Mammatus type clouds, unusual weather events and an amazing view of the sky. Rybnik, Poland 17 July 2015 <br />Chmury typu mammatus, niecodzienne zjawiska pogodowe i niesamowity widok nieba. Rybnik, Polska 17 lipca 2015 <br />handycam Sony recording device HDR-CX160E time-lapse Full HD video (1920x1080p) format high quality definition
