Came back from the crew bunk in the bowels of the aircraft several months ago. Stood behind my seat to look at all the flashes in front of the aircraft, looked at both ND's with no returns showing.
Leaned over the FO occupying the left seat and turned the radar dim to max, low and behold if it was not painting red it was magenta. Threw the pillock occupying my seat out and initiated the weather avoidance. Followed by a few home truths once clear.
I was horrified what might of happened if I had come back 15 mins later than I did.
Flying into horrendous wx is not beyond the imagination especially at night !