The Weather Outlook

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Chunky Pea
07 July 2025 13:15:22

once the core of the high shifts to scandi, its game over in terms of advecting extreme uppers and allows the jet to push in.  ECM day 10 sends the azores to the rescue again but it looks like an outlier.  

Originally Posted by: The Beast from the East 

Very unusual I think to have a 'Scandi' at this time of year, but at least any heat it may bring would potentially be of the drier kind. The horror of stagnant 20c+ dewpoints of Summers 2022 and 2023 is not something I want to see repeated for a long while. 


Patrick,

East Galway, Ireland.

johncs2016
07 July 2025 13:41:23

Very unusual I think to have a 'Scandi' at this time of year, but at least any heat it may bring would potentially be of the drier kind. The horror of stagnant 20c+ dewpoints of Summers 2022 and 2023 is not something I want to see repeated for a long while. 

Originally Posted by: Chunky Pea 

If we're going to have a Scandi High, I would much rather see that occur in the winter with some really cold air from Siberia being brought in with that which then delivers a lot of really cold weather and snow to these parts.

Sadly, that is something which is very rare now and even if we do get a Scandi in he winter months, the air tends to be not as cold with that nowadays with the east coast often still seeing rain rather than snow with that.

I still wouldn't want to see a Scandi at this time of the year though because what we tend to get with that is winds from off the North Sea and yet more easterly muck, often with cooler temperatures as well (though perhaps not as cool nowadays as what we used to get with that due to the combination of ongoing climate change and higher SSTs).


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
07 July 2025 14:05:28

If we're going to have a Scandi High, I would much rather see that occur in the winter with some really cold air from Siberia being brought in with that which then delivers a lot of really cold weather and snow to these parts.

Sadly, that is something which is very rare now and even if we do get a Scandi in he winter months, the air tends to be not as cold with that nowadays with the east coast often still seeing rain rather than snow with that.

I still wouldn't want to see a Scandi at this time of the year though because what we tend to get with that is winds from off the North Sea and yet more easterly muck, often with cooler temperatures as well (though perhaps not as cool nowadays as what we used to get with that due to the combination of ongoing climate change and higher SSTs).

Originally Posted by: johncs2016 

Depends how far away the Scandi centre is. We had a similar pattern in early August 2004 - if there's a weakish high up in NE Scandinavia then it can usher in very humid, very unstable Southerlies with low pressure incursions from Biscay, and that can mean lots of rain. 

Doesn't seem to be happening in the current runs, rather it's slipping away even more quickly and then either LP is setting up over Scotland or HP is ridging in (ECM).


Brockley, South East London 30m asl
TheJudge
07 July 2025 15:03:42

It does baffle me when people treat potential signals deep in FI as gospel, like it is inevitable it will happen. Who exactly needs an apology? Even if we get a less settled, more average second half of July we'll still be comfortably above the average CET. Moomin's cooler July just isn't going to happen. A cooler second-half of July is possible, perhaps even likely if we get a less-favourable blocking high, but then it is not at all a stretch to predict that given how warm/hot the first half is looking nationally.

When I read longer-term analysis from very knowledgeable posters and forecasters (like the longer-range Met outlook, etc), they emphasis the uncertainty, because small changes in the pattern can make a huge difference to our little island in terms of rainfall distribution and where the warmest conditions will be. We're struggling for any real consistent signal into next week, with the usual suspects taking every operational as a given with knee-jerk posts (over on NW forums too) so why on Earth are we writing off the second half of the month if the models can't even resolve next week?

We're going to see a number of different options ahead for next week and beyond. Operationals are going to be all over the place; some hot outliers that need treating with caution, some cooler outliers like last night's GFS 18z, that have caught a few out that should know better. Ensembles are only going to be so much help because of the scatter into FI, and the ECM clusters may well play around with a few scenarios in the longer term as well. It's going to be fascinating and frustrating to try and pin down how we go forward from this forthcoming heatwave (that we need to not lose sight of and enjoy!), but it's safe to say it won't be as bad as some will have you think (note, average is not bad!).

