Thunderstorms and heavy rainfall are forecasted to occur starting from 28 December 2025, 04:30 WIB in parts of Riau especially in: Batang Cenaku, Batang Gangsal, Batang Peranap, Batang Tuaka, Bukit Batu, Bukit Kapur, Cerenti, Concong, Dayun, Enok, Gaung, Gaung Anak Serka, Gunungtoar, Inuman, Kampar Kiri, Kampar Kiri Hilir, Kampar Kiri Hulu, Kampar Timur, Kandis, Kateman, Kempas, Kemuning, Keritang, Kerumutan, Koto Kampar Hulu, Kuala Cenaku, Kuala Indragiri, Kuala Kampar, Kuantan Hilir Seberang, Kuantan Mudik, Kuantan Tengah, Langgam, Lirik, Lubuk Batu Jaya, Mandau, Mandau, Mempura, Merbau, Minas, Pangean, Pangkalan Kuras, Pangkalan Lesung, Pelalawan, Pelangiran, Peranap, Perhentian Raja, Pinggir, Pinggir, Pulau Burung, Pulaumerbau, Pusako, Rakit Kulim, Rengat, Rengat Barat, Reteh, Rokan Iv Koto, Rumbio Jaya, Singingi, Singingi Hilir, Sungai Apit, Sungai Batang, Tanah Merah, Tapung, Tapung Hilir, Tapung Hulu, Tebing Tinggi Barat, Teluk Meranti, Tembilahan, Tembilahan Hulu, Tempuling, Ukui, Xiii Koto Kampar. 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 28 December 2025, 08:00 WIB.