Cloud formation Cumulus, Towering Cumulus (centre) and Cumulonimbus above agricultural land at Swinbrook in the Cotswolds, UK

Cloud formation Towering Cumulus (left) Cumulonimbus (right) and Cirrus at high altitude at Swinbrook in the Cotswolds, UK

Cloud formation Towering Cumulus (centre) Cumulonimbus (left) and Cirrus at high altitude (right) at Swinbrook in the Cotswolds, UK

Towering Cumulus Clouds (Cumulus congestus) above a field of rape (Brassica napus) in bloom, Krembz, Mecklenburg-Western Pomerania, Germany, Europe

Cumulus mediocris cloud formation, congestus, in the evening at sunset, Freising, Upper Bavaria, Bavaria, Germany, Europe