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Patrick01
30 November 2015 22:44:33

http://www.wetterzentrale.de/pics/Rtavn15018.gif


 


Pretty worrying for NW Wales by the end of the weekend if this much rain falls I'd have thought 

Gooner
30 November 2015 23:02:31

Very different outcome from the pub run lol


Remember anything after T120 is really Just For Fun



Marcus
Banbury
North Oxfordshire
378 feet A S L


moomin75
30 November 2015 23:06:13


Very different outcome from the pub run lol


Originally Posted by: Gooner 

Indeed. Back to reality Marcus. tongue-out


Witney, Oxfordshire
100m ASL
Polar Low
30 November 2015 23:06:53

Yes Sc but id always side with Steve a great poster and his right a forum has to be fun sometimes ones wisdom and experience over the years like Steves is worth much more than a thousands words only for it to go 8ITS UP ANYWAY.


 


Great stuff over on t'other forum where Steve Murr is telling it how is with regards to the memoirs of teleconnections that appear to bore the socks of most people. Back to the models and GW perfectly illustrates what we can expect from the current output if it verifies, more runs needed ( as ever ) but we need a more favourable upstream pattern for any sustainable HLB.

Originally Posted by: Solar Cycles 

Gooner
30 November 2015 23:16:24


Indeed. Back to reality Marcus. tongue-out


Originally Posted by: moomin75 


Massive outlier though K , as you'd expect


Remember anything after T120 is really Just For Fun



Marcus
Banbury
North Oxfordshire
378 feet A S L


Polar Low
30 November 2015 23:16:27

Indeed Patrick


Modele GFS - Carte prévisions


 



http://www.wetterzentrale.de/pics/Rtavn15018.gif


 


Pretty worrying for NW Wales by the end of the weekend if this much rain falls I'd have thought 


Originally Posted by: Patrick01 

Phil G
30 November 2015 23:33:27
As we have seen on a thread created by Kev, on some occasions HP to the south can be quickly displaced by HP from the NE.
GFS has been hinting of northerly high pressure to become dominant, one way or the other.
This evening's suggestion could lead to that scenario at the top with a strong area of HP pushing down from the North East.
Awaiting more runs with quiet optimism.

http://www.wetterzentrale.de/pics/Rtavn3841.gif 


nsrobins
01 December 2015 07:44:36
The NWP continues to favour a westerly regime with plenty of rain - too much in places - and wind and some snow at times on Northern hills.
Of note on the wildly inaccurate and barely worth mentioning 300hr onwards range on GFS 00hrs is a super-bomb on the 16th Dec. It'll not be there later but might be an indication of a more southerly tracking jet being forecast as per MetO extended.
Neil
Fareham, Hampshire 28m ASL (near estuary)
Stormchaser, Member TORRO
Shropshire
01 December 2015 08:16:41

As we have seen on a thread created by Kev, on some occasions HP to the south can be quickly displaced by HP from the NE.
GFS has been hinting of northerly high pressure to become dominant, one way or the other.
This evening's suggestion could lead to that scenario at the top with a strong area of HP pushing down from the North East.
Awaiting more runs with quiet optimism.

http://www.wetterzentrale.de/pics/Rtavn3841.gif


Originally Posted by: Phil G 


 


Have to say I'm not, looks pretty windy mild and wet for the forseeable with maybe 1 or 2 dry days in between systems.


From December 27th 2020, zonality will be banned from mixing with the UK. We appreciate that this may come as a shock to younger people and old Uncle Barty. This ban will last for a minimum of ten days.
Maunder Minimum
01 December 2015 08:23:35


 


 


Have to say I'm not, looks pretty windy mild and wet for the forseeable with maybe 1 or 2 dry days in between systems.


Originally Posted by: Shropshire 


If there is no room for optimism, what is left?


Seeing some promising scenarios in FI keeps the interest going at least.


New world order coming.
roger63
01 December 2015 08:30:40


 


If there is no room for optimism, what is left?


Seeing some promising scenarios in FI keeps the interest going at least.


Originally Posted by: Maunder Minimum 


ECM seems to have picked up the quieter spell for the south with HP close by from 192h -240h.


