Residents in Hainan are preparing for a strong typhoon that is expected to hit the South China Sea island province on Tuesday.

Typhoon Kalmaegi, which made landfall in the northern Philippines on Sunday night, is gaining intensity as it moves northwest toward Hainan Island and southern Guangdong province, according to a warning issued by the China Meteorological Administration on Monday.

When it makes landfall between Yangjiang in Guangdong and Wanning in Hainan on Tuesday, wind speed is expected to reach 180 km/h and up to 400 centimeters of rain will fall in some coastal areas, according to the administration.