The Weather Outlook

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tallyho_83
13 February 2019 00:46:31

As for hoping to get any much needed cold and snowy snaps this upcoming Spring- that will be very hard to develop- our busy meandering PFJ will have enough buffers to prevent any proper weather improvements and little if any chances of bringing colder air towards our NW Europe shores!!!.

Originally Posted by: LA2B MeridFlowEuro09 

'PFJ' denotes what?

 

 

 


Home Location - Vixen Tor Close, Okehampton, Devon (221m ASL)


Sean Moon

Magical Moon

www.magical-moon.com

picturesareme
13 February 2019 03:22:55

i think we all look forward to longer days and more useable weather.and some spring warmth . But looked what happened in for example 2012 after a wonderful March !!! Or 2007 after a wonderful april etc etc

Originally Posted by: sunny coast 

Why March? There are over 2 weeks of February left before we even begin March 

SJV
13 February 2019 06:55:42

 

'PFJ' denotes what?

 

 

 

Originally Posted by: tallyho_83 

polar-front jet stream

DEW
  • DEW
  • Advanced Member
13 February 2019 07:53:36

A cold mass of air from Iceland across to Norway in week 2, not something we've seen much of this winter.

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

But it's FI, and a late season northerly to give us a shock in March isn't supported by the current charts. Keep watching, though!


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

Chichester 12m asl

Gavin D
13 February 2019 09:47:27

Bar a very short blip back to average the overall theme is mild

image.thumb.png.eb8fe52209f4f8c992e6c8b770f100bb.png

Brian Gaze
13 February 2019 10:12:02

Not much change this morning. The cooler blip early next week is clear but in the longer term it continues to look mild.


Brian Gaze

Berkhamsted

TWO Buzz - get the latest news and views 

"I'm not socialist, I know that. I don't believe in sharing my money." - Gary Numan

AJ*
  • AJ*
  • Advanced Member
13 February 2019 11:38:11

 Yes but the weather is chaotic not random, this means that sometimes it is in a state that is more predictable than others

 

Originally Posted by: TomC 

Absolutely agree.  That's why weather forecasts are valid at all, and why their accuracy varies.  My point is that the accumulation of tiny inaccuracies in making a prediction from an initial state, when the prediction is iterated enough times to get to, say, 15 days ahead, results in completely invalid predictions.  That's why I agree with Gusty's comment 'A good place to start stripping out are the 16-30 dayers IMO' - I would say that they are not worth the paper they're not printed on.


Angus; one of the Kent crew on TWO.

Tonbridge, 40m (131ft) asl

tallyho_83
13 February 2019 12:01:39

 

Absolutely agree.  That's why weather forecasts are valid at all, and why their accuracy varies.  My point is that the accumulation of tiny inaccuracies in making a prediction from an initial state, when the prediction is iterated enough times to get to, say, 15 days ahead, results in completely invalid predictions.  That's why I agree with Gusty's comment 'A good place to start stripping out are the 16-30 dayers IMO' - I would say that they are not worth the paper they're not printed on.

Originally Posted by: AJ* 

Yes couldn't agree more with Gusty and yourself - this is a prime example below as to why they should be discontinued! 

I remember end of Jan this was the forecast by the Meto: - Notice they mention occasional milder interludes and that it was a possibility. Now here we are and have a week of temperatures of +12 to +15c by day and 10c by night which is not what i can refer to as temporarily returning to closer to normal, because closer to normal is around 6 to +7c? - See below as this exceptionally milder than average wasn't in any of their forecast was it? The Met Office got the cold start to Feb right but that was it! The rest of their forecast is totally incorrect/inaccurate and couldn't be more wrong even if it tried!? I,e Frosts becoming widespread and towards the end of the period there is a greater chance of it becoming even colder. Well, today it's the 13th February - So what they really mean't is to say something like "there was a greater chance of it becoming even milder if not feeling warmer and springlike."

