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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Old November 22nd 12, 12:10 PM posted to uk.sci.weather
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Default [OBS] Romsey - Thursday 22nd November 2012

It's a long while since I've placed an observation on here, so to
make up for lost time, I shall post a few today.

A cloudy start with outbreaks of slight rain, dying out by 0845Z.
Since then it's been increasingly sunny but increasingly windy,
the highest gusts of 36kt occurring at both 1047Z and 1135Z.
Workmen are laying long sections of gas pipes in our road but
already, half a dozen of their barricades have blown over like
skittles. It will be interesting to see how many are left standing
at the end of the day, assuming they're not righted.

The lower Sc layer has evolved into turbulent Cu. Small amounts
of Ac and Ci are visible above.

SYNOP 22/1150Z (current ob)
03/// 11575 61918 10133 20090 40115 58012 69911 70162 86831
333 85822 91031 90710 91136=

METAR
EG// 221150Z 19018G31KT 9999 BKN022 13/09 Q//// WHT=

Details:
wind... S by W, force 5.
visibility... 25km.
weather... cloudy.
clouds... 5/8 Cu 2200ft, 2/8 Sc 5000ft, 1/8 Ac 12000ft,
1/8 Ci 30000ft.
dry bulb... +13.3C.
dew point... 9.0C.
RH... 75%.
sea level pressure... 1011.5mb (falling).
6 hour rainfall (0600-1200Z)... 0.1mm.

beaufort letters (1050-1150Z)... c.

Nigel (Romsey, Hampshire)
40m amsl



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Old November 22nd 12, 03:08 PM posted to uk.sci.weather
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Default [OBS] Romsey - Thursday 22nd November 2012

The clouds filled in after 1300Z except for a slither of blue on the
southeastern horizon that lasted for another hour. It felt very mild
in the earlier sunshine despite the wind and no rain has fallen since
0900Z.

After a slight reduction, the wind has regained strength, frequently
reaching a steady force 6 in the past half hour and culminating in
a spike of 40kt at 1428Z.

A nicely timed pass from an aircraft flirting with the base of the
Cu has made estimation of cloud heights easier than normal.

SYNOP 22/1150Z
03/// 11575 61918 10133 20090 40115 58012 69911 70162 86831
333 85822 91031 90710 91136=
----------------------------------------------------------------
SYNOP 22/1450Z (current ob)
03/// 42570 81921 10128 20080 40088 57027 888// 333 84825
88650 91035 90710 91140=

METAR
EG// 221450Z 19021G35KT 9999 SCT025 OVC050 13/08
Q//// BLU=

Details:
wind... S by W, force 5.
visibility... 20km.
weather... overcast.
clouds... 4/8 Cu 2500ft, 8/8 Sc 5000ft.
dry bulb... +12.8C.
dew point... 8.0C.
RH... 72%.
sea level pressure... 1008.8mb (falling).
6 hour rainfall (0900-1500Z)... 0.0mm.

beaufort letters (1350-1450Z)... c.

Nigel (Romsey, Hampshire)
40m amsl



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Old November 22nd 12, 06:05 PM posted to uk.sci.weather
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Default [OBS] Romsey - Thursday 22nd November 2012

My afternoon entertainment of watching the gasworks barricades
blowing over was spoilt somewhat by a foreman displaying some
intelligence, draping sandbags meant for flood prevention of the
trench across the foot of each barricade to stabilise it. All very
well until it rains!

There's no rain yet to report but the wind is still audible, with a
peak gust so far of 43kt at 1608Z which is certainly nothing out
of the ordinary for November.

SYNOP 22/1150Z
03/// 11575 61918 10133 20090 40115 58012 69911 70162 86831
333 85822 91031 90710 91136=
----------------------------------------------------------------
SYNOP 22/1450Z
03/// 42570 81921 10128 20080 40088 57027 888// 333 84825
88650 91035 90710 91140=
----------------------------------------------------------------
SYNOP 22/1750Z (current ob)
03/// 12570 81923 10129 20078 40065 57023 69912 885// 333
10136 85625 88640 91035 90710 91141=

METAR
EG// 221750Z 19023G35KT 9999 BKN025 OVC040 13/08
Q//// BLU=

Details:
wind... S by W, force 6.
visibility... 20km.
weather... overcast.
clouds... 5/8 Sc 2500ft, 8/8 Sc 4000ft.
dry bulb... +12.9C.
dew point... +7.8C.
RH... 71%.
sea level pressure... 1006.5mb (falling).
max temp today... +13.6C.
12 hour rainfall (0600-1800Z)... 0.1mm.

beaufort letters (1650-1750Z)... c.

