On Sun, 8 Jun 2008 14:42:48 -0700 (PDT), Mike Waller
wrote:

On Jun 8, 8:53?pm, Colin Youngs
wrote:

UK max. temps on Sunday ?http://tinyurl.com/5aughm

Fair Isle 13.7?C, ?Lerwick 14.8?C, ?Aberdaron and Aberporth 15.0?C,
Kirkwall 15.7?C.

Nottingham Watnall 24.4?C, ?Bournemouth and Gravesend 24.5?C,
Northolt 24.9?C, ?London MO 25.0?C, ?Great Malvern 25.1?C,
Knaresborough Scotton and Church Lawford 25.3?C, ?Farnborough 25.4?C,
Heathrow 25.5?C, ?Bracknell 26.6?C, ?Solent MRSC 26.9?C.

Suggest that the Solent reading be taken with some caution.
I was in Lee, and noticed that the door to the thermometer box was
open.
Although the sun wasn't shining in direct, it might well have affected
the readings.

Looks like the Met Office may have flagged the 1500 and 1600 readings
as suspect - the usual red bars at
http://www.metoffice.gov.uk/weather/...er_graphs.html
are "whitened" out but the reported temperatures are visible. The
sequence is:

BST - Deg C - Wind Dir
1200 22.9 N-NNE
1300 24.6 N-NNE
1400 25.3 N-NNE
1500 26.6 N-NNE
1600 26.8 N-NNE
1700 23.0 ESE

My own maximum 5 miles inland was at 1627 BST so that ties in with
Solent and the max temp here was 24.9, so 2.0 deg C lower, which is
not inconsistent with the usual gap between my _completely shaded_
screen and Solent MRSC, with a lightish offshore wind (9 to 14 mph) in
sunny conditions at this time of year.

The drop in temperature between 1600 and 1700 is consistent with the
change of wind direction from offshore to onshore - I've been there on
other occasions when this has happened (usually a sea Breeze) and a
rapid 3.8 degrees C drop is not unusual when this happens in those
conditions.

So as far as the open screen door is concerned, yes it may have
affected the readings but if so, I'd say by less than a degree C and
quite possibly not at all. If you hadn't mentioned this incident, I
wouldn't have been suspicious of Sunday's maximum there.

Dave
Fareham