On Sun, 18 Jan 2009 08:29:23 +0000, Hugh Newbury
wrote:

Having a look at what happened overnight, I find some surprising (to me)
movements of the pressure, temperature and humidity at about 2030 last
night. The barometer went from 995.9hPa to 998.2hPa, the temp from 8.5C
to 5.0C and the humidity from 95% to 89%, all in a matter of a few
minutes. The rain was coming down in torrents at the time too.

These figures are taken from my AWS.

Broadly speaking similar on my AWS down here at Hilton ( and at work I
will look at those figures_tomorrow morning.

The intense rain, that I noticed was flowing down the front of the
house like a stream, clocked up a rate of 200mm per hour for a very
very brief period. This some what suprises me - again the other
machine may have something similar though even a 1mile proximity can
produce different readings

R