The activity of Asia monsoon (wind which is blowing periodically) is still predicted to occur in the next three days. This could trigger the even dispersion of rain cloud in South Sumatra, Lampung, Bengkulu, most of Java, Bali and Nusa Tenggara.
The monsoon activity would cause high rain intensity in several areas. It would also affect the increase of wind velocity and the height of sea waves in South China Sea, Karimata Strait, Flores Sea, Timor Sea, Sawu Sea and Banda sea.
"The rain intensity in Jakarta is still quite high for the next three days, especially the occurrence of rain at dawn prior to morning," said Sri Woro, Head of Meteorology, Climatology and Geophysics Board (BMKG), Thursday (1/17).
Meanwhile, based on the analysis on atmosphere dynamics for the next week, Asia monsoon would occur again in the next 7-10 days. The prerequisite for the occurrence of Asia monsoon is the increase of air pressure in Central Asia and the forming of low pressure wind in Australia and the surrounding areas.
"If the precondition is fulfilled, it is predictable for a period of one week ahead, where there is the potential for increased rainfall in Java, Bali and Nusa Tenggara," he told.
BMKG also issued an early warning to public to be alert against heavy rain accompanied by lightning and strong winds that will fall on January 15-21. Besides Jabodetabek area, its warning also applies on the east and south sides of South Sumatera, Bangka Belitung, Lampung on the south and east sides, Bengkulu on the south side, East Kalimantan on the north side, Banten on the north, east, and south sides, West Java, Central Java on the east and south sides, East Java, Bali, NTB, NTT, West Sulawesi, Central Sulawesi on the south side, South Sulawesi on the central and south sides, Southeast Maluku as well as Papua on south side.