Rare! A green sky appeared in this city!

Recently, the sky in Sioux Falls, South Dakota, USA, showed a rare green color. On the eve of the storm, large clouds rolled in the sky.

Meteorologists explained that this phenomenon often indicates that a thunderstorm is coming. Because the clouds carry a lot of moisture, only blue light passes through the clouds, making the sky appear green.

It was reported that heavy hail fell in Sioux Falls that day.

Source: CCTV News Client