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Atlantic Storm 14th - 15th January


Liam J

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Posted
  • Location: Carlisle, Cumbria
  • Weather Preferences: Atlantic storms, severe gales, blowing snow and frost :)
  • Location: Carlisle, Cumbria

John Hammond had an extended weather forecast on BBC news and he went up to cover the storm next week and it was tracking to the NW of Ireland - Concern must be growing for this system for it to be now covered in TV broadcasts. 

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Posted
  • Location: Saltdean,Nr Brighton,East Sussex,Hither Green,SE London.
  • Location: Saltdean,Nr Brighton,East Sussex,Hither Green,SE London.

Although the gfs is to be congratulated at nailing the mid week storm early doors,my money would be on the ukmo solution (further south and less intense)history tells us the gfs tend to overcook these storms,so expect them to fall into line with the ukmo 120hrs chart in the coming days.( a dangerous storm for southern england,less severe further north).

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Posted
  • Location: Carlisle, Cumbria
  • Weather Preferences: Atlantic storms, severe gales, blowing snow and frost :)
  • Location: Carlisle, Cumbria

The UKMO is further south and less intense, wouldn't call it a dangerous storm though, but the GFS models would class as dangerous but as you say they are likely over doing it. ECM next... The best model :)

Edited by Liam J
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Posted
  • Location: Ireland
  • Location: Ireland

The UKMO is further south and less intense, wouldn't call it a dangerous storm though, but the GFS models would class as dangerous but as you say they are likely over doing it. ECM next... The best model :)

 

It's interesting though, it's deepens 25mb in 24 hours as it crosses the UK (Bombogenesis) and it's usually during that intense deepening phase that lows can produce their strongest winds. The GFS/GFS(P) on the other hand have already reached the mature phase as their lows approach the UK.

 

The UKMO could be deceptively nasty!

Edited by radiohead
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Posted
  • Location: Dunoon, Argyll Scotland
  • Location: Dunoon, Argyll Scotland

Some more updates,

 

12z NAVGEM takes the exact same route as the UKMO and GME.

 

post-6686-0-53222500-1420908624_thumb.pn

 

12z JMA only goes up to 84 hours at the moment the rest of the run comes out later but up to then its also going with the UKMO, GME and NAVGEM a Southerly route.

 

post-6686-0-82790300-1420908808_thumb.gi

 

Next the ECM will be out later on.

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Posted
  • Location: ipswich <east near the a14> east weather watch
  • Location: ipswich <east near the a14> east weather watch

best  i can find is 955  heading our way!!

post-4629-0-89327500-1420909800_thumb.pn

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Posted
  • Location: ipswich <east near the a14> east weather watch
  • Location: ipswich <east near the a14> east weather watch

What is likely impact from Mondays low?

i think that been  over looked and people are more about Wednesday storm  which looks  like a proper beast   and its coming when ever one on the move!!!

Wow some shocking ensembles/models just want to blow up the uk.

 

One to watch for sure

 

gens-2-1-108_qjd3.png

wait for the red warnings  to come!!!

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Posted
  • Location: Saltdean,Nr Brighton,East Sussex,Hither Green,SE London.
  • Location: Saltdean,Nr Brighton,East Sussex,Hither Green,SE London.

The UKMO is further south and less intense, wouldn't call it a dangerous storm though, but the GFS models would class as dangerous but as you say they are likely over doing it. ECM next... The best model :)

I think the ukmo solution would generate inland gusts of 70mph which is unusual,as has already been said, its a rapidly deepning feature as it runs across Northern England which promotes some very volotile conditions to the South of it.The Gfs solutions fill the storm as it leaves our shores,a squeeze of extreme winds for Northern England here ( mounting evidence tonight that this is less likely)
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Posted
  • Location: Upminster, Essex
  • Weather Preferences: Storms, high winds, thunder, snow
  • Location: Upminster, Essex

Some monster ensembles!

gens-2-1-120.png

I'll be soiling myself if the charts are still suggesting something as monumental as that in a couple of days time.

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Posted
  • Location: Leeds (Roundhay) 135m
  • Location: Leeds (Roundhay) 135m

Have we ever had 930mb low cross the northern UK? Of course that ensemble is far too extreme, although a potentially nasty storm seems likely. Will be interesting to see if the models trend the low further north, with the bulk of strong winds across Northern England and Southern Scotland. 

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Posted
  • Location: Saltdean,Nr Brighton,East Sussex,Hither Green,SE London.
  • Location: Saltdean,Nr Brighton,East Sussex,Hither Green,SE London.

Indeed ECM much closer to the GFS on a more Northern track.So GFS and ECM in one camp,UKMO and some of the lesser models in the more southern route camp.Often the middle ground is how things end up,so drop the gfs/ecm south a little and move the ukmo solution a little north.Depth wise perhaps a 960 system...?

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Posted
  • Location: Eshaness, Shetland Islands
  • Weather Preferences: Cool and Stormy
  • Location: Eshaness, Shetland Islands

And that is what I personally think is likely, with just a breezy spell down south.

It is likely that this system will be further north and weaker come the new week. NW will probably get the worse if it come off.

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Posted
  • Location: Darlington
  • Weather Preferences: Warm dry summers
  • Location: Darlington

Wednesday and Thursday both looking rather windy for most of the UK with see some gales going to be another couple of days before we can pinpoint the exact track for the areas which will get the strongest winds

 

ECU1-96.GIF?10-0ECU1-120.GIF?10-0

 

The low looks like tracking across Scotland before moving towards Norway. With temperatures in the USA slowly recovering next week that should help the jet to slow down thus stopping these deep lows once the once around mid week clears away

Edited by Summer Sun
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Posted
  • Location: Dunoon, Argyll Scotland
  • Location: Dunoon, Argyll Scotland

Here's the 12am Thursday wind chart from the 12z ECM it keeps the low exactly where it was on the 00z run from last night but this time its a bit weaker. So the ECM agree's with the GFS on the track of the storm.

 

post-6686-0-26212900-1420918101_thumb.pn

Edited by weathermaster
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Posted
  • Location: Ireland
  • Location: Ireland

Yes, 12Z ECM and GFS are in roughly the same position by 108 hours. The main difference is that the GFS is about 15mb deeper than the ECM. Though the ECM is overall not as intense as the GFS, it does feature a less symmetrical low with isobars squeezed pretty close in some areas which would give quite strong winds.

 

Hopefully we get a better agreement on the intensity after the 0Z runs in the morning.

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Posted
  • Location: Carlisle, Cumbria
  • Weather Preferences: Atlantic storms, severe gales, blowing snow and frost :)
  • Location: Carlisle, Cumbria

Sometimes misleading when viewing the ECM charts available as they are 24hrs apart. The crucial time is between 96-120hrs. The approaching depression is 965mb then 24 hours later it's 955mb which would suggest that it's still deepening as it crosses the UK, how deep we cannot see, perhaps 950mb? 

Edited by Liam J
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