The warning concerning, among others, Bolesławiec County states:
Course: Thunderstorms with rainfall of up to 30 mm, locally up to 40 mm, and wind gusts of up to 70 km/h are forecast in places. Hail locally.
Probability: 80%. The warning is in effect from June 18 at 11:00 a.m. until June 19 at 2:00 a.m..