An impressive early season supercell thunderstorm formed over SE Poland, between Rzeszów and Zurawica in the late afternoon of April 7. The supercell developed very distinct structure, forming a deep RFD cut and wall cloud, possibly also a funnel cloud. Large hail, with hailstones up to 3.5 cm in diameter was reported with this storm in Przemyśl and Glinik Charzewski.

Wall cloud on the same supercell when near Rzeszów. Photo: Andrzej Błoński.

Powerful updraft, knuckles and mammatus clouds on the supercell. Photo: Andrzej Błoński.

Hail in Przemyśl/Glinik Charzewski.

Hail in Przemyśl.