Wednesday, 16 August 2006
BRACKNELL (TAWFIELD)
0900 SE F3 30km - 1/CU 4/CS 7/CI T177D134
RMK: tr Cu~025, 4Cs~200/220 (but might in fact be lower), 7Ci~280/300.
Partial halo present. Cirriform cloud has developed and/or spread in
rapidly during past hour. Before that, variable Ac/Ci.
[ OVERNIGHT DATA (18Z - 09Z):
screen min: 12.2 grass min: 10.2 precipitation: NIL [24hr total: 00.0
mm]
other data:
Mid-month figures:
Mean (of 24hr Max, 24hr Min) Temperature +0.7degC wrt whole-month eLTA
(71-00).
Rainfall 19 % of whole-month eLTA (71-00)
Air activity now back to levels prior to last Thursday.]=

--
Bracknell (Wooden Hill/Tawfield), Berkshire, UK
NGR: SU 854 667 Elev: 80m
Lat: 51° 23' 30'' N: Long: 00° 46' 28'' W

Wednesday, 16 August 2006
BRACKNELL (TAWFIELD)
0900 SE F3 30km - 1/CU 4/CS 7/CI T177D134
RMK: tr Cu~025, 4Cs~200/220 (but might in fact be lower), 7Ci~280/300.
Partial halo present. Cirriform cloud has developed and/or spread in
rapidly during past hour. Before that, variable Ac/Ci.
[ OVERNIGHT DATA (18Z - 09Z):
screen min: 12.2 grass min: 10.2 precipitation: NIL [24hr total: 00.0
mm]
other data:
Mid-month figures:
Mean (of 24hr Max, 24hr Min) Temperature +0.7degC wrt whole-month eLTA
(71-00).
Rainfall 19 % of whole-month eLTA (71-00)
Air activity now back to levels prior to last Thursday.]=

1400 ESE F3-4 45km - 1/CU T210D123
RMK: 1Cu med~040, 2Sc~060, 1Ac cas~080 (very well developed
vertically), scraps of Cirrus about: total cloud cover 2 oktas. About an
hour ago, a developing Cb with early-stage anvil to NW, but no activity
here.=

--
Bracknell (Wooden Hill/Tawfield), Berkshire, UK
NGR: SU 854 667 Elev: 80m
Lat: 51° 23' 30'' N: Long: 00° 46' 28'' W

Wednesday, 16 August 2006
BRACKNELL (TAWFIELD)

1400 ESE F3-4 45km - 1/CU T210D123
RMK: 1Cu med~040, 2Sc~060, 1Ac cas~080 (very well developed
vertically), scraps of Cirrus about: total cloud cover 2 oktas. About
an hour ago, a developing Cb with early-stage anvil to NW, but no
activity here.=

.... 1625Z first thunder heard from storm to distant NE (VCTS). Currently
(1637Z, odd rumble (1 per 3 or 4 mins) from bank of Cu con/Cb cap/Cb cal
ranged from NW-N-NE-ENE, with developing Cb cal to NE: generally dark
bases. In the immediate vicinity, bright sunshine, little cloud.

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" m wrote
in message ... 1625Z first thunder heard from storm to distant NE
(VCTS). Currently
(1637Z, odd rumble (1 per 3 or 4 mins) from bank of Cu con/Cb cap/Cb
cal ranged from NW-N-NE-ENE, with developing Cb cal to NE: generally
dark bases. In the immediate vicinity, bright sunshine, little cloud.

1700Z
.... no thunder heard for at least 10 mins, and whole angry mass of cloud
is steadily retreating northeastwards. Fine/sunny here.

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)

Wednesday, 16 August 2006
BRACKNELL (TAWFIELD)
0900 SE F3 30km - 1/CU 4/CS 7/CI T177D134
RMK: tr Cu~025, 4Cs~200/220 (but might in fact be lower), 7Ci~280/300.
Partial halo present. Cirriform cloud has developed and/or spread in
rapidly during past hour. Before that, variable Ac/Ci.
[ OVERNIGHT DATA (18Z - 09Z):
screen min: 12.2 grass min: 10.2 precipitation: NIL [24hr total: 00.0
mm]
other data:
Mid-month figures:
Mean (of 24hr Max, 24hr Min) Temperature +0.7degC wrt whole-month eLTA
(71-00).
Rainfall 19 % of whole-month eLTA (71-00)
Air activity now back to levels prior to last Thursday.]=
1400 ESE F3-4 45km - 1/CU T210D123
RMK: 1Cu med~040, 2Sc~060, 1Ac cas~080 (very well developed
vertically), scraps of Cirrus about: total cloud cover 2 oktas. About an
hour ago, a developing Cb with early-stage anvil to NW, but no activity
here.=

1800 SE F3 45km - 1/CB 3/CI T205D102
RMK: 1Cb cap (very distant / to N & NE)~??, 1Cu hum~040, 2Sc (prob.
Ex-Cu)~060, 1Ac cas~100, 3Ci~250/280: strong 'mock-sun' visible.
[ DAYTIME DATA (09Z - 18Z):
screen max: 21.9 precipitation: tr
other data: 70th day when temperature reached / exceeded 21°C this year.
VCTS 1625-1700Z, with earlier light SHRA mid-afternoon. ]=

--
Bracknell (Wooden Hill/Tawfield), Berkshire, UK
NGR: SU 854 667 Elev: 80m
Lat: 51° 23' 30'' N: Long: 00° 46' 28'' W

"Martin Rowley" m wrote in
message ...

"Martin Rowley" m wrote
in message ... 1625Z first thunder heard from storm to distant NE
(VCTS). Currently
(1637Z, odd rumble (1 per 3 or 4 mins) from bank of Cu con/Cb cap/Cb cal
ranged from NW-N-NE-ENE, with developing Cb cal to NE: generally dark
bases. In the immediate vicinity, bright sunshine, little cloud.

1700Z
... no thunder heard for at least 10 mins, and whole angry mass of cloud
is steadily retreating northeastwards. Fine/sunny here.

Martin,

At Heathrow, showers could be seen along with TCU to be moving up from the
S. At around 1500 local one bang with a flash ( reported ) and moderate
rain - amounting to 5mms on the 18z synop. At Guildford, jist the 0.5mm with
a much weaker affair looking at the web cam. Looks as though it developed as
it moved N.

Phil