This could be big. Not really sure how it works.

https://www.nextbigfuture.com/2017/10/darpa-captures-real-time-video-through-clouds.html

 

We could see through clouds with normal radar. The problem was resolution and processing time with chirped radar signals in the past.
http://www.sarusersmanual.com/ManualPDF/NOAASARManual_CH01_pg001-024.pdf

Christchurch, New Zealand (2010)
https://lta.cr.usgs.gov/SAR