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Character and intensity of precipitation

(Section 3.1.5)

As illustrated in the chart below, the character and intensity of precipitation (intermittent or continuous; slight, moderate, or heavy) can be indicated with unique arrangements of the basic symbols.

Table 19. Classification of character and intensity of precipitation

Character

Intensity

Intermittent

Continuous

Slight

Moderate

Heavy (dense)

Combinations of the basic symbols may be used to indicate more complex situations. For example:

  • Symbols  or denote a mixture of falling raindrops and snowflakes;
  • Symbol indicates a thunderstorm with rain at the place of observation.

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