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Ally Pally Snowman
12 January 2023 10:41:14

GFS op run up to 144h looks like could be a decent cold spell. Not going to look much past that 

Originally Posted by: ballamar 



Its another run that keeps the cold to the 22nd just about.
Could be very snowy spell especially for the west coming up. Looking quite nowcasty things could pop up last minute like December. 
 
Bishop's Stortford 85m ASL.
ballamar
12 January 2023 10:45:27

Its another run that keeps the cold to the 22nd just about.
Could be very snowy spell especially for the west coming up. Looking quite nowcasty things could pop up last minute like December. 
 

Originally Posted by: Ally Pally Snowman 


Coinciding with January is also good, time to watch DP closely. I was on the wrong side in December a couple miles can make a big difference in this setup
Nice bit of fog to add into the mix as it settle as later on which used to be precursor to her cold weather in my mind
squish
12 January 2023 12:20:46
I’ll take run number 4 from the 06z GEFS
D.E.W on Dartmoor. 300m asl
Arbroath 1320
12 January 2023 12:44:16

I’ll take run number 4 from the 06z GEFS

Originally Posted by: squish 



A good few of the ENS pointing to various forms high latitude blocking in FI. Will be interesting to see if that trend continues in subsequent runs. 
GGTTH
Snow Hoper
12 January 2023 13:14:34

I’ll take run number 4 from the 06z GEFS

Originally Posted by: squish 



Lacking the deep cold by the time it sets itself up. Lovely pattern though, as there is with many that haven't quite got the cold to our shores, but it wouldn't take long afterwards. Personally prefer the control or 11, 16, 26 (I think that's the numbers) equally, to address the balance and stop the trolls being offended, there are other milder options on the table, but I wasnt looking for those.
Going to war over religion is like killing each other to see who has the better imaginary friend.


Home : Thorndon, Suffolk.
Brian Gaze
12 January 2023 13:29:09
London snow row 17, 18, 25! 

A number of runs showing accumulations too.

https://www.theweatheroutlook.com/twoforecasts/ensemble-forecast.aspx?location=London 

UserPostedImage
Brian Gaze
Berkhamsted
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"I'm not socialist, I know that. I don't believe in sharing my money." - Gary Numan
White Meadows
12 January 2023 13:40:36
Not posted since Christmas, due to lack interest (endless gales and flooding).

Finally it’s looking like something favourable for coldies with the turn of the month presenting a chance for a Scandy Beauty to show herself unexpectedly and not what the mainstream forecasters have considered so far. 
Quantum
12 January 2023 13:52:38
P26 from the 6Z set is rather spectacular.

Interesting how we are on the brink of a rather potent cold spell that really came out of nowhere.
Twitter: @QuantumOverlord (general), @MedicaneWatch (medicane/TC stuff)
2023/2024 Snow days (approx 850hpa temp):
29/11 (-6), 30/11 (-6), 02/12 (-5), 03/12 (-5), 04/12 (-3), 16/01 (-3), 18/01 (-8), 08/02 (-5)

Total: 8 days with snow/sleet falling.

2022/2023 Snow days (approx 850hpa temp):

18/12 (-1), 06/03 (-6), 08/03 (-8), 09/03 (-6), 10/03 (-8), 11/03 (-5), 14/03 (-6)

Total: 7 days with snow/sleet falling.

2021/2022 Snow days (approx 850hpa temp):

26/11 (-5), 27/11 (-7), 28/11 (-6), 02/12 (-6), 06/01 (-5), 07/01 (-6), 06/02 (-5), 19/02 (-5), 24/02 (-7), 30/03 (-7), 31/03 (-8), 01/04 (-8)
Total: 12 days with snow/sleet falling.
White Meadows
12 January 2023 13:58:41
‘Showers turning wintry’ even in the south, and ‘notable windchill’ ..signs starting to creep into the forecast from Sunday. 
remarkable if this results in a widespread snow event at such short notice. Something dramatic in the output must have changed confidence in the last day or so, when you consider the December cold spell was being touted at least a week in advance. 
Saint Snow
12 January 2023 14:06:59

London snow row 17, 18, 25! 

