https://phys.org/news/2018-06-nasa-ewiniar-south-china-sea.html

The VIIRS image showed that Ewiniar's center was just northeast of Hainan Island, China. Bands of thunderstorms from Ewiniar's southwestern quadrant blanketed Hainan Island.

On June 6 at 1500 UTC (11 a.m. EDT) Ewiniar regained strength in the warm waters of the South China Sea, and has for the second time become a tropical storm. Maximum sustained winds were near 40 mph (35 knots/65 kph).