DEW
  • DEW
  • Advanced Member
24 June 2020 07:16:02

The above post has stolen my thunder! Nevertheless


http://www.wxmaps.org/pix/prec4 shows v. warm week 1, average week 2; rain in the N week 1, in the S week 2


GFS: current HP to E giving warm S-ly flow but trough develops Fri 26th across UK; then a rather muddled situation with small depressions linked to main LP centre over Norway until that centre is over S England Fri 3rd (not all GFS charts show it as dramatic as above). HP then re-establishes from Azores Wed 8th = looking a bit thundery from S Fri 10th.


GEFS: Back to average temps by the weekend - mean is close to norm but op & controll definitely cool. Rain here and there, rather more in Scotland esp around the 27th.


ECM: keeps the main LP centre in the N Atlantic and that storm on Fri 3rd slips into the N Sea without passing over the UK


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Chichester 12m asl
johncs2016
24 June 2020 07:23:07

Originally Posted by: Brian Gaze 


 


I suggest we name this one Moomin. 




Yes, that would spell trouble for those southerners who don't want any rain. If you look at the above chart though, you will see that Scotland misses out out on that action altogether and is left with nothing other than probably, yet more easterly muck coming in from off the North Sea.


However, that is a chart which is typical of a southerly tracking jet stream these days. I can remember years ago (and we don't have to go back all that many years) when these southerly tracking lows would at the very least, usually clip the southern half of Scotland which means here in Edinburgh, we would also tend to join in with those southerners in getting the wet weather from that.


In winter, that in turn would usually lead to us getting more in the way of snowfall from these systems. Nowadays though, it is a completely different story with those lows tending to be further south so that we usually end up missing out on the action from them, altogether. Southerners might often complain about a lack of rainfall for their gardens, especially during the summer months.


Whenever we come to actually needing some rainfall though, I would say that we often have a much harder time in getting that, than those in the south of England who can at least rely on a plentiful supply of rain either from those southerly tracking lows, or from thunderstorms coming up from France at the end of a summer heatwave.


Here in Scotland, we often miss out on both of those things and even in a more westerly regime, we often find that most the rain is in the west of Scotland with very little of it reaching here in SE Scotland. That can be very frustrating on those occasions where we actually need to be getting some rain because that rain will often be very close by to our west on those occasions, with some quite high rainfall totals being recorded there on those occasions.


 


The north of Edinburgh, usually always missing out on snow events which occur not just within the rest of Scotland or the UK, but also within the rest of Edinburgh.
doctormog
24 June 2020 07:27:30
Actually the same GFS op run shows 40 to 50mm in the Edinburgh area in the next week (before that system).
moomin75
24 June 2020 07:33:10
All in all, and taking all the models into consideration, it's pretty clear that a considerable unsettled and cool spell is coming. The longevity and depth of this is still to be determined, but at least 7-10 days of changeable weather is coming up,sadly taking us well into July.
Witney, Oxfordshire
100m ASL
Ally Pally Snowman
24 June 2020 07:39:04

Interesting output this morning the ECM Op has another very warm spell from 144h to 192h. The ECM Para goes even more extreme and has another heatwave starting at 144h. GEM also very warm late on. Next week could throw up a last minute surprise yet.


 


Bishop's Stortford 85m ASL.
SJV
  • SJV
  • Advanced Member
24 June 2020 07:41:21

It definitely looks more unsettled from this weekend onwards with the best of the weather further south generally as high pressure ridges in on occasion without actually establishing. Changeable will be good gardening weather with some usability in there - no washout forecast.


Cool temperatures suggests below average and I do not see that in the current output. Under any cloud and rain temps will be suppressed but when we see a drier, more settled day in between the showers it'll become warm enough. Around the June/July average I think. Looking at the ECM though it could be above average at times if we deflect the lows a little further north.


Finally, there is still significant scatter in the GEFS meaning any long-term call heading deeper into July is futile at this stage.


 


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Gusty
24 June 2020 07:41:44

ECM at 144 looking toasty and settled with 30c (86f) being achieved again in the SE.


If this is cool and unsettled goodness knows what real unsettled weather would look like.



