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Arcus
27 June 2015 16:45:56
12z GEM more akin to UKMO in holding the low out west with high pressure building in from the east. Low looks then to undercut the high.
Ben,
Nr. Easingwold, North Yorkshire
30m asl
David M Porter
27 June 2015 16:51:50

It wouldn't surprise me to see GFS in the next few runs somewhat reduce the intensity of the low in the atlantic next weekend. The way it suddenly ramps up the strength of the said low from 144hrs to 168hrs on it's 12z run looks more than somewhat odd to my eyes. UKMO at 144hrs couldn't be more different with HP strengthening from the east if anything.


Lenzie, Glasgow

"Let us not take ourselves too seriously. None of us has a monopoly on wisdom, and we must always be ready to listen and respect other points of view."- Queen Elizabeth II 1926-2022
Stormchaser
27 June 2015 17:24:52
All GFS needs is a signal for the jet to potentially kick up a gear and it tends to get carried away with westerly momentum.

Hopefully that will ring true this time around. The far less progressive solution from UKMO reinforces the notion but we need a similarly relaxed ECM run to really place GFS in the suspicious bin.
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Matty H
27 June 2015 18:15:06

ECM out to 96 and appears closer to the UKMO run


Matty H
27 June 2015 18:22:44

Or maybe not. The ECM 120 is virtually a carbon copy of the GFS for the same time. 


LeedsLad123
27 June 2015 18:25:57
All 3 main models appear very similar at 120 hours to me.
Whitkirk, Leeds - 85m ASL.
27 June 2015 18:28:11
Where do you view the charts? Both TWO and Wetter still show the 00z for 120.
Malcolm UserPostedImage
Wakefield & Gothenburg, SWE
27 June 2015 18:32:08

Ah, meteociel! Need to add that to my bookmarks. That's a great chart for t144. In line with the UKMO.


edit: Thanks Matty. I agree I prefer the wetterzentrale look.


Malcolm UserPostedImage
Wakefield & Gothenburg, SWE
Matty H
27 June 2015 18:32:52

Where do you view the charts? Both TWO and Wetter still show the 00z for 120.

Originally Posted by: WanderingLonelyAsACumulonimbusIncus 


Meteociel seem to be quickest, although I hate the look of their charts compared to wetterenzalerlzzalleterazzalenezzrer 


LeedsLad123
27 June 2015 18:33:08
Though at 144 hours the 850T's are a little cooler so maybe not as hot.
Whitkirk, Leeds - 85m ASL.
Ally Pally Snowman
27 June 2015 18:35:59

Agreed looks much better on Wetterzentrale . Nice chart maybe mid 30s in the SE.


http://www.wetterzentrale.de/pics/Recm1442.html


 


Bishop's Stortford 85m ASL.
27 June 2015 18:36:38

Though at 144 hours the 850T's are a little cooler so maybe not as hot.

Originally Posted by: LeedsLad123 


Remember we've had several days of heat beforehand though so a reduction in 850t's might not equal a cooldown? 


Malcolm UserPostedImage
Wakefield & Gothenburg, SWE
LeedsLad123
27 June 2015 18:37:58


 


Remember we've had several days of heat beforehand though so a reduction in 850t's might not equal a cooldown? 


Originally Posted by: WanderingLonelyAsACumulonimbusIncus 


You're quite right - that's just me nitpicking. They get warmer on Saturday anyway - so all in all an excellent run. Hopefully the GFS will back down and move in line with the Euros soon.


Whitkirk, Leeds - 85m ASL.
Ally Pally Snowman
27 June 2015 18:41:33

Hot run for the East mid 30s again with 20c 850s.


http://www.wetterzentrale.de/pics/Recm1682.html


 


Bishop's Stortford 85m ASL.
TimS
  • TimS
  • Advanced Member
27 June 2015 18:42:56
I don't like the ECM at all by 168 hours. It looks like an inevitably wet breakdown with Northern blocking and two weeks of gunk to follow. Give me a quick return of Westerlies and a proper reload anytime.
Brockley, South East London 30m asl
Ally Pally Snowman
27 June 2015 18:46:31

I don't like the ECM at all by 168 hours. It looks like an inevitably wet breakdown with Northern blocking and two weeks of gunk to follow. Give me a quick return of Westerlies and a proper reload anytime.