0H GEFS Ens have 50 % cold members out at 384h mostly north westerlies but with the odd Greenland HP eg Ens 13


http://www.meteociel.fr/modeles/gefs_cartes.php?code=13&ech=384&mode=0&carte=0


 

Ally Pally Snowman
01 December 2015 08:40:23


 


ECM seems to have picked up the quieter spell for the south with HP close by from 192h -240h.


0H GEFS Ens have 50 % cold members out at 384h mostly north westerlies but with the odd Greenland HP eg Ens 13


http://www.meteociel.fr/modeles/gefs_cartes.php?code=13&ech=384&mode=0&carte=0


 


Originally Posted by: roger63 


 


Civil War seems to have broken out over on the other side and its only the first day of winter!


Meanwhile well done Roger for the chart of the day. There is still a chance of a cold spell around mid month but odds are against this morning.


 


Bishop's Stortford 85m ASL.
Solar Cycles
01 December 2015 09:02:07


 


 


Civil War seems to have broken out over on the other side and its only the first day of winter!


Meanwhile well done Roger for the chart of the day. There is still a chance of a cold spell around mid month but odds are against this morning.


 


Originally Posted by: Ally Pally Snowman 

😂😂 Its closed at the moment due to an upgrade.


Not much to get excited about with this mornings models, a drier 2-3 day slot may well come to fruition around mid month more so for southern areas and the jet looks like tracking southwards, which is of more interest if it's colder weather you're  looking for.

Russwirral
01 December 2015 10:38:22
hmm...odd

http://max.nwstatic.co.uk/gfsimages/gfs.20151201/06/207/h850t850eu.png 

This chart is starting to look like the charts did last week with that easterly again...
idj20
01 December 2015 11:20:56

hmm...odd

http://max.nwstatic.co.uk/gfsimages/gfs.20151201/06/207/h850t850eu.png

This chart is starting to look like the charts did last week with that easterly again...

Originally Posted by: Russwirral 



 Struggling to see any kind of easterly set up out of that one. All I'm seeing is a westerly flow being interrupted by a transient ridge of high pressure (which wouldn't be a bad thing as that would result in useful outdoors type conditions for a day or two over the UK if that came off).

Otherwise, in general, it looks like it's all default tropical maritime set up for as far as the eyes can see, with perhaps the fleeting occasional blink-and-you'd-miss-it polar maritime intrusions to make it wintry over Northern parts from time to time. In other words, same old same old as expected of our mid-latitude climate. 


Folkestone Harbour. 
Russwirral
01 December 2015 11:53:12




 Struggling to see any kind of easterly set up out of that one. All I'm seeing is a westerly flow being interrupted by a transient ridge of high pressure (which wouldn't be a bad thing as that would result in useful outdoors type conditions for a day or two over the UK if that came off).

Otherwise, in general, it looks like it's all default tropical maritime set up for as far as the eyes can see, with perhaps the fleeting occasional blink-and-you'd-miss-it polar maritime intrusions to make it wintry over Northern parts from time to time. In other words, same old same old as expected of our mid-latitude climate. 


Originally Posted by: idj20 


 


I posted in haste..  I meant the cold into eastern europe reminded me of what the charts were pointing to a week ago, with a small ridge of HP moving over the north of the UK - forcing the colder Europe air over the UK.... on this run - that ended up being shunted off east into Russia, rather west towards us


 


My point was - that kind of build up hadnt been present on the GFS for a few days now.  


Stormchaser
01 December 2015 12:08:10

No chart available for the selected hour. Many charts start at 3 hours ahead, so if you have 0 hours selected try stepping forward or selecting a later hour. No chart available for the selected hour. Many charts start at 3 hours ahead, so if you have 0 hours selected try stepping forward or selecting a later hour.


 


The boundary between the exceptionally 'warm' and seasonably chilly air on Thursday has been trending a little south over the past 48 hours, the result being that the heaviest rain looks to start off across southern parts of Wales and extending NE from there, but drift down across southern England over the following 9 hours. This limits the extremity of the rain totals for the former region, but locations within still look to be hit hardest. Meanwhile the far south may see temps as high as 15*C for a time ahead of the rain.


The frontal boundary may stall and develop a second wave across the far south on Friday, though the rain doesn't look anywhere near as heavy as it does wrt the first wave.


 


Further ahead in time, Saturday continues to look rough for the northern half of the country in an unwelcome repeat of last weekend. Soon after, the south will need to watch out for a shortwave low coming in from the WSW which looks like it may peak in intensity close to or over the middle of the UK, the strongest winds affecting the southern half.


