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Extreme weather alert for Indonesia this upcoming week

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IO – The Meteorology, Climatology, and Geophysics Agency (Badan Meteorologi, Klimatologi, dan Geofisika – “BMKG”) has issued an early warning for extreme weather in several regions in Indonesia, from 18 to 24 May 2021. “We predict that within the next week, the Easterly wind will remain highly dominant, due to continued significant blowing of the Australian monsoon. This results in a very low potential of rainclouds in Indonesia, especially in the South,” said the BMKG on its official webpage on Tuesday (18/05/2021). 

The Rossby Equator and Kelvin Waves are predicted to continue their activities in Indonesian territory, especially in the North, increasing the potential of rain clouds forming above Kalimantan, Sulawesi, North Maluku, West Papua, and Papua regions. Furthermore, a relatively low-magnitude Madden-Julian Oscillation (“MJO”) is expected to occur in Quadrant 3, potentially causing rainclouds to appear above the Northern coast of Aceh and in the Andaman Sea this weekend. 

BMKG further notes the possibility of wind circulation patterns around the Andaman Sea and Sulawesi Sea, which will increase the potential of increased air mass in the area that will form rainclouds there. The overall weather in the period will be dominated by clear to cloudy weather in most of the Southern part of Sumatra, Bali, West Nusa Tenggara, and East  Nusa Tenggara. Mild to medium rainfall is expected to occur in Sumatra and Northern parts of Java, except East Java. Medium to high rainfall is expected to occur in Aceh, North Sumatra, Central Java, East Java, Central Kalimantan, South Kalimantan, West Sulawesi, Central Sulawesi, North Sulawesi, North Maluku, West Papua, and Papua. 

BMKG went on to request that citizens in these areas beware and be extra careful of potential extreme weather patterns (cyclones, thunderstorms, ice rains, etc.) and the potential disasters that they may cause, such as floods, landslides, flash floods, pooling, strong winds, fallen trees, and slick roads in the weeks ahead. (eka) 

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