Saint Snow
04 January 2021 11:23:54

Originally Posted by: Caz 


I very nearly went for 2.3c, using my usual prediction expertise - gut feeling or lucky numbers - 23rd January is my birthday!   


I turned it around though to 3.2c and I’m not sure that was wise!  So good luck Col!  



 


Given latest model output, I think your 3.2c will be nearer the mark than 2.3c



I'm fairly content with my 3.6c at this stage.


 



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
Col
  • Col
  • Advanced Member
04 January 2021 15:57:42

Originally Posted by: Saint Snow 


 


 


Given latest model output, I think your 3.2c will be nearer the mark than 2.3c



I'm fairly content with my 3.6c at this stage.


 



We shall see, it's only day 4 and I'm not panicking yet. The second half of the month is still up for grabs and there is always the 'wildcard' of the SSW towards the end of the month to consider. As long as I can 'bank' some reasonable cold during the first half, dull & dreary days of 3/4C and temps a little below freezing would be fine to offset somewhat milder weather later.


Col
Bolton, Lancashire
160m asl
Snow videos:
http://www.youtube.com/channel/UC3QvmL4UWBmHFMKWiwYm_gg
Saint Snow
04 January 2021 19:15:56

Originally Posted by: Col 


 


We shall see, it's only day 4 and I'm not panicking yet. The second half of the month is still up for grabs and there is always the 'wildcard' of the SSW towards the end of the month to consider. As long as I can 'bank' some reasonable cold during the first half, dull & dreary days of 3/4C and temps a little below freezing would be fine to offset somewhat milder weather later.



 


If you're closer to the mark than me, I won't be complaining 



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
Caz
  • Caz
  • Advanced Member
05 January 2021 06:21:25

Originally Posted by: Saint Snow 


If you're closer to the mark than me, I won't be complaining 


Me neither, especially if it comes with white stuff!  


Market Warsop, North Nottinghamshire.
Join the fun and banter of the monthly CET competition.
ARTzeman
05 January 2021 10:58:41

Met Office Hadley        1.5c      Anomaly      -1.9c Provisional to 4th


Metcheck                      1.76c   Anomaly      -2.40c


Netweather                   2.38c   Anomaly      -1.83c


Peasedown St John     1.8c     Anomaly      -3.1c       






Some people walk in the rain.
Others just get wet.
I Just Blow my horn or trumpet
ARTzeman
06 January 2021 10:51:52

Met Office Hadley        1.7c       Anomaly     -1.8c Provisional to 5th


Metcheck                     1.79c     Anomaly     -2.36c


Netweather                  2.45c     Anomaly     -1.76c


Peasedaown St John    1.9c      Anomaly     -3.0c.     


 Of 8 locals to PSJ   1.32c. 






Some people walk in the rain.
Others just get wet.
I Just Blow my horn or trumpet
Global Warming
06 January 2021 21:29:53

Here is the latest CET tracker.


Notwithstanding comments I have seen elsewhere on the forum it is absolutely the case that we are experiencing a very significant cold spell. The first 10 days of January are expected to see a CET of 1.13C which is 3.2C below average. That is very significant.


The final 4 days of December saw a CET of 0.4C which is 4.2C below average. 


The CET for the 14 days from 28 December to 10 January will be around 0.9C which is 3.6C below average.


From Monday the CET starts to turn much milder and by 20 January I expect the CET (on current output) to rise to 3.88C. Still below average but not by that much. If (and it is a big if) the milder weather continues to the end of the month we could even end up slightly above average in the mid 4s.


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Chart 1


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Chart 2

ARTzeman
07 January 2021 11:13:46

Met Office Hadley        1.7c      Anomaly      -1.8c provisional to 6th


Metcheck                     1.55c    Anomaly       -2.66c


Netweather                  2.35c    Anomaly       -1.86c


Peasedown St John     1.4c      Anomaly       -3.5c.         






Some people walk in the rain.
Others just get wet.
I Just Blow my horn or trumpet
Stormchaser
07 January 2021 20:30:11

Freezing mist and fog kept quite a few spots below zero today. I recorded a max of -0.7°C which is the lowest here since 2nd March 2018!


It was also a very cold night, could be an impressively low CET reading on the cards.


Gradually easing toward average in the coming days, then probably on the mild side for at least a time next week. Keep seeing runs that reintroduce chilly high pressure ridges, mind.


I must admit, I was a bit caught out by the spread of estimates this month - I was expecting to see more in the 1s and 2s!


My logic this month was, if it's ever going to be a sub-2°C, it's when you have a cold pattern in place coupled with cold signals for the mid-range and the possibility of cold(er) weather afterward associated with SSW response.



Now of course, those mid-range cold signals have been replaced with either mixed or mild depending on the model and run viewed. There was little sign of this at the end of December. Typical stuff.


I'm not without hope, though. The sudden stratospheric warming should continue to influence weather patterns for the remainder of the month and there are signs that tropical convection may not stay aligned with the La Nina base state, forcing higher pressure over Iberia, for more than a week.


All told, I'd not be surprised to see a 'banana' shape to this month's CET come the end of it.


