Satellite pictures. Much cheaper to use a satellite. 
I'll take the little wink face to mean that you googled "weather radar" and realized the basis for your argument was nonsense. "You can't bounce radar signals off clouds" - I'm still lol'ing!
So it seems you don't know how weather radars work then. Hint: it has nothing with bouncing to do.
Okay, they can accurately measure the distance to a cloud, and if it's not too large it's thickness. Still, no program exists that can use this information to create realistic 3D models IN REAL TIME. And weather radars still can't accurately describe the shape of a cloud.
The biggest problem is with creating a smart and quick enough software running on a quick and strong enough computer. A single bug would ruin everything. This software must have been developed and throroughly tested for at least a decade. So many algorithms could go wrong. The AI must be really well trained. If you believe that something like this exist, can you provide any evidence?
Not completely made up. I based it on another work of CGI and it's cost.
Based on another work of CGI or not, your ridiculous assumptions make it completely made up.
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