Online Encyclopedia of Western Signs and Ideograms Symbols.com

Symbol 16:26

1607a

1607b

16:26 · Signs like these have been used in meteorology to denote winds of varying strengths. The strength of the wind is indicated by the number of short, perpendicular lines according to a simple code. The signs shown here indicate, respectively, weak wind and hurricane.
    Compare with other signs for weak and strong winds: 1819, 3704, 5203a, and 5003.