distant thunder heard ~1425Z
rain (with distant thunder) ~1440Z

Now (1445Z) ... thunder getting louder (closer): no lightning seen yet.
AirTemp: 26.8degC, DewPoint: 17.9degC (Max: 28.2degC)
5 oktas TCU, 2 oktas Cb cal .... Cb activity (TS) appears to be
concentrated in the NE quadrant: I say 'appears', because the sky is
(has been) so hazy that cloud development has been difficult to observe.

Wind getting gusty (Bft 5 at the moment), and sky greyer.


--
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)

squally wind to Bft 6 around 1500Z ... very threatening sky
1510Z ... rain now moderate, squally wind.
1512Z ... now moderate thunderstorm, with moderate, ocnl heavy rain:
hail also observed - no great quantity.
Visibility 1515Z: 1km

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 ...

squally wind to Bft 6 around 1500Z ... very threatening sky
1510Z ... rain now moderate, squally wind.
1512Z ... now moderate thunderstorm, with moderate, ocnl heavy rain:
hail also observed - no great quantity.
Visibility 1515Z: 1km


1525Z ... rain now light, no hail for some time - a few CG strokes in
VCNTY. Emergency service sirens now evident all about, and have been for
some 10 - 15 minutes.

Martin. (Bracknell).

Martin Rowley wrote:
"Martin Rowley" wrote in
message

squally wind to Bft 6 around 1500Z ... very threatening sky
1510Z ... rain now moderate, squally wind.
1512Z ... now moderate thunderstorm, with moderate, ocnl heavy rain:
hail also observed - no great quantity.
Visibility 1515Z: 1km


1525Z ... rain now light, no hail for some time - a few CG strokes in
VCNTY. Emergency service sirens now evident all about, and have been

for

some 10 - 15 minutes.


1610Z ... thunder still rumbling around: nothing very frequent, much of
it CC (some quite lengthy rumbles), but the occasional CG strike
visible - frequency of these about 1 every 5 minutes. We seem to have
daughter cells developing in-situ, rather than storms advected in from
elsewhere. No *extreme* rainfall - enough to wet the garden etc., quite
well but no rivers of water or anything like that.

Martin.



It was heavy enough here Martin. Visibility dropped to about 300M in
heavy rain and hail. Footpaths were turned into fast-flowing streams.
Heaviest rain I've seen for about thirty years.


--
Graham Davis
Bracknell

"Martin Rowley" wrote in
message
squally wind to Bft 6 around 1500Z ... very threatening sky
1510Z ... rain now moderate, squally wind.
1512Z ... now moderate thunderstorm, with moderate, ocnl heavy rain:
hail also observed - no great quantity.
Visibility 1515Z: 1km


1525Z ... rain now light, no hail for some time - a few CG strokes in
VCNTY. Emergency service sirens now evident all about, and have been
for
some 10 - 15 minutes.

1610Z ... thunder still rumbling around: nothing very frequent, much of
it CC (some quite lengthy rumbles), but the occasional CG strike
visible - frequency of these about 1 every 5 minutes. We seem to have
daughter cells developing in-situ, rather than storms advected in from
elsewhere. No *extreme* rainfall - enough to wet the garden etc., quite
well but no rivers of water or anything like that.

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)

Thunderstorm ceased here ~1650Z (5.50PM) with rain having finished about
10 minutes prior to that. The hail element was dia. 5mm, but only
lasted for less than 1 minute. Some cracking cloud-ground (CG) strokes
in the immediate area, but of low frequency. Total rainfall this event
6.5mm, so we have had the first significant rainfall since early last
month. Cloud breaking well now, might see some late sunshine, but with
little or no wind, looking quite misty too.

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)

"Graham Davis" wrote in message
...



It was heavy enough here Martin. Visibility dropped to about 300M in
heavy rain and hail. Footpaths were turned into fast-flowing streams.
Heaviest rain I've seen for about thirty years.

.... goes to show what a sharp cut-off is associated with these beasts: I
was following on radar (& traffic reports), and any minute expected
something really torrential, but nothing occurred.
I could see not far away to the NE from us (we are on the SW edge of
Bracknell for those that don't know), a shaft of heavy rain reducing the
visibility significantly.

Martin.