Thunderstorms and heavy rainfall are forecasted to occur starting from 09 December 2025, 19:30 WIB in parts of Jawa Timur especially in: Ambulu, Ampelgading, Arosbaya, Asem Rowo, Bancar, Bangilan, Bantur, Barat, Batu, Blimbing, Bringin, Brondong, Bulak, Bululawang, Bungah, Candipuro, Dampit, Dander, Dau, Doko, Dukuhpakis, Dukun, Gandusari, Garum, Gayam, Gayungan, Gedangan, Geger, Geger, Geneng, Genteng, Gerih, Grabagan, Gumukmas, Jambangan, Jatirejo, Jatirogo, Jenu, Jiwan, Jogorogo, Junrejo, Kalipuro, Kalitidu, Kandangan, Karang Ploso, Karanganyar, Karangbinangun, Karangrejo, Karas, Kartoharjo, Kasembon, Kasiman, Kasreman, Kebon Sari, Kedewan, Kedungadem, Kedunggalar, Kedungkandang, Kendal, Kenduruan, Kepanjen, Kepung, Kerek, Klampis, Klojen, Krembangan, Lakarsantri, Laren, Lowokwaru, Maduran, Malo, Manguharjo, Mantingan, Margomulyo, Merakurak, Montong, Mulyorejo, Ngajum, Ngambon, Ngancar, Ngantang, Ngasem, Ngawi, Nglegok, Ngoro, Ngraho, Ngrambe, Pabean Cantikan, Pacet, Paciran, Padangan, Padas, Pakisaji, Palang, Panceng, Pandaan, Panekan, Parengan, Paron, Pasrujambe, Pitu, Plosoklaten, Plumpang, Poncokusumo, Prigen, Pronojiwo, Puger, Pujon, Puncu, Purwosari, Ra"As, Rengel, Sambikerep, Sawahan, Sedati, Sekar, Semampir, Semanding, Senori, Sepulu, Sidayu, Sidorejo, Sine, Singgahan, Singosari, Soko, Solokuro, Sugihwaras, Sukomoro, Sukun, Sumberbaru, Sumbermanjing Wetan, Tajinan, Takeran, Taman, Tambakboyo, Tambakrejo, Tambaksari, Tirtoyudo, Trawas, Tuban, Tumpang, Ujungpangkah, Wagir, Wajak, Widodaren, Wlingi, Wongsorejo, Wonosalam, Wuluhan. 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 09 December 2025, 21:30 WIB.