The dam is only required to operate during times of extreme drought.

Ghazni City is located in an area of extreme drought.

There is an extremely high occurrence of periods with extreme drought.

There is a very high occurrence of periods with extreme drought.

The camp became the largest in the Sahel during the extreme drought of 1973-1975.

Even in years of extreme drought, it has never run dry.

There is a medium-high occurrence of periods with extreme drought.

No new mural was created in 2006 due to an extreme drought.

In June 1850 there followed an unusually cold winter, together with an extreme drought.

"But we could not anticipate how extreme drought would be in some parts of the region."