Originally Posted by: Steel City Skies 

The 2 usual suspects do the opposite in the winter. Any chart in 10 days + ahead during winter that suggests snow/ice/beast from the east/blocking would ridicule those charts and say it would never happen. It’s is plain trolling and persistent WUM behaviour. 

However, in the summer, particularly like the current one, they have spent the last 8-10 weeks looking into distant charts to find charts they dismiss in winter, keep the agenda going until one day they will be right. It has become tiresome , yes it creates debate, but it’s now become repetitive. Months are wiped out and seasons dismissed from charts that we all know may materialise but often don’t.

It has got to the point where a thread could be created exclusively as a sticky and named after the 2 of them, maybe it would be a good idea? They can debate the charts and their agendas together? 

Out of interest, is there any way of blocking certain members so I don’t see their posts? Would improve my experience here daily.

Back on topic, from my eyes it is looking like about average temperatures, and that’s including northern areas and parts of Scotland. Plenty of sun and very usable weather for the next 6-7 days, a reliable timeframe. Enjoy it whislt we have it, it won’t be long before dark nights and wind and rain are being debated once again.  


Barby 551 ft above sea level
Devonian
07 July 2025 15:12:16

The 2 usual suspects do the opposite in the winter. Any chart in 10 days + ahead during winter that suggests snow/ice/beast from the east/blocking would ridicule those charts and say it would never happen. It’s is plain trolling and persistent WUM behaviour. 

However, in the summer, particularly like the current one, they have spent the last 8-10 weeks looking into distant charts to find charts they dismiss in winter, keep the agenda going until one day they will be right. It has become tiresome , yes it creates debate, but it’s now become repetitive. Months are wiped out and seasons dismissed from charts that we all know may materialise but often don’t.

It has got to the point where a thread could be created exclusively as a sticky and named after the 2 of them, maybe it would be a good idea? They can debate the charts and their agendas together? 

Out of interest, is there any way of blocking certain members so I don’t see their posts? Would improve my experience here daily.

Back on topic, from my eyes it is looking like about average temperatures, and that’s including northern areas and parts of Scotland. Plenty of sun and very usable weather for the next 6-7 days, a reliable timeframe. Enjoy it whislt we have it, it won’t be long before dark nights and wind and rain are being debated once again.  

Originally Posted by: TheJudge 

You can block people, the option is under the three dots, top right hand side of a post.

I enjoy good weather but it is only early July and it's gone on, month after month above normal, for a boringly long time. This above average temperature weather is likely to last for many more months - indeed the chances of a colder than average month any time soon are remote.

Devonian
07 July 2025 15:15:46

It is now

Originally Posted by: TimS 

then it's not for long

TheJudge
07 July 2025 15:24:25

You can block people, the option is under the three dots, top right hand side of a post.

I enjoy good weather but it is only early July and it's gone on, month after month above normal, for a boringly long time. This above average temperature weather is likely to last for many more months - indeed the chances of a colder than average month any time soon are remote.

Originally Posted by: Devonian 

Thank you, never noticed the 3 dots on people’s posts. Will sort it out now 👍


Barby 551 ft above sea level
The Beast from the East
07 July 2025 15:27:58

If the GFS is correct then the Met will have to do a bit of rewriting of their long-ranger, as it looks thoroughly unsettled for all (even if not "cool") by about the 17th, never mind the end of the month. The school holiday curse strikes again!

Originally Posted by: Rob K 

Another front loaded summer. seems a trend.  Cant remember the last blazing hot august we had


Purley, Surrey, 70m ASL

"We have some alternative facts for you"

Kelly-Ann Conway - former special adviser to the President

Brian Gaze
07 July 2025 15:31:29

Latest Met Office view on coming Hot Spell

Things will warm up this week, with heatwave criteria being reached in parts of the UK by the end of the week.

