To speak about disasters, you need the appropriate vocabulary. Part 2
  
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Arson - malicious burning to destroy property;
 
Barometer - an instrument that measures atmospheric pressure;

Beaufort scale - a scale from 0 to 12 for the force of the wind;

Blackout - darkness resulting from the extinction of lights;

Blow - be in motion due to some air or water current;

Cloud - a visible mass of water or ice particles suspended at a considerable altitude;

Crust - a hard outer layer that covers something;

Cumulonimbus - a dark cloud of great vertical extent charged with electricity; associated with thunderstorms;

Dam - a barrier constructed to contain the flow of water;

Erosion - the process of wearing or grinding something down;

Fatal - bringing death;

Fault - an imperfection in an object or machine;

Fire - the process of combustion of inflammable materials;

Fog - droplets of water vapor suspended in the air near the ground;

Force - the influence that produces a change in a physical quantity;

Forest fire - an uncontrolled fire in a wooded area;

Gale - a strong wind moving 45-90 knots;

Geyser - a spring that discharges hot water and steam.
 
Examples:

There are many forest fires in summer.

The Aswan High Dam is on the River Nile in Egypt.

Power lines were blown down and we had a blackout of several hours.

Have you ever seen cumulonimbus?
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