Jakarta, Indonesia Sentinel — Indonesia’s Meteorology, Climatology, and Geophysics Agency (BMKG) has issued a warning for several regions to brace for heavy rainfall amid peak rainy season early February.
According to CNN Indonesia, BMKG warns peak rainy season in early February, which could trigger hydrometeorological disasters. “As Indonesia enters the peak of the rainy season from late January to early February, residents in disaster-prone areas are urged to remain vigilant.”
In an official statement, BMKG attributed the heightened risk to several atmospheric factors, including increased humidity across Indonesia due to the strengthening of the Asian Monsoon and a significant cold surge phenomenon.
While the ongoing La Niña event remains weak, it continues to contribute to higher rainfall, particularly in tropical areas.
Additionally, the Madden-Julian Oscillation (MJO), which is currently active in western Indonesia, along with other equatorial atmospheric waves such as the Equatorial Rossby and Kelvin waves, are fueling convective cloud formation, increasing the likelihood of heavy downpours.
Cyclonic circulations detected in multiple locations, including the Karimata Strait, Halmahera Sea, Arafura Sea, and the Indian Ocean south of Java, further amplify the potential for intense rainfall in these areas.
“The combination of these atmospheric phenomena increases the risk of hydrometeorological disasters such as floods, landslides, and strong winds capable of toppling trees,” BMKG stated.
Early Warning
According to BMKG, the convergence of cold-air surges, cyclonic circulations, wind convergence, and deflection is expected to enhance rainfall activity in several regions, including Aceh, North Sumatra, Lampung, Jakarta, West Java, Central Java, East Java, Bali, West Nusa Tenggara, East Nusa Tenggara, Kalimantan, Sulawesi, Maluku, and Papua.
This pattern underscores the importance of preparedness for potential extreme weather events across the country.w
Weather Forecast for January 31 – February 3, 2025 BMKG forecasts generally light rain during this period, while moderate to extreme rainfall—potentially accompanied by thunderstorms and strong winds—is expected in the following regions:
- Moderate to heavy rainfall: West Sumatra, Riau, Riau Islands, Bengkulu, Banten, Jakarta, West Java, Yogyakarta, Bali, West Nusa Tenggara, East Nusa Tenggara, West Kalimantan, East Kalimantan, North Kalimantan, North Sulawesi, Central Sulawesi, South Sulawesi, Southeast Sulawesi, North Maluku, Southwest Papua, West Papua, Central Papua, Highland Papua, Papua, and South Papua.
- Heavy to very heavy rainfall: Central Java, East Java, and Central Kalimantan.
- Strong wind potential: East Java, East Nusa Tenggara, Maluku, South Papua, and West Papua.
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As Indonesia enter peak rainy season from late January to Early February, authorities urge residents to take necessary precautions, stay updated on official advisories and braces for extreme weather.
(Raidi/Agung)
