"Vidcapper" wrote in message
...
On 16/03/2014 09:45, Freddie wrote:
On 15/03/14 16:17, Vidcapper wrote:
what could have caused such a rapid drop & rise in dewpoint?

I reckon it is just a bit of variation in the humidity of the airmass.


If so, I never realised there could be *that* much variability in a
supposedly stable airmass?

If the temperature fell when the humidity rose then the air density could
remain unchanged and no convection would result.

Cheers, Alastair.