Originally Posted by: TimS 


 


Looks like the Azores high is in control for now.


 


Bishop's Stortford 85m ASL.
picturesareme
27 June 2015 18:48:22

I don't like the ECM at all by 168 hours. It looks like an inevitably wet breakdown with Northern blocking and two weeks of gunk to follow. Give me a quick return of Westerlies and a proper reload anytime.

Originally Posted by: TimS 


 


crikey you sound like somebody else on here with quotes like that. 😂


looks hot humid and potentially increasingly thundery to me.

Ally Pally Snowman
27 June 2015 18:54:38

Azores high moves in cooler but still mid 20s for the South.


http://www.wetterzentrale.de/pics/Recm1921.html


 


Bishop's Stortford 85m ASL.
David M Porter
27 June 2015 18:58:17

Personally, I'm treating all output for beyond Friday with a pinch of salt at the moment. ECM 12z seems to be backing up GFS wrt a breakdown of sorts from the west next weekend, but I'll only become more convinced of this happening if the models remain consistent with this over the coming few days.


It's worth remembering that up until 2-3 days ago, most model runs were indicating that this plume during the week ahead would only briefly affect the SE of the UK, while areas further to the north and west remained under the influence of the atlantic. The HP to the east now looks as though it will have more of a say in things than appeared to be the case a few days back. I think that sometimes they have a tendency to underestimate the strength of areas of HP while at the same time overcooking lows coming in from the west.


Lenzie, Glasgow

"Let us not take ourselves too seriously. None of us has a monopoly on wisdom, and we must always be ready to listen and respect other points of view."- Queen Elizabeth II 1926-2022
Ally Pally Snowman
27 June 2015 19:16:24


Personally, I'm treating all output for beyond Friday with a pinch of salt at the moment. ECM 12z seems to be backing up GFS wrt a breakdown of sorts from the west next weekend, but I'll only become more convinced of this happening of the models remain consistent with this over the coming few days.


Originally Posted by: David M Porter 


Indeed anything past 144h is very much FI. For what it's worth ECM breaks the weather down by day 10 but still pretty warm for the South with mid 20s.


http://www.wetterzentrale.de/pics/Recm2401.html


 


Bishop's Stortford 85m ASL.
Rob K
27 June 2015 19:23:53

Though at 144 hours the 850T's are a little cooler so maybe not as hot.

Originally Posted by: LeedsLad123 


Bear in mind that we reached 25C today with 850s of just 7-8C!


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." — Jerome K. Jerome
Polar Low
27 June 2015 19:32:27

It does not really matter about this breakdown David but it does about the general trend of pressure rises after these breakdowns from the south or s/west which at the moment looks a very good trend for summer 2015 as per IF which Matty posted earlier.


 



Personally, I'm treating all output for beyond Friday with a pinch of salt at the moment. ECM 12z seems to be backing up GFS wrt a breakdown of sorts from the west next weekend, but I'll only become more convinced of this happening if the models remain consistent with this over the coming few days.


It's worth remembering that up until 2-3 days ago, most model runs were indicating that this plume during the week ahead would only briefly affect the SE of the UK, while areas further to the north and west remained under the influence of the atlantic. The HP to the east now looks as though it will have more of a say in things than appeared to be the case a few days back. I think that sometimes they have a tendency to underestimate the strength of areas of HP while at the same time overcooking lows coming in from the west.


Originally Posted by: David M Porter 

Polar Low
27 June 2015 19:42:06

That's the key point and one very good trend to have right now for summer 2015


 



Azores high moves in cooler but still mid 20s for the South.


http://www.wetterzentrale.de/pics/Recm1921.html


 


Originally Posted by: Ally Pally Snowman 

Ally Pally Snowman
27 June 2015 20:35:53

With ECM mean this warm at day 10 an extended heatwave is still very much an option.


 


http://www.wetterzentrale.de/pics/Reem2402.html


 


Bishop's Stortford 85m ASL.
springsunshine
27 June 2015 21:06:26

A quick question based on the various model outputs to those much more expert than me...


What are the chances of this July being the hottest in the cet record and could we see a July cet above 20c??

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