John struck Mexico’s southern coast on Monday night as a Category 3 hurricane after rapidly strengthening in the Pacific, triggering warnings of “life-threatening” floods and mudslides.

Two major weather systems are bringing heavy rain, high winds and more to Mexico’s southern Pacific coast on one side and the Caribbean on the other.

Tropical Storm Helene was rapidly strengthening in the Caribbean Sea and expected to become a hurricane Wednesday while moving north along Mexico's coast toward the U.S., prompting residents to evacuate,