The Weather Outlook

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Bertwhistle
24 November 2018 22:13:49

Personally I'm surprised GFS is modelling an Atlantic takeover so easily around Tuesday after cold air has started to stagnate over Scaninavia, N Sea etc. Is it really going to be that easy to budge at the surface, despite the energy from the southwest?


Bertie, Itchen Valley.

Retire while you can still press the 'retire now' button.

nsrobins
25 November 2018 05:23:41
Yep. No point in trying to dress this one up folks - the Atlantic is back with a vengeance next week for a while at least. Some risk of gales at times especially in the North.
Neil

Fareham, Hampshire 28m ASL (near estuary)

Stormchaser, Member TORRO

Retron
25 November 2018 05:44:52

Yep. No point in trying to dress this one up folks - the Atlantic is back with a vengeance next week for a while at least. Some risk of gales at times especially in the North.

Originally Posted by: nsrobins 

Not far off gales down here, either. Awful weather on the way by the looks of it!

It's not hopeless for winter fans, though. This morning's GEFS shows two distinct clusters in early December, a "mild wet and windy" cluster and a much colder, quieter cluster. It's this latter cluster which the Met Office seems to be favouring in their mid-range forecasts.

 


Leysdown, north Kent
White Meadows
25 November 2018 07:41:18

 

One reason to care about the 850s is that clouds producing precipitation are likely to be at or above that height, which for the "standard atmosphere" with a surface pressure of 1013 corresponds to about 4,500 ft (if the surface pressure is lower than that then the 850 level will also be lower). So if the 850s are above zero you are unlikely to get snow at the surface. Of course if it's "cold frosty weather" that you want, then that doesn't enter into it, but I suspect that for most of us it's snow that we want above all.

Originally Posted by: jhall 

unless you like freezing rain of course.

Brian Gaze
25 November 2018 08:01:56

Oh dear.


Brian Gaze

Berkhamsted

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Gusty
25 November 2018 08:02:09

 

Not far off gales down here, either. Awful weather on the way by the looks of it!

It's not hopeless for winter fans, though. This morning's GEFS shows two distinct clusters in early December, a "mild wet and windy" cluster and a much colder, quieter cluster. It's this latter cluster which the Met Office seems to be favouring in their mid-range forecasts.

 

Originally Posted by: Retron 

14s and 15s possibly on offer a week today. At least it will be mild. 


Steve - Folkestone, Kent

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ballamar
25 November 2018 08:03:29
Crumb of comfort on the op runs is the semi permanent arctic high on ECM, whether it moves this way
roadrunnerajn
25 November 2018 08:26:38
With high pressure to the south and too much breeze to stagnate the air at ground level I'd say 14/15c was a distinct possibility later next weekend.

Unfortunately the GFS is painting a wonderful picture if this was summer but not really what you want for early December....


Germoe, part of the breakaway Celtic Republic. 80m asl
Ally Pally Snowman
25 November 2018 08:57:16

Oh dear.

Originally Posted by: Brian Gaze 

 

Shocking, wouldn't surprise me to see a mild or very mild December now. 

 

 


Bishop's Stortford 85m ASL.
Whether Idle
25 November 2018 09:00:37

With high pressure to the south and too much breeze to stagnate the air at ground level I'd say 14/15c was a distinct possibility later next weekend.
Unfortunately the GFS is painting a wonderful picture if this was summer but not really what you want for early December....

Originally Posted by: roadrunnerajn 

Look on the positive side.  Giving less money to corrupt capitalist energy companies.  That is brilliant in of itself.


Dover, 5m asl. Half a mile from the south coast.
moomin75
25 November 2018 09:00:37

Oh dear.

Originally Posted by: Brian Gaze 

Yup these ensembles are not looking good at all. At risk of being called a pessimist you can probably write off the first week to ten days of December.

However, we can and do see Ensemble flips and it's way too early to write off the whole month just yet. A mobile westerly pattern seems set in stone for the foreseeable though.


Witney, Oxfordshire

100m ASL

doctormog
25 November 2018 09:05:20

Yup these ensembles are not looking good at all. At risk of being called a pessimist you can probably write off the first week to ten days of December.

However, we can and do see Ensemble flips and it's way too early to write off the whole month just yet. A mobile westerly pattern seems set in stone for the foreseeable though.

Originally Posted by: moomin75 

Pessimist 


Tom Oxon
25 November 2018 09:06:02

Yup these ensembles are not looking good at all. At risk of being called a pessimist you can probably write off the first week to ten days of December.

However, we can and do see Ensemble flips and it's way too early to write off the whole month just yet. A mobile westerly pattern seems set in stone for the foreseeable though.

Originally Posted by: moomin75 

We could really do with the rain though, so no complaints from me.


S Warwickshire countryside, c.375ft asl.
Solar Cycles
25 November 2018 09:22:20

Yup these ensembles are not looking good at all. At risk of being called a pessimist you can probably write off the first week to ten days of December.

