China’s typhoon season is now in high-gear and the mainland will spend much of the next month tracking storms moving into the South China Sea.

Typhoon Nari is the next one, following Usagi — dubbed a super typhoon by the local weather service — and most recently by Fitow. Nari is currently tracking along the Vietnam coast at wind speeds of 105 miles per hour. It will head north into the South China Sea, expecting to bring with it waves of 10 feet high as the storm heads into the Guangxi province on the north Vietnam border.

The storm is expected to hit landfall on Saturday afternoon. There is a 12 hour time zone difference between New York and Hong Kong.

China’s National Marine Environmental Forecasting Center issued a yellow alert for Nari, the second weakest of the country’s four coded alert system. The center also warned fishing boats not to venture out on Friday as severe weather conditions are expected in the South China Sea.

Transportation in the country’s main urban centers is functioning normally.

This is the 25th typhoon to hit China this year, the Center said.

Typhoons are tropical cyclones similar to hurricanes that develop in the Pacific Ocean.