"Bud is moving within an environment of low wind shear, moist air, and warm ocean water", said AccuWeather Hurricane Expert Dan Kottlowski. It was located about 255 miles from Manzanillo, Mexico, the National Hurricane Center said. Environmental conditions could become slightly conducive for some development when the system moves into the southwestern Gulf of Mexico by the end of the week.
Southwestern Mexico should expect several inches of rainfall from Bud, with the possibility of ten inches in certain areas.
Mexican experts said Bud - the second hurricane of the Pacific season - could make landfall on Friday in the tourist haven of Cabo San Lucas, but as a tropical storm.
Forecasters have warned Hurricane Bud will produce heavy rain which could cause life-threatening flash flooding and mudslides, especially in high-terrain areas. The storm categories, in increasing strength, are tropical depression, tropical storm and hurricane.
It is expected to have weakened to a tropical storm by the with periods of rain and gusty winds.