I've put up a photo on uksevereweather (uksevereweather.org.uk) which shows
ordinary stratospheric cloud (stratocumulus castellanus) dark whilst the NLC
is white / light blue / pale orange, click "noctilucent cloud" in the left
hand frame. The splash pic has also been changed to the same photograph.

As for the relationship with storms, I always check for NLC after a cold
front clearance in summer but i'm not sure if stratospheric frontal activity
can really affect the air 50 miles up..... I read on the NASA website (or a
link off it) that NLC was first described after the Krakatoa volcanic event
and it's becoming commoner (due to global warming, hmm - more likely there
are more observers!).

Les
"Michael Mcneil" wrote in message
news:2de6bf553cd0d71881d060fd10f3f62a.45219@mygate .mailgate.org...
Any relationship to the calm after a storm?




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