Mexican authorities have begun evacuating residents ahead of the arrival of Hurricane Patricia. The storm is comparable to Typhoon Haiyan, which killed 6,300 people in the Philippines in 2013, the World Meteorological Organization says. A state of emergency has been declared in three states in Patricia’s path.

Some 400,000 people live in vulnerable areas, according to Mexico’s National Disaster Fund. The hurricane, which will bring torrential rain, could trigger flash floods and mudslides.  Patricia will make landfall in the western state of Jalisco, home to the resort town of Puerto Vallarta, which could lie directly in its path.

The town’s airport, along with two others in the path of the storm, were closed. Schools have been closed in Jalisco, Colima and Guerrero states.

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