Is it cloudy with or without the sun?

When it is cloudy, there is usually the sun, but sometimes the sun is blocked by clouds.

On cloudy days, there will be the sun in the sky, but it will be blocked by thick clouds in the sky for a long time, so the sun will not be visible. Cloudy refers to a scientific term in meteorology. The definition in weather forecasting is very strict. Using satellite cloud photos for analysis can improve the accuracy of weather forecasting. Cloudy is a kind of weather that can be called "sunny and overcast". "interval" weather phenomena.

Cloudy in meteorology refers to the coverage of clouds in the sky covering four-tenths to eight-tenths of the sky. It means that there are many clouds in the sky and there is not enough sunshine, but sunny days can still be seen through the gaps in the clouds. Weather phenomena in which medium or low cloud cover accounts for 4/10-7/10 of the sky area or high cloud cover accounts for 6/10-10/10 of the sky area.

Some commonly used terms in weather forecasts:

1. Sunny: The sky has less than 30% cloud cover.

2. Overcast: The sky has cloud cover accounting for 90% or more.

3. Fog: A large number of tiny water droplets or ice crystals float in the air near the ground, and horizontal visibility drops to less than 1 km.

4. Light rain: daily precipitation is less than 10 mm.

5. Heavy rain: daily precipitation is 25.0-49.9 mm.

6. Thunderstorm: intermittent precipitation that comes and stops and is accompanied by lightning and thunder.

7. Hail: With the intense vertical movement in cumulonimbus clouds, small hail nuclei repeatedly rise, condense, fall and melt, growing into small ice cubes with alternating transparent layers and falling.

8. Sleet: The temperature near the ground is slightly higher than 0℃, wet snow or rain and snow fall at the same time.

9. Light snow: The daily snowfall (melted into water) is less than 2.5 mm.

10. Moderate snow: daily snowfall (melted into water) 2.6-4.9 mm.

11. Heavy snow: The daily snowfall (melted into water) reaches or exceeds 5.0 mm.