Heavy Weather 2013
13 January 2019 11:25:03

Originally Posted by: tallyho_83 


ECM @ 240 - People keep banging on about how good it is? - This doesn't look that wintry to me?




Thats a great chart. Sliding low and freezing SE winds. If it’s snow your after that’s a gooden


Mark
Beckton, E London
Less than 500m from the end of London City Airport runway.
Notty
13 January 2019 11:25:17
GFS FZ3 at 6z + 192 - weird chart !

http://modeles.meteociel.fr/modeles/gfsp/runs/2019011306/gfs-0-192.png?6 
Notty
Pontypool, 132m asl
Weathermac
13 January 2019 11:28:09

Originally Posted by: Notty 

GFS FZ3 at 6z + 192 - weird chart !

http://modeles.meteociel.fr/modeles/gfsp/runs/2019011306/gfs-0-192.png?6


GFS hasnt got a clue at the moment these weird charts are typical when its not sure what to do.

White Meadows
13 January 2019 11:30:46
Models clearly suffering from major SSW impact, they are just not designed to compute such scenarios by default.
So unsure why some peeps are surprised to see odd & contorted output I.e warm easterlies off a cold continent.
jhall
13 January 2019 11:31:31

Originally Posted by: tallyho_83 


ECM @ 240 - People keep banging on about how good it is? - This doesn't look that wintry to me?



You need to look at the 850 mb chart as well. The wind has gone round to the east over eastern England, and brought in air that it close to -10 at 850 mb. And with surface pressure so low, there could be copious snowfall.


Cranleigh, Surrey
Heavy Weather 2013
13 January 2019 11:33:45
What is the commentary from the experts at the moment from GFS HQ. Are they preference any model solution over another.

I don’t have a link to where to find this?
Mark
Beckton, E London
Less than 500m from the end of London City Airport runway.
tallyho_83
13 January 2019 11:35:52

Originally Posted by: jhall 


 


You need to look at the 850 mb chart as well. The wind has gone round to the east over eastern England, and brought in air that it close to -10 at 850 mb. And with surface pressure so low, there could be copious snowfall.



Kent get's the -10 @ 850hpa


That Azores HP really isn't helping!



Home Location - Kellands Lane, Okehampton, Devon (200m ASL)
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Sean Moon
Magical Moon
www.magical-moon.com


Retron
13 January 2019 11:38:17
The 0z EPS has the 850 mean going below -5C next Thursday, then staying at or below -5C for the next 10 days, all the way to the end of its run. Remarkable.

https://weather.us/forecast/2643743-london/ensemble/euro/temperatur850 

Leysdown, north Kent
Notty
13 January 2019 11:45:51
I’ve been glued to model watching for many weeks now and over the last few days, to my mind, GFS FZ3 has been showing a snow event for a week Tuesday 22nd ...

http://modeles.meteociel.fr/modeles/gfsp/runs/2019011306/gfs-2-222.png?6 
Notty
Pontypool, 132m asl
Notty
13 January 2019 11:48:46
FI I know but look at the Scandinavian high and the Azores LOW

http://modeles.meteociel.fr/modeles/gfsp/runs/2019011306/gfs-0-300.png?6 
Notty
Pontypool, 132m asl
Heavy Weather 2013
13 January 2019 11:50:40
Lots of fun interest in the Ensembles.

The 06z age a good set and add more meat to the bone
Mark
Beckton, E London
Less than 500m from the end of London City Airport runway.
nsrobins
13 January 2019 12:00:13

Originally Posted by: Heavy Weather 2013 

Lots of fun interest in the Ensembles.

The 06z age a good set and add more meat to the bone


P19 my pick - but there are a few non descript options too.


We’ll need a few more days before lighting the beacons on this one IMO, the one positive bring we’re not trying to lock in a three day Easterly but more a longer term cold period with potentially multiple opportunities.


Neil
Fareham, Hampshire 28m ASL (near estuary)
Stormchaser, Member TORRO
Heavy Weather 2013
13 January 2019 12:01:45

Originally Posted by: nsrobins 


 


P19 my pick - but there are a few non descript options too.


We’ll need a few more days before lighting the beacons on this one IMO, the one positive bring we’re not trying to lock in a three day Easterly but more a longer term cold period with potentially multiple opportunities.



Agreed. And quite right about P19x I’ll bank that one!!


Mark
Beckton, E London
Less than 500m from the end of London City Airport runway.
tallyho_83
13 January 2019 12:18:34

06z para looks very snowy Monday 22nd and Tuesday!


-7 to -9c uppers and daytime maxes of 0 to +2c by day falling to -2c and we have this heading our way..!?


Slider low is similar to the ECM @ 240 hours?




Resulting in this at the end of the day:



Home Location - Kellands Lane, Okehampton, Devon (200m ASL)
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Sean Moon
Magical Moon
www.magical-moon.com


Solar Cycles
13 January 2019 12:21:17

Slowly starting to get a tad excited with the output as we head into the latter end of next week and beyond. Whilst where and when it will snow is futile at these timescales what we can say is we’re looking at potentially some very cold overnight minimums as we enter into the final ten days of the month.

tallyho_83
13 January 2019 12:22:26

06z ensemble chart for London - you can clearly see the 0P run us milder?



Home Location - Kellands Lane, Okehampton, Devon (200m ASL)
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Sean Moon
Magical Moon
www.magical-moon.com


JACKO4EVER
13 January 2019 12:39:29
Some interesting output this morning for sure, but also some nondescript runs too- somewhat in the minority though. I just hope that Sod’s law doesn’t prevail....
Brian Gaze
13 January 2019 12:42:25

London snow row probably the highest it has been this winter.


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


Also a few trenchers are starting to appear in the GEFS output. 


Brian Gaze
Berkhamsted
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Shropshire
13 January 2019 12:48:07

Originally Posted by: JACKO4EVER 

Some interesting output this morning for sure, but also some nondescript runs too- somewhat in the minority though. I just hope that Sod’s law doesn’t prevail....


If I'm hopeful and Solar Cycles is hopeful then that should be good enough for you !


Seriously, I think the GFS will backtrack towards the Euro position. Going forward we have a Euro trough and increasing signs that the Azores High will displace favourably. With both of these factors taken together with EC ensemble guidance, we really shouldn't go wrong.


 


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tallyho_83
13 January 2019 12:53:38

Originally Posted by: Brian Gaze 


London snow row probably the highest it has been this winter.


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


Also a few trenchers are starting to appear in the GEFS output. 



We really need that OP run to make it's mind up and 'get a grip'!! 


Home Location - Kellands Lane, Okehampton, Devon (200m ASL)
---------------------------------------
Sean Moon
Magical Moon
www.magical-moon.com


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