Thread: massive pressure drop in Leeds
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Old May 28th 08, 09:22 AM posted to uk.sci.weather
Martin Rowley Martin Rowley is offline
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First recorded activity by Weather-Banter: Jun 2007
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Default massive pressure drop in Leeds
"Rob Brooks" bogus wrote in message
...
At about 0645 BST this morning the pressure fell by 5.5mb inside
the hour. This is shown on my barograph and also on my AWS Vantage
pro, so there is no instrument failure. The pressure has now
recovered, but the change on my barograph looks like some major
feature has passed through. I have not seen a pressure change of
this magnitude in such a short time scale- I can only assume it was
a storm cell that was very close by.

Rob
Farsley
near Leeds

.... similar change was picked up at Leeds/Bradford as well (the 'Q'
group at the end of the observation shows the QNH, or mean sea level
pressure). Later obs at top ...
EGNM 280650Z 02009KT 350V070 3500 -RA BKN001 BKN003 10/10 Q1004
EGNM 280620Z 01025G36KT 340V060 2000 RA BKN001 BKN003 10/10 Q1002
EGNM 280550Z 02013KT 360V070 0800 R32/P1500 RA BKN001 BKN002 10/10
Q1005
EGNM 280520Z 04009KT 010V090 0500 R32/1000 -RA BKN001 BKN002 10/10
Q10070520Z = QNH 1007 mbar: 0620Z = QNH 1002 mbar.As you state,
obviously associated with an active cell within the very 'pokey'
system running north late last night.Martin. -- Martin RowleyWest
Moors, East Dorset (UK): 17m (56ft) amslLat: 50.82N Long: 01.88W
NGR: SU 082 023


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