Polar Low
07 February 2020 22:58:21

Gfs ens can’t see Sunday just yet either a major victory for the lady or a dismal fail 65 Tops on those for London


http://www.meteociel.fr/modeles/gefs_table.php?x=0&y=0&lat=51.5085&lon=-0.12574&run=12&ext=fr&mode=13&sort=0


Originally Posted by: idj20 




I have. Unfortunately.

And yet ECM (and other "lesser known models") couldn't be any more different with high pressure trying to move in from the continent at about that same time frame. Just hope for our sakes that it'll be GFS who is going to end up being wrong on this occasion, not sure we'll be able to take much more punishment after Sunday's gales.


Ally Pally Snowman
07 February 2020 23:04:01

Wales gets hammered on the 18z GFS, but pretty much every county in England gets 70 mph gusts at some point on Sunday.  Remarkable!


 


Bishop's Stortford 85m ASL.
Polar Low
07 February 2020 23:10:05

Violent storm at around that time n/e Scotland very nasty indeed


http://www.meteociel.fr/cartes_obs/gens_panel.php?modele=0&mode=1&ech=48


 


 

idj20
07 February 2020 23:28:06

Originally Posted by: Polar Low 


Gfs ens can’t see Sunday just yet either a major victory for the lady or a dismal fail 65 Tops on those for London


http://www.meteociel.fr/modeles/gefs_table.php?x=0&y=0&lat=51.5085&lon=-0.12574&run=12&ext=fr&mode=13&sort=0





Indeed, virtually all the stamps shows that high pressure ridging but the op still shows that vicious Channel low: http://www.meteociel.fr/cartes_obs/gens_panel.php?modele=0&mode=1&ech=192, so it is an "outlier"? 

Oh well, hopefully it'll be nothing more than a bad dream when I wake up tomorrow morning. The upcoming Sunday storm is unnerving as it is, can't be doing with any more after that, like what has been happening in Feb 2014. 


Folkestone Harbour. 
Polar Low
07 February 2020 23:34:00

Severe charts for n/w as short wave tries to develop some of the worst I’ve ever seen H @ Bailey?


http://www.meteociel.fr/cartes_obs/gens_panel.php?modele=0&mode=1&ech=84


yup big H at Bailey there.


 


 


 


 


 


 

Polar Low
07 February 2020 23:47:04

The thing is Ian I find the weather interesting but to get a trusted roofer or the tiles are going to be like gold dust with excessive cost for us all have plucker insurance but that does not guarantee anything.



Originally Posted by: idj20 




Indeed, virtually all the stamps shows that high pressure ridging but the op still shows that vicious Channel low: http://www.meteociel.fr/cartes_obs/gens_panel.php?modele=0&mode=1&ech=192, so it is an "outlier"? 

Oh well, hopefully it'll be nothing more than a bad dream when I wake up tomorrow morning. The upcoming Sunday storm is unnerving as it is, can't be doing with any more after that, like what has been happening in Feb 2014. 


picturesareme
08 February 2020 00:27:06

Originally Posted by: Gusty 


Has anyone seen this 18z run for gusts at 192 hours ?


Off the scale stuff with gusts probably in excess of 110 mph in the Channel


http://modeles2.meteociel.fr/modeles_gfs/runs/2020020718/192-289UK.GIF?07-18


 


No photo description available.



150kmph is only 93mph so not sure how you've arrived in excess of 110mph which is 177kmph

Ally Pally Snowman
08 February 2020 06:25:43

No change from GFS and ecm this morning. Both have 70 to 80 mph widely. Ecm has 100 mph for north Wales and nearly 90 in the channel. 


Bishop's Stortford 85m ASL.
surbitonweather
08 February 2020 07:40:29
Met Office forecast for my local area not that severe compared to what the models are showing.....

https://www.metoffice.gov.uk/weather/forecast/gcpu2mjnb#2020-02-09 

Is that data known to be accurate? Mean wind speeds of 25mph & gusts to 50 ish at odds with the GFS, ECM.......


Surbiton, Surrey 21m ASL
Gusty
08 February 2020 07:53:09

No change this morning. If anything the ensembles have upped the mean sustained speeds as the rest of the pack catch up with the operational. 23 m/s equates to a steady wind of 52 mph.


Should the rest of the pack continue to play catch up with the operational a violent week can be expected.


A signal appearing for another storm in the early hours of Thursday 13th.


https://www.wetterzentrale.de/en/show_diagrams.php?geoid=49909&model=gfs&var=9&run=0&lid=ENS&bw=1


Steve - Folkestone, Kent
Current conditions from my Davis Vantage Vue
https://www.wunderground.com/dashboard/pws/IFOLKE11 
Join Kent Weather on Facebook.
https://www.facebook.com/stevewall69/ 



IanT
  • IanT
  • Advanced Member
08 February 2020 07:59:40

Originally Posted by: surbitonweather 

Met Office forecast for my local area not that severe compared to what the models are showing.....

https://www.metoffice.gov.uk/weather/forecast/gcpu2mjnb#2020-02-09

Is that data known to be accurate? Mean wind speeds of 25mph & gusts to 50 ish at odds with the GFS, ECM.......


