The eastern Pacific hurricane region covers the eastern Pacific Ocean east of 140°W north of the equator. This area is one of the most prolific tropical storm formation regions in the world. Eastern Pacific storms most often track westward over open waters, sometimes reaching Hawaii and beyond. However, some storms occasionally head toward the northeast, bringing rainfall to the arid southwestern United States during the summer months. Some storms can also affect western Mexico or Central Am...| www.cpc.ncep.noaa.gov