Jakarta, domclub Indonesia
—
Meteorology, Climatology and Geophysics Agency (
BMKG
) mentions
rain
with light to very heavy intensity, it has the potential to occur in a number of areas in the country until next week due to a combination of several atmospheric factors.
“In the next week, the potential for rain cloud growth in various regions in Indonesia is estimated to still be significant. This condition is triggered by a combination of atmospheric factors on a global, regional and local scale which keep the atmosphere unstable and support the formation of convective clouds,” wrote BMKG in its Weekly Weather Prospects for the Period 7 – 13 November 2025.
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“As a result, light to very heavy rain is likely to occur in a number of areas,” he added.
BMKG estimates that several main factors play a significant role in weather dynamics in Indonesia, namely Tropical Cyclone Fung-Wong;Cyclonic Circulation in the Indian Ocean southwest of Bengkulu and Banten, and in southern Maluku;as well as the MJO and equatorial Rossby and Kelvin atmospheric waves which are predicted to be active in parts of Indonesia for the next week.
Tropical Cyclone Fung-Wong is currently observed in the Pacific Ocean and moving towards the West – Southwest.This tropical cyclone has an indirect impact on weather conditions in the form of moderate to heavy intensity rain and high waves in northern eastern Indonesia.
Meanwhile, cyclonic circulation is predicted to be consistent in the next week in the Indian Ocean west of Lampung to southwest Banten.This condition can increase the potential for rain cloud growth along the west coast of Sumatra, southern Sumatra to western Java.
Then, BMKG said that the combination of MJO and Equatorial Rossby Waves and Kelvin Waves would also support the formation of rain clouds around Indonesia in the next week.
Furthermore, global atmospheric factors such as the Dipole Mode Index (DMI) also contribute to the country’s weather conditions.The DMI was recorded as having a negative value of −1.94, which indicates warming of the waters of the eastern Indian Ocean, near Indonesian territory.
This causes an increase in the flow of water vapor from the Indian Ocean to western Indonesia, thereby supporting the formation of rain clouds in the region.
Then, there is also a weak La Nina phenomenon which indicates an increase in the supply of water vapor from the Pacific Ocean towards Indonesia.
“Based on the results of monitoring the latest atmospheric dynamics, BMKG urges the public to remain alert to the potential for extreme weather, such as moderate to heavy intensity rain which can be accompanied by lightning, strong winds and high sea waves in a number of regions in Indonesia,” explained BMKG.
(lom/dmi)
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