The Weather Outlook

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moomin75
03 June 2018 12:10:18

I don't want this to be seen as a "summer is over" post, but it won't surprise me one single bit if we have already "had" our summer for this year during May (and to a large extent, during the second half of April as well). This is similar to what happened in this part of the world last year, and is what tends to happen a lot of the time here. All too often, we get a really good April or a really good May (in 2012, that was a really good March) only for the actual summer itself, to then be crap.

Originally Posted by: johncs2016 

I am inclined to agree to a certain extent. 

However, the patterns this year are a good deal different to those we saw in 2012, 2008 and 2007 in my view.

The blocking is in a similar position, but we are currently and have been for some time, on the right side of the blocking.

What I feel is different this time compared to the years mentioned above, is that we are heading towards solar minimum, and in my view, this has had the effect of weakening the zonal flow significantly.

What we have seen since February is a recurring pattern, which has been waxing and waining, but has generally been set up to deliver us perfect synoptics (for cold in March and early April) to what we are seeing now.

I believe that we are "likely" to see a significant downturn in fortunes for a week or two in June, but that this recurring pattern will continue to do so throughout this summer.

I believe that we are on the cusp of a memorable summer this year. I don't think it will be comparable with 1976, but I believe that a repeat of 1995 could be on the cards with July and August benefiting from the recurring pattern of blocking to our north and east, but being far enough south to allow very warm to hot Easterly and South Easterly influences throughout the summer.

I do think we will see a fairly unsettled spell for a few weeks, but that summer is definitely not over this time around.

 


Witney, Oxfordshire

100m ASL

Jiries
03 June 2018 13:36:35

http://old.wetterzentrale.de/pics/MT8_London_ens.png

Today very warm at 27C but tomorrow and Tuesday should be near 30C or hit 30C despite the forecast show much lower at 21C tomorrow and 19C on Tuesday so that around 10C underestimate temp forecast?  Otherwise the graph or the BBC will be a massive wrong one.

Arcus
03 June 2018 15:30:21

http://old.wetterzentrale.de/pics/MT8_London_ens.png

Today very warm at 27C but tomorrow and Tuesday should be near 30C or hit 30C despite the forecast show much lower at 21C tomorrow and 19C on Tuesday so that around 10C underestimate temp forecast?  Otherwise the graph or the BBC will be a massive wrong one.

Originally Posted by: Jiries 

Going by the forecast it would appear to be cloud cover that will keep a lid on temperatures tomorrow in London. Doesn't mater how warm it is 1.5km up when you look at the 850s, if there's low cloud then it's almost irrelevant. Any breaks in the cloud then the forecast 21c will no doubt be surpassed. 


Ben,

Nr. Easingwold, North Yorkshire

30m asl

DEW
  • DEW
  • Advanced Member
03 June 2018 19:41:51

http://www.wxmaps.org/pix/temp4.html and  http://www.wxmaps.org/pix/prec4.html 

For a dozen years or more these were useful summaries of temp and precip 0-5 and 6-10 days ahead, and after a period in which the charts appeared intermittently, the address is no longer valid - 'domain expired'. What's happened? Not just that they haven't renewed but why? If the charts have been migrated, does anyon know where to?

 


War is God's way of teaching Americans geography - Ambrose Bierce

Chichester 12m asl

Gusty
03 June 2018 19:46:41

Summers are generally very good down here in the far SE irrespective of what's going on elsewhere. Infact some of our sunniest summers down here occur under a blowy SW'ly airmass thanks to sea breezes keeping convective stuff well inland.

Summer is summer whether its April or September.

Grab it while you can, when you can. 

Back to the models..things are looking humid / warm / potentially showery at times and all very pleasant IMO. (apart from tomorrow and Tuesday for us east coast folk)


Steve - Folkestone, Kent

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TimS
  • TimS
  • Advanced Member
03 June 2018 20:55:19

http://www.wxmaps.org/pix/temp4.html and  http://www.wxmaps.org/pix/prec4.html 

For a dozen years or more these were useful summaries of temp and precip 0-5 and 6-10 days ahead, and after a period in which the charts appeared intermittently, the address is no longer valid - 'domain expired'. What's happened? Not just that they haven't renewed but why? If the charts have been migrated, does anyon know where to?

 

Originally Posted by: DEW 

I know. Feels like the end of an era. I actually remember looking at them in the late 1990s, so they are at least 20 years old.


Brockley, South East London 30m asl
Polar Low
03 June 2018 21:35:28

My understanding is there might come back soon anyway you can look at these for the time being.

https://www.met.hu/en/idojaras/elorejelzes/europai_elorejelzes/

 

http://www.wxmaps.org/pix/temp4.html and  http://www.wxmaps.org/pix/prec4.html 

For a dozen years or more these were useful summaries of temp and precip 0-5 and 6-10 days ahead, and after a period in which the charts appeared intermittently, the address is no longer valid - 'domain expired'. What's happened? Not just that they haven't renewed but why? If the charts have been migrated, does anyon know where to?

