Jump to content
Snow?
Local
Radar
Cold?
IGNORED

The hunt for cold - Model discussion (late November)


Paul
Message added by Paul

If you're hunting for cold potential in the model output, this thread is for you. But if you'd like to look more widely at the models, please head over to the general model discussion thread.

This is a model related thread, so a general, frequent theme of the model output is a given, but it will not be strictly enforced:

  • Some topic drift, humorous responses etc are fine
  • Posts likely to lead the thread off on an entirely off topic tangent are not ok. For example (but not solely limited to): Posts entirely or mainly about Met Office, BBC or media forecasts with little or no model context, and posts solely asking for a weather forecast in a specific location.
  • Posts which start with something like 'I know this is off topic but ...' are not ok.
  • Posts which break the forum guidelines are not ok (eg trolling, troll-hunting, weather guilt tripping, overly defensive/aggressive, abusive, disrespectful to others)

Recommended Posts

Posted
  • Location: West Dorset
  • Weather Preferences: Warm summers, Snowy winters.
  • Location: West Dorset
3 minutes ago, MattStoke said:

They don't need to be very low with winds from the south east.

True

 

gfs-14-150.png

  • Like 1
Link to comment
Share on other sites

Posted
  • Location: Longton, Stoke-on-Trent.
  • Location: Longton, Stoke-on-Trent.
10 minutes ago, bluearmy said:

If you’re north of the midlands with good elevation and east of the  M6 then I reckon you should be preparing your nose shaped carrots .....if the blocking strengthens significantly then you can always post them down here ! 

You're only saying that because of my location

Edited by MattStoke
  • Like 1
Link to comment
Share on other sites

Posted
  • Location: Eastbourne and Larnaca,Cyprus .
  • Location: Eastbourne and Larnaca,Cyprus .

After the first shortwave which ejects from the upstream low what happens after that is still subject to change.

Currently the GFS barrels the next low east with no disruption .The ECM has that runner low and is less progressive .

In these set ups you often develop a momentum if the Scandi block is underestimated with the pattern continuing to back further west and south .

We should have a better idea tonight if that’s going to happen .

At this point next week is still up in the air , could get whiter or conversely turn into an anti-climax .

Edited by nick sussex
  • Like 4
  • Thanks 1
Link to comment
Share on other sites

Posted
  • Location: st albans
  • Location: st albans
3 minutes ago, MattStoke said:

You're only saying that because of my username

You’re only just east of the M6 ......

gfsp is another jog west by day 3 (or more amplified would be the correct statement )

Edited by bluearmy
  • Like 3
Link to comment
Share on other sites

Posted
  • Location: Newhey, Lancashire ( 165m a/s/l )
  • Weather Preferences: Snow
  • Location: Newhey, Lancashire ( 165m a/s/l )
12 minutes ago, bluearmy said:

If you’re north of the midlands with good elevation and east of the  M6 then I reckon you should be preparing your nose shaped carrots .....if the blocking strengthens significantly then you can always post them down here ! 

I’ve always rated your predictions 

Link to comment
Share on other sites

Posted
  • Location: West Dorset
  • Weather Preferences: Warm summers, Snowy winters.
  • Location: West Dorset
4 minutes ago, nick sussex said:

After the first shortwave which ejects from the upstream low what happens after that is still subject to change.

Currently the GFS barrels the next low east with no disruption .The ECM has that runner low and is less progressive .

In these set ups you often develop a momentum if the Scandi block is underestimated with the pattern continuing to back further west and south .

We should have a better idea tonight if that’s going to happen .

At this point next week is still up in the air , could get whiter or conversely turn into an anti-climax .

That LP skirting across the South on Sunday has been modeled for days, needs a watch too.

  • Like 1
Link to comment
Share on other sites

Posted
  • Location: Bexhill-on-Sea, East Sussex
  • Weather Preferences: Winter Snow, extreme weather, mainly sunny mild summers though.
  • Location: Bexhill-on-Sea, East Sussex

Anyone notice the JMA 06z, out to T84, what a turnaround.

Even compared to its 00z run its a big upgrade!:clap:

 

Edit, here are the uppers, cold about 100 miles further west.