 


I don’t see a notable inconsistency.


Besides “to” generally indicates an upper bound. Most would describe 56, 58, 57 as “...gusts to 60 ish...”. 


Woking, Surrey. 40m asl.
surbitonweather
08 February 2020 08:07:49

Originally Posted by: IanT 


 


 


I don’t see a notable inconsistency.


Besides “to” generally indicates an upper bound. Most would describe 56, 58, 57 as “...gusts to 60 ish...”. 



 


Thanks Ian, I was fearing a lot worse in my area, gusts to 50-60mph max not too bad........


Surbiton, Surrey 21m ASL
nsrobins
08 February 2020 08:16:49

Originally Posted by: surbitonweather 


 


 


Thanks Ian, I was fearing a lot worse in my area, gusts to 50-60mph max not too bad........



I’ve studied these events for many years. A significant majority of the damage (trees, buildings) with these storms occurs from one or two rogue peak gusts (often associated with trough passage or in rare occasions sting jet impacts).


In a general swathe of 60mph gusts you might get a rogue local 70mph gust and off go your ridge tiles.


Here in The Solent I’m advising against travel tomorrow afternoon but the ‘highlight’ could be the coast. The overtopping still high tide is going to be something else.


Neil
Fareham, Hampshire 28m ASL (near estuary)
Stormchaser, Member TORRO
Ally Pally Snowman
08 February 2020 08:17:42

Originally Posted by: surbitonweather 


 


 


Thanks Ian, I was fearing a lot worse in my area, gusts to 50-60mph max not too bad........



 


Obviously we have to wait and see but most of the models and the Beeb forecasts suggest 60 to 80 mph for your area.  These automated forecasts are notoriously poor for this type of event.


 


Bishop's Stortford 85m ASL.
SJV
  • SJV
  • Advanced Member
08 February 2020 08:19:50

Originally Posted by: picturesareme 


 


150kmph is only 93mph so not sure how you've arrived in excess of 110mph which is 177kmph



Only 93mph? Phew, panic over 



Follow/like Steel City Skies - Sheffield Weather Forecasting on Facebook , Twitter  and Instagram .
📢 Play the TWO Forums Quiz!  📢
Heavy Weather 2013
08 February 2020 08:54:16
The Aperge model shows gusts to 130kph in some parts of the South/SE.

What time are the warnings updated. I wonder if we may get a red warning issued.

Neil, are you hearing anything?
Mark
Beckton, E London
Less than 500m from the end of London City Airport runway.
four
  • four
  • Advanced Member
08 February 2020 09:03:48
The gustiness encourages and amplifies oscillation especially larger trees, that's what tears stuff down.
The actual peak gust figure or sustained speed isn't a good guide to how damaging it will be.
four
  • four
  • Advanced Member
08 February 2020 09:07:13

Originally Posted by: surbitonweather 

Met Office forecast for my local area not that severe compared to what the models are showing.....

https://www.metoffice.gov.uk/weather/forecast/gcpu2mjnb#2020-02-09

Is that data known to be accurate? Mean wind speeds of 25mph & gusts to 50 ish at odds with the GFS, ECM.......



We get 50mph+ gusts all the time (one this morning already hardly noticed) Met office is usually very close both timing and highest gust but only if you look shortly before.
They are continually revising it and most times gradually less than suggested 2 or 3 days before - but not always


nsrobins
08 February 2020 09:14:37

Originally Posted by: Heavy Weather 2013 

The Aperge model shows gusts to 130kph in some parts of the South/SE.

What time are the warnings updated. I wonder if we may get a red warning issued.

Neil, are you hearing anything?


Amber will be expanded in this morning’s revision round. Red unlikely but you never know - if it is it will use the 12Z or 18Z data and real time to assess the very latest.


Neil
Fareham, Hampshire 28m ASL (near estuary)
Stormchaser, Member TORRO
surbitonweather
08 February 2020 09:17:42

Originally Posted by: Ally Pally Snowman 


 


 


Obviously we have to wait and see but most of the models and the Beeb forecasts suggest 60 to 80 mph for your area.  These automated forecasts are notoriously poor for this type of event.


 



The amount of friends I see using the BBC weather app & taking it for gospel......then it's spectacularly wrong! 


I was hoping the MetO website forecasts were different but it seems they're not! 


Surbiton, Surrey 21m ASL
Users browsing this topic

Ads