The storms are expected to become weaker in the coming days, but another tropical depression is forecasted to form later in the week.

A tropical storm is a tropical cyclone that has maximum sustained winds of between 39 and 73 mph – a step above a tropical depression.

Wutip was a tropical storm in the Gulf of Tonkin Friday evening China Standard Time, the Joint Typhoon Warning Center said in its latest advisory. The tropical storm had sustained wind speeds of 69 miles per hour.

A typhoon changed its path and landed in southern China's Hainan island at a severe tropical storm level. Its maximum sustained winds is 30 meters (98 feet) per second.

National Hurricane Center forecasters on June 8 said tropical activity in the Atlantic, Caribbean or Gulf of America is unlikely for now.

Tropical storms feed off heat and moisture, and that begins with warm ocean water—at least 80°F (27°C). But it’s not just about the surface. That warmth needs to extend 150 feet or more below the surface to sustain a growing storm.

Tennessee agriculture officials toured storm-damaged areas, assessing recovery needs after Tropical Storm Helene.

Severe Tropical Storm Wutip entered within 800km of Hong Kong, but is expected to make landfall later on Saturday, forecaster says.