A number of runs showing accumulations too.

https://www.theweatheroutlook.com/twoforecasts/ensemble-forecast.aspx?location=London 

UserPostedImage

Originally Posted by: Brian Gaze 






I like the Control for Liverpool (but the Op would do, I guess! 😎)


UserPostedImage

 

Martin
Home: St Helens (26m asl) Work: Manchester (75m asl)
A TWO addict since 14/12/01
"How can wealth persuade poverty to use its political freedom to keep wealth in power? Here lies the whole art of Conservative politics."
Aneurin Bevan
Downpour
12 January 2023 15:43:37
Interesting.

Very interesting. 

If this results in another dumpage this will go down as a very memorable writer down here, after the 6-7inch week-long beastie before Christmas. 
Chingford
London E4
147ft
ballamar
12 January 2023 16:16:08
Shame those winds get over the top of the high ideally it would have built into Greenland. But that’s a way off and potential for some interesting weather prior to that scenario
Brian Gaze
12 January 2023 16:36:42
Greenland aside it looks more and more like the Son of the Troll of Trondheim.

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Brian Gaze
Berkhamsted
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"I'm not socialist, I know that. I don't believe in sharing my money." - Gary Numan
Jiries
12 January 2023 17:00:22

Interesting.

Very interesting. 

If this results in another dumpage this will go down as a very memorable writer down here, after the 6-7inch week-long beastie before Christmas. 

Originally Posted by: Downpour 



For here from my 16th to 18C going for -2 and 3C with snowfall with Mon and Tue more chances of 64--76% which is gone higher than previous updates then a bit less on Wed.  I checked Epsom which is far south also going for snowfall over night but snow or rain risk at day time.  Seem more chance to see my birthday on 16th being white.  
Still again hat off to Moomin for predicting the mild zonal for few weeks and now we on 4th week and ending of this zonal period to something more winter alike pattern starting from Monday so that give some interest for model reports.
Ally Pally Snowman
12 January 2023 17:04:37

Greenland aside it looks more and more like the Son of the Troll of Trondheim.

UserPostedImage

Originally Posted by: Brian Gaze 



After Son of Troll of Trondheim some much needed high pressure looks the form horse atm. Where will the high pressure go? Looks like Greenland on the GFS 12z.

 
Bishop's Stortford 85m ASL.
Jiries
12 January 2023 17:08:02

Greenland aside it looks more and more like the Son of the Troll of Trondheim.

UserPostedImage

Originally Posted by: Brian Gaze 


This will be a massive blessing to see LP all over Europe and give much needed rain in the south and snow in the Alps,  They must be so relieved to this see this killer Euro HP is completely out of the way and safely over the Azores area.  If the LP move east a bit we would get hit with very cold NE winds as this chart is going around UK toward Spain but still UK trapped in the cold, snowy and unsettled zone, no way to see stupid bone dry set up like last month.
Downpour
12 January 2023 17:08:47

For here from my 16th to 18C going for -2 and 3C with snowfall with Mon and Tue more chances of 64--76% which is gone higher than previous updates then a bit less on Wed.  I checked Epsom which is far south also going for snowfall over night but snow or rain risk at day time.  Seem more chance to see my birthday on 16th being white.  
Still again hat off to Moomin for predicting the mild zonal for few weeks and now we on 4th week and ending of this zonal period to something more winter alike pattern starting from Monday so that give some interest for model reports.

Originally Posted by: Jiries 



indeed. You have to hand it to Moomin - his call was spot on. Much mocked at the time, yet spookily accurate. Changes afoot now, though, right on cue.
Chingford
London E4
147ft
Ally Pally Snowman
12 January 2023 17:12:23
Spectacular end to the GFS 12z. Are we starting to see the Strat warming effects already?
Bishop's Stortford 85m ASL.
UncleAlbert
12 January 2023 17:13:51

P26 from the 6Z set is rather spectacular.

Interesting how we are on the brink of a rather potent cold spell that really came out of nowhere.

