JAKARTA - The Meteorology, Climatology and Geophysics Agency (BMKG) predicts that the weather in a number of regions in Indonesia will generally be cloudy and rainy with light to moderate intensity on Saturday, June 13.
In the official BMKG broadcast, quoted by Antara, for the western region, cloudy weather is predicted to occur in Banda Aceh, Pekanbaru, Jambi, and Jakarta.
Meanwhile, Medan, Padang, Tanjung Pinang, Pangkal Pinang, Palembang, Serang, Bandung, Semarang, Yogyakarta, Surabaya, Pontianak, Tanjung Selor, Samarinda, Palangka Raya, are expected to rain with light to moderate intensity.
"Meanwhile, Bengkulu, Bandar Lampung, and Banjarmasin, are predicted to experience heavy rain accompanied by lightning," said BMKG Praktirawan Ina Indah.
In the eastern region, light to moderate intensity rain is potentially occurring in Denpasar, Mataram, Makassar, Kendari, Mamuju, Palu, Gorontalo, and Ternate. Meanwhile, Kupang is cloudy and Manado is predicted to be heavy rain accompanied by lightning.
Likewise, Ambon, Sorong, Manokwari, Nabire, and Jayawijaya, are predicted to rain with light to moderate intensity. Meanwhile, Jayapura and Merauke are predicted to be cloudy.
Through this weather forecast, he said, the public is urged to remain vigilant when carrying out activities outdoors and can monitor weather developments through the BMKG Info application or official social media account @infobmkg.
BMKG said that the prediction of the season in Indonesia has a very high level of complexity due to the influence of the interaction of three large-scale marine factors as well as unique local geographical characteristics.
The Deputy for Climatology of the BMKG, Ardhasena Sopaheluwakan, explained that the three major ocean factors include the surface temperature conditions of the waters of the Nusantara, the Indian Ocean Dipole (IOD) phenomenon in the Indian Ocean, as well as El Nino and La Nina in the Pacific Ocean.
"The sea surface temperature of Indonesian waters affects the character of the next one or two months. Then the Indian Ocean with IOD has an influence on rainfall, especially in the west, as well as the Pacific Ocean with El Nino and La Nina which affects rainfall on an inter-annual scale," he said.
He explained that this factor becomes much more complicated when interacting with Indonesia's geographical conditions which are in the form of an archipelago and have many mountain ranges in the middle of the island.
The topographical condition creates many local climate anomalies that are very specific, such as the western coastal area of Sumatra, whose rainfall is affected by Bukit Barisan, so that it has characteristics that are opposite to the region on the eastern side, such as Riau and Jambi.
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