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Brendon Hills Bandit
25 November 2015 00:49:29
Keep on getting this feeling that, just perhaps, this won't be a "textbook" El Nino winter.
220m asl, edge of Brendon Hills
Whether Idle
25 November 2015 05:58:38

GFS chooses to cook up a storm this morning in the opening days of December.  A mobile, windy, westerly run.



Dover, 5m asl. Half a mile from the south coast.
Rob K
25 November 2015 07:43:57
Now that's what I call a Euro high at 360 hours on the 00Z GFS! By the end it links right up with the Greenland high too. Rather implausible!
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
Solar Cycles
25 November 2015 08:22:02


 


By whom. It's verification statistics are always ahead of GFS at every time point. Ive been doing these verification stats for a year now and on only a couple of occasions has ECM been superceded by UKMO and once by GFS at a day 5 point in the summer. The most notable thing to be taken from these for me is how much more reliable ECM is relative to GFS the further away from the present you go. Here's todays crop for example.


http://www.emc.ncep.noaa.gov/gmb/STATS_vsdb/allmodel/daily/cor/cor_day3_PMSL_MSL_G2NHX.png


http://www.emc.ncep.noaa.gov/gmb/STATS_vsdb/allmodel/daily/cor/cor_day5_PMSL_MSL_G2NHX.png


http://www.emc.ncep.noaa.gov/gmb/STATS_vsdb/allmodel/daily/cor/cor_day8_PMSL_MSL_G2NHX.png


http://www.emc.ncep.noaa.gov/gmb/STATS_vsdb/allmodel/daily/cor/cor_day10_PMSL_MSL_G2NHX.png


Originally Posted by: GIBBY 

Regardless Gibby, since its last update it always over amplifies the upstream pattern. 

nsrobins
25 November 2015 08:25:37
10 day vetification stats speak for themselves. The solutions at +240 on offer should be taken with less confidence than normal given the spread across the ENS. In my experience the models are toying with a major pattern change for early December so watch how things evolve but for your own sanity do not over analyse each operational run.
Neil
Fareham, Hampshire 28m ASL (near estuary)
Stormchaser, Member TORRO
GIBBY
25 November 2015 09:11:10


Regardless Gibby, since its last update it always over amplifies the upstream pattern. 


Originally Posted by: Solar Cycles 


Im sorry but I don't follow that chain of thought. Surely if it over amplified the pattern it would reflect in these stats or am I missing something.


Martin G
Kilmersdon Radstock Bath Somerset



Look up my New Facebook Weather Page  for all the latest up to the minute weather stories as they happen
David M Porter
25 November 2015 09:27:49

10 day vetification stats speak for themselves. The solutions at +240 on offer should be taken with less confidence than normal given the spread across the ENS. In my experience the models are toying with a major pattern change for early December so watch how things evolve but for your own sanity do not over analyse each operational run.

Originally Posted by: nsrobins 


Very good advice, Neil.


The end of the GFS 00z this morning looks potentially very interesting, but as it is so far off in terms of time we shouldn't put much if any faith in that at the moment. That said, if there is to be a change at any point away from the zonal pattern we have seen this month, it will have to start from somewhere.


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
Russwirral
25 November 2015 10:47:24
6z FI developing a Scandi HP in a similar vein to the previous runs from yesterday and over the past few days (apart from todays 0z which developed a Euro HP )
moomin75
25 November 2015 10:50:06



Hmmmmm where did that Easterly come from lol


Highly unlikely to end up like this but shows its rather foolish to say its Zonal until 2016........................eh Moomin


Originally Posted by: Gooner 

In a word. No Marcus. Cherry picking a 384 chart doesn't change my view that it will be a mild unsettled December. Maybe not completely zonal and a few dry cooler days in there. As I say it'll all change from January when I'm the other side of the world. 


Witney, Oxfordshire
100m ASL
Chunky Pea
25 November 2015 12:10:26
No real change on the EC ens at day 15. Still going for a general rise in pressure over W. Europe but with heights remaining low to the NW. How this will transpire in reality though remains the big question.
Current Conditions
https://t.ly/MEYqg 


"You don't have to know anything to have an opinion"
--Roger P, 12/Oct/2022
bledur
25 November 2015 13:53:23

Weatherweb / Chinese ideas for Christmas.Mellow


The Beijing Climate Centre 40-day forecast is certainly in line with our thinking for late December.

"Our ideas of turning cooler from around 21st onwards (or perhaps a little earlier) are gathering a following from the various climate forecasts.

We still don;t think it's a major hit of wintry weather, but there could be snow showers in Scotland and perhaps northern England and Northern Ireland too, a few making it to lower levels. <br.
A ridge build over the northeastern Statesand Canada strengthening the trough in the Atlantic. Big question is where will the trough be? West of us it's milder, further east and thing are cooler"

Rob K
25 November 2015 15:03:20
http://www.wetterzentrale.de/pics/MT8_London_ens.png 
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
David M Porter
25 November 2015 15:04:46


In a word. No Marcus. Cherry picking a 384 chart doesn't change my view that it will be a mild unsettled December. Maybe not completely zonal and a few dry cooler days in there. As I say it'll all change from January when I'm the other side of the world. 


Originally Posted by: moomin75 


IMO, predicting January's weather just now is even more futile than trying to say with any certainty what December will be like as a whole.