J84-21.gif

J96-21.gif

J84-7.gif

J96-7.gif

Edited by snowray
  • Like 6
  • Thanks 1
Link to comment
Share on other sites

Posted
  • Location: Edinburgh
  • Location: Edinburgh
44 minutes ago, bluearmy said:

If you’re north of the midlands with good elevation and east of the  M6 then I reckon you should be preparing your nose shaped carrots .....if the blocking strengthens significantly then you can always post them down here ! 

BBC weather and metoffice are showing a lot of sleet next week in Edinburgh, temperatures around 2-3C during precipitation. Will be interesting, all we need is a slight further west-shift and that will be changed to snow. 

  • Like 3
Link to comment
Share on other sites

Posted
  • Location: Beccles, Suffolk.
  • Weather Preferences: Thunder, snow, heat, sunshine...
  • Location: Beccles, Suffolk.

06Z GFS looking interesting @ T+348:

Netweather GFS Image

And even more so @ T+384:

Netweather GFS Image

So, again, the week immediately after Xmas could be exciting?

  • Like 5
Link to comment
Share on other sites

Posted
  • Location: portsmouth uk
  • Weather Preferences: extremes
  • Location: portsmouth uk
11 minutes ago, snowray said:

Anyone notice the JMA 06z, out to T84, what a turnaround.

Even compared to its 00z run its a big upgrade!:clap:

 

Edit, here are the uppers, cold about 100 miles further west.

J84-21.gif

J96-21.gif

J84-7.gif

J96-7.gif

infact this showed a few runs ago and also couple of days ago i said about the gem being like the jma.

but the gem has dropped that idea.

the problem we have is the intense heights to our south and southwest.

with what was said yesterday correct me if im wrong the atmosphere is more la nina than el nino.

the modoki el nino and low solar activity and at the time still an easterly qbo which of coarse is now a westerly qbo all this was very exciting stuff going forwards this winter.

problem is the la nina upper atmosphere that seems to be a thorn in winters side.

but the stratospheric warming forecast looks very interesting and if it happens is really going to crank up winter into january.

could we get an earlier record breaking warming event its possible.

although my canadian warming event i was looking for is unlikely to happen.

although i feel downbeat about next week and the scandi heights and that annoyingly strong azores high i cant see anything really exciting yet except further north.

but also looking at the jet stream forecast there is a relaxation of the powered up jet streak maybe allowing a reshuffle of heights.

so although on the fence there are still positives there for a cold end to winter.

still has the feel of 2009/2010 just about.

but im staying on the fence until i at least see wintry charts into the 96hr time frame maybe even earlier in these easterly situations.

i remember a few years ago the ukmo and an easterly that utterly failed very nearly went to the wire the ecm and ukmo were full steam ahead then it was gone and it was wet and stormy with pv returning in strength and winter being dominated by westerly flow although at times cold northwesterly flow.

i think it was 2014.

it was a very sad moment in net weather forum history lol.

but this year has more in favour than that year.

  • Like 3
  • Thanks 1
Link to comment
Share on other sites

Posted
  • Location: Fenland Fylde.The same village as Duncan Iceglide.
  • Weather Preferences: LP - Horizontal Drizzle - Nice Blizzards
  • Location: Fenland Fylde.The same village as Duncan Iceglide.
1 hour ago, Weathizard said:

Never underestimate the Scandi high, it’s remarkable how it’s destroying that low in the Atlantic and growing run on run. THOU SHALL NOT PASS.

The 6z is awfully close but not quite there, it’s still a big shift west

Yes - LP after LP batted away.

Link to comment
Share on other sites

Posted
  • Location: Fenland Fylde.The same village as Duncan Iceglide.
  • Weather Preferences: LP - Horizontal Drizzle - Nice Blizzards
  • Location: Fenland Fylde.The same village as Duncan Iceglide.

Nothing exciting at Sea Level on the GFS - strong LP's held off by the emerging Scandi.

FI has the Polar floodgates possibly opening on 24-12-18 :santa-emoji:

h500slp.thumb.png.59e45c1da37ffeb5ed254e8d6f0289ee.png

.....but it's FI

  • Like 2
  • Thanks 2
Link to comment
Share on other sites

Posted
  • Location: Manchester Deansgate.
  • Weather Preferences: Heavy disruptive snowfall.
  • Location: Manchester Deansgate.

Starting to get very concerned about the warming, its gonna displace the SPV back where we don't want it and then fizzle out before theres any chance of destroying it.

  • Thanks 1
Link to comment
Share on other sites

Guest
This topic is now closed to further replies.
×
×
  • Create New...