Temperatures could climb into the low 30s, although the heatwave isn’t expected to see temperatures quite as high as the one experienced at the end of June/early Jul

When will the heat end?

There are signs that less hot, or fresher, conditions may arrive from the west into the start of next week, but exactly how quickly this transfers eastwards is uncertain. It’s certainly possible that hot conditions may persist for a while longer, especially towards the south and east.

Originally Posted by: bledur 

I think that's the most likely scenario at the moment, but with a meandering low pressure system to the west or southwest of the UK it opens the possibility of a short spell of extreme heat. 


Brian Gaze

Berkhamsted

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Brian Gaze
07 July 2025 15:32:42

Another front loaded summer. seems a trend.  Cant remember the last blazing hot august we had

Originally Posted by: The Beast from the East 

August 2022 was the fourth warmest by CET.

Place Year Value 1961-90 1971-00 1981-10 1991-20 1659-2020

1 1995 19.2°C 3.4°C 3.2°C 3°C 2.7°C 3.5°C

2 1997 19°C 3.2°C 3°C 2.8°C 2.5°C 3.3°C

3 1975 18.7°C 2.9°C 2.7°C 2.5°C 2.2°C 3°C

4 2022 18.7°C 2.9°C 2.7°C 2.5°C 2.2°C 3°C

https://www.theweatheroutlook.com/twodata/cet.aspx 


Brian Gaze

Berkhamsted

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Heavy Weather 2013
07 July 2025 15:37:54

Interesting thread this on Twitter.

https://x.com/peacockreports/status/1942139300381872152?s=46&t=0CzXil3QOYbo8W1abHQyVQ 

Apparently a mountain Tourque event may be driving the models to a negative NAO. However, as the poster illustrates the models do more often that not overplay this. So the northern blocking could well be dropped soon. We shall see, but right now - hot in the medium terms remains the favoured option. 


Mark

Beckton, E London

Less than 500m from the end of London City Airport runway.

The Beast from the East
07 July 2025 15:50:18

August 2022 was the fourth warmest by CET.

Originally Posted by: Brian Gaze 

Doesnt stick in the memory, though coming after the record 40 in July it probably felt like a letdown

I do remember August 1995 very well. 


Purley, Surrey, 70m ASL

"We have some alternative facts for you"

Kelly-Ann Conway - former special adviser to the President

David M Porter
07 July 2025 15:59:22

If we're going to have a Scandi High, I would much rather see that occur in the winter with some really cold air from Siberia being brought in with that which then delivers a lot of really cold weather and snow to these parts.

Sadly, that is something which is very rare now and even if we do get a Scandi in he winter months, the air tends to be not as cold with that nowadays with the east coast often still seeing rain rather than snow with that.

I still wouldn't want to see a Scandi at this time of the year though because what we tend to get with that is winds from off the North Sea and yet more easterly muck, often with cooler temperatures as well (though perhaps not as cool nowadays as what we used to get with that due to the combination of ongoing climate change and higher SSTs).

Originally Posted by: johncs2016 

IIRC there was a strong HP over Scandi in late July/early August 1995 during the most prolonged of that summer's heatwaves. It's a while since I last looked at any archive charts from that summer but I seem to remember from the last time I did so that there was a strong link-up between the Azores High and the high over Scandinavia for a while. Probably about as strong a blocking high as we are likely to get at this time of year.


Lenzie, Glasgow

"A body of men holding themselves accountable to nobody ought not to be trusted by anybody." – Thomas Paine

Heavy Weather 2013
07 July 2025 16:42:15

After a relatively poor 0z and 06z GFS is completely different at 234hrs with the summer pattern that we have had so often this year remaining in place, particiarly in the south.


Mark

Beckton, E London

Less than 500m from the end of London City Airport runway.

Bertwhistle
07 July 2025 16:42:31

Another front loaded summer. seems a trend.  Cant remember the last blazing hot august we had

Originally Posted by: The Beast from the East 

5 of the last ten Julys have had a CET at least a full degree above average 

6 of the last ten Augusts have had a CET at least a full degree above average

And in any case August isn't really covered by these outlooks; the MetO signal relates only to the turn of the month. The broad message is the same. The models don't venture that far in detail. We can't write off an August, but if it does go cooler and unsettled, it'll even the score. 


