The spiderweb phenomenon that has been documented in TEPCO webcam video and screenshots of the Fukushima Daiichi nuclear plant is now visible several miles away at an intersection watched by the Futaba cam.
The Futaba cam alternates between a view of the traffic intersection and a far-reaching view of Daiichi in the background:
The yellow and blue colored webs may simply be caused by some sort of reflection or refraction. However, they are distinguished from the red lights (caused by the traffic signal) by their ephemeral nature: they appear and disappear within less than 10 seconds. I don't have the exact time but I have to move fast to capture them with screenshots.
Another interesting aspect of the Futbaba cam view is the 'dark cloud; that always emanates directly from an area at the Daiichi site. I've cropped the screenshot pasted above to emphasize the area:
The dark spot has remained for over an hour. I think its from the emissions visible in this screenshot from TEPCO webcam 1 (cam trained on unit 1):