[WR] Pressure drop, Hampstead, London
 

Nowhere near the track of the warm-front wave, but the pressure
changes in the London area have been notable ... possibly (i.e. from
memory) the most rapid since the gale in October 2002:

Hampstead AWS (137m)
HH ppp tendency/3h
00 1018.5
01 1018.1
02 1017.4
03 1016.8 -1.7
04 1015.6 -2.5
05 1014.2 -3.2
06 1013.0 -3.8
07 1011.6 -4.0
08 1009.7 -4.5
09 1008.3 -4.7
10 1005.5 -6.1
11 1002.9 -6.8
12 999.8 -8.5
13 997.4 -8.1

Temperature now 10.8ºC in Hampstead (137m), and 10.1ºC
on my window sill (155m) here in Luton.

Philip Eden

[WR] Pressure drop, Hampstead, London
 

http://www.npl.co.uk/pressure/pressure.html

shows it well, but at time of posting, the trace looks to be starting to
rise.

Rob

"Philip Eden" philipATweatherHYPHENukDOTcom wrote in message
.. .
Nowhere near the track of the warm-front wave, but the pressure
changes in the London area have been notable ... possibly (i.e. from
memory) the most rapid since the gale in October 2002:

Hampstead AWS (137m)
HH ppp tendency/3h
00 1018.5
01 1018.1
02 1017.4
03 1016.8 -1.7
04 1015.6 -2.5
05 1014.2 -3.2
06 1013.0 -3.8
07 1011.6 -4.0
08 1009.7 -4.5
09 1008.3 -4.7
10 1005.5 -6.1
11 1002.9 -6.8
12 999.8 -8.5
13 997.4 -8.1

Temperature now 10.8ºC in Hampstead (137m), and 10.1ºC
on my window sill (155m) here in Luton.

Philip Eden

[WR] Pressure drop, Hampstead, London
 

"Philip Eden" philipATweatherHYPHENukDOTcom wrote in message
.. .
Nowhere near the track of the warm-front wave, but the pressure
changes in the London area have been notable ... possibly (i.e. from
memory) the most rapid since the gale in October 2002:

Hampstead AWS (137m)
HH ppp tendency/3h
00 1018.5
01 1018.1
02 1017.4
03 1016.8 -1.7
04 1015.6 -2.5
05 1014.2 -3.2
06 1013.0 -3.8
07 1011.6 -4.0
08 1009.7 -4.5
09 1008.3 -4.7
10 1005.5 -6.1
11 1002.9 -6.8
12 999.8 -8.5
13 997.4 -8.1

Temperature now 10.8ºC in Hampstead (137m), and 10.1ºC
on my window sill (155m) here in Luton.

Philip Eden



My figures in Chiswell Green (101m), are as follows

HH ppp tendency/3h
00 1017.9
01 1017.3
02 1016.8
03 1016.0 -1.9
04 1014.8 -2.5
05 1013.4 -3.4
06 1012.1 -3.9
07 1010.4 -4.4
08 1008.5 -4.9
09 1006.8 -5.3
10 1003.6 -6.8
11 1000.8 -7.8
12 997.6 -9.2
13 995.0 -8.6
14 993.6 -7.2
15 995.9
Temperature at 13:00 hrs 10.8°C

Alan Gardiner

[WR] Pressure drop, Hampstead, London
 

In uk.sci.weather on Sat, 20 Dec 2003 at 13:29:28, Philip Eden wrote :
Nowhere near the track of the warm-front wave, but the pressure
changes in the London area have been notable ... possibly (i.e. from
memory) the most rapid since the gale in October 2002:

Hampstead AWS (137m)
HH ppp tendency/3h
00 1018.5
01 1018.1
02 1017.4
03 1016.8 -1.7
04 1015.6 -2.5
05 1014.2 -3.2
06 1013.0 -3.8
07 1011.6 -4.0
08 1009.7 -4.5
09 1008.3 -4.7
10 1005.5 -6.1
11 1002.9 -6.8
12 999.8 -8.5
13 997.4 -8.1

It fell 20mb in the 8 hours from 4am, here.
--
Paul Hyett, Cheltenham

Email to pahyett[AT]activist[DOT]demon[DOT]co[DOT]uk