...the Finnish F-18 encounter - of which nothing much more has been reported...
Well, I found this link to a flightglobal article:
PICTURES: Finnish F-18 engine checks reveal ‘no significant damage’
Isn't it ironic that I came across that link after reading
PBL's blog?
I don't recall reading what the visibility was
True! I didn't find any information about the flight conditions of that F-18 mission. I'm interested to hear about it, but I would not be amazed if it wasn't by flying in clear blue sky that their engines were "not-significantly-damaged"!
Best regards,
Sabenaboy