This was in the short to medium range anyway and they still got that totally wrong! I mean this is the MET OFFICE for heavens sake!

Sorry to go OT but just proves that the Met Office are wrong! Thanks!

------------------------------------------------------------------------------

Met office

UK Outlook for Monday 4 Feb 2019 to Wednesday 13 Feb 2019:

Rain and hill snow will clear later on Monday, however further rain, sleet and snow will possibly arrive from the west on Tuesday. It will stay mostly cold, with frost and ice likely overnight. Thereafter, it is likely to stay changeable, with further spells of rain, sleet and snow interspersed by sunshine and showers. The wind will be brisk at times, with gales around exposed coasts and over higher ground. After a cold start to February, temperatures may temporarily return closer to normal, although further colder interludes are still possible. Overnight frosts are still likely to be widespread and towards the end of this period there is a greater chance of it becoming even colder.

UK Outlook for Thursday 14 Feb 2019 to Thursday 28 Feb 2019:

Generally cold conditions are often likely to dominate the weather through mid to late February, however confidence is low. The weather is likely to be a mixture of cold wintry, showery days and more mobile days with Atlantic fronts bringing rain across the UK, and occasional milder interludes remain possible. Towards late February there is the possibility of a colder, more easterly flow developing.


Home Location - Vixen Tor Close, Okehampton, Devon (221m ASL)


Sean Moon

Magical Moon

www.magical-moon.com

nsrobins
13 February 2019 12:35:55
Focusing on the short term, and it’s absolutely banging for outdoor stuff. 12C here in bright sunshine and this will continue until Saturday.
Neil

Fareham, Hampshire 28m ASL (near estuary)

Stormchaser, Member TORRO

Chiltern Blizzard
13 February 2019 13:16:27

 

Absolutely agree.  That's why weather forecasts are valid at all, and why their accuracy varies.  My point is that the accumulation of tiny inaccuracies in making a prediction from an initial state, when the prediction is iterated enough times to get to, say, 15 days ahead, results in completely invalid predictions.  That's why I agree with Gusty's comment 'A good place to start stripping out are the 16-30 dayers IMO' - I would say that they are not worth the paper they're not printed on.

Originally Posted by: AJ* 

Forecasts always have an element of uncertainty, and therefore the potential to be wrong. The issue for me is, firstly, how well this uncertainty is communicated (which i’d say it isn’t), and secondly how well the forecast verifies.  The latter can only be assessed by reviewing many such forecasts.  For all I know the MetO simply got unlucky, and in a hypothetical scenario where identical data was collected and processed by the models another five times, we’d have five outcomes with cold easterlies.   Just because you throw a ‘1’ doesn’t mean the dice is loaded!

if the 16-30 dayers have less than 75% verification (which would still allow for the outcome to differ from the forecast 1 time in 4) I’d argue they should be scrapped, or at least not published.  Even then, they should be extensively caveated to ensure the user doesn’t place undue assurance on the output.


Rendlesham, Suffolk 20m asl
Hungry Tiger
13 February 2019 14:28:08

 

Yes couldn't agree more with Gusty and yourself - this is a prime example below as to why they should be discontinued! 

I remember end of Jan this was the forecast by the Meto: - Notice they mention occasional milder interludes and that it was a possibility. Now here we are and have a week of temperatures of +12 to +15c by day and 10c by night which is not what i can refer to as temporarily returning to closer to normal, because closer to normal is around 6 to +7c? - See below as this exceptionally milder than average wasn't in any of their forecast was it? The Met Office got the cold start to Feb right but that was it! The rest of their forecast is totally incorrect/inaccurate and couldn't be more wrong even if it tried!? I,e Frosts becoming widespread and towards the end of the period there is a greater chance of it becoming even colder. Well, today it's the 13th February - So what they really mean't is to say something like "there was a greater chance of it becoming even milder if not feeling warmer and springlike."

