Jakarta, Indonesia Sentinel — As New Year’s Eve 2025 approaches, heavy rainfall accompanied by lightning, thunderstorms, and strong winds is forecasted across Java and Bali. The reports were announced by the Meteorology, Climatology, and Geophysics Agency (BMKG) as Indonesia alert for weather conditions.
According to CNN Indonesia, in the weekly weather outlook for December 27, 2024, to January 2, 2025, BMKG warned of ongoing extreme weather conditions that could trigger hydrometeorological disasters in several regions of the archipelago.
BMKG reports over the past few days, heavy rainfall has already caused floods in Kulon Progo (Yogyakarta), Serang (Banten), and Banyumas (Central Java), as well as landslides in Sukabumi (West Java), Sragen, and Wonogiri (Central Java).
Extreme Weather Factor
BMKG data showed that rainfall in the past week exceeded 100 mm per day in some areas, including Manokwari (143 mm/day) and Padang (120 mm/day). As a result, heavy to very heavy rainfall is expected in Jakarta, West Java, Central Java, Yogyakarta, East Java, and Bali.
The extreme weather is attributed to multiple atmospheric phenomena, including the strengthening Asian Monsoon winds, active atmospheric waves, and a weak La Niña, which has increased rainfall across parts of Indonesia.
“The weak La Niña phenomenon is one of the factors contributing to increased rainfall in several regions of Indonesia,” BMKG stated in its report on Friday, December 27, as reported by CNN Indonesia.
The agency explained that the situation is exacerbated by a tropical cyclone seed and cyclonic circulation in the southern Indian Ocean, creating atmospheric dynamics that support heavy rain between December 27, 2024, and January 2, 2025.
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During this period, moderate to very heavy rainfall, accompanied by lightning and strong winds, is forecasted across Java, Bali, and Nusa Tenggara.
BMKG alert that the combination of these weather phenomena is expected to persist through New Year’s Eve in Indonesia. BMKG urged the public to remain vigilant against potential hydrometeorological disasters, including floods, landslides, and strong winds, as weather conditions remain unpredictable.
(Raidi/Agung)
