Meteosat 8 satellite picture from Ferdinand Valk's site at 12.00 UTC
on Friday 9th January
http://www.fvalk.com/images/Day_imag...8-1200-EUR.jpg

Meteosat MSG-2 satellite picture from Bernard Burton's site at 12.00
UTC on Friday 9th January
http://www.woksat.info/etcra09m/ra09-msg-1200-uk.html

NOAA 18 satellite picture from Bernard Burton's site at 12.41 UTC on
Friday 9th January
http://www.woksat.info/etcra09/ra09-1241-b-uk.html

Areas of low cloud and fog over England. Snow cover over Europe
stands out clearly. Belgium largely sunny with most the earlier fog
patches now gone.


UK min. temps on Thursday night http://tinyurl.com/9uf5sp

Benson -5.0°C, Odiham -5.1°C, Thorney Island -5.2°C, Shoreham
-5.5°C, Lyneham -5.9°C, Wattisham and Manston -6.0°C, Bournemouth
(Hurn) -6.6°C, Yeovilton and Kenley -7.3°C, Aboyne -8.3°C.

Aultbea 7.2°C, Lerwick 7.3°C, Stornoway 7.5°C, Baltasound 8.0°C.


UK max. temps on Friday http://tinyurl.com/8f8vuk

Brize Norton -2.6°C, Little Rissington -2.5°C, Boscombe Down
-2.4°C, Odiham -2.3°C, Middle Wallop -2.2°C.

Altnaharra and West Freugh 6.9°C, Tiree and Ronaldsway 7.3°C,
Machrihanish 7.4°C, Aultbea 7.5°C, Lerwick 7.6°C, South Uist and
Stornoway 7.8°C, Fair Isle 7.9°C, Baltasound 8.4°C.

OGIMET summary http://tinyurl.com/7bxrkf


Rainfall radar http://www.meteox.com/h.aspx?r=&soort=loop24uur&URL
or http://www.metoffice.gov.uk/weather/uk/radar/

Nothing of significance on the rainfall radar over Britain on Friday.

Rainfall totals in 24 hours ending 18.00 UTC on Friday http://tinyurl.com/8p3zvr

Stornoway, Inverbervie, Andrewsfield, Herstmonceux and Manston 0.4
mm, Baltasound 1 mm.


Location of some UK stations http://www.metoffice.gov.uk/education/data/uk_map.html


Colin Youngs
Brussels

On 9 Jan, 22:10, Colin Youngs
wrote:
Meteosat 8 satellite picture from Ferdinand Valk's site at 12.00 UTC
on Friday 9th Januaryhttp://www.fvalk.com/images/Day_image/METEOSAT-8-1200-EUR.jpg

Meteosat MSG-2 satellite picture from Bernard Burton's site at 12.00
UTC on Friday 9th Januaryhttp://www.woksat.info/etcra09m/ra09-msg-1200-uk..html

NOAA 18 satellite picture from Bernard Burton's site at 12.41 UTC on
Friday 9th Januaryhttp://www.woksat.info/etcra09/ra09-1241-b-uk.html

Areas of low cloud and fog over England. * Snow cover over Europe
stands out clearly. * Belgium largely sunny with most the earlier fog
patches now gone.

UK min. temps on Thursday night *http://tinyurl.com/9uf5sp

Benson -5.0°C, *Odiham -5.1°C, *Thorney Island -5.2°C, *Shoreham
-5.5°C, *Lyneham -5.9°C, *Wattisham and Manston -6.0°C, *Bournemouth
(Hurn) -6.6°C, *Yeovilton and Kenley -7.3°C, *Aboyne -8.3°C.

Aultbea 7.2°C, *Lerwick 7.3°C, *Stornoway 7.5°C, *Baltasound 8.0°C.

UK max. temps on Friday *http://tinyurl.com/8f8vuk

Brize Norton -2.6°C, *Little Rissington -2.5°C, *Boscombe Down
-2.4°C, *Odiham -2.3°C, *Middle Wallop -2.2°C.

Altnaharra and West Freugh 6.9°C, *Tiree and Ronaldsway 7.3°C,
Machrihanish 7.4°C, *Aultbea 7.5°C, *Lerwick 7.6°C, *South Uist and
Stornoway 7.8°C, *Fair Isle 7.9°C, *Baltasound 8.4°C.

OGIMET summary *http://tinyurl.com/7bxrkf

Rainfall radar *http://www.meteox.com/h.aspx?r=&soort=loop24uur&URL
or *http://www.metoffice.gov.uk/weather/uk/radar/

Nothing of significance on the rainfall radar over Britain on Friday.

