Wednesday, 26 January 2005

BRACKNELL (TF)
0710 N F2-3 20km - 2/SC 4/AC T-005D-020
RMK: hoar frost; other cloud - 3 oktas Cirrus; Sc to north/northeast ~
3000ft; Ac thin, well-broken and around 12000ft.=

Notes:

The basic first-line format is:-
[Time/GMT]
[Wind direction .. compass points]
[Wind speed .. Beaufort force]
[Visibility .. metres / 9999 = 10km]
[Weather groups .. if any]
[Cloud layers .. amount/type]
[Screen temperature/T .. degrees/tenths]
[Dewpoint temp/D .. degrees/tenths]

--
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, 26 January 2005

BRACKNELL (TF)
0710 N F2-3 20km - 2/SC 4/AC T-005D-020
RMK: hoar frost; other cloud - 3 oktas Cirrus; Sc to north/northeast ~
3000ft; Ac thin, well-broken and around 12000ft.=
0900 NNE F3 25km - 7/SC T006D-021
RMK: Sc (Stratocumulus) spread down from north in past hour - around
4500/5000ft, fairly thin but few if any gaps now; temperature rose under
this cloud cover; Hard surfaces either dry (after overnight evaporation)
or slightly damp - yesterday evening's rain (only rain) small amount
here as below;
[ OVERNIGHT DATA (18Z - 09Z):
screen min: -00.5 grass min: -03.0 precipitation: 0.1
other data: first air-frost of the year! So far this winter, we have had
11 air frosts; as a comparison, last winter-half (i.e. including October
etc.), we had had 18 such events by this time in January. Running
monthly 24hr temperature anomaly currently +2.1degC]=


--
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, 26 January 2005

BRACKNELL (TF)
0710 N F2-3 20km - 2/SC 4/AC T-005D-020
RMK: hoar frost; other cloud - 3 oktas Cirrus; Sc to north/northeast ~
3000ft; Ac thin, well-broken and around 12000ft.=

0900 NNE F3 25km - 7/SC T006D-021
RMK: Sc (Stratocumulus) spread down from north in past hour - around
4500/5000ft, fairly thin but few if any gaps now; temperature rose under
this cloud cover; Hard surfaces either dry (after overnight evaporation)
or slightly damp - yesterday evening's rain (only rain) small amount
here as below;
[ OVERNIGHT DATA (18Z - 09Z):
screen min: -00.5 grass min: -03.0 precipitation: 0.1
other data: first air-frost of the year! So far this winter, we have had
11 air frosts; as a comparison, last winter-half (i.e. including October
etc.), we had had 18 such events by this time in January. Running
monthly 24hr temperature anomaly currently +2.1degC]=

1145 NNE F3-4 40km - 1/CU T028D-038
RMK: trace of developing Cumulus humilis (i.e. very limited vertical
depth), with 2 oktas Cirrus scattered about - nothing particularly
organised; visibility could be even better - a cracking day, with acres
of blue sky and strong sunshine: chill in the wind though given the low
dewpoint.=

--
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, 26 January 2005

BRACKNELL (TF)
0710 N F2-3 20km - 2/SC 4/AC T-005D-020
RMK: hoar frost; other cloud - 3 oktas Cirrus; Sc to north/northeast ~
3000ft; Ac thin, well-broken and around 12000ft.=

0900 NNE F3 25km - 7/SC T006D-021
RMK: Sc (Stratocumulus) spread down from north in past hour - around
4500/5000ft, fairly thin but few if any gaps now; temperature rose under
this cloud cover; Hard surfaces either dry (after overnight evaporation)
or slightly damp - yesterday evening's rain (only rain) small amount
here as below;
[ OVERNIGHT DATA (18Z - 09Z):
screen min: -00.5 grass min: -03.0 precipitation: 0.1
other data: first air-frost of the year! So far this winter, we have had
11 air frosts; as a comparison, last winter-half (i.e. including October
etc.), we had had 18 such events by this time in January. Running
monthly 24hr temperature anomaly currently +2.1degC]=

