What symbols are used to indicate the various directions and sizes of the wind? For example, the weather forecast of CCTV is like an F symbol.

In the forecast of the Central Meteorological Observatory, there are symbols on the big screen: it looks like an F, in which the "tail" (vertical downward) indicates the wind direction; "Fugan" (horizontal line on the right) indicates the magnitude of wind power, and Fugan is directly proportional to wind power.

1- secondary: 1 vertical line 1 horizontal line

Grade 3-4: 1 vertical line and 2 horizontal lines

Layer 5-6: 1 vertical line 3 horizontal line

Grade 7-8: 1 vertical bar 4 horizontal bar.

Grade 8 or above: 1 vertical bar 1 triangle

Extended data

In fact, in nature, the wind sometimes exceeds 12. For example, the central wind force of a strong typhoon or tornado may be much larger than the magnitude of 12, but the wind above the magnitude of 12 is rare, so the magnitude is generally not specified.

In the weather forecast, we often hear the expression "the north wind is 4 to 5", in which the wind refers to the average wind; If you hear the expression "gust 7", gust refers to the wind with high and low wind speed, and the wind at this time refers to the maximum wind force.