'Euphoric rays' is not a meteorological term, Trevor, and it is difficult to
see why they are termed so as a title for the photo in the June edition of
Weather, unless the picture is meant to induce a feeling of euphoria in the
observer. However, crepuscular rays are formed by particulate matter in
suspension in the atmosphere, which may be composed of dust, salt particles,
pollution products, water or ice meteors. The rays become visible when the
illuminated particles are crossed by shadows cast by clouds, or more rarely,
mountains.

--
Bernard Burton
Wokingham, Berkshire, UK.

Satellite images at:
www.btinternet.com/~wokingham.weather/wwp.html
"Trevor Harley" wrote in message
news:2005072510565816807%taharley@dundeeacuk...
In June's "Weather" (which I have just got round to reading) there is a
picture of euphoric rays on page 143 and discussion of crepuscular rays
on page 175. What's the difference?

I've never heard of "euphoric rays" before. I've heard of and seen
crepuscular, but when I think about it, I'm not sure how they're
produced. What's illuminated - dust and other atmospheric particles?

Trevor
http://www.personal.dundee.ac.uk/~taharley/