Thunderstorms and heavy rainfall are forecasted to occur starting from 01 January 2026, 00:00 WIB in parts of Riau especially in: Bagan Sinembah, Bandar Petalangan, Bandar Sei Kijang, Bangkinang Kota, Bangko Pusako, Bangun Purba, Batang Cenaku, Batang Gangsal, Batang Tuaka, Bukit Raya, Bunga Raya, Bunut, Dayun, Enok, Gaung, Gaung Anak Serka, Gunung Sahilan, Gunungtoar, Kabun, Kampar, Kampar Kiri, Kampar Kiri Hilir, Kampar Kiri Hulu, Kampar Kiri Tengah, Kampar Timur, Kampar Utara, Kempas, Kemuning, Kepenuhan, Kepenuhan Hulu, Kerinci Kanan, Keritang, Kerumutan, Koto Gasib, Koto Kampar Hulu, Kuala Cenaku, Kuala Kampar, Kuantan Mudik, Kuantan Tengah, Kuok, Langgam, Lima Puluh, Marpoyan Damai, Mempura, Minas, Pagaran Tapah Darussalam, Pangkalan Kerinci, Pangkalan Kuras, Pangkalan Lesung, Pasir Penyu, Payung Sekaki, Pekanbaru Kota, Pelalawan, Perhentian Raja, Pujud, Pusako, Rakit Kulim, Rambah, Rambah Samo, Rengat, Rengat Barat, Reteh, Rumbai, Rumbai Pesisir, Rumbio Jaya, Rupat Utara, Sail, Salo, Senapelan, Siak Hulu, Siak Kecil, Siberida, Singingi, Singingi Hilir, Sukajadi, Sungai Apit, Sungai Batang, Sungai Lala, Sungai Mandau, Tambang, Tampan, Tanah Putih, Tapung, Tapung Hilir, Tapung Hulu, Teluk Meranti, Tembilahan, Tembilahan Hulu, Tempuling, Tenayan Raya, Tualang, 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 01 January 2026, 03:00 WIB.