Post On : December 28, 2022
MAIPARK is part of Disaster Resilient Indonesia. MAIPARK's mission emphasizes its role in dissemination and education on credible disasters to the National Insurance Industry. This includes the extreme weather warnings that are being talked about these days.
In general, Indonesia's weather system is influenced by the Asian Monsoon (wet airflow) and Australian Monsoon (dry airflow), the Madden-Julian Oscillation MGO (alternating airflow that carries water vapor from the Indian Ocean to the Pacific Ocean), and atmospheric disturbances that caused by the presence of tropical cyclones. Among the factors above, tropical cyclones can increase the chance of extreme rainfall in Indonesia. Rainfall is categorized as extreme if it has an intensity above 100 millimeters/day (BMKG).
Since last week, there have been two tropical cyclones, namely Tropical Cyclone Darian in Southwest Sumatra and Tropical Cyclone Ellie in the Timor Sea. As seen in the screenshot of windy.com, the confluence of airflow generated by the two tropical cyclones above is moving north and meeting with airflow from Asia. This meeting gave rise to the center of cloud growth moving eastward starting from the Banten area and then along the island of Java.
Photo source: windy.com