Flash floods occurred throughout the Indonesian capital of Jakarta and its metropolitan area on the early hours of 1 January 2020, due to the overnight rain which dumped nearly 400 millimetres (15 in) of rainwater,[2][3] causing the Ciliwung and Cisadane rivers to overflow.

Uncontrolled population growth in urban areas, poor land-use planning, and the lack of understanding among city residents and government about floods and its disaster risk exacerbate the impact.

[12][13] According to Indonesia's Meteorology, Climatology, and Geophysical Agency (BMKG), more rain with thunderstorm and heavy winds is expected in the next three to seven days, which is likely to exacerbate the current flooding situation.

[14][15] Multiple transportation networks were disrupted, including light rail transit,[16] taxis,[17][18] trains,[19] toll roads,[20] and the Halim Perdanakusuma International Airport.

Baswedan has publicly stated that "I want all the officials in the Jakarta administrations to make sure that all government buildings and schools are ready to be used as evacuation shelters.

[24][35] Turkey's Ministry of Foreign Affairs stated that it's in full solidarity with the people of Indonesia and ready to provide any assistance that may be needed.