posted on Jan, 1 2008 @ 08:39 PM
Although the angles of the rays suggest a possible light source at the base (downward apex) or below the hill, I repeat, the sun is not behind or
below the cloud.
The summer sun has just set behind me (west) as I face the cloud (east).
At a very rough guess I would say the cloud was some 10 to 20 kilometres away. The reason it's difficult to judge distance is because - on the whole
- the cloud was like a white sheet of paper. The upper half especially was two-dimenional and mist-like (no billowing). The base, the downward apex,
was more complex, with three-dimensionality. The edges of the cloud extended outwards and upwards in straight lines until disappeared into windless
sunset/blue sky. It's location was (therefore also at a guess) above the ocean, some 10 or so kilometres off the coast.
As a meteorological event, It has some of the features of a low pressure cloud system increasing in energy and beginning to form a tornado (not
unheard-of here), but then I look again at how uniform it is. Tornado clouds are thick and swirling.
Thanks for comments.