How to Analyze Weather Radar Echo

Weather radar echo can be analyzed from the color, from blue to purple, and the echo intensity is from small to large (10-70dBz). From the echo of different colors, we can judge the rainfall intensity, rain area range, future rainfall intensity and movement.

1, how to identify the rain area?

On the radar echo map, the area surrounded by green echo generally corresponds to the expected rainfall. Generally speaking, it may rain in light green, and it will definitely rain in dark green.

2. How to identify rainfall intensity

The radar echo changed from blue to purple, and the rainfall intensity gradually increased. Generally, the bright yellow area generally corresponds to the rainfall intensity of about 10 mm/h, and the warm red radar echo generally corresponds to the rainfall intensity of about 20 mm/h, and there may be strong convective weather such as short-term thunderstorms, strong winds and hail.

3. How to identify the future trend of rainfall?

From the analysis of multi-temporal dynamic diagram of radar echo, it affects the trend of rainfall system according to time period.