Visibility Introduction

Visibility is a measurement of atmospheric clarity. Reduction in visibility can be caused by:

  • Water droplets, such as cloud, fog, or rain.
  • Solid particles, such as sand, dust, or smoke.
  • Ice, such as crystals, hail, or snow.

Poor visibility is more common in stable conditions, for example, beneath an inversion. Visibility is generally better upwind of towns and industrial areas, away from the atmospheric pollutants.

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