This was in the short to medium range anyway and they still got that totally wrong! I mean this is the MET OFFICE for heavens sake!

Sorry to go OT but just proves that the Met Office are wrong! Thanks!

------------------------------------------------------------------------------

Met office

UK Outlook for Monday 4 Feb 2019 to Wednesday 13 Feb 2019:

Rain and hill snow will clear later on Monday, however further rain, sleet and snow will possibly arrive from the west on Tuesday. It will stay mostly cold, with frost and ice likely overnight. Thereafter, it is likely to stay changeable, with further spells of rain, sleet and snow interspersed by sunshine and showers. The wind will be brisk at times, with gales around exposed coasts and over higher ground. After a cold start to February, temperatures may temporarily return closer to normal, although further colder interludes are still possible. Overnight frosts are still likely to be widespread and towards the end of this period there is a greater chance of it becoming even colder.

UK Outlook for Thursday 14 Feb 2019 to Thursday 28 Feb 2019:

Generally cold conditions are often likely to dominate the weather through mid to late February, however confidence is low. The weather is likely to be a mixture of cold wintry, showery days and more mobile days with Atlantic fronts bringing rain across the UK, and occasional milder interludes remain possible. Towards late February there is the possibility of a colder, more easterly flow developing.

Originally Posted by: tallyho_83 

God honestly - when you think how things have turned out.

 

UserPostedImage


Gavin S. FRmetS.

TWO Moderator.

Contact the TWO team - [email protected]

South Cambridgeshire. 93 metres or 302.25 feet ASL.



picturesareme
13 February 2019 14:36:04

 

Absolutely agree.  That's why weather forecasts are valid at all, and why their accuracy varies.  My point is that the accumulation of tiny inaccuracies in making a prediction from an initial state, when the prediction is iterated enough times to get to, say, 15 days ahead, results in completely invalid predictions.  That's why I agree with Gusty's comment 'A good place to start stripping out are the 16-30 dayers IMO' - I would say that they are not worth the paper they're not printed on.

Originally Posted by: AJ* 

I personally would still take notice of them (professionals) over what (at times) emotionally unstable amateurs think will happen.

David M Porter
13 February 2019 17:15:23

In my opinion, when it has come to model watching this winter, we would have been better off by simply going by the UKMO runs a couple of times a day as this model only goes out to six days ahead. The other models which go a week or more ahead have had a total nightmare of a winter and have been as much use as a chocolate teapot. Yes, GFS did pick up on this week's mild spell a week or more before it actually began, but runs for a week or more ahead verifying as shown has not been the norm this winter.


Lenzie, Glasgow

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

scillydave
13 February 2019 17:34:11

 

Yes couldn't agree more with Gusty and yourself - this is a prime example below as to why they should be discontinued! 

I remember end of Jan this was the forecast by the Meto: - Notice they mention occasional milder interludes and that it was a possibility. Now here we are and have a week of temperatures of +12 to +15c by day and 10c by night which is not what i can refer to as temporarily returning to closer to normal, because closer to normal is around 6 to +7c? - See below as this exceptionally milder than average wasn't in any of their forecast was it? The Met Office got the cold start to Feb right but that was it! The rest of their forecast is totally incorrect/inaccurate and couldn't be more wrong even if it tried!? I,e Frosts becoming widespread and towards the end of the period there is a greater chance of it becoming even colder. Well, today it's the 13th February - So what they really mean't is to say something like "there was a greater chance of it becoming even milder if not feeling warmer and springlike."

This was in the short to medium range anyway and they still got that totally wrong! I mean this is the MET OFFICE for heavens sake!

Sorry to go OT but just proves that the Met Office are wrong! Thanks!

