What is the symbol when six horizontal lines overlap?

Weather symbol. According to the query, Baidu Encyclopedia shows that there are six horizontal lines overlapping with weather symbols, representing foggy days. Weather refers to the specific state of the near-surface atmosphere in a short period of time in a certain area, and weather phenomenon refers to various natural phenomena in the atmosphere, that is, the comprehensive expression of the spatial distribution of various meteorological elements in the atmosphere (such as temperature, pressure, humidity, wind, clouds, fog, rain, flash, snow, frost, thunder, hail, haze, etc.). ) in an instant.