 The origins of Hurricane Fausto were in a westward @-@ traveling tropical wave that moved off the eastern coast of Africa on July 4 . Little development occurred as the wave traversed the Atlantic basin . It entered the eastern Pacific basin on July 12 after crossing Central America and began to show signs of development the next day . The system westward movement became slightly erratic on July 14 as development slowed . The following day , the system became increasingly organized and a tropical depression , which was designated 07 @-@ E , formed about 550 mi ( 890 km ) southeast of Acapulco , Mexico . The depression maintained an area of deep convection around the center of circulation and was located within an area of moderate wind shear . An area of high pressure located over the southwestern United States was forecast to steer the system towards the northwest for most of its existence . A mid @-@ level ridge located to the north of the depression caused it to rapidly travel towards the west at 23 mph ( 37 km / h ) for most of July 16 . 
