Amazing natural phenomenon in the sky of Vietnam

The day turned into night in Quang Ninh, double rainbow in Hanoi, colorful clouds in Vinh Phuc . are strange phenomena causing a stir in the community.

>>> Strange phenomenon, night "suddenly" night in Ha Long city

At 9:00 am, people in Hon Gai area, Ha Long City (Quang Ninh) had to turn on their lights for living and business because the sky was dark.This phenomenon is also recorded in many other northern provinces.The cause was determined by the great thunderstorm, the thick black cloud covering the sun .

The sun radiates a lot in a number of localities in recent years such as Da Nang, Ba Ria-Vung Tau, Lao Cai, Da Lat and Binh Duong. The sun halo is an optical phenomenon in the atmosphere caused by clouds or aerial layers of ice with ice particles, particles of refraction with sunlight . The sun's halo is similar to the moon's halo, when the sun's halo appears in dry weather, without rain. In the picture is the phenomenon of solar aura recorded in Bac Kan last August. Photo provided by reader Ha Trieu Ngoc Quynh.

Amazing cloud in Hanoi sky in the afternoon of late August 2009 after heavy rain. Scientists say this phenomenon is not related to large meteorological events, but the frequency of repetition of clouds is very low, so it is rare. That is mammatus cloud , Vietnam called "dragon scales cloud" . Photo: Long Ha.

In the late afternoon of July 2012, colorful clouds appeared in the sky of Hanoi and Vinh Phuc. This phenomenon was previously witnessed by Quy Nhon people in June 2012. Shining clouds are the appearance of colors in a cloud , not too rare. The pentagon cloud is produced by diffraction, small droplets or small ice crystals in the cloud scattering white light . Photo provided by reader Dang Hoang Long - Vu Dinh Khanh.

Also in July 2012, Hanoi people witnessed double rainbows and colorful clouds. Rainbow is a dispersal phenomenon of sunlight when interacting with water particles in the air. When the light is reflected and refracted through the water particle, it will split into colors in the order of red, orange, yellow, green, blue, indigo, purple. Most often seen as a single rainbow, while the "twin" rainbow is very rare. According to international scientists, the mystery of this type of rainbow lies in the combination of water droplets of different sizes. Sometimes, two showers occur at the same time, raindrops will have different sizes and create a slightly deformed rainbow. These rainbows combine to make a twin rainbow. Photo provided by reader Do Duy Truong.

In the morning of September 1, 1989, many people saw the cloud of Temple of Dragon (Bac Ninh). Photo: Nguyen Duc Thin.