However, we can and do see Ensemble flips and it's way too early to write off the whole month just yet. A mobile westerly pattern seems set in stone for the foreseeable though.

Originally Posted by: moomin75 

I said as much the other day moomin, the trend is for a far more mobile Atlantic set up then we’ve seen for some time how long for remains in doubt despite encouraging whispers on the MetO extended forecasts. 

As long as that semi permanent high over Central Europe remains in situ then any deep cold will remain a fantasy, the only saving grace is that the overall NH profile is primed for HLB down the line. Now will we see wave 2 activity continuing to stretch the PV and allow blocking to set up in a more favourable position is the question, but I’m still not convinced we'll see another SSW event this winter.

doctormog
25 November 2018 09:28:44
To be perfectly honest, an Atlantic dominated spell of weather would be a marked improvement to the garbage of the past ten days or so. At least we will actually get some “weather” or even see the sun here. “Normal autumn” will do just fine, there’s lots of time for winter. This endless grey and daily semi-darkness is awful (essentially zero hours of sunshine since the 12th of November).
Hippydave
25 November 2018 09:29:09

Not sure much has changed from yesterday looking through this morning's runs - just a few more pessimistic comments on the worst (for coldies) bits

Short term it's a mix of cool/chilly and milder weather, with the milder weather becoming more dominant as the HP bleeds away and opens us up to a big push of warmer air from the Atlantic.

Wednesday still looking windy although the core of the strong winds runs west past Ireland and NW Scotland on this run so not as bad as yesterday. Plenty of time for things to change re where the strongest winds are though

ECM is still keen on a big Artic high in it's FI section - the PV on it's Op run is nicely split and the high starts to spread it's influence a bit closer to our shores. We'd need a fair few things to go right for it to bring cold our way but it's a promising set up.

The GFS ens are pretty confident of a generally unsettled pattern to around the 3rd of Dec, at which point the scatter begins. As Darren mentioned there's a cluster of members that want HP to build, which by the end of the run allows for some decent setups.

So an unsettled first few days of December looks strongly favoured, thereafter plenty of uncertainty as to whether it stays unsettled.

Personally I thing there's enough hints in the outlook to have some optimism for this being a fairly brief unsettled spell but time will tell I guess

 


Home: Tunbridge Wells

Work: Tonbridge

Solar Cycles
25 November 2018 09:32:26

To be perfectly honest, an Atlantic dominated spell of weather would be a marked improvement to the garbage of the past ten days or so. At least we will actually get some “weather” or even see the sun here. “Normal autumn” will do just fine, there’s lots of time for winter. This endless grey and daily semi-darkness is awful (essentially zero hours of sunshine since the 12th of November).

Originally Posted by: doctormog 

It sounds like a normal summers day in Aberdeen doc. 😜

JACKO4EVER
25 November 2018 09:34:23
As far as the reliable output goes the Atlantic is in charge- and it wouldn’t at all surprise me if it were for an extended period. Normality to resume?
doctormog
25 November 2018 09:35:36

It sounds like a normal summers day in Aberdeen doc. 😜

Originally Posted by: Solar Cycles 

Seriously though, it has been grim (by anyone”s standards!). The outlook seems to be unsettled but given the medium range uncertainty and chopping and changing I’m not sure I would read too many signs into it one way or the other as regards to the portents for winter. 


Ally Pally Snowman
25 November 2018 09:40:41

OK some positivity from me like yesterday the GFS Para takes us to winter wonderland again but day 16 . Just a glimmer of hope.

 


Bishop's Stortford 85m ASL.
Solar Cycles
25 November 2018 09:46:15

OK some positivity from me like yesterday the GFS Para takes us to winter wonderland again but day 16 . Just a glimmer of hope.

 

Originally Posted by: Ally Pally Snowman 

When does the Para take over?

briggsy6
25 November 2018 10:31:48

I have a horrible feeling that once the mobile westerly dirge sets in, it will take a lot of stopping. Worry ing times ahead if you are snow lover.


Location: Uxbridge
Ally Pally Snowman
25 November 2018 10:33:39

When does the Para take over?

Originally Posted by: Solar Cycles 

 

At some point in 2019 I believe 

 


Bishop's Stortford 85m ASL.
Solar Cycles
25 November 2018 10:38:40

 

 

At some point in 2019 I believe 

 

Originally Posted by: Ally Pally Snowman 

👍🏻

Gooner
25 November 2018 10:39:26

As far as the reliable output goes the Atlantic is in charge- and it wouldn’t at all surprise me if it were for an extended period. Normality to resume?

Originally Posted by: JACKO4EVER 

Not according to the recent Gav video , the models have flipped to a strong blocking signal


Remember anything after T120 is really Just For Fun



Marcus

Banbury

North Oxfordshire

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