Thunderstorms and heavy rainfall are forecasted to occur starting from 02 April 2026, 18:30 WIB in parts of Kalimantan Barat especially in: Air Besar, Air Upas, Belimbing, Belimbing Hulu, Binjai Hulu, Dedai, Hulu Sungai, Jelai Hulu, Jelimpo, Kayan Hilir, Kelam Permai, Ketungau Hilir, Manis Mata, Nanga Pinoh, Nanga Tayap, Ngabang, Pinoh Utara, Seberuang, Semitau, Sepauk, Silat Hilir, Silat Hulu, Sintang, Sokan, Sungai Tebelian, Tempunak, Tumbang Titi. These conditions may lead to reduced visibility, strong winds, and localized flooding. The public is strongly advised to remain vigilant during this period, limit outdoor activities, and take all necessary precautions to ensure safety. Conditions are expected to gradually improve by 02 April 2026, 21:00 WIB.