The Indonesian Meteorological, Climatological, and Geophysical Agency\n(BMKG) has warned of a strengthening trend in the Australian Monsoon.\nThis monsoon is noted for bringing dry air masses to parts of Indonesia,\nwhich will lead to reduced cloud formation. This condition is\nparticularly prevalent during the morning and afternoon, resulting in\nmore optimal sunlight reaching the earth\u2019s surface and maximum solar\nradiation.<\/p>\n
BMKG monitoring recorded that between 29\u201331 May 202le, maximum\ntemperatures exceeding 35.0\u201336.4 \u00b0C were recorded in North Sumatra,\nRiau, South Papua, Banten, and Central Sulawesi. However, the BMKG noted\nthat the Australian Monsoon is currently weaker than normal, meaning\nrainfall still occurs in several areas. Light to very heavy rainfall was\nobserved in various regions during the same period, with the highest\nrainfall recorded in Maluku (102.5 mm\/day), Central Sulawesi (70.5\nmm\/day), Jakarta (70.4 mm\/day), South Papua (63.0 mm\/day), North Sumatra\n(59.8 mm\/day), and Highland Papua (40.8 mm\/day).<\/p>\n
Furthermore, atmospheric dynamics such as Equatorial Rossby Waves,\nKelvin Waves, negative OLR anomalies, and the emergence of Tropical\nCyclone Jangmi near the Philippine Sea north of Papua are supporting\nincreased rainfall growth. Consequently, BMKG has issued a weather alert\neffective from Tuesday (2 June 2026) to next Monday (8 June 2026).<\/p>\n
BMKG\u2019s analysis of recent global climate indicators shows El Ni\u00f1o\nconditions in the Pacific Ocean, with a Ni\u00f1o 3.4 index of +0.67 and an\nSOI value of -14.7. This generally reduces rainfall potential across\nmost of Indonesia, though regional atmospheric dynamics may still\nsupport cloud growth, particularly in northern and eastern\nIndonesia.<\/p>\n
BMKG Early Warning:<\/p>\n
Period 2\u20134 June 2026:<\/p>\n
Weather is generally dominated by light to heavy rain. Moderate\nrainfall intensity is expected in Aceh, North Sumatra, West Sumatra,\nRiau, Riau Islands, Bangka Belintung, Banten, West Kalimantan, Central\nKalimantan, East Kalimantan, North Kalimantan, South Kalimantan, North\nSulawesi, Gorontalo, Central Sulawesi, West Sulawesi, South Sulawesi,\nNorth Maluku, Maluku, Southwest Papua, Central Papua, Highland Papua,\nand Papua.<\/p>\n
Alert for heavy-to-very-heavy rain: West Java.<\/p>\n
Alert for strong winds: Aceh, North Sumatra, Riau Islands, Central\nJava, DI Yogyakarta, East Java, East Nusa Tenggara, West Nusa Tenggara,\nWest Kalimantan, Central Kalimantan, North Sulawesi, Gorontalo, West\nSulawesi, South Sulawesi, Southeast Sulawesi, Maluku, Southwest Papua,\nand Central Papua.<\/p>\n
Period 5\u20138 June 2026:<\/p>\n
Moderate rainfall intensity is expected in Aceh, West Sumatra, Riau,\nBangka Belitung, Jakarta, West Java, West Kalimantan, Central\nKalimantan, East Kalimantan, North Kalimantan, North Sulawesi, West\nSulawesi, Gorontalo, South Sulawesi, Southeast Sulawesi, North Maluku,\nMaluku, Southwest Papua, West Papua, Central Papua, and South Papua.<\/p>\n
Alert for heavy-to-very-heavy rain: Highland Papua.<\/p>\n
Alert for strong winds: Aceh, Bangka Belitung, West Java, Central\nJava, DI Yogyakarta, East Java, West Kalimantan, Central Kalimantan,\nSouth Kalimantan, North Sulawesi, Gorontalo, West Sulawesi, South\nSulawesi, Southeast Sulawesi, Maluku, West Nusa Tenggara, East Nusa\nTenggara, Maluku, West Papua, Southwest Papua, Papua, Central Papua, and\nSouth Papua.<\/p>\n
Preparing for Hydrometeorological Disasters:<\/p>\n
BMKG has urged the public and stakeholders to increase vigilance\nagainst extreme weather that could trigger hydrometeorological\ndisasters. Motorists are also advised to be wary of heavy rain\naccompanied by lightning and strong winds, which could disrupt travel.\nAdditionally, the public is advised to be cautious of falling trees,\ncollapsing billboards, flooding, and lightning strikes by avoiding\nsheltering under trees, advertisements, or fragile structures.<\/p>\n
Separately, the Head of the BNPB Disaster Data, Information, and\nCommunication Centre, Abdul Muhari, issued a similar reminder. The BNPB\nurges the public to remain prepared for disasters triggered by extreme\nweather during the seasonal transition, such as strong winds, extreme\nrain, tornadoes, floods, and high waves. The public is also advised to\nremain alert to geological disasters like earthquakes and to prepare\nemergency disaster kits as a precautionary measure.<\/p>", "url": "https:\/\/jawawa.id\/newsitem\/indonesia-on-disaster-alert-bmkg-issues-warning-as-australian-monsoon-strengthens-1780868781", "image": "" }, "sponsor": "Okusi Associates", "sponsor_url": "https:\/\/okusiassociates.com" }