Thunderstorms and heavy rainfall are forecasted to occur starting from 20 December 2025, 05:15 WITA in parts of Kalimantan Timur especially in: Anggana, Babulu, Balikpapan Barat, Balikpapan Kota, Balikpapan Selatan, Balikpapan Tengah, Balikpapan Timur, Balikpapan Utara, Barong Tongkok, Batu Ampar, Batu Engau, Batu Sopang, Bentian Besar, Bongan, Bontang Selatan, Busang, Damai, Jempang, Kembang Janggut, Kenohan, Kota Bangun, Kuaro, Laham, Linggang Bigung, Loa Janan, Loa Janan Ilir, Loa Kulu, Long Apari, Long Bagun, Long Hubung, Long Ikis, Long Iram, Long Kali, Long Mesangat, Long Pahangai, Marang Kayu, Melak, Mook Manaar Bulatn, Muara Ancalong, Muara Badak, Muara Bengkal, Muara Jawa, Muara Kaman, Muara Komam, Muara Lawa, Muara Muntai, Muara Pahu, Muara Samu, Muara Wis, Nyuatan, Palaran, Paser Belengkong, Penajam, Penyinggahan, Rantau Pulung, Samarinda Ilir, Samarinda Kota, Samarinda Seberang, Samarinda Ulu, Samarinda Utara, Samboja, Sambutan, Sangatta Selatan, Sangatta Utara, Sebulu, Sekolaq Darat, Sepaku, Siluq Ngurai, Sungai Kunjang, Sungai Pinang, Tabang, Tanah Grogot, Tanjung Harapan, Telen, Teluk Pandan, Tenggarong, Tenggarong Seberang, Tering, Waru. 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, 07:00 WITA.