According to the Lviv Regional Centre for Hydrometeorology of Ukraine, on 28 September, there will be thunderstorms in the Lviv region, with significant rains in the morning and afternoon (15-49 mm, mudflows in mudslide-prone areas 15-29 mm in 12 hours or less), squalls of 15-20 m/s, and hail (6-19 mm in diameter).