1145 NNE F3-4 40km - 1/CU T028D-038
RMK: trace of developing Cumulus humilis (i.e. very limited vertical
depth), with 2 oktas Cirrus scattered about - nothing particularly
organised; visibility could be even better - a cracking day, with acres
of blue sky and strong sunshine: chill in the wind though given the low
dewpoint.=

1800 N F1 25km - 6/SC 7/AC //CI T026D-032
RMK: not entirely sure about the cloud structure above the Ac; can't
see any stars, so assume 8 oktas cover, and before it got dark, Ac and
Ci was present.
[ DAYTIME DATA (09Z - 18Z):
screen max: 03.8 precipitation: NIL ]=

--
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, 26 January 2005

BRACKNELL (TF)
0710 N F2-3 20km - 2/SC 4/AC T-005D-020
RMK: hoar frost; other cloud - 3 oktas Cirrus; Sc to north/northeast ~
3000ft; Ac thin, well-broken and around 12000ft.=

0900 NNE F3 25km - 7/SC T006D-021
RMK: Sc (Stratocumulus) spread down from north in past hour - around
4500/5000ft, fairly thin but few if any gaps now; temperature rose under
this cloud cover; Hard surfaces either dry (after overnight evaporation)
or slightly damp - yesterday evening's rain (only rain) small amount
here as below;
[ OVERNIGHT DATA (18Z - 09Z):
screen min: -00.5 grass min: -03.0 precipitation: 0.1
other data: first air-frost of the year! So far this winter, we have had
11 air frosts; as a comparison, last winter-half (i.e. including October
etc.), we had had 18 such events by this time in January. Running
monthly 24hr temperature anomaly currently +2.1degC]=

1145 NNE F3-4 40km - 1/CU T028D-038
RMK: trace of developing Cumulus humilis (i.e. very limited vertical
depth), with 2 oktas Cirrus scattered about - nothing particularly
organised; visibility could be even better - a cracking day, with acres
of blue sky and strong sunshine: chill in the wind though given the low
dewpoint.=

1800 N F1 25km - 6/SC 7/AC //CI T026D-032
RMK: not entirely sure about the cloud structure above the Ac; can't
see any stars, so assume 8 oktas cover, and before it got dark, Ac and
Ci was present.
[ DAYTIME DATA (09Z - 18Z):
screen max: 03.8 precipitation: NIL ]=

2100 NW F1 12km - 8/ST T021D-011
RMK: Despite the radar showing PPN close to us, none observed here
atm.=

--
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
...
Wednesday, 26 January 2005

2100 NW F1 12km - 8/ST T021D-011
RMK: Despite the radar showing PPN close to us, none observed here
atm.=


You did well to avoid all the preicp. again, Martin !

Heathrow managed a few flakes :-
EGLL 262050Z 32004KT 280V350 6000 -SN OVC027 02/00 Q1030 TEMPO BKN013

and currently snowing at Southend and Stansted :-
EGMC 262150Z 33004KT 9000 -SN BKN037 02/M01 Q1029=
EGSS 262150Z 29003KT 5000 -SHSN SCT006 BKN009 00/M00 Q1029 RESN=

Jon.

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

"Martin Rowley" wrote in
message
...
Wednesday, 26 January 2005

2100 NW F1 12km - 8/ST T021D-011
RMK: Despite the radar showing PPN close to us, none observed here
atm.=


You did well to avoid all the preicp. again, Martin !


.... I wonder if the PPN (light as it was), was evaporating? Certainly I
was very closely looking for something to add to my days of snow this
winter (only 3 so far, 1 in Dec and 2 in Jan), but again most
disappointing. The cloud base (afasIcouldsee) was rather diffuse
illuminated by the urban lighting.

Martin.