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Old February 16th 08, 09:03 AM posted to uk.sci.weather
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Default Highest minimum sea level pressure in UK?

16/02/08 - 9:00 Weatheronline has Balatasound at 1035mb and Fylingdales at
1046mb.
Most sites well into the 1040s. Does anyone know the highest minimum
sea level pressure ever recorded in the UK?

Is the average at 9:00 today near the highest mean recorded? I reckon it is
about 1043 mb.

Does anyone keep track off these records?



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Old February 16th 08, 11:27 AM posted to uk.sci.weather
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Default Highest minimum sea level pressure in UK?

On Sat, 16 Feb 2008 10:03:04 UTC, "Andy Rumsey"
wrote:

16/02/08 - 9:00 Weatheronline has Balatasound at 1035mb and Fylingdales at
1046mb.
Most sites well into the 1040s. Does anyone know the highest minimum
sea level pressure ever recorded in the UK?

Is the average at 9:00 today near the highest mean recorded? I reckon it is
about 1043 mb.

Does anyone keep track off these records?


Generally yes, but whether records for the UK are kept and available I
don't know. The US DoD has a document MIL-HDBK-310 that records a mass
of environmental means, minima and maxima. IIRC the maximum pressure
recorded was somewhere in Siberia at 1080 mb.

MIL-HDBK-310 should be readily available as a pdf file.

--
Jim Backus running OS/2 Warp 3 & 4, Debian Linux and Win98SE
bona fide replies to j dot backus the circle thingy jita dot
demon dot co dot uk

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Old February 16th 08, 11:38 AM posted to uk.sci.weather
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Default Highest minimum sea level pressure in UK?

"Andy Rumsey" wrote in message
...
16/02/08 - 9:00 Weatheronline has Balatasound at 1035mb and Fylingdales at
1046mb.
Most sites well into the 1040s. Does anyone know the highest minimum
sea level pressure ever recorded in the UK?

Is the average at 9:00 today near the highest mean recorded? I reckon it
is about 1043 mb.

Does anyone keep track off these records?

Yes, Stephen will be along in a moment to give you chapter and verse.
Broadly speaking 1045mbar is not uncommon but high enough to
excite interest amongst anoraks. 1048mbar is rare over the British
Isles (off the top of my head, perhaps once per decade). 1050mbar
is very rare.

Philip


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Old February 16th 08, 03:39 PM posted to uk.sci.weather
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Default Highest minimum sea level pressure in UK?

On 16 Feb, 12:38, "Philip Eden" philipATweatherHYPHENukDOTcom wrote:
"Andy Rumsey" wrote in message

... 16/02/08 - 9:00 Weatheronline has Balatasound at 1035mb and Fylingdales at
1046mb.
Most sites well into the 1040s. *Does anyone know the highest minimum
sea level pressure ever recorded in the UK?


Is the average at 9:00 today near the highest mean recorded? I reckon it
is about 1043 mb.


Does anyone keep track off these records?


Yes, Stephen will be along in a moment to give you chapter and verse.
Broadly speaking 1045mbar is not uncommon but high enough to
excite interest amongst anoraks. 1048mbar is rare over the British
Isles (off the top of my head, perhaps once per decade). 1050mbar
is very rare.

Philip


There have been a few occasions when the whole of the British Isles
and all islands etc have been within the 1040 mbar isobar (on today's
12z ASxx, Shetland is at 1036 mbar and N Scotland, SW Ireland and SW
England are below 1040 mbar).

- On 9 Jan 1896, at 08h, with a H 1053 over western Scotland, the
lowest was 1042-1043 mbar in Kent. This is probably the highest on say
150 years of chart records.

- On 23 Jan 1907, with a H 1067 over Estonia, only Scilly was just
below 1040 mbar (Aberdeen reached 1051.8 mbar).

- On 7 Feb 1964, with H 1049 eastern Ireland, everywhere but Shetland
was 1040 mbar (Shetland 1036 mbar).

That's probably the three highest, so some way to go yet.
Incidentally, we've not seen a '1050' reading over the British Isles
since 16 Jan 1957, and we won't this time around either, although it's
notable that the northern North Sea has seen clsoe on 100 mbar rise
between 31 Jan/1 Feb (948 mbar Orkney) and this current high.

For those interested, you'll find more details in Weather, Feb 2007
(Vol 62, no 2), pp 31-41. The deepest depressions I covered in a
similar article in Jan 2007 Weather.

(There's no datasets with all this stuff in, btw - the research for
those two articles was done the old-fashioned way - published
references, poring over dusty DWRs, letters in Symons Met Mag,
etc ... !)

--
Stephen Burt
Stratfield Mortimer, Berkshire


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