If you have any problems or queries relating to TWO you can Email [email protected]

https://twitter.com/peacockreports 
2023's Homeland Extremes:
T-Max: 30.2°C 9th Sep (...!) | T-Min: -7.1°C 22nd & 23rd Jan | Wettest Day: 25.9mm 2nd Nov | Ice Days: 1 (2nd Dec -1.3°C in freezing fog)
Keep Calm and Forecast On
ARTzeman
08 January 2021 10:52:36

Met Office Hadley       1.3c      Anomaly     -2.2c Provisional to 7th


Metcheck                     1.33c   Anomaly     -2.82c


Netweather                  1.96c   Anomaly     -2.25c


Peasedown St John    1.4c      Anomaly     -3.5c. 






Some people walk in the rain.
Others just get wet.
I Just Blow my horn or trumpet
ARTzeman
09 January 2021 10:46:21

Met Office Hadley         1.0c        Anomaly      -2.5c Provisional to 8th


Metcheck                       1.22c     Anomaly      -2.93c


Netweather                    1.81c     Anomaly      -2.4c


Peasedown  St John      1.4c      Anomaly       3.5c.   






Some people walk in the rain.
Others just get wet.
I Just Blow my horn or trumpet
ARTzeman
10 January 2021 10:56:21

Met Office Hadley       1.0c       Anomaliy     -2.5c provisional to 9th


Metcheck                    1.11c     Anomaly      -3.04c


Netweather                 1.65c     Anomaly      -2.56c


Peasedown St John    1.3c      Anomaly       -3.6c.      


 






Some people walk in the rain.
Others just get wet.
I Just Blow my horn or trumpet
Global Warming
10 January 2021 16:41:01

Latest CET tracker shows the next four days should be somewhat less cold but by Friday things turn cooler again. Beyond that there is a lot of uncertainty but there are increasing signs of colder weather returning. 


At present the CET is predicted to be 3.22C by 24 January. However, I fully expect it could be a lot lower than that. 


The first 10 days of January will see a CET of just 0.9C which is 3.4C below average.


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Chart 1


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Chart 2

redmoons
10 January 2021 16:45:23

Originally Posted by: Global Warming 


In fact the first 10 days of 2021 is the coldest first 10 days of the year since 1893.



Wow that is amazing 


Andrew,
Watford
ASL 35m
http://weather.andrewlalchan.co.uk 





Whether Idle
10 January 2021 17:12:13

Originally Posted by: redmoons 


 


Wow that is amazing 



What is more amazing is that Ive managed an air frost and I saw few small flakes of snow a couple of days ago!


Dover, 5m asl. Half a mile from the south coast.
Stormchaser
10 January 2021 18:28:09

Model madness continues but there's an underlying increase in support for very cold air to make its way in from the northeast within the 3rd week of the month, likely as part of a cyclonic setup (i.e. unstable i.e. high snow potential).


The GFS 12z was one of the colder outcomes, giving me a CET estimate to 26th in the mid-1s °C.


Yet there have been a fair few much milder outcomes appearing too, which while a dwindling cluster in the ensembles, can't be ignored. Those lift my CET estimate right up into the 3s or even 4s °C!


 


Funny really - coldest opening 10 days in the CET series in 128 years, while down here it's been nothing of much note (overall) and about half the days reached close to 5°C which is what I'd call 'very chilly' rather than cold.


No snow here either - but it did deliver a rare subzero maximum and one of the only ones I can recall with no snow cover. So it's had its moments! 


If you have any problems or queries relating to TWO you can Email [email protected]

https://twitter.com/peacockreports 
2023's Homeland Extremes:
T-Max: 30.2°C 9th Sep (...!) | T-Min: -7.1°C 22nd & 23rd Jan | Wettest Day: 25.9mm 2nd Nov | Ice Days: 1 (2nd Dec -1.3°C in freezing fog)
Keep Calm and Forecast On
Spring Sun Winter Dread
10 January 2021 19:39:32
GW I must say am a little surprised that the CET was as high as that for the first ten days of 2010. I remember it as being a solidly sub zero CET period from my own recollections of the weather at the time/following the late Philip Eden's daily CET updates which he used to do back then.
Likewise 1997 and 2009 had bitter starts to January with several ice days at least IMBY. There must have been some mild days mixed in that I am forgetting!
Ally Pally Snowman
10 January 2021 19:57:39

Coldest since 1893. That's unbelievable,  and barely a flake of snow for over half the country. 


Bishop's Stortford 85m ASL.
Bolty
10 January 2021 20:46:13

Yes, I am also very surprised at those statistics. My memories of early January 2010 was that they were brutally cold with bitterly cold nights and sub-zero days, with that snowmaggedon event on 4-5 January. This year has seen overnight frosts, but most of the days have just about creeped above freezing. I recognise, I'm talking from a local perspective, but surely it was similar for most places.


Scott
Blackrod, Lancashire (4 miles south of Chorley) at 156m asl.
My weather station 
lanky
10 January 2021 21:17:03

Originally Posted by: Bolty 


Yes, I am also very surprised at those statistics. My memories of early January 2010 was that they were brutally cold with bitterly cold nights and sub-zero days, with that snowmaggedon event on 4-5 January. This year has seen overnight frosts, but most of the days have just about creeped above freezing. I recognise, I'm talking from a local perspective, but surely it was similar for most places.



This was commented on in the "worst cold spell" thread below


It looks very much that the table compared mean temperatures in 2020 with the maximum temperatures for other years


1963 for instance should say -0.57


Martin
Richmond, Surrey
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