text:  On Wednesday, nearly 1,000 people were in shelters, according to Jamaican officials. The storm is now headed toward Mexico's Yucatan Peninsula, where it is expected to hit early Friday. More than 400,000 tourists are currently vacationing in the region. In preparation, officials have opened up temporary shelters, banned alcohol sales, and evacuated people from small coastal communities. In Tulum, Mexico's Navy patrolled the streets, advising tourists to prepare for the storm's arrival. For NPR News, I'm Emily Green.