At 0500Z, SKC, vis 2 to 3km, BR (mist) and a lovely day in prospect,
after overnight min = +0.6degC, grass min -1.7degC.

At 0645Z, OVC ST, vis 1200-1500m, VCFG, as the wind just popped up to
Bft 1 or 2, from calm/near calm.

Now (0730Z): OAT = 2.5degC, RH = 95%, vis still ~ 1200m, but no VCFG as
far as I can detect - and the stratus has some 'light and shade' to it,
so hopefully not too thick and won't hang about too long.

Martin.
--
Martin Rowley: data via -
http://homepage.ntlworld.com/booty.weather/metindex.htm
Bracknell (Wooden Hill/Tawfield), Berkshire
NGR: SU 854 667 Elev: 80m
Lat: 51DEG23MIN30SEC(N): Long: 00DEG46MIN28SEC(W)

Dont know if Jon is around but the TAFs yesterday were spot on:

2004/04/08 16:15
Luton 081615Z 090018 01007KT 9999 SCT030
BECMG 0002 7000
TEMPO 0210 2000 MIFG BKN002 PROB40
TEMPO 0309 0300 FG BKN000
BECMG 1012 9999

2004/04/08 16:15
Heathrow 081615Z 090018 01005KT 9999 SCT030
BECMG 0003 7000 PROB30
TEMPO 0308 3000 BR
BECMG 0810 9999

showing the limit of the fog to the North of London which is evident from
this mornings reports.

As you say, looks like a fine and possibly best day of the Easter break in
the SE. This warm front is coming south at walking pace...

Phil
--

http://homepage.ntlworld.com/phil.layton/meteo.htm

"Martin Rowley" wrote in message
...
At 0500Z, SKC, vis 2 to 3km, BR (mist) and a lovely day in prospect,
after overnight min = +0.6degC, grass min -1.7degC.

At 0645Z, OVC ST, vis 1200-1500m, VCFG, as the wind just popped up to
Bft 1 or 2, from calm/near calm.

Now (0730Z): OAT = 2.5degC, RH = 95%, vis still ~ 1200m, but no VCFG as
far as I can detect - and the stratus has some 'light and shade' to it,
so hopefully not too thick and won't hang about too long.

Martin.
--
Martin Rowley: data via -
http://homepage.ntlworld.com/booty.weather/metindex.htm
Bracknell (Wooden Hill/Tawfield), Berkshire
NGR: SU 854 667 Elev: 80m
Lat: 51DEG23MIN30SEC(N): Long: 00DEG46MIN28SEC(W)

As you say, looks like a fine and possibly best day of the Easter break in
the SE. This warm front is coming south at walking pace...

Phil

Hi Phil,
cloud from this warm front slowly moving in from the North west after a
surprisingly chilly clear night.
Min temperature 2.1° C

best regards,
Alan

--
Wirral,Merseyside. 53.1 N 3.0 W 40m amsl
http://www.wirralcam.com/frame.htm

.... now (0830Z):

1 okta St (was 7 oktas about 15 mins ago)
5 oktas Sc - thin / well-broken
some Ci above.

Vis picking up (at least 6km, could be more), OAT now up to 5.1degC
(from the 2.5 of first report), as sun is fitfully shining strongly now.
A little very shallow/low-base Cu over Bracknell (could be as low as
800ft base ... i.e. similar to the St).

Martin.


--
Martin Rowley: data via -
http://homepage.ntlworld.com/booty.weather/metindex.htm
Bracknell (Wooden Hill/Tawfield), Berkshire
NGR: SU 854 667 Elev: 80m
Lat: 51DEG23MIN30SEC(N): Long: 00DEG46MIN28SEC(W)

"Martin Rowley" wrote in message
...
At 0500Z, SKC, vis 2 to 3km, BR (mist) and a lovely day in prospect,
after overnight min = +0.6degC, grass min -1.7degC.

At 0645Z, OVC ST, vis 1200-1500m, VCFG, as the wind just popped up to
Bft 1 or 2, from calm/near calm.

Now (0730Z): OAT = 2.5degC, RH = 95%, vis still ~ 1200m, but no VCFG as
far as I can detect - and the stratus has some 'light and shade' to it,
so hopefully not too thick and won't hang about too long.