------------------------------------------------------------------------------

Met office

UK Outlook for Monday 4 Feb 2019 to Wednesday 13 Feb 2019:

Rain and hill snow will clear later on Monday, however further rain, sleet and snow will possibly arrive from the west on Tuesday. It will stay mostly cold, with frost and ice likely overnight. Thereafter, it is likely to stay changeable, with further spells of rain, sleet and snow interspersed by sunshine and showers. The wind will be brisk at times, with gales around exposed coasts and over higher ground. After a cold start to February, temperatures may temporarily return closer to normal, although further colder interludes are still possible. Overnight frosts are still likely to be widespread and towards the end of this period there is a greater chance of it becoming even colder.

UK Outlook for Thursday 14 Feb 2019 to Thursday 28 Feb 2019:

Generally cold conditions are often likely to dominate the weather through mid to late February, however confidence is low. The weather is likely to be a mixture of cold wintry, showery days and more mobile days with Atlantic fronts bringing rain across the UK, and occasional milder interludes remain possible. Towards late February there is the possibility of a colder, more easterly flow developing.

Originally Posted by: tallyho_83 

 

The trouble with cherry picking statements like this is that you miss out the qualifiers (i.e. those words that weight the sentence with caveats). It's very obvious that the forecast gives an indication of the most likely outcome (as forecast by the models at that point in time) it doesn't guarantee that it will happen. To understand the forecast - which I'm sure that the vast majority of literate adults do - you need to read it in its entirety and think about the weight given to individual words. So, for example, in the sentence below there is a clear indication that the Met Office think it will still be cold with widespread frosts and in this respect they are of course wrong for this time period. However they are not saying that it is certain or indeed even highly likely and so when reading the forecast you have to balance the weighting of outcomes.

Overnight frosts are still likely to be widespread and towards the end of this period there is a greater chance of it becoming even colder.

In truth I find it irritating that people don't seem to be able to see this - it's not a Daily Mail type forecast which says that something will happen it instead gives the probable likelihood of the weather type.

I completely disagree with those saying that the forecasts should be axed - I'd much rather have an indication of the probable weather type than no indication at all.

There we are, rant over  - I feel better now!

P.s. Tally this wasn't aimed at you.

 

 

 


Currently living at roughly 65m asl North of Cowbridge in the Vale of Glamorgan.

Formerly of, Birdlip, highest village in the Cotswolds and snow heaven in winter; Hawkinge in Kent - roof of the South downs and Isles of Scilly, paradise in the UK.

SJV
13 February 2019 17:35:37

 

 

The trouble with cherry picking statements like this is that you miss out the qualifiers (i.e. those words that weight the sentence with caveats). It's very obvious that the forecast gives an indication of the most likely outcome (as forecast by the models at that point in time) it doesn't guarantee that it will happen. To understand the forecast - which I'm sure that the vast majority of literate adults do - you need to read it in its entirety and think about the weight given to individual words. So, for example, in the sentence below there is a clear indication that the Met Office think it will still be cold with widespread frosts and in this respect they are of course wrong for this time period. However they are not saying that it is certain or indeed even highly likely and so when reading the forecast you have to balance the weighting of outcomes.

Overnight frosts are still likely to be widespread and towards the end of this period there is a greater chance of it becoming even colder.

In truth I find it irritating that people don't seem to be able to see this - it's not a Daily Mail type forecast which says that something will happen it instead gives the probable likelihood of the weather type.

I completely disagree with those saying that the forecasts should be axed - I'd much rather have an indication of the probable weather type than no indication at all.

There we are, rant over  - I feel better now!

P.s. Tally this wasn't aimed at you.

 

 

 

Originally Posted by: scillydave 

Excellent post 

tallyho_83
13 February 2019 18:03:40

12z ensemble chart for London which now takes us into 1st Day of meteorological spring!

Apart from a day or two of average temps - it looks well above average throughout the rest of Feb! 


