Equivalent sea level pressur would be even higher surely?

The record is only 1078 and that's in siberia not greenland.

 

No, Rob K is saying that the 1070-5 mb occasionally shown over Greenland on charts is the pressure after being corrected to sea-level rather than that which would actually be experienced up on the plateau. All isobaric charts have to show sea-level pressures, or they'd be pretty meaningless. The 1078 record in Siberia would no doubt, in accordance with convention, also have been corrected to sea-level. It would be interesting to know the altitude of the place holding the record, though I was under the impression that Siberia is fairly flat.

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Maximun is thought to be around midnight tonight, possibly 1am or 2am. So even if the rise has slowed we should get there.

 

WRF model has 1050mb being reached very briefly for one hour at exactly midnight in SW England.

http://modeles16.meteociel.fr/modeles/wrfnmm/runs/2020011906/nmm_uk1-2-18-1.png?19-10

However, all the models are currently at least 1mb below what the actual readings are saying. So yes I agree we should get there in the next 12 hours.

Pressure at Edinburgh Gogarbank as at 11am this morning was 1042.7mb and still rising.

Since we are to the north of where the highest pressure is though, we are in a westerly wind which is blowing around the top of it and bringing in a lot of cloud, though still with some sunshine at times as well.

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We've upped from 1045 to 1048 in just over 2 hours. Air seems sparkly dry. Electric.

Gilbert White once wrote of the air being much electrified during the frost of 1785 so that "During those two Siberian days my parlour cat was so electric, that had a person stroked her, and been properly insulated, the shock might have been given to a whole circle of people."

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Pressure has now stopped rising here, and was stuck on 1042.7mb at Edinburgh Gogarbank as at 12 noon.

The pressure may well continue to rise down in England but for here in Edinburgh, it looks as though we have now slipped further into that westerly air flow which is coming in around the top of this area of high pressure, as the wind appears to picked up a bit over the last hour or so in this part of the world.

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We've upped from 1045 to 1048 in just over 2 hours. Air seems sparkly dry. Electric

After weeks and weeks of mild gunk, it makes a pleasant change to have a dewpoint around zero, doesn't it?

It's interesting that the calibration on my Oregon Scientific station seems to have gone a bit wonky.... it's reading 1041 but local official stations are reporting 1043 or 1044.

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It peaked at 1039.3mb here. Currently down to 1037.5.

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Pressure has now started to drop here, and is currently down to 1042.5mb at Edinburgh Gogarbank as at 1pm this afternoon with a lot more cloud around now which has resulted in there being no further recorded sunshine at Edinburgh Gogarbank during the last couple of hours.

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After weeks and weeks of mild gunk, it makes a pleasant change to have a dewpoint around zero, doesn't it?

It's interesting that the calibration on my Oregon Scientific station seems to have gone a bit wonky.... it's reading 1041 but local official stations are reporting 1043 or 1044.

I had problems a couple of years back with an Oregon set up. I still use it, but not as my main. It used to show pressure too low or rarely too high and always when we had HP. I use a Youshiko (inexpensive and certainly not cutting edge but it looks right every day for pressure; bit high for temps though).

The isobars around noon in GFS and Fax charts put your area at about 1044 Darren. We've been steady at 1048 for a couple of hours now, so no hopeful 1050 here.

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Interestingly the 6Z GFS shows a sub 930mb low just to the north of Scotland at 204 hours - quite a drop in just over a week!

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No, Rob K is saying that the 1070-5 mb occasionally shown over Greenland on charts is the pressure after being corrected to sea-level rather than that which would actually be experienced up on the plateau. All isobaric charts have to show sea-level pressures, or they'd be pretty meaningless. The 1078 record in Siberia would no doubt, in accordance with convention, also have been corrected to sea-level. It would be interesting to know the altitude of the place holding the record, though I was under the impression that Siberia is fairly flat.

Yes that is what I meant. Given the low temperatures and high altitude there, pressure readings as SLP equivalent must be slightly meaningless as you are modelling a huge slice of atmosphere that doesn’t exist.

I’m sure I remember reading that the record high pressure was over 1080mb, about 1081 or 1082, in Siberia? Maybe that has been discounted recently. 

edit: from the Guinness Book of Records:

The highest barometric pressure ever recorded was 1083.8mb (32 in) at Agata, Siberia, Russia (alt. 262m or 862ft) on 31 December 1968.

 

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We have moved up to 1049mb. 

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Here in Edinburgh, the pressure is now going back up and has reached 1042.5mb at Edinburgh Gogarbank as at 5pm this afternoon. That is now only 0.2mb less than today's earlier reported highest value for that particular station and we may well beat that in the next hour or so.

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I had problems a couple of years back with an Oregon set up. I still use it, but not as my main. It used to show pressure too low or rarely too high and always when we had HP. I use a Youshiko (inexpensive and certainly not cutting edge but it looks right every day for pressure; bit high for temps though).

The isobars around noon in GFS and Fax charts put your area at about 1044 Darren. We've been steady at 1048 for a couple of hours now, so no hopeful 1050 here.

XCWeather is worth watching at times like this - it has a handy "pressure" tab which shows the latest official readings.

https://xcweather.co.uk/

As for my station, it now says 1044 (a new record), but in reality it's 1046. I guess the cheaper sort of barometer sensor doesn't function as well in edge-cases like this!

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1048.76 being read here at the moment

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I don't know how accurate the barometer on iPhones is meant to be, but mine seems pretty close. With the altitude set to my home location it is reading 1047.8 hPa at sea level (1038.5 station pressure).

It's certainly sensitive - just moving it between the desk and the floor is enough to show a 0.1 hPa change in pressure.

Edit: half an hour later it has just touched 1048.

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Mumbles has reached 1049.0mb at 1800

I don't know how accurate the barometer on iPhones is meant to be, but mine seems pretty close. With the altitude set to my home location it is reading 1047.8 hPa at sea level (1038.5 station pressure).

It's certainly sensitive - just moving it between the desk and the floor is enough to show a 0.1 hPa change in pressure.

Edit: half an hour later it has just touched 1048.

Looks fairly accurate. My station is currently reading 1048.4mb. I calibrated it against Odiham this morning and it was 0.3mb higher than Odiham which seemed about right given the highest readings were in Wales.

Mumbles has reached 1049.0mb at 1800

According to Wikipedia the Welsh national record is 1049.2mb set at Sennybridge on 27 January 1992. That record is likely to go this evening.

https://en.wikipedia.org/wiki/List_of_atmospheric_pressure_records_in_Europe

In fact Sennybridge is reporting 1049.1mb at 1800 this evening

Still 1049.

Just been out for a stroll and the stars are absolutely on fire- bright, blueish and flickering.

There's frost re-forming and it feels far colder than the 2°C the thermo is saying. I suppose air that has been forced down is already lacking in moisture; will just get drier under compression. Desert-like temperature drops? 

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