The above satellite images are infra-red (IR) images of the southeast region of Asia. Time interval of updating image is 30 minutes.
Infra-red image shows the amount of thermal radiation emitted by the ground, sea surface and cloud top surfaces, which represent the temperatures of these surfaces. Because the temperature normally decreases with height in the troposphere, higher clouds usually have lower temperatures.
In the above infra-red satellite images, black and dark blue colours represent higher temperature, while white and red colours represent lower temperature. Ground and sea surface normally appear in black or dark blue colours, while the clouds with high cloud top surfaces usually appear in red colour.

The above satellite images were originally taken by the Himawari-8 satellite of Japan Meteorological Agency.
Himawari-8 is a geostationary meteorological satellite, which is located above the equator at longitude 140.7E, at a height of about 35,800 km above the ground. Himawari-8 follows the rotation of the Earth and will always stay above the same position of the Earth. Therefore, it can monitor the same region of the Earth all the time.
The time stamp on the above images is the completion time of the images taken by the satellite, in Coordinated Universal Time (UTC+0) form. Macau local time is 8 hours faster than the Coordinated Universal Time (UTC+8).
The above satellite images update every 30 minutes. An animation of the image sequence helps indicating the movement and development of the clouds.
Update frequency of the above images may be adjusted due to the maintenance of the satellite system.