What do the two stripes under the cloud mean in the weather forecast?

Under the clouds, the crossing indicates fog, three indicates heavy fog, two indicates medium fog and one indicates small fog.

Other weather symbols with water droplets under the cloud represent meanings:

①? Light rain: only one drop of water falls on the clouds;

2 moderate rain: two drops of water fall from the clouds;

③ Heavy rain: Three drops of water fell from the clouds;

④ Rainstorm: Four drops of water fall from the clouds;

⑤ Shower: Inverted triangle with light rain spots on it.

Extended data:

Weather symbols are special symbols representing various weather phenomena, clouds and sky conditions. Includes weather phenomenon symbols for observation and recording and weather graphic symbols for media communication. When observing a weather phenomenon, except for a few phenomena, the corresponding symbols should be recorded in the "weather phenomenon" column of the observation record book of the day, and the start and end times should be recorded at the same time.

Based on these symbols, combined with the intensity, coexistence and some characteristics of weather phenomena, a group of symbols that can be filled in weather maps are called cartographic symbols.