The S-PolKa radar in my previous post is observing clouds that are inside a circle centered at the radar location and has a 150km radius.
A precipitating clouds near the radar site was found from the radar reflectivity map. You could see it is located SE of the center. The smaller plot shows the vertical structure of the cloud through the yellow line in the large plot. Like this, one can look at horizontal and vertical structure of clouds using radar.
The precipitating cloud. You could see rains near the ocean surface.
A closure view on the near surface area. There is a clear distinction between clear and precipitating area.
In my normal like in NYC, I often watch radar maps to make my own forecast in a next couple of hours. But it was a really interesting experience to watch a precipitating cloud from the radar map and my eyes nearly at the same time!