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uk.sci.weather (UK Weather) (uk.sci.weather) For the discussion of daily weather events, chiefly affecting the UK and adjacent parts of Europe, both past and predicted. The discussion is open to all, but contributions on a practical scientific level are encouraged. |
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#1
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Saturday, 18 December 2004
BRACKNELL (TF) 0900 SW F4 25km -SHRA 3/CU 4/SC 7/CI T043D020 RMK: Quite bright - the visibility is prevailing; in direction of shower (-SHRA) it is more like 15km; Other cloud in area Ac - the stratiform medium and upper clouds quite thin, and cirrus not particularly 'frontal' in character. The sun is trying to shine! [ OVERNIGHT DATA (18Z - 09Z): screen min: 02.2 grass min: -00.4 precipitation: tr other data: tr = 'trace' from shower in progress ]= 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) |
#2
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Saturday, 18 December 2004
BRACKNELL (TF) 0900 SW F4 25km -SHRA 3/CU 4/SC 7/CI T043D020 RMK: Quite bright - the visibility is prevailing; in direction of shower (-SHRA) it is more like 15km; Other cloud in area Ac - the stratiform medium and upper clouds quite thin, and cirrus not particularly 'frontal' in character. The sun is trying to shine! [ OVERNIGHT DATA (18Z - 09Z): screen min: 02.2 grass min: -00.4 precipitation: tr other data: tr = 'trace' from shower in progress ]= BRACKNELL (TF) 1200 SW F4 40km - 1/SC 6/AC //CI T063D038 RMK: there are two distinct layers of AC - the one reported is around 8000ft, and some more (thin) around 14000ft; Not sure how much cirrus above, but certainly not full cover and largish 'blue' bits seen; the shower reported earlier was of little consequence= -- 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) |
#3
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Saturday, 18 December 2004
BRACKNELL (TF) 0900 SW F4 25km -SHRA 3/CU 4/SC 7/CI T043D020 RMK: Quite bright - the visibility is prevailing; in direction of shower (-SHRA) it is more like 15km; Other cloud in area Ac - the stratiform medium and upper clouds quite thin, and cirrus not particularly 'frontal' in character. The sun is trying to shine! [ OVERNIGHT DATA (18Z - 09Z): screen min: 02.2 grass min: -00.4 precipitation: tr other data: tr = 'trace' from shower in progress ]= BRACKNELL (TF) 1200 SW F4 40km - 1/SC 6/AC //CI T063D038 RMK: there are two distinct layers of AC - the one reported is around 8000ft, and some more (thin) around 14000ft; Not sure how much cirrus above, but certainly not full cover and largish 'blue' bits seen; the shower reported earlier was of little consequence= BRACKNELL (TF) 1500 SW F3 35km - 1/SC 3/AC 7/AS T068D040 RMK: After a reasonable day so far, sky now looking much gloomier: the SC (around 4000ft base) is distant to the NE, the AC (altocumulus/~12000ft) is running in from the SW (presumably ahead of developments to come) and the AS I judge to be from thickening/lowering CS - base well up around 16000ft - can just see a CONTRAIL through it. There is genuine CI as well just visible through the disappearing gap to the NE. 'Looks like rain' is the general picture of the sky= 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) |
#4
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Saturday, 18 December 2004
BRACKNELL (TF) 1500 SW F3 35km - 1/SC 3/AC 7/AS T068D040 RMK: After a reasonable day so far, sky now looking much gloomier: the SC (around 4000ft base) is distant to the NE, the AC (altocumulus/~12000ft) is running in from the SW (presumably ahead of developments to come) and the AS I judge to be from thickening/lowering CS - base well up around 16000ft - can just see a CONTRAIL through it. There is genuine CI as well just visible through the disappearing gap to the NE. 'Looks like rain' is the general picture of the sky= BRACKNELL (TF) 1800 SSW F2 18km -RA 3/SC 8/AS T062D042 RMK: slight rain (-RA) began circa 1730Z, steady now. [ DAYTIME DATA (09Z - 18Z): screen max: 07.2 precipitation: tr ] 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) |
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