Meteorological services have issued a weather warning for heavy thunderstorms accompanied by hail across 21 provinces this Saturday. In the provinces of M'sila, Sétif, Mila, Constantine, Guelma, Batna, Khenchela, Oum El Bouaghi, Souk Ahras, and Tébessa, rainfall amounts are expected to exceed 20 mm between 3:00 PM and 11:00 PM. A separate alert covers the provinces of Biskra, Ouled Djellal, El M'ghair, El Oued, Touggourt, Ouargla, Illizi, In Salah, Tamanrasset, Djanet, and Béchar, where rainfall is expected to exceed 15 mm accompanied by hail, starting from 2:00 PM until 11:00 PM.