Arcus cloud over the mountains of the Gerlache Strait, blue sky, Antarctic Peninsula, Antarctica, Polar Regions

A young woman with trekking gear hiking through the rock arch Arcu su Feilau at the mountainous coast above the sea, Golfo di Orosei, Selvaggio Blu, Sardinia, Italy, Europe

Dramatic storm clouds with lightning and rain over farmland; Guymon, Oklahoma, United States of America

Dramatic dark storm clouds over farmland; Guymon, Oklahoma, United States of America

Dramatic dark storm clouds over farmland; Imperial, Nebraska, United States of America

Dramatic storm clouds with forked lightning over farmland; Guymon, Oklahoma, United States of America

Thunderstorm over the Gironde in the evening on June 8, 2017, Plassac, Gironde, France

Cold air storm at the end of the day on June 16, 2016, La Beauce, Eure et Loir, France