Bertie, Itchen Valley.

Retire while you can still press the 'retire now' button.

Nick Gilly
07 July 2025 16:53:57

I've just seen the BBC Weather For The Week Ahead and after the current heatwave they are suggesting a brief blip before the Azores high builds back strongly again.

What model do they use? I forget.

Brian Gaze
07 July 2025 17:01:43

GFS 12Z looks hot or very warm in the south more or less throughout.

UserPostedImage 


Brian Gaze

Berkhamsted

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Bertwhistle
07 July 2025 17:10:15

I've just seen the BBC Weather For The Week Ahead and after the current heatwave they are suggesting a brief blip before the Azores high builds back strongly again.

What model do they use? I forget.

Originally Posted by: Nick Gilly 

Chris Fawkes mentioned the ECM and the GFS the other day. Others on TWO might throw more light. I saw it too and it matches what the mostly-rolled-out 12z is saying. Brian's seen the whole 12z and posted above.


Bertie, Itchen Valley.

Retire while you can still press the 'retire now' button.

Chidog
07 July 2025 17:11:49

The first four Ops out for seven days time have:

ICON - Low stalled out West, pretty much nationwide heat continuing

GFS - Low stalled out West but closer, W/E split, hot in East

UK Met - Barrels the low pressure through Ireland, unsettled few days to follow you would think

GEM - Keeps the low away for Monday giving another hot day then slides it through France, still warm for most but potentially very wet for the South

I think the models don't have a clue yet beyond Sunday

doctormog
07 July 2025 17:14:28

I guess the 12z GFS op run shows what could happen: https://www.wetterzentrale.de/maps/GFSOPUK12_366_48.png 

Still no sign of cooler than average temperatures for the majority for most of the time.


Brian Gaze
07 July 2025 17:14:45

This wouldn't really support the idea of a lower July CET.

UserPostedImage


Brian Gaze

Berkhamsted

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Bertwhistle
07 July 2025 17:15:36

Plume again with 40s back at end of run but we've seen that too many times lately- will no doubt be modified and that far out maybe removed but good to see a repeat of replacement Azores HP pushing up after brief regression. This pattern is becoming persistent and some time back the MetO suggested there was a signal for more warm/hot spells than usual this summer due to dry earth, high SSTs & other influences under the grand umbrella of warming.


Bertie, Itchen Valley.

Retire while you can still press the 'retire now' button.

Bertwhistle
07 July 2025 17:25:35

GFS of late reminds me of some of my children as teenagers (and beyond). Miserable as sin at 0600 having to get up- don't want breakfast etc etc; a bit more amenable at lunchtime- bit more of an appetite. Then planning to party at 6pm.


Bertie, Itchen Valley.

Retire while you can still press the 'retire now' button.

Bertwhistle
07 July 2025 17:28:03

I guess the 12z GFS op run shows what could happen: https://www.wetterzentrale.de/maps/GFSOPUK12_366_48.png 

Still no sign of cooler than average temperatures for the majority for most of the time.

Originally Posted by: doctormog 

Great image. The whole of NW Europe is on fire.


Bertie, Itchen Valley.

Retire while you can still press the 'retire now' button.

Brian Gaze
07 July 2025 17:36:11

The first four Ops out for seven days time have:

ICON - Low stalled out West, pretty much nationwide heat continuing

GFS - Low stalled out West but closer, W/E split, hot in East

UK Met - Barrels the low pressure through Ireland, unsettled few days to follow you would think

GEM - Keeps the low away for Monday giving another hot day then slides it through France, still warm for most but potentially very wet for the South

I think the models don't have a clue yet beyond Sunday

Originally Posted by: Chidog 

I still think that's the wild card for the first half of next week.


Brian Gaze

Berkhamsted

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