It looked nasty on the ECM 00z op run and the GFS 06z op run has managed to mimic that outcome closely enough to give some sense of what wind gusts are possible. Below is early Saturday on the left, and the (noon Sunday) peak of the shortwave low's impacts on the right:


No chart available for the selected hour. Many charts start at 3 hours ahead, so if you have 0 hours selected try stepping forward or selecting a later hour. No chart available for the selected hour. Many charts start at 3 hours ahead, so if you have 0 hours selected try stepping forward or selecting a later hour.


 


Plenty of rain around too, hitting the west hardest - though I suspect GFS is tapering off the totals too quickly when looking east from there. We can also see the area hit hardest by Thursday's rain:


No chart available for the selected hour. Many charts start at 3 hours ahead, so if you have 0 hours selected try stepping forward or selecting a later hour.


Bear in mind that's the 5 day total so doesn't include Sunday's event for the south, for example. 


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Keep Calm and Forecast On
idj20
01 December 2015 12:20:46


 


 


I posted in haste..  I meant the cold into eastern europe reminded me of what the charts were pointing to a week ago, with a small ridge of HP moving over the north of the UK - forcing the colder Europe air over the UK.... on this run - that ended up being shunted off east into Russia, rather west towards us


 


My point was - that kind of build up hadnt been present on the GFS for a few days now.  


Originally Posted by: Russwirral 


 

Until we get to that, it's looking set to be on the rough side over the weekend with more gales. Of course, that's me getting ahead of myself again.


Folkestone Harbour. 
JACKO4EVER
01 December 2015 12:29:29


 


 


Have to say I'm not, looks pretty windy mild and wet for the forseeable with maybe 1 or 2 dry days in between systems.


Originally Posted by: Shropshire 

 


it does look pretty mild at times- I could easily see some places recording 14 or 15c should any brightness occur. 


Sadly it also seems to be quite wet at times and flooding could be an issue for some 

nsrobins
01 December 2015 13:34:21
http://www.wetterzentrale.de/pics/MT8_London_ens.png 

Is 'scatter-crud' a phrase? 🙂
Neil
Fareham, Hampshire 28m ASL (near estuary)
Stormchaser, Member TORRO
Saint Snow
01 December 2015 13:36:01



Is 'scatter-crud' a phrase? :)

Originally Posted by: nsrobins 


 


'Tis now!




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
DEW
  • DEW
  • Advanced Member
01 December 2015 14:00:26

 18 flood warnings out, the majority for mid and north Wales http://www.shoothill.com/floodmap/ - and if the map below verifies they'll be upped to severe flood warning. Don't expect to go for a casual drive along the A483 Newtown - Oswestry this weekend!



Indeed Patrick


Modele GFS - Carte prévisions


 


 


Originally Posted by: Polar Low 


War does not determine who is right, only who is left - Bertrand Russell

Chichester 12m asl
DEW
  • DEW
  • Advanced Member
01 December 2015 14:05:11


 


 


I posted in haste..  I meant the cold into eastern europe reminded me of what the charts were pointing to a week ago, with a small ridge of HP moving over the north of the UK - forcing the colder Europe air over the UK.... on this run - that ended up being shunted off east into Russia, rather west towards us


 


My point was - that kind of build up hadnt been present on the GFS for a few days now.  


Originally Posted by: Russwirral 


Some output shows any cold air staying a long way off


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


and even if things switched round and we got an easterly, it wouldn't be that cold - scroll down to see the anomalies which make Russia look absolutely toasty!


War does not determine who is right, only who is left - Bertrand Russell

Chichester 12m asl
Tom Oxon
01 December 2015 15:12:34

Looking further afield beyond the weekend, it does look as though we are building towards a peak in Atlantic activity around the early to mid part of next week with a peak +NAO and crashing heights around Iceland:


http://www.cpc.ncep.noaa.gov/products/precip/CWlink/pna/nao.sprd2.gif


ECM says it looks something like this:

http://mp1.met.psu.edu/~fxg1/ECMWF_0z/test8.gif

It would be my call that we will probably see some of the fiercest storms of the season during this period next week.

Further beyond that, there is a general for the Atlantic quietening down towards the mid part of the month. Nothing in the -NAO territory though.


S Warwickshire countryside, c.375ft asl.

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