Thunderstorms and heavy rainfall are forecasted to occur starting from 19 December 2025, 22:30 WITA in parts of Kalimantan Selatan especially in: Alalak, Aluh Aluh, Amuntai Selatan, Amuntai Tengah, Amuntai Utara, Angkinang, Astambul, Babirik, Banjang, Banjarmasin Barat, Banjarmasin Selatan, Banjarmasin Tengah, Banjarmasin Timur, Banjarmasin Utara, Banua Lawas, Binuang, Bungur, Candi Laras Utara, Cerbon, Daha Barat, Daha Selatan, Daha Utara, Danau Panggang, Gambut, Halong, Hampang, Hatungun, Haur Gading, Jaro, Jejangkit, Jorong, Kandangan, Kelua, Kertak Hanyar, Kuripan, Labuan Amas Selatan, Lampihong, Lokpaikat, Mandastana, Mataraman, Muara Harus, Muara Uya, Paminggir, Pamukan Barat, Pamukan Utara, Panyipatan, Pengaron, Pugaan, Rantau Badauh, Salam Babaris, Sambung Makmur, Simpang Empat, Simpur, Sungai Pandan, Sungai Raya, Sungai Tabuk, Sungai Tabukan, Sungaidurian, Tabunganen, Tamban, Tanjung, Tanta, Tapin Selatan, Tapin Tengah, Tapin Utara, Tatah Makmur, Telaga Bauntung. 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 20 December 2025, 01:00 WITA.