 

Originally Posted by: DEW 

DEW
  • DEW
  • Advanced Member
04 June 2018 06:08:05

My understanding is there might come back soon anyway you can look at these for the time being.

https://www.met.hu/en/idojaras/elorejelzes/europai_elorejelzes/

Originally Posted by: Polar Low 

Thanks for this link. I hope the others come back as they gave absolute values, not just anomalies


War is God's way of teaching Americans geography - Ambrose Bierce

Chichester 12m asl

Tractor Boy
04 June 2018 12:00:14
Arcus
04 June 2018 15:45:32

http://old.wetterzentrale.de/pics/MT8_London_ens.png

Today very warm at 27C but tomorrow and Tuesday should be near 30C or hit 30C despite the forecast show much lower at 21C tomorrow and 19C on Tuesday so that around 10C underestimate temp forecast?  Otherwise the graph or the BBC will be a massive wrong one.

Originally Posted by: Jiries 

Looks like even the 21c forecast was a bit optimistic ... around the 18c mark seems to have been the London area max.

Shows what happens if you have this pesky low cloud that won't easily budge despite the +10 uppers.


Ben,

Nr. Easingwold, North Yorkshire

30m asl

Retron
04 June 2018 16:14:32

My understanding is there might come back soon anyway you can look at these for the time being.

Originally Posted by: Polar Low 

They're back!

As they're a spinoff of COLA - who wrote GRADS, as used by pretty much every weather site out there, including TWO and WZ - it was likely they'd return. Thank goodness, as they're something I've enjoyed using for the past couple of decades!

http://wxmaps.org/pix/temp4.png

 


Leysdown, north Kent
Jiries
04 June 2018 16:35:00

 

Looks like even the 21c forecast was a bit optimistic ... around the 18c mark seems to have been the London area max.

Shows what happens if you have this pesky low cloud that won't easily budge despite the +10 uppers.

Originally Posted by: Arcus 

Normally the clouds burn off early in the morning to absolute max at 11am but some how today didn't clear off and only brighten up a bit but went overcast so both forecast and graph done terribly wrong again.  Not happy to see 6z increasing and prolonging the warm uppers with rain spikes like last week so that would result overcast, damp and cool condition on the ground. 

LA2B MeridFlowEuro09
04 June 2018 16:48:59

 Hi to all on here.

It looks like the Jetstream is very busy in the Norwegian Sea and North as well as NW Atlantic NE USA and Canada at times.

Negative Arctic Oscillation and Strong Polar Vortex, felt over Norway and Finland NW Russia and Norwegian Sea as well.

High Pressure over Europe and UK- bring fairly settled though cloudy and also some sunny conditions hmm.

Fairly modest in terms of temperature, low on rainfall is what they are suggesting. But Low Pressure and rain by Mid-June is looking quite a possibillity.

.

Cold weather in Arctic, Canada NW Atlantic and Greenland as well as Finland Norway and NW Russia with some wintry conditions look good for last week and this week.


Climate is warming up, Scotland and N Ireland and North England still often gets some Winter frost, ice and snow, November to March, but the SE and South UK including S Central England and Wales, together with the West and North through the year, they sometimes get more rain than London and S SE England, where some longer dry fine spells without much heavy rain is seen every year.

The North Atlantic Sea often gets some much Colder Wintry conditions from November to March Months, and Mild SW and South winds tend to be more frequent over the East and SE of North Atlantic Sea, as the Azores High tends to stay in charge. 

With this warmth and heat, the Central and South UK has become mostly free of snow and frost.

picturesareme
04 June 2018 18:30:12

 

Looks like even the 21c forecast was a bit optimistic ... around the 18c mark seems to have been the London area max.

Shows what happens if you have this pesky low cloud that won't easily budge despite the +10 uppers.

Originally Posted by: Arcus 

We hit 23.5C today.. was warmer then  18C @ 7.30am this morning. 

The UK consists of more then just Landon 😉 Not sure what the UK hot spot was though.

DEW
  • DEW
  • Advanced Member
04 June 2018 18:50:52

 

They're back!

As they're a spinoff of COLA - who wrote GRADS, as used by pretty much every weather site out there, including TWO and WZ - it was likely they'd return. Thank goodness, as they're something I've enjoyed using for the past couple of decades!

http://wxmaps.org/pix/temp4.png

 

Originally Posted by: Retron 

Hurrah!