Originally Posted by: Quantum 



It has not quite come out of nowhere. Currently some of the models indicate the lesser spotted occurrence of a polar outbreak being 'thickened up' instead of being 'watered down'.  ICON and METO not having the longer version at the moment though.
ballamar
12 January 2023 17:15:10
GFS at the end looks quite good, hopefully the high won’t build a cell over Europe
Jiries
12 January 2023 17:20:19

GFS at the end looks quite good, hopefully the high won’t build a cell over Europe

Originally Posted by: ballamar 



Surely you not alone as likely all Europeans, Alps ski resorts businesses and the Spanish really want this out so badly to get much needed rain and snow.  The charts that Brian posted look like exiting to Azores then go north to Greenland as the way of HP pointing at GL direction?
Saint Snow
12 January 2023 17:46:55
12z GFS a bit of a drier run, as the Atlantic High ridges NNE'wards to cut off the NW flow. Great FI evolution, though 🤣 with the Atlantic high linking with an Arctic high, ending with this sort of set-up:

https://www.theweatheroutlook.com/charts/gfs/12_360_mslp500.png 

 

Martin
Home: St Helens (26m asl) Work: Manchester (75m asl)
A TWO addict since 14/12/01
"How can wealth persuade poverty to use its political freedom to keep wealth in power? Here lies the whole art of Conservative politics."
Aneurin Bevan
ballamar
12 January 2023 17:59:45

indeed. You have to hand it to Moomin - his call was spot on. Much mocked at the time, yet spookily accurate. Changes afoot now, though, right on cue.

Originally Posted by: Downpour 


stop with the back slapping he wrote off January yesterday. Get a room
doctormog
12 January 2023 18:16:42

stop with the back slapping he wrote off January yesterday. Get a room

Originally Posted by: ballamar 



It’s  obvious given the comments Moomin made that they are being sarcastic. January (the entire month) was written off on a number of occasions. Normally Moomin is big enough to admit that he has called something wrong with his guesses, I suspect he will do it again.

Uncertainty was always the key point around mid-month in recent days and that can lead to setups like those currently modelled. It’s still a few days out so things could change and there is still a very large standard deviation from around the 20th (a couple of days beyond what was shown until recently).

Before then it looks chilly and for some wintry. Not as cold or probably even as long-lasting as December’s spell but possibly more unsettled.
TheJudge
12 January 2023 18:38:10
There are roughly 3 posters (most will know who they are) who seem to have an agenda. Finding the wet zonal pattern, which let's be honest is common with the climate here in the UK. The law of average will say they will be correct at some point in their predictions.

But a theme appears every single time, if cold is shown in the models output they they to find zonal, mild and wet weather, or the end to any predicted cold spell. If it is summer and high pressure and heat are possible, they try to find rain, cool wet weather (some will remember a certain poster writing off the whole of summer last year) record breaking temps were the outcome. But, the same posters will never back up their theories by providing links and images where their predictions are established from. Most people will know that if you do not back up your statements with at least some evidence, your theories may be ridiculed. 

The excuse of stating you do not know how to post images or links is weak in my opinion. If you are going to state it at least back it up, then a counter argument can be made. There is someone currently posting (relatively new) who is  a breath of fresh air on this discussion forum. Well presented output predictions, backed up with images and charts. Albeit, they may not turn out to be accurate, it is evidenced. Not whole months and season written off, without a shred of evidence. 

I visit the site probably over 5 times a day. I find it very tiresome to have what is called the model output discussion taken over by these 3 certain posters (who all seem to appear at the same time, a little strange). It becomes about the individuals rather than evidenced discussions and theories about what may or may not happen. I do not post output prediction because I am pretty poor at reading the models. 

But i do know enough to know in the UK do not ever write off seasons or months as it can often change quite quickly. What does appear to be certain it will feel more seasonal into next week, and anything may happen. But I feel my experience on here will be subdued by these certain posters with heir agenda. Sorry about the long post and rant, and being slightly off topic.

Have a great day everyone and enjoy the fun over the next week.
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