Martin.

Something equally nasty happened at Heathrow :-

EGLL 090650Z 01007KT 310V070 0700 R09R/P1500 R09L/P1500 FG FEW000 BKN001
03/03 Q1020 BECMG 3000 SCT003
EGLL 090620Z 35004KT 310V040 9000 FEW038 04/02 Q1020 NOSIG

Jon.

Don't come to North East Cumbria

Persistant drizzle since dawn 1.0mm, temps +6c and visibility code 3/4 -
certainly not a day for the fells !


--
Paul Crabtree
Brampton N.E. Cumbria 117m ASL
Climatological Station 7076

http://mysite.freeserve.com/brampton...ome/index.html

"Phil Layton" wrote in message
...
Dont know if Jon is around but the TAFs yesterday were spot on:

I started the ball rolling Phil at 0430Z with the 1206. At that stage fog
looked a very low PROB at Heathrow with Luton the most likely.

Jon.

Oh Dear Jon - I spoke too soon!
EGLL 090750Z 35005KT 320V060 4300 BR FEW001 SCT002 BKN003 04/04 Q1021 BECMG
8000 FEW007 =
EGLL 090720Z 36006KT 310V040 1200 R09R/P1500 R09L/P1500 BCFG BR FEW000
SCT001 BKN002 03/03 Q1020 BECMG 4000 SCT006 =

An hours worth of LVPs ! I'll look at the Logs later, but these fogs that
arrive well after sunrise are a real ....

Phil



"Jon O'Rourke" wrote in message
...

Something equally nasty happened at Heathrow :-

EGLL 090650Z 01007KT 310V070 0700 R09R/P1500 R09L/P1500 FG FEW000 BKN001
03/03 Q1020 BECMG 3000 SCT003
EGLL 090620Z 35004KT 310V040 9000 FEW038 04/02 Q1020 NOSIG

Jon.

"Phil Layton" wrote in message
...
Oh Dear Jon - I spoke too soon!
EGLL 090750Z 35005KT 320V060 4300 BR FEW001 SCT002 BKN003 04/04 Q1021
BECMG
8000 FEW007 =
EGLL 090720Z 36006KT 310V040 1200 R09R/P1500 R09L/P1500 BCFG BR FEW000
SCT001 BKN002 03/03 Q1020 BECMG 4000 SCT006 =

An hours worth of LVPs ! I'll look at the Logs later, but these fogs that
arrive well after sunrise are a real ....

Phil

Hmm, I can imagine. Actually reminds me of an autumn morning while I was at
Boscombe Down. I 'confidently' did the fast jet brief just after dawn in
near CAVOK conditions, about an hour later thick fog, much to my dismay :-P

Jon.

"Jon O'Rourke" wrote in message
...
"Phil Layton" wrote in message
...
Oh Dear Jon - I spoke too soon!
EGLL 090750Z 35005KT 320V060 4300 BR FEW001 SCT002 BKN003 04/04
Q1021
BECMG
8000 FEW007 =
EGLL 090720Z 36006KT 310V040 1200 R09R/P1500 R09L/P1500 BCFG BR
FEW000
SCT001 BKN002 03/03 Q1020 BECMG 4000 SCT006 =

An hours worth of LVPs ! I'll look at the Logs later, but these fogs
that
arrive well after sunrise are a real ....

Phil

Hmm, I can imagine. Actually reminds me of an autumn morning while I
was at
Boscombe Down. I 'confidently' did the fast jet brief just after dawn
in
near CAVOK conditions, about an hour later thick fog, much to my
dismay :-P

.... these features are a real pain to forecast. The best I reckon we'll
ever be able to do is to outline the risk rather than explicitly
forecast post-dawn fog. As posted earlier, I could seen FG for a short
time in the direction of Easthampstead School / Park & Wildridings (for
those that know the area - not too far to the north), but here, in Gt.
Hollands/Tawfield, vis. no worse than 1000m at any time. And the fog
phase lasted less than 15 mins.

Some sort of micro-scale model linked to a network of local sensors
might give 30-45mins warning - expensive, and it will be a fine
judgement whether it is economically viable: Heathrow and similar
high-volume airports could probably justify though.

Martin.