How to treat the wind direction arrow of Apple's mobile phone weather forecast?

The direction indicated by the weather forecast wind direction sign represents the wind direction.

Vertical and horizontal lines represent the wind level, 1 horizontal line represents 1-2 wind level, 2 horizontal lines represent 3-4 wind level, 3 horizontal lines represent 3-4 wind level, 4 horizontal lines represent 7-8 wind level, and 1 triangle represents 8 or above.

The wind direction sign of weather forecast is wind vector, which consists of wind pole and wind plume. In the weather forecast, the wind direction is indicated by eight directions, and the short straight line and small triangle above indicate the wind speed, which is perpendicular to the left side of the mast.