Here is a screenshot of Fukushima during the rain storm Aug 31 at 3:47 (AM). Notice the line that emanates from unit 4 toward the crane:
Below find a comparative day-time shot. Notice the line connects up with the crane. I've noticed this effect in this same location before. Is it merely water on the lens or is it something else entirely?
I do not know the answer to that question but the repeated effect in the same location makes me wonder.
Here is a contrast view taken Sep 1, 2015 6:31 AM
Here are more screenshots from the rain storm: https://www.dropbox.com/s/butz0cuplocncll/Screenshot%202015-08-30%2012.26.21.png?dl=0