Best not to go making any wild predictions at this time either way. By taking that approach, no-one can shoot you down in flames afterwards in the event of your predictions not going according to plan. Why not just wait and see?


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
moomin75
25 November 2015 16:26:26


 


IMO, predicting January's weather just now is even more futile than trying to say with any certainty what December will be like as a whole.


Best not to go making any wild predictions at this time either way. By taking that approach, no-one can shoot you down in flames afterwards in the event of your predictions not going according to plan. Why not just wait and see?


Originally Posted by: David M Porter 

Was tongue in cheek David because I have been outside the UK in Australia for the last FOUR major snow events....so it's every bit as reliable as any LRF. 😊


Witney, Oxfordshire
100m ASL
Russwirral
David M Porter
25 November 2015 17:15:22


Was tongue in cheek David because I have been outside the UK in Australia for the last FOUR major snow events....so it's every bit as reliable as any LRF. 😊


Originally Posted by: moomin75 


Maybe, but that sequence of major wintry spells coinciding with you being out of the UK can (and likely will one day) come to an end y'know.


GFS teasing us again with a Scandi High in deep FI. Is it leading us up the garden path, or could it be picking up a few subtle hints of a change later in December? That is the $64million question just now.


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
briggsy6
25 November 2015 17:34:13

it may just be a coincidence or my mind playing tricks but we  do often seem to get a pattern change towards much colder conditions around Boxing Day.


Location: Uxbridge
roger63
25 November 2015 17:55:17


In a word. No Marcus. Cherry picking a 384 chart doesn't change my view that it will be a mild unsettled December. Maybe not completely zonal and a few dry cooler days in there. As I say it'll all change from January when I'm the other side of the world. 


Originally Posted by: moomin75 


The 12h GEFS Ens have cold anticyclonic with strong Scandi HP on only 2 of the 20 ENS.Much as I would like to see a cold December out break evidence at present is thin.Await with interest the METO 3  month  forecast which should be out this week.

nsrobins
25 November 2015 18:12:27


 


The 12h GEFS Ens have cold anticyclonic with strong Scandi HP on only 2 of the 20 ENS.Much as I would like to see a cold December out break evidence at present is thin.Await with interest the METO 3  month  forecast which should be out this week.


Originally Posted by: roger63 


They do but six or so have significant HLB to the E or NE from +300 this evening.
Not buying into it in any way mind, but it might be more than the usual noise.


Neil
Fareham, Hampshire 28m ASL (near estuary)
Stormchaser, Member TORRO
Whether Idle
25 November 2015 18:52:01


 


The 12h GEFS Ens have cold anticyclonic with strong Scandi HP on only 2 of the 20 ENS.Much as I would like to see a cold December out break evidence at present is thin.Await with interest the METO 3  month  forecast which should be out this week.


Originally Posted by: roger63 


Your advice is sound  Roger. 


Some are reading too much in to the usual background noise in the ensembles.


The Met O are pretty confident of an average -mild and mobile December.


Dover, 5m asl. Half a mile from the south coast.
Solar Cycles
25 November 2015 19:01:26


 


Im sorry but I don't follow that chain of thought. Surely if it over amplified the pattern it would reflect in these stats or am I missing something.


Originally Posted by: GIBBY 

I'm not arguing over the stats Gibby, especially with your good self


 


However since its last update ( to my beady eye ) it does over amplify the upstream pattern in a way it never use to.

Solar Cycles
25 November 2015 19:04:01


 


Your advice is sound  Roger. 


Some are reading too much in to the usual background noise in the ensembles.


The Met O are pretty confident of an average -mild and mobile December.


Originally Posted by: Whether Idle 

But we've all been here long enough to know that the MetO medium range forecast can and do change often, I'm not implying that they will but we shouldn't place all our eggs in one basket, just yet.

Whether Idle
25 November 2015 19:12:30


I'm not arguing over the stats Gibby, especially with your good self


 


However since its last update ( to my beady eye ) it does over amplify the upstream pattern in a way it never use to.


Originally Posted by: Solar Cycles 


But I would hope that you would accept the facts, and that if it has the best verification stats then it can be trusted just that little bit more than the other models? 


Dover, 5m asl. Half a mile from the south coast.
Solar Cycles
25 November 2015 19:16:53


 


But I would hope that you would accept the facts, and that if it has the best verification stats then it can be trusted just that little bit more than the other models? 


Originally Posted by: Whether Idle 

It does but what I say holds true, look at the next time there is a cold plunge forecasted ( if we're lucky ) and how far west the ECM backs this up, that is just one instance since it was updated. This was never an issue prior to the update.

Hippydave
25 November 2015 19:25:16

Nothing to freeze the cockles of a coldies heart in the anywhere remotely reliable timeframe I see, but still some hints of a possible interruption to the zonal flow popping up. Given the amount of ridges that GFS has been throwing up over Scandi it's not a surprise to see it toying with one of these helping to develop a decent HP block.


I also don't actually mind the ECM run because it does develop a shallow HP cell North West of Scandi:-



Coupled with the hints GFS has been dropping and at least there's a few signs that December won't be all zonal imo 


In the more nailed in timeframe it's wet at times, wintry at times for the Northern hills and occasionally pretty windy too. Given the mobile flow night time temps are unlikely to be that low so whilst day time temps don't look too mild, overall it looks like an above average CET period coming up.


Home: Tunbridge Wells
Work: Tonbridge

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