Meteorological sign symbol for weather forecast

Commonly used symbols for weather forecasts are: sunny, cloudy, cloudy, frost, thunderstorm, rainfall, snowfall, fog, wind, cooling, sunshine, rain, sun, moon, clouds, umbrellas and snowmen symbol.

Extended information

Explanation of weather phenomena

Sunny: less than 30% cloud cover

< p>Sunny to cloudy: less than 30% of the sky's cloudiness will account for 30% to 80% of the sky's cloudiness;

Cloudy: 30% to 80% of the sky's cloudiness;

Overcast: the sky will be cloudy Cloud cover accounts for 90% or more;

Light (shower) rain: the daily rainfall is less than 10 mm;

Moderate rain: the daily rainfall is 10.1-24.9 mm;

Heavy rain: the daily rainfall is 25.0-49.9 mm;

Heavy to heavy rain: the daily rainfall is more than 50.0 mm;

Thunderstorm: it falls and stops suddenly, accompanied by lightning and thunder. Intermittent pre cipitation;

Light snow: the daily snowfall (melted into water) is less than 2.5 mm;

Medium snow: the daily snowfall (melted into water) is 2.6-4.9 mm;< /p>

Heavy blizzard: the daily snowfall (melted into water) reaches or exceeds 5.0 mm;

Hail: small hail nuclei rise and condense repeatedly with the intense vertical movement in cumulonimbus clouds It falls and melts, growing into small ice cubes with alternating transparent and opaque layers (generally 4-5 layers) and falling;

Frost: Water vapor condenses into white on the ground and surfaces with temperatures below 0°C. What crystallizes is white frost. When there is little water vapor content and no frost, it is called black frost. It is harmful to crops and is collectively called frost;

Fog: refers to a collection of large amounts of water droplets or ice crystal particles suspended in the air close to the ground. When this kind of aggregate reduces the horizontal visibility distance to less than 1,000 meters, it is called fog. When the visibility distance drops to between 1,000 and 10,000 meters, it is called light fog;

Freezing rain: Raindrops freeze below 1,000 meters. On the surface of objects with a temperature of 0°C, it is also called rime (frozen by fog droplets, called rime). It often breaks wires and causes the road to freeze, affecting communications, power supply, transportation, etc.;

Rime pine: Raindrops freeze on surfaces and the ground below 0°C, and are called rain pine (those frozen by fog droplets are called rime). They often fall down and break wires, causing the road to freeze, affecting communications, power supply, Transportation etc.