Home Location - Vixen Tor Close, Okehampton, Devon (221m ASL)


Sean Moon

Magical Moon

www.magical-moon.com

Chunky Pea
13 February 2019 18:21:56

In my opinion, when it has come to model watching this winter, we would have been better off by simply going by the UKMO runs a couple of times a day as this model only goes out to six days ahead. The other models which go a week or more ahead have had a total nightmare of a winter and have been as much use as a chocolate teapot. Yes, GFS did pick up on this week's mild spell a week or more before it actually began, but runs for a week or more ahead verifying as shown has not been the norm this winter.

Originally Posted by: David M Porter 

I would agree with you David. Charts after 5 to 7 days are basically useless, and while fun to look at, only lead to dejection in the longer term.

This winter, for me, has basically just confirmed that the ECMWF op runs are really not much better than those from other models like the GFS or UKMO, at least for this dank, dark and desolate wee corner of the world. 


Patrick,

East Galway, Ireland.

moomin75
13 February 2019 18:44:59

Incredible dry and mild GFS ensemble set this evening from the 12z. Unlike when these show cold, this is far more likely to verify. Bring it on. ☀️☀️☀️🌡🌡🌡

 

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

 


Witney, Oxfordshire

100m ASL

tallyho_83
13 February 2019 18:48:50

Incredible dry and mild GFS ensemble set this evening from the 12z. Unlike when these show cold, this is far more likely to verify. Bring it on. ☀️☀️☀️🌡🌡🌡

 

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

 

Originally Posted by: moomin75 

Thanks for sharing - isn't that the same 12z ensembles for London that I posted in previous page?


Home Location - Vixen Tor Close, Okehampton, Devon (221m ASL)


Sean Moon

Magical Moon

www.magical-moon.com

Brian Gaze
13 February 2019 18:51:46

Nice northern hemisphere 850hPa temp loop.


Brian Gaze

Berkhamsted

TWO Buzz - get the latest news and views 

"I'm not socialist, I know that. I don't believe in sharing my money." - Gary Numan

Gray-Wolf
13 February 2019 20:24:46

I do tend to give FI a look each day. Both to see what we keep on returning back to and for a laugh!

We do seem to keep on seeing H.P. in the mix either as an influencer or fully in control.

I don't know if the washout years progged me to always expect an Atlantic to be the 'go to ' with it storming on in and drenching us but this past 18 months has seemed to veer away from this with H.P. never very far away?

When I think of the end of the 80's I remember some very dry months, dry reservoirs and us needing to ship our water down south for the poor dears there?

I hope we are not running into another period of excess dry ( whatever the reasons) but this constant H.P. reset does have me wondering?

That said an early , mild Spring would cheer me tremendously!

 

 

 

 

 

 

 

 

 

 

 


Koyaanisqatsi

ko.yaa.nis.katsi (from the Hopi language), n. 1. crazy life. 2. life in turmoil. 3. life disintegrating. 4. life out of balance. 5. a state of life that calls for another way of living.

VIRESCIT VULNERE VIRTUS

Hungry Tiger
13 February 2019 21:04:10

Too early to say - But I wonder if we're shaping up for a really warm spring.

 


Gavin S. FRmetS.

TWO Moderator.

Contact the TWO team - [email protected]

South Cambridgeshire. 93 metres or 302.25 feet ASL.



Chiltern Blizzard
13 February 2019 21:20:15
Zero snow rows for London on the 12z GEFS!
Rendlesham, Suffolk 20m asl
roadrunnerajn
13 February 2019 21:20:32

Too early to say - But I wonder if we're shaping up for a really warm spring.

 

Originally Posted by: Hungry Tiger 

The trouble with a warm dry spring is that summer can be very average. In 03 or 04 (I can’t be sure without looking digging out my records) we had 56 days from late April to early June without any rain except a few mizzly days. It when went horrible. 


Germoe, part of the breakaway Celtic Republic. 80m asl
backtobasics
13 February 2019 22:49:36

Fantastic output tonight, let’s hope it can be maintained through to spring proper ! Days rapidly lengthening now and I am very much looking forward to spring.

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