The storm was about 1,410 miles southwest of the tip of Baja California early Sunday and there were no Coastguards or warnings in place.
CNN meteorologist Robert Shackleford said the storm is heading west at 25km / h and is expected to hit the state around Friday.
While it will most likely approach Hawaii as a tropical storm with weaker winds, it will still bring much rainfall. But it's too far away to determine the rain potential, he said.
Behind Erick, another tropical depression has formed that is likely to become a hurricane in two or three days, the National Hurricane Center said late Sunday morning. It is expected to be a tropical storm on Sunday.
The tropical depression was on Sunday morning off the south coast of Mexico, moving about 34 km / h (west-northwest).