Felly sgrifennodd :
somewhere
in Scotland this week.

I'm amazed at that report. On Sunday here (central southern England) it
was sunny, but decidedly cold, no more than 15c I would say.

As I posted in a thread replying to Colin Youngs, I recorded 22.5 on Sunday
(disagreeing markedly with the figure of Trawsgoed not so far away). My
wife was running in the "Race for Life" in Aberystwyth that day and suffered
quite badly from the head (despite, I'm sure she'd like me to add, coming
44th out of 1,200 and beating her keep fit instructor). It certainly _felt_
well in the 20's, and I'm pretty good at estimating temperature. It was
deckchairs out on the patio and t-shirt weather when we got back home around
13:00 (now I wouldn't have done _that_ in 17C).

My thermometer is part of a LaCrosse WS-3600 weather station and is well
screened with the standard plastic disc-shaped thingys, so I can't believe
direct sunshine had a significant effect. I wonder if, being on a
mountainside, there was some Foehn effect. Wind was predominantly NNE (from
the Pumlumon massif) at the time, suddenly switching to W at 13:55. At
exactly this time the temperature started to plummet (22.5@13:50), going
down 8 degrees (14.5@14:40) in 50 minutes.

Adrian (12 miles ESE Aberystwyth, 260m/860ft asl)

--
Adrian Shaw ais@
Adran Cyfrifiadureg, Prifysgol Cymru, aber.
Aberystwyth, Ceredigion, Cymru ac.
http://users.aber.ac.uk/ais uk