Nigel (Romsey, Hampshire)
40m amsl





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Old November 22nd 12, 09:11 PM posted to uk.sci.weather
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Default [OBS] Romsey - Thursday 22nd November 2012

Rain in the air was first noticed at 2015Z and it has just become
moderate on this ob with the beginnings of a pressure kick. The
onset of the rain coincided with a further increase in the wind to
force 7 and wild sounding gusts of 47kt at 2018Z. There could
well be some tree debris evident in the morning.

SYNOP 22/1150Z
03/// 11575 61918 10133 20090 40115 58012 69911 70162 86831
333 85822 91031 90710 91136=
----------------------------------------------------------------
SYNOP 22/1450Z
03/// 42570 81921 10128 20080 40088 57027 888// 333 84825
88650 91035 90710 91140=
----------------------------------------------------------------
SYNOP 22/1750Z
03/// 12570 81923 10129 20078 40065 57023 69912 885// 333
10136 85625 88640 91035 90710 91141=
----------------------------------------------------------------
SYNOP 22/2050Z (current ob)
03/// 41550 82026 10124 20087 40051 55014 76262 885// 333
86620 88640 91039 90710 91147=

METAR
EG// 222050Z 20026G39KT 5000 RA BKN020 OVC040
12/09 Q//// WHT=

Details:
wind... SSW, force 6.
visibility... 5000m.
weather... overcast with moderate rain.
clouds... 6/8 Sc 2000ft, 8/8 Sc 4000ft.
dry bulb... +12.4C.
dew point... +8.7C.
RH... 78%.
sea level pressure... 1005.1mb (falling, now rising).
max temp today... +13.6C.
12 hour rainfall (0900-2100Z)... 0.1mm.

beaufort letters (1950-2050Z)... c,cro,cr.

Nigel (Romsey, Hampshire)
40m amsl







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Old November 22nd 12, 10:03 PM posted to uk.sci.weather
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Default [OBS] Romsey - Thursday 22nd November 2012

I wasn't going to produce another ob but the amount of rain that
has fallen in the past hour is worthy of one, especially since only
0.1mm had fallen up to 2100Z today. Heavy rain commenced at
2055Z and if anything, pepped up to max intensity about half an
hour later, bringing more than half an inch of water into the gauge
inside one hour. The wind swung sharply round to WSW with a
marked decrease in speed.

SYNOP 22/1150Z
03/// 11575 61918 10133 20090 40115 58012 69911 70162 86831
333 85822 91031 90710 91136=
----------------------------------------------------------------
SYNOP 22/1450Z
03/// 42570 81921 10128 20080 40088 57027 888// 333 84825
88650 91035 90710 91140=
----------------------------------------------------------------
SYNOP 22/1750Z
03/// 12570 81923 10129 20078 40065 57023 69912 885// 333
10136 85625 88640 91035 90710 91141=
----------------------------------------------------------------
SYNOP 22/2050Z
03/// 41550 82026 10124 20087 40051 55014 76262 885// 333
86620 88640 91039 90710 91147=
----------------------------------------------------------------
SYNOP 22/2150Z (current ob)
03/// 41340 82414 10092 20084 40057 55002 76566 8452/ 333
81707 84620 88540 91024 90710 91137=

METAR
EG// 222250Z 24014G24KT 4000 +RA FEW007 SCT020
OVC040 09/08 Q//// GRN=

Details:
wind... SW by W, force 4.
visibility... 4000m.
weather... overcast with heavy rain.
clouds... 1/8 St 700ft, 4/8 Sc 2000ft, 8/8 Ns 4000ft.
dry bulb... +9.2C.
dew point... +8.4C.
RH... 95%.
sea level pressure... 1005.7mb (was falling, now rising).
rainfall last hour... 13.8mm.

beaufort letters (1950-2050Z)... c,cro,cr.
beaufort letters (2050-2150Z)... cr,cR.

Nigel (Romsey, Hampshire)
40m amsl











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