Puerto Vallarta under hurricane watch as Patricia strengthens

UPDATE:
This story was published Thursday, October 22 at 9 AM. Hurricane Patricia is now a Category 5 storm expected to make landfall between Puerto Vallarta and Colima on Friday, October 23. Read more about Hurricane Patricia here.

ORIGINAL STORY:

Patricia has strengthened to a hurricane as it nears Mexico's Pacific coast and forecasters say it will keep getting stronger.

Patricia's maximum sustained winds increased Thursday morning to near 90 mph (150 kph). Additional . . .