Hurricane Otis: Know the speed of the 'devastating' storm in Mexico

Source: Social media 

The US National Hurricane Center (NHC) warned that Hurricane Otis had become a Category 4 "extremely dangerous" hurricane.

Source: Social media 

Because it is moving rapidly towards the Pacific coast of southern Mexico

Source: Social media 

The NHC said the storm's winds were now near 233 km/h, the BBC reports.

Source: Social media 

This storm will become a "potentially destructive" Category 5 storm on Wednesday.

Source: Social media 

Hurricane warnings are now in effect for a 350km stretch of coastline between the coastal cities of Zihuatanejo and Punta Maldonado in Guerrero state.

Source: Social media 

Up to 15 inches of rain is expected Friday in western coastal areas of Guerrero and neighboring Oaxaca state.

Source: Social media 

While schools have been closed across the state, officials in Guerrero are setting up emergency shelters ahead of the storm's arrival.

Source: Social media