Steve - Folkestone, Kent
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doctormog
24 June 2020 07:45:21
Yes, it looks like there is the possibility of an improvement again after a few cooler and more unsettled days.
johncs2016
24 June 2020 08:07:10

Originally Posted by: doctormog 

Actually the same GFS op run shows 40 to 50mm in the Edinburgh area in the next week (before that system).


Yet on Gavin P.'s latest video during yesterday, the 10 day precipitation anomaly plot from the GFS was showing it to be drier than average here with any wetter than average conditions being confined to western Scotland. That wouldn't be possible if they were forecasting the sort of rainfall amounts which you are suggesting, as that would clearly make it a lot wetter than average here.


However, I will assume in this case, that the chart which I saw came from a different GFS run from the one which provided your suggested figures which is indeed, possible given the manner in which the models tend to flip-flop all the place these days (with the GFS tending to be the worst offender in that regard).


This means that even if the GFS have forecast around 40mm to 50mm for here as you have suggested, that will no doubt, probably be downgraded closer to the time frame in question, anyway.


 


The north of Edinburgh, usually always missing out on snow events which occur not just within the rest of Scotland or the UK, but also within the rest of Edinburgh.
TimS
  • TimS
  • Advanced Member
24 June 2020 08:08:33

Réminiscence here, rather than pattern match (the pattern is different) but this takes me back to the exact time of year back in 1995.

The June heatwave peaked at 33C at Barbourne on the 30th. After that we broke down - fairly dryly in the South - into a Westerly regime. I remember saying “that’s it for summer”. We had a NW/SE split for a few days. By the end of the next week we were at 28C in the S and the next - very humid - mini plume was starting.


Brockley, South East London 30m asl
Downpour
24 June 2020 09:56:10

Originally Posted by: moomin75 

All in all, and taking all the models into consideration, it's pretty clear that a considerable unsettled and cool spell is coming. The longevity and depth of this is still to be determined, but at least 7-10 days of changeable weather is coming up,sadly taking us well into July.


 



 


Umm, not really. 


 


Another misleading post?


 


Looks like a standard NW/SE split again – with the better of the weather the nearer one is to the white cliffs of Dover.


 


All in all, standard British summer fare – better in the South East, wetter up north. 


 


Situation normal. 


Chingford
London E4
147ft
Rob K
24 June 2020 10:57:06

Originally Posted by: Downpour 


 


 



 


Umm, not really. 


 


Another misleading post?


 


Looks like a standard NW/SE split again – with the better of the weather the nearer one is to the white cliffs of Dover.


 


All in all, standard British summer fare – better in the South East, wetter up north. 


 


Situation normal. 



But you're forgetting that Witney has moved to somewhere in the vicinity of St Kilda 


Agreed that after a hot couple of days it looks like a return to normalish summer weather, probably mostly dry down here with the odd wet day, and the chance of some warm spells. I don't see either a washout or a heatwave on the cards just yet, but either is still possible of course.


Yateley, NE Hampshire, 73m asl
"But who wants to be foretold the weather? It is bad enough when it comes, without our having the misery of knowing about it beforehand." β€” Jerome K. Jerome
eddied
24 June 2020 10:57:39
There will probably be some rain isn’t really considerably anything in this country. I for one was expecting some rain on occasion this summer.

Really does take joy in being glass half empty that Moomin chap. June hasn’t felt particularly bad here to be honest. Some wet days, sure, but plenty of usable ones and after such a dry and dusty spring it all felt pretty good. Now finishing with a minor heatwave.

I’m speaking as someone still missing walls from his house too so pretty attuned to rubbishy weather.
Location: Reigate, Surrey 105m ASL

Winter 22/23
Days snow falling: 4
Days snow on ground:8
Max snow depths: 6cm (December 19th ish)

Summer 2022 max 39C on July 19th
Summer 2021 max: 32C on July 18th
Summer 2020 max: 36C on July 31st
The Beast from the East
24 June 2020 11:01:04

Originally Posted by: TimS 


Réminiscence here, rather than pattern match (the pattern is different) but this takes me back to the exact time of year back in 1995.