For those as ignorant as I am

COLA http://cola.gmu.edu/cola.html 

GRADS http://cola.gmu.edu/grads/ 


War is God's way of teaching Americans geography - Ambrose Bierce

Chichester 12m asl

Arcus
04 June 2018 19:25:32

 

We hit 23.5C today.. was warmer then  18C @ 7.30am this morning. 

The UK consists of more then just Landon 😉 Not sure what the UK hot spot was though.

Originally Posted by: picturesareme 

Yep, and I would expect that given the synoptics of NE flow, but the original question from Jiries was about 850s in the London area not resulting in 30c heat today. 

Anyway, as I'm sure we all know the reason for all this low cloud shield coming in from the North Sea is the usual cool early season SSTs versus the warmer air aloft and the NE flow which given an inversion will always generate the crud.


Ben,

Nr. Easingwold, North Yorkshire

30m asl

Polar Low
04 June 2018 20:02:57

 Thanks for chasing Darren

 

They're back!

As they're a spinoff of COLA - who wrote GRADS, as used by pretty much every weather site out there, including TWO and WZ - it was likely they'd return. Thank goodness, as they're something I've enjoyed using for the past couple of decades!

http://wxmaps.org/pix/temp4.png

 

Originally Posted by: Retron 

Polar Low
04 June 2018 20:08:18

The air looks quite a bit dryer over the next few days I can see or very hopeful that the sun will punch and burn holes in that no problem think that is reflected in wz prediction for London over the next few days should be sunny and warm even in the s/e

http://www.weersite.net/?actueel&ensemble&gfs_2m

 

 

 

 

Yep, and I would expect that given the synoptics of NE flow, but the original question from Jiries was about 850s in the London area not resulting in 30c heat today. 

Anyway, as I'm sure we all know the reason for all this low cloud shield coming in from the North Sea is the usual cool early season SSTs versus the warmer air aloft and the NE flow which given an inversion will always generate the crud.

Originally Posted by: Arcus 

picturesareme
04 June 2018 20:15:54

 

Yep, and I would expect that given the synoptics of NE flow, but the original question from Jiries was about 850s in the London area not resulting in 30c heat today. 

Anyway, as I'm sure we all know the reason for all this low cloud shield coming in from the North Sea is the usual cool early season SSTs versus the warmer air aloft and the NE flow which given an inversion will always generate the crud.

Originally Posted by: Arcus 

Ah I see. Sorry misunderstanding on my behalf.

DEW
  • DEW
  • Advanced Member
05 June 2018 05:43:29

The present slack pressure over the UK continuing for a while, but with a dramatic difference between GFS and ECM in a week's time. GFS has that 'big green blob' sitting over us i.e. a cool Atlantic depression while ECM revives the Azores high with a warm SW flow. 

BBC forecast sitting on the fence as of last night, GFS scenario probable but with a hint of alternative models prolonging the warmth.


War is God's way of teaching Americans geography - Ambrose Bierce

Chichester 12m asl

Brian Gaze
05 June 2018 05:51:57

GFS shows a quick way of kiboshing things.


Brian Gaze

Berkhamsted

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TimS
  • TimS
  • Advanced Member
05 June 2018 06:52:03

The present slack pressure over the UK continuing for a while, but with a dramatic difference between GFS and ECM in a week's time. GFS has that 'big green blob' sitting over us i.e. a cool Atlantic depression while ECM revives the Azores high with a warm SW flow. 

BBC forecast sitting on the fence as of last night, GFS scenario probable but with a hint of alternative models prolonging the warmth.

Originally Posted by: DEW 

ECM looks pretty cold and blobby to me. The long slow deterioration continues. I think it’s going to be another foul summer.


Brockley, South East London 30m asl
Jiries
05 June 2018 06:58:10

GFS shows a quick way of kiboshing things.

Originally Posted by: Brian Gaze 

Lot of LP around including Spain and Cyprus which they been getting daily rain showers.  Not good to see Spain under LP so that mean no hot weather there to transport to us.  Most of the warmth we getting now here are home grown.

Jiries
05 June 2018 07:01:14

 

ECM looks pretty cold and blobby to me. The long slow deterioration continues. I think it’s going to be another foul summer.

Originally Posted by: TimS 

Agreed because Spain where we get the over 30C heat source had been unsettled too long now and what ever warmth we got lately was home grown ones and often not clear skies with it.  Quite a lot of changes with the pressure pattern around Europe and UK.

David M Porter
05 June 2018 08:03:11

GFS shows a quick way of kiboshing things.

Originally Posted by: Brian Gaze 

Hmm, I could be wrong of course but I rather suspect that GFS is probably overcooking that LP somewhat. UKMO and ECM seem to have it as a rather flabbier feature.


Lenzie, Glasgow

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