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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
April 27th 04, 06:17 PM
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[WR] Thunder heard - Bracknell Tawfield
1710Z
low, distant rumbles of thunder heard for past 10 minutes ... wind around Bft 5 (freshened up over past couple of hours). Notable shear from low to middle levels: low level wind from due north, medium level flow (from AC) from due *south*. Horizon from SSW to S to E to NE dark and menacing, but with the murk around, no convective tops discernible. 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) |
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#2
April 27th 04, 06:28 PM
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[WR] -TSRA - Bracknell Tawfield 1720Z
"Martin Rowley" wrote in message ... 1710Z low, distant rumbles of thunder heard for past 10 minutes ... wind around Bft 5 (freshened up over past couple of hours). Notable shear from low to middle levels: low level wind from due north, medium level flow (from AC) from due *south*. Horizon from SSW to S to E to NE dark and menacing, but with the murk around, no convective tops discernible. 1725Z update ... slight rain (-RA) for past 5 mins or so, with still distant thunder (TS). Wind freshening just a little more. 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) |
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#3
April 27th 04, 07:15 PM
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[WR] -TSRA continues Bracknell Tawfield 1800Z
At 18Z, thunder now near-overhead; single lightning 'flash' observed,
but CC rather than CG. Still only slight rain here (largish drops). Wind very flukey .. up to Bft6 for a time around 1730Z, then Bft4 ocnl5 at 18Z, now nearly calm!! Going off-line now as I don't trust the power supplies around 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) |
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#4
April 27th 04, 09:18 PM
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[WR] TS ceased .. -RA continues Bracknell Tawfield 2010Z
"Martin Rowley" wrote in message ... At 18Z, thunder now near-overhead; single lightning 'flash' observed, but CC rather than CG. Still only slight rain here (largish drops). Wind very flukey .. up to Bft6 for a time around 1730Z, then Bft4 ocnl5 at 18Z, now nearly calm!! Going off-line now as I don't trust the power supplies around here. .... back again. Sequence was:- 1820Z slight thunderstorm (i.e. low flash-rate), moderate rain. 1855Z thunderstorm ceased (by 10-min rule); moderate rain continuing. 1900Z-1930Z moderate ocnl heavy rain. 1930Z rain slight intensity. 2000Z still raining - slight .... 6mm at that time (since 1720Z) [Lots of frogs about!!!] During the 'TS' element when the storm was at its closest [1720Z-1855Z] 10 discharges noted - most intra-cloud/CC, and *no* CG observed in the immediate vicinity. Nothing like the intense activity further east of course ... but then we had our 'event' back in 2000! 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) |
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#5
April 27th 04, 09:29 PM
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[WR] RA Bracknell Tawfield 2015Z
"Martin Rowley" wrote in message ... Sequence was:- 1820Z slight thunderstorm (i.e. low flash-rate), moderate rain. 1855Z thunderstorm ceased (by 10-min rule); moderate rain continuing. 1900Z-1930Z moderate ocnl heavy rain. 1930Z rain slight intensity. 2000Z still raining - slight .... 6mm at that time (since 1720Z) [Lots of frogs about!!!] During the 'TS' element when the storm was at its closest [1720Z-1855Z] 10 discharges noted - most intra-cloud/CC, and *no* CG observed in the immediate vicinity. .... back to moderate rain again at 2015Z. 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) |
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#6
April 27th 04, 10:37 PM
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[WR] -TSRA - Bracknell Tawfield 1720Z
Martin,
Ive posted a pic on the web site of the only 'gap' in the rain - which shows some tops to the clouds. Phil -- http://homepage.ntlworld.com/phil.layton/meteo.htm "Martin Rowley" wrote in message ... "Martin Rowley" wrote in message ... 1710Z low, distant rumbles of thunder heard for past 10 minutes ... wind around Bft 5 (freshened up over past couple of hours). Notable shear from low to middle levels: low level wind from due north, medium level flow (from AC) from due *south*. Horizon from SSW to S to E to NE dark and menacing, but with the murk around, no convective tops discernible. 1725Z update ... slight rain (-RA) for past 5 mins or so, with still distant thunder (TS). Wind freshening just a little more. 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) |
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