westward, becoming a tropical storm that night and slowly strengthened as it continued westward due to vertical wind shear.
[1][3][4] Mindulle caused 56 deaths and property damage estimated around $833 million (in 2004 USD) in Philippines and Taiwan.
[1] In the Philippines, floods left more than 30 dead and more than 10 missing persons.
[5] In southern Taiwan, flooding was the worst experienced in the previous 25 years, with some areas reaching 1.5 m of precipitation over several days, resulting in 22 deaths and 14 missing persons.