Antara News·Indonesia·Wednesday, November 4, 2026 at 08:53 AM UTC

BMKG issues extreme weather alert for several Indonesian regions

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M Riezko, Fauzul Azhim Bin Fakhrurazi

Jakarta (ANTARA) - Indonesia’s Meteorology, Climatology, and Geophysics Agency (BMKG) has urged the public and relevant stakeholders to remain vigilant against potential extreme weather, including rain accompanied by lightning and high waves, in several Indonesian waters.

BMKG forecaster Ranika said in a weather update monitored in Jakarta on Wednesday that atmospheric dynamics showed a cyclonic circulation had formed over the northern Pacific Ocean, north of Biak Island.

The circulation had triggered a zone of slowing winds and wind convergence over the waters, increasing the potential for rain-cloud formation, particularly in the Philippine Sea.

BMKG has also issued an early warning about the spread of cumulonimbus clouds, which could trigger significant weather in several areas, including the western Indian Ocean off Bengkulu and Mentawai, Aceh, North Sumatra, West Sumatra, Riau, Jambi, South Sumatra, the North Natuna Sea, the Karimata Strait, West Kalimantan, Central Kalimantan, West Papua, Central Papua, and Highland Papua.

Airlines and airport authorities have also been urged to continuously monitor the latest weather data to ensure flight safety.

Forecasts for several major Indonesian cities indicate that weather conditions will vary across the country.

Light rain is forecast in Banda Aceh, Medan, Pekanbaru, Tanjung Pinang, Padang, Jambi, Bengkulu, Palembang, Pangkal Pinang, Bandar Lampung, Serang, Jakarta, Semarang, Pontianak, Palangka Raya, Banjarmasin, Mamuju, Manado, Sorong, and Jayapura.

Surabaya, Kupang, Makassar, and Manokwari are expected to experience thick cloud cover, while Bandung, Yogyakarta, Denpasar, Mataram, Tanjung Selor, Samarinda, Palu, Gorontalo, Kendari, Ambon, Merauke, and Ternate may experience smoke or haze.

Special attention has also been drawn to the potential for thunderstorms in Nabire and Jayawijaya.

In its maritime early warning, BMKG said waves of 2.5 to 4 meters were possible in the western Indian Ocean off Bengkulu, the waters west of Lampung, and the southern Indian Ocean off East Java.

Coastal communities have also been advised to watch for tidal flooding, locally known as rob, which could affect coastal areas of West Java, Central Java, and West Nusa Tenggara, as well as the coasts of Central Kalimantan and South Kalimantan, amid extreme weather conditions during the current transitional season.

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