Petr Hykš: Cumulonimbus calvus
Petr Hykš: Cumulonimbus calvus
Petr Hykš: Cumulonimbus calvus & Tyndall effect
Petr Hykš: Cumulonimbus calvus & Tyndall effect
Petr Hykš: Cumulonimbus capillatus (panorama)
Petr Hykš: Cumulonimbus calvus
Petr Hykš: Cb calvus, Cu fractus & cloud shadow
Petr Hykš: Cumulonimbus calvus & towering congestus
Petr Hykš: Cumulonimbus calvus, strong updraft
Petr Hykš: Cumulonimbus calvus
Petr Hykš: Cumulonimbus calvus
Petr Hykš: Cumulonimbus capillatus & low level clouds above Ždánice observatory
Petr Hykš: Cumulonimbus calvus detail
Petr Hykš: Cumulonimbus calvus detail
Petr Hykš: Massive cumulonimbus calvus reaching incus stage before transforming to capillatus (panorama)
Petr Hykš: The sky locked by Cb calvus clouds