Rainfall totals in 24 hours ending 18.00 UTC on Friday *http://tinyurl.com/8p3zvr

Stornoway, Inverbervie, Andrewsfield, Herstmonceux and Manston 0.4
mm, *Baltasound 1 mm.

Location of some UK stations *http://www.metoffice.gov.uk/education/data/uk_map.html

Colin Youngs
Brussels

A surprisingly cold day max of -1.9°C here, about 15 km north of
Odiham (max -2.3°C), despite a little afternoon sunshine - my coldest
day (day max 09-21h) since 23 Nov 1993. Hope it survives to 0900
tomorrow, slow rise all evg in fog/St after min -6.8°C just before 20h
and now -3°C.

Stevenson screen, open exposure, COL Grade A site.

--
Stephen Burt
Stratfield Mortimer, Berkshire

schreef in bericht
...

On 9 Jan, 22:10, Colin Youngs
wrote:
UK min. temps on Thursday night http://tinyurl.com/9uf5sp
... Yeovilton and Kenley -7.3°C, Aboyne -8.3°C.

A surprisingly cold day max of -1.9°C here, about 15 km north of
Odiham (max -2.3°C), despite a little afternoon sunshine - my coldest
day (day max 09-21h) since 23 Nov 1993. Hope it survives to 0900
tomorrow, slow rise all evg in fog/St after min -6.8°C just before 20h
and now -3°C.
_______________

Today's situation also shows how misleading it can be to quote min. temps
read at 06.00 when the overnight fall in still in progress. For example,
the Met Office site shows that Yeovilton reported -8.7°C at 09.00
http://www.metoffice.gov.uk/weather/...er_graphs.html
and this figure also appears in the OGIMET list as the 24-hour minimum
http://tinyurl.com/7bxrkf .

An amateur observer in Flanders reported on the Belgian bulletin board that
his "overnight" minimum of -10.9°C occurred at 11.30 this morning in
freezing fog; another that his minimum of -11.5°C was recorded at 10.00,
also in fog, and was nearly 2 deg. C lower than the minimum of -9.6°C read
at the normal morning observation hour.

Colin Youngs
Brussels

On 9 Jan, 22:51, "Colin Youngs" wrote:
schreef in ...

On 9 Jan, 22:10, Colin Youngs
wrote:

UK min. temps on Thursday nighthttp://tinyurl.com/9uf5sp
*... Yeovilton and Kenley -7.3°C, Aboyne -8.3°C.

A surprisingly cold day max of -1.9°C here, about 15 km north of
Odiham (max -2.3°C), despite a little afternoon sunshine - my coldest
day (day max 09-21h) since 23 Nov 1993. Hope it survives to 0900
tomorrow, slow rise all evg in fog/St after min -6.8°C just before 20h
and now -3°C.
_______________

Today's situation also shows how misleading it can be to quote min. temps
read at 06.00 when the overnight fall in still in progress. * For example,
the Met Office site shows that Yeovilton reported -8.7°C at 09.00http://www.metoffice.gov.uk/weather/uk/sw/yeovilton_latest_weather_gr...
and this figure also appears in the OGIMET list as the 24-hour minimumhttp://tinyurl.com/7bxrkf.

An amateur observer in Flanders reported on the Belgian bulletin board that
his "overnight" minimum of -10.9°C occurred at 11.30 this morning in
freezing fog; another that his minimum of -11.5°C was recorded at 10.00,
also in fog, and was nearly 2 deg. C lower than the minimum of -9.6°C read
at the normal morning observation hour.

Colin Youngs
Brussels

It's been remarked upon previously in this ng, but one of the best
examples occurred on the very coild morning of 31 January 1972 across
England and Wales. At quite a number of sites the lowest temperature
occurred a little after 0900 GMT on 31 January, which then following
normal practice was entered as the min for 1 February. The cold spell
ended shortly afterwards and this temperature observed on 31 Jan
became the February (and annual) minimum at many sites.

There's no perfect method, of course, although personally I favour
00-00h - at least it is unarguable that the extreme occurred within
the 'civil day'. I still tabulate to 0900-0900 GMT for climatological
consistency, but maintain my records for 0900-0900h, 09-21/21-09h and
00-00h. But at this time of year mins read at 0600 are likely to be
quite a bit higher than those read at 0900.

--
Stephen Burt
Stratfield Mortimer, Berkshire