The Meteorology, Climatology, and Geophysical Agency (BMKG) has\nwarned of significant weather conditions persisting across several\nIndonesian regions from 26 May to 1 June 2026. Activity from Tropical\nDisturbance 99W and atmospheric waves is expected to trigger heavy\nrainfall, lightning, and strong winds in various areas, even as some\nregions enter the dry season.<\/p>\n
In its weekly weather forecast, BMKG noted that current atmospheric\nconditions are influenced by regional and global dynamics, including the\nMadden-Julian Oscillation (MJO), Kelvin waves, Equatorial Rossby waves,\nand the formation of several cyclonic circulations around Indonesia.\n\u2018Regional atmospheric dynamics still pose a risk of rain cloud\ndevelopment, particularly in northern Indonesia,\u2019 BMKG stated.<\/p>\n
Maximum temperatures exceeding 35 degrees Celsius were recorded in\nAceh, Riau, Bali, Kalimantan, Central Sulawesi, West Papua, and East\nJava from 21-24 May 2026 due to minimal cloud cover causing intense\nsurface heating. Meanwhile, heat accumulation has also led to\natmospheric instability, promoting rain cloud formation in the late\nafternoon and evening in transitional season areas.<\/p>\n
BMKG reported heavy to very heavy rainfall in recent days in West\nKalimantan (129.5mm\/day), Jakarta (102.4mm\/day), Bengkulu (96.4mm\/day),\nMaluku (88.4mm\/day), and West Java (86.9mm\/day). Tropical Disturbance\n99W is forecasted to be north of Papua New Guinea, creating a\nconvergence zone from West Papua to Cendrawasih Bay. Cyclonic\ncirculations are also expected off the west coast of West Sumatra,\nsouthwest of Banten in the Indian Ocean, and in the Sulu Sea.<\/p>\n
From 26-28 May, moderate to heavy rain is possible in Aceh, West\nSumatra, Riau, Riau Islands, Jambi, South Sumatra, Bengkulu, Lampung,\nBanten, Central Java, East Java, Kalimantan, Sulawesi, Maluku, and\nPapua. BMKG has issued a heavy rain alert for North Kalimantan, North\nMaluku, and Papua Highlands, with strong winds likely in Aceh, East\nJava, West Nusa Tenggara, East Nusa Tenggara, Maluku, and Papua.<\/p>\n
From 29 May to 1 June, moderate rain is expected in Aceh, Riau, East\nJava, West Kalimantan, North Kalimantan, Sulawesi, Maluku, and Papua,\nwith a heavy rain alert remaining in Papua Highlands. BMKG urges the\npublic to remain vigilant against hydro-meteorological disasters such as\nfloods, waterlogging, fallen trees, and lightning strikes. Residents are\nadvised to limit outdoor activities during heavy rain with strong winds\nand regularly check official BMKG weather updates.<\/p>", "url": "https:\/\/jawawa.id\/newsitem\/bmkg-heavy-rain-and-strong-winds-still-possible-in-several-regions-1779892127", "image": "" }, "sponsor": "Okusi Associates", "sponsor_url": "https:\/\/okusiassociates.com" }