The Meteorology, Climatology and Geophysics Agency (BMKG), through its official website, bmkg.go.id, has issued extreme weather warnings for 17 provinces.

According to the agency, some areas in Aceh, Gorontalo, South Kalimantan, Central Kalimantan and North Sulawesi will likely experience heavy rains coupled with strong winds and lightning on Wednesday. Thunderstorms are forecast to hit parts of Jakarta, North Kalimantan and South Sumatra on the same day.

Heavy rainfall is expected to reach parts of Papua and West Papua, while strong winds are predicted to occur in Bali, Banten, Maluku, West Nusa Tenggara and East Nusa Tenggara.

Read also: Four regions at high risk of drought as BMKG predicts prolonged dry season

The BMKG warned people living in coastal areas that high tides could reach up to 4 meters high.

Waves in the Bali Sea, the Bali Strait and the Lombok Strait are expected to reach a height of 2 m while the northern parts of the Malacca Strait and its surrounding areas could see high waves up to 3 m in height.

In some areas, such as the waters of Enggano and the western part of the Indian Ocean in Bengkulu, waves may reach a height of 4 m. 

Besides bracing for heavy rainfall, people living in East Nusa Tenggara should be on alert for strong winds and land fires, the agency warned. (nal)