Case studies

Massive hailstorm over Gauteng, South Africa

Severe thunderstorms with golf ball size hail and flash floods hit Gauteng province of South Africa in late November.

Severe thunderstorms over Sardinia

Flash floods caused by heavy thunderstorms tear through streets in Sardinia, submerging homes and killing at least 18 people.

Signs of severe turbulence

The 'fringing' in jet stream cirrus, seen in the imagery, indicates the likelihood of severe turbulence.

Super Typhoon Haiyan devastates the Philippines

The equivalent of a category-5 hurricane Typhoon Haiyan, possibly the strongest typhoon ever recorded, struck the Philippines causing major loss of life, flooding and extensive damage to buildings.

Distrails over Central Europe

A distrail, short for dissipation trail, forms when an aircraft flies through a supercooled cloud.