What does the "symbol" of weather forecast on Apple's mobile phone mean?

The meaning of each symbol is as shown in the figure:

Meteorological terms:

1. Temperature: The temperature at 2 1 13 mentioned in the weather forecast refers to the air temperature measured outside 526 1, which is not exposed to direct sunlight at 4 102 (generally measured by a louver). The highest temperature is the highest temperature in a day, which generally appears at 14- 15, and the lowest temperature generally appears at 5-6 am.

2. Precipitation: Precipitation includes rainfall, snowfall, sleet and hail.

Rainfall: gas 1653 generally refers to the rainfall within 24 hours. Rainfall is generally divided into eight levels: sporadic light rain, light rain, shower, moderate rain, heavy rain, heavy rain, heavy rain, heavy rain, heavy rain and heavy rain.

Hail: Hard spherical, conical or irregularly shaped solid precipitation.

Snowfall is divided into light snow, medium snow, heavy snow, blizzard and blizzard according to snowfall.

3. Wind: Wind refers to the horizontal flow of air. Expressed by wind direction and wind speed: the wind direction is divided into sixteen directions, which refers to the direction in which the wind blows; Wind speed is expressed in wind scale or m/s, and it is divided into average wind speed represented by 2-minute average situation and instantaneous wind speed represented by instantaneous situation.

The strength of the wind is expressed by the wind speed, generally measured by the size of the wind or how many meters/second. There are thirteen grades:

Static wind: that is, level 0 wind.

Breeze: that is, level 4 wind. Wind with a wind speed of 5.5-7.9 m/s

Breeze: that is, level 3 wind.

Strong wind: that is, 8 winds. Wind with an average wind speed of17.2-20.7m/s.

Strong wind: 10 wind.

Storm: 1 1 wind. A wind with a wind speed of 28.5-32.6 m/s.

Hurricane: the wind above 12.

Extended data:

Modern weather forecast has five components:

1, collecting data

2. Using weather balloons, meteorologists can also collect the temperature, humidity and wind force in the sky. Weather balloons can rise all the way to the tropopause.

3. Weather radar can provide information about precipitation area and intensity. Doppler radar can also measure wind speed and direction.

4. Data weather forecast.

5. Show. For end users, the display of weather forecast is the most important in the whole process. Only by knowing what information the end user needs and how to convey it to the end user easily can this task be completed.

References:

Baidu encyclopedia-weather forecast