INDOPOSCO.ID – The Meteorology, Climatology, and Geophysics Agency (BMKG) forecasts that most major cities across Indonesia are likely to experience cloudy conditions and light rainfall on Monday (February 2, 2026).
According to BMKG’s weather early warning system, in the Sumatra region, major cities expected to see light to moderate rain include Medan, Bengkulu, Padang, Pekanbaru, Jambi, Palembang, and Bandar Lampung. Meanwhile, Aceh and Tanjung Pinang are forecast to be cloudy.
“For Java Island, light to moderate rain is expected to occur fairly evenly across Banten, Jakarta, Bandung, Semarang, Yogyakarta, and Surabaya,” said BMKG forecaster Medayu Bestari in a broadcast monitored from Jakarta.
In Kalimantan, Palangkaraya, Samarinda, and Pontianak are forecast to experience light rain. Meanwhile, Banjarmasin and Tanjung Selor may see heavy rain accompanied by lightning.
“Bali, Mataram, and Kupang are also expected to receive light rainfall,” he added.
In Sulawesi, light to moderate rain is likely to occur in Mamuju and Makassar. Kendari is expected to experience heavy rain accompanied by lightning, while Palu, Gorontalo, and Manado are forecast to be overcast.
Moving to the easternmost regions, cities such as Ambon, Sorong, Manokwari, and Jayapura are expected to be cloudy.
Meanwhile, Nabire and Jayawijaya are forecast to receive light to moderate rain, while Merauke may experience heavy rain accompanied by lightning.
BMKG emphasized that the Weather Modification Operations (OMC) being carried out in Indonesia are a measured, science-based disaster mitigation effort.
This step has been taken as a parallel response to declining environmental carrying capacity and increasing threats from climate change.
Previously, narratives circulating on social media claimed that continuous implementation of OMC could pose risks and act like a “time bomb.”
The circulating claims suggested that OMC could trigger other disasters, such as destabilizing weather conditions, forming cold pools, shifting or concentrating water in certain areas and causing major flooding, as well as creating a false sense of security.
In response, BMKG stressed that cold pools are entirely natural meteorological phenomena. They occur when rainwater evaporates beneath storm clouds, cooling the air and creating dense air masses that descend toward the surface. (aro)
