Vratsa (Radar Bardarski geran)
Radar reflectivity (dBZ) at 2.5 km height

2-18 dBZ No precipitation, ground clutter 18-32 dBZ Light rain 32-42 dBZ Moderate rain 42-48 dBZ Moderate to heavy rain, lightning possible 48-52 dBZ Heavy rain; small granular hail possible 52-58 dBZ Very heavy rain; pea to marble sized hail possible 58-65 dBZ Very heavy rain and hail; marble size hail possible > 65 dBZ Very heavy rain and hail; large hail possible