Tropical Storm Helene threatens Florida, placing most of the state on high alert as it is one of the strongest storms to make landfall in the United States in over a year, according to CNN.

Major Hurricane John made landfall on Monday night as a Category 3 storm along Mexico's Pacific coast where forecasters are warning of flash flooding and life-threatening conditions.

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.

Hurricane John is forecast to bring severe weather to the southern Mexico coast, including life-threatening flash flooding. Track its path.

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

Hurricane John struck Mexico’s southern Pacific coast with life-threatening flood potential after growing into a major hurricane in a matter of hours. It came ashore near the town of Punta Maldonado late Monday night as a Category 3 storm with maximum sustained winds of 120 mph (190 kph).

The National Hurricane Center said Monday it is tracking a system in the Gulf of Mexico that could become Tropical Storm Helene in the coming days.

By Jose Cortes MARQUELIA, Mexico (Reuters) -Hurricane John threatened southwestern Mexico with severe flooding on Tuesday evening even as it weakened on its trek inland after leaving three people dead and causing severe damage.