BMKG: Heavy rain and strong winds to hit Java, Bali, NTB-NTT tomorrow
Jakarta — The Meteorology, Climatology, and Geophysics Agency (BMKG) has warned of potential rain with moderate to heavy intensity, as well as strong winds and high waves across Java, Bali, extending to West Nusa Tenggara (NTB) and East Nusa Tenggara (NTT) tomorrow, Thursday 6 March 2026.
Wind gusts of up to 63 km/h (34 knots) are forecast in some areas, particularly along the southern coasts of Central Java, Yogyakarta, East Java, Bali, NTB and NTT.
This condition is influenced by the presence of Tropical Cyclone 90S, currently located in the southern Indian Ocean southwest of Lampung. Accordingly, BMKG emphasises that social media claims about Tropical Cyclone 25S are not accurate.
Plt. Deputy for Meteorology Andri Ramdhani explained that BMKG, via TCWC Jakarta, has monitored the formation of the Tropical Cyclone 90S since 27 February 2026 at 19:00 WIB in the Indian Ocean, southwest of Lampung, and has issued statements regarding the active “cyclone seeds” in the Indian Ocean at present.
‘Based on the latest analysis as of 5 March 2026, the centre of circulation of the tropical cyclone seeds was observed at approximately 10.9°S, 113.2°E, in the southern Indian Ocean south of East Java. The maximum wind speed currently observed is 45 knots (85 km/h) with a minimum sea-level pressure of 992 hPa,’ Andri said when contacted by CNBC Indonesia on Thursday 5 March 2026.
Andri added that the Tropical Cyclone 90S seeds are expected to affect Indonesia’s weather conditions until 07:00 WIB on 6 March 2026.
‘Potential impacts include rainfall with moderate to heavy intensity in West Java, Central Java, Special Region of Yogyakarta, East Java, Bali, NTB and NTT,’ he said.
‘Additionally, the cyclone seeds could cause strong winds in several regions: Central Java, Yogyakarta, East Java, Bali, NTB and NTT,’ he added.
The presence of Tropical Cyclone 90S seeds is predicted to trigger high waves in several Indonesian waters.
For sea conditions, rough seas are expected in:
Moderate wave heights (1.25–2.5 m) in the Indian Ocean west of the Mentawai Islands to Bengkulu, the Java Sea, the Bali Sea, the Sumbawa Sea, the southern Makassar Strait, and the Flores Sea
High wave heights (2.5–4 m) in the Indian Ocean west of Lampung to DI Yogyakarta and the Sawu Sea
Very high wave heights (4–6 m) in the southern Indian Ocean from East Java to NTT.
‘BMKG urges the public to stay updated with official weather information and early warnings through BMKG’s official channels: the infoBMKG app, Instagram @/infoBMKG, the BMKG website, the TCWC Jakarta website, and the YouTube channel infoBMKG,’ Andri said.