Floods are just one of many natural weather hazards. Image by The Australian.

Floods are just one of many natural weather hazards. Image by The Australian.

ZIMSEC O Level Geography Notes: Weather Hazards

  • Weather hazards are conditions which are unfavorable to people and their activities that result from weather phenomena.
  • There are many types of Weather Hazards and most cannot be prevented although their effects can be mitigated.
  • Common hazards include:

Floods

Are caused by excessive precipitation over a short period of time. They are associated with weather phenomena like cyclones and depressions as well as thunderstorms.
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Lightining

Lightning is made up of huge static discharges that are a result of differences in charge between the ground and clouds. Sometimes lightning occurs between two clouds with different charges.
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Drought

Drought refers to a phenomena where an area experiences a deficiency in its water supply in terms of precipitation (rain and snow). This results in a shortage of ground,surface and atmospheric water supply.
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Frost/Snow and Hail

Snow is caused by a sudden drop in temperature. This might affect things like air travel where it may be necessary to ground flights causing delays and substantial economic loss to affected parties e.g. airlines and cargo companies
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