A tropical disturbance north of the Samoan islands is expected to intensify.
The National Weather Service in American Samoa says conditions are expected to worsen during the day,
A forecaster, Carol Maafala Baqui, says there is plenty of time to take precautions before winds get stronger.
"Our computer models continue to bring the circulation just closing in near Tutuila and Manu'a before the end of the week."
Carol Maafala Baqui