The June heatwave peaked at 33C at Barbourne on the 30th. After that we broke down - fairly dryly in the South - into a Westerly regime. I remember saying “that’s it for summer”. We had a NW/SE split for a few days. By the end of the next week we were at 28C in the S and the next - very humid - mini plume was starting.



Was a great summer, personally for me as well as I had just left school and got my first car. I remember going to the WW2 parade in London in August 


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Downpour
24 June 2020 11:34:26

Originally Posted by: Rob K 


 


But you're forgetting that Witney has moved to somewhere in the vicinity of St Kilda 


Agreed that after a hot couple of days it looks like a return to normalish summer weather, probably mostly dry down here with the odd wet day, and the chance of some warm spells. I don't see either a washout or a heatwave on the cards just yet, but either is still possible of course.



 



Chingford
London E4
147ft
moomin75
24 June 2020 11:35:10

Originally Posted by: Rob K 


 


But you're forgetting that Witney has moved to somewhere in the vicinity of St Kilda 


Agreed that after a hot couple of days it looks like a return to normalish summer weather, probably mostly dry down here with the odd wet day, and the chance of some warm spells. I don't see either a washout or a heatwave on the cards just yet, but either is still possible of course.


In fairness Rob, I did not on this occasion mention a washout. I said a considerably more unsettled spell is incoming, which it clearly is. It's not misleading or hyperbole. The models are very changeable/unsettled after tomorrow and Friday, and I am not misleading anyone on this. 


Now, how long it will last this time is anyone's guess, but looking at the propensity for the Azores high to try to ridge in only to be forced back, suggests to me that a changeable and possibly quite unsettled July *could* be on the cards.


I am hoping the opposite, but I fear not.


Witney, Oxfordshire
100m ASL
Joe Bloggs
24 June 2020 12:28:47

People moan about this forum being too Southern England/London centric.


May I tentatively suggest that it has become too Moomin centric.


Moomin this, Moomin that. Moomin’s summer forecast, Moomin’s predictions, whether or not Moomin was right all along, whether or not Moomin will be wrong. 


We are absolutely OBSESSED with Moomin. The Moomin Output Discussion thread. 


It’s all good entertainment though isn’t it. More predictable than the models at least. 




And now I’ve just made it worse. πŸ˜‚πŸ˜‚πŸ˜‚πŸ˜€πŸ˜€πŸ˜€



Manchester City Centre, 31m ASL

doctormog
24 June 2020 12:32:32

Originally Posted by: Joe Bloggs 


People moan about this forum being too Southern England/London centric.


May I tentatively suggest that it has become too Moomin centric.


Moomin this, Moomin that. Moomin’s summer forecast, Moomin’s predictions, whether or not Moomin was right all along, whether or not Moomin will be wrong. 


We are absolutely OBSESSED with Moomin. The Moomin Output Discussion thread. 


It’s all good entertainment though isn’t it. More predictable than the models at least. 




And now I’ve just made it worse. πŸ˜‚πŸ˜‚πŸ˜‚πŸ˜€πŸ˜€πŸ˜€




Although I’m not convinced those are Moomins in the bottom right of the image. 


TimS
  • TimS
  • Advanced Member
24 June 2020 12:51:46

Originally Posted by: The Beast from the East 


 


Was a great summer, personally for me as well as I had just left school and got my first car. I remember going to the WW2 parade in London in August 



Same age as me then. Born 1976.


Brockley, South East London 30m asl
Gusty
24 June 2020 12:55:00

Originally Posted by: TimS 


Réminiscence here, rather than pattern match (the pattern is different) but this takes me back to the exact time of year back in 1995.

The June heatwave peaked at 33C at Barbourne on the 30th. After that we broke down - fairly dryly in the South - into a Westerly regime. I remember saying “that’s it for summer”. We had a NW/SE split for a few days. By the end of the next week we were at 28C in the S and the next - very humid - mini plume was starting.



I will never forget 1995. The year the landscape went to dust.


By mid August it looked like we were living in Southern Spain.


Steve - Folkestone, Kent
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