Head of the Meteorology, Climatology and Geophysics Agency (BMKG), Dwikorita Karnawati, highlighted the increasing hydrometeorological disasters that hit a number of regions in Indonesia due to the weak La Nina phenomenon.
"La Nina is an anomaly of sea surface temperature in the Pacific Ocean that is cooler than usual, and now has an impact on increasing rainfall," Dwikorita explained in his official statement, Monday, December 23.
According to him, this phenomenon increases the intensity of rainfall in most parts of Indonesia by 20'40 percent compared to last year, which was influenced by dry El Nino.
Apart from La Nina, various atmospheric dynamics play a role in extreme weather, such as cyclone seeds, Rossby waves, Madden-Julian Oscillation (MJO), Kelvin waves, and the potential for cold surge from Siberia. This combination triggers heavy rain, strong winds, and high waves, which are projected to continue until Christmas and New Year (Nataru) celebrations.
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Dwikorita emphasized that the BMKG since November 2024 has routinely issued early warnings regarding the potential for hydrometeorological disasters to anticipate the adverse effects that can occur.
"People are advised to increase their vigilance, especially those in disaster-prone areas such as floods, landslides, and strong winds," he concluded.
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