§   Cloud base mostly below 600 m, sometimes as low as 60 to 90 m, and could often mask the middle parts of mountains or the top of tall buildings

§   Consists of tiny water droplets

§   Appears grey or greyish white in sheets of layer clouds with fairly uniform cloud base without reaching the ground

§   Sometimes also appears in the form of ragged patches

§   Commonly seen in Hong Kong in the spring

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