How does the wind direction indicate F? What do you make of that sign?

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.

The unit of measurement of wind direction, which we express in azimuth. For example, on land, it is generally represented by 16 directions, and at sea, it is represented by 36 directions. At high altitude, it is expressed by angle. To express the wind direction by angle means to divide the circumference into 360 degrees, the north wind (n) is 0 degrees (that is, 360 degrees), the east wind (e) is 90 degrees, the south wind (s) is 180 degrees, and the west wind (w) is 270 degrees, and the rest wind directions can be calculated from this.

Extended data:

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NNW stands for north by northwest.

Meteorology determines the wind direction as the wind direction. Therefore, the wind from the north is called the north wind and the wind from the south is called the south wind. When the meteorological station forecasts the wind, the wind direction swings from side to side in a certain direction. When it is uncertain, the word "bias" is used, such as northerly wind. When the wind is very small, it is explained by "uncertain wind direction"

Limited by the starting wind speed of the instrument, the wind with the wind speed less than 2m/s is usually recorded as no wind, that is, the wind direction is missing.

? Baidu encyclopedia-wind direction