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dagspot
28 January 2019 22:15:36
hold the phone... heavy wet flakes now!
Neilston 600ft ASL
doctormog
28 January 2019 22:17:19

Was expecting frequent heavy snow showers into West Scotland tonight. So far temps rising (now 2dc and dp 1) and rain.

Originally Posted by: dagspot 


I think things will be a little more conducive for snow in the coming hours and overnight. Up until recently things will have been on the wrong side of marginal. 


tallyho_83
28 January 2019 22:27:35


Tommorow is very finally balanced wrg to Rain/Snow. The AROME 18Z is the one to watch.


That model is very much on the fence, which ever way it goes down I'd be inclined to beleive it.



Regarding Thursday. I'm not suprised the low continues to trend south, it always happens....


 


 


Originally Posted by: Quantum 


 


Q ? Where are you? you don;'t have to tell me which city but where in UK as i can't see where you are/will be reporting from? Thanks. 


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


Solar Cycles
28 January 2019 22:40:04
Snow reported in Manchester but some 27 miles north itโ€™s piddling down.๐Ÿ˜
Russwirral
28 January 2019 22:43:55

Snow reported in Manchester but some 27 miles north it’s piddling down.๐Ÿ˜

Originally Posted by: Solar Cycles 


 


We had rain @ 1.2*c


Rob K
28 January 2019 22:49:37
I noticed there was wet snow in Manchester on the live report on the 10pm news.

Meanwhile the 10.45 National forecast had snow only โ€œto the north of Londonโ€ so expect that yellow warning to be altered soon.
Yateley, NE Hampshire, 73m asl
"But who wants to be foretold the weather? It is bad enough when it comes, without our having the misery of knowing about it beforehand." โ€” Jerome K. Jerome
Gandalf The White
28 January 2019 22:52:06

Quantum suggested the Arome 18z run would be a good pointer. Pretty much in line with then BBC TV forecast: a messy mixture of everything



Location: South Cambridgeshire
130 metres ASL
52.0N 0.1E


snow 2004
28 January 2019 22:55:10
A nice surprise dusting from this evenings passing showers. Tomorrow really is going to be a look out the window and see. Yet again I'm at that awkward altitude where I may get a slushy dusting but 100 metres higher up get absolutely pasted.
Glossop Derbyshire, 200m asl
Joe Bloggs
28 January 2019 23:16:49

18z EURO4.


The model is now firmly picking up the on the idea of a streamer heading into Greater Manchester and the Peak District, tomorrow night into Wednesday morning. I’ll be very impressed if it has picked up on this fine detail correctly. 




Also a polar low NW Scotland - note the significant snow totals here. 



Manchester City Centre, 31m ASL

tallyho_83
28 January 2019 23:46:36


18z EURO4.



Originally Posted by: Joe Bloggs 


One can see the River ex clearly there 


GFS 18Z PRECIPITATION CHART 


18:00 TOMORROW (Tues) - looks like the precipitation hasn't cleared the SW parts of England yet and looks more widespread:



 


ICON on the other hand has the precipitation clearing SW England and much lighter by 1800:



 


GEM - Again very different to the Icon which is different to the GFS op run for 18:00 Tuesday.



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


Darren S
28 January 2019 23:51:52



Snow risk map people wanted. Valid for 24 hours starting midnight. Risk of falling snow that you don't need to squint to see. So large parts of England under that feature 'only', in my opinion have a 60% chance of seeing snow. There is a 40% chance it will be sleet or rain.


Originally Posted by: Quantum 


All I can see is some actors from an Arabic TV programme? 


Darren
Crowthorne, Berks (87m asl)
South Berks Winter Snow Depth Totals:
2023/24 0 cm; 2022/23 7 cm; 2021/22 1 cm; 2020/21 13 cm; 2019/20 0 cm; 2018/19 14 cm; 2017/18 23 cm; 2016/17 0 cm; 2015/16 0.5 cm; 2014/15 3.5 cm; 2013/14 0 cm; 2012/13 22 cm; 2011/12 7 cm; 2010/11 6 cm; 2009/10 51 cm
Quantum
  • Quantum
  • Advanced Member Topic Starter
29 January 2019 00:10:16

OK this is where the models stand.


Mostly snow:


WRF


ICON


 


Sleety, mushy stuff:


ARPEGE


AROME


EURO4


HIRLAM


 


 


The ultimate nightmare is when the two best models split on this. AROME going one way and WRF going the other. Also HIRLAM which usually exaggerates snow potential is the rainiest of all the models pretty much. So no help there. Now AROME is the absolute god when it comes to evap cooling situs and is also good at warm occlusions and warm fronts. But this is a cold occlusion where the AROME is slightly less strong.


 


I stand by my risk maps that I posted earlier with a 60-70% risk of snow over most parts. The one adendum I would make is to increase snow risk in north yorksire, southern parts of northumberland and decrease the risk in parts of the vale of york and south yorkshire.


 


I think we should go with the AROME. Most parts should see snow tommorow, but it will likely mix with rain in the lighter periods and the snow will be wet where it does fall.


 


Twitter: @QuantumOverlord (general), @MedicaneWatch (medicane/TC stuff)
2023/2024 Snow days (approx 850hpa temp):
29/11 (-6), 30/11 (-6), 02/12 (-5), 03/12 (-5), 04/12 (-3), 16/01 (-3), 18/01 (-8), 08/02 (-5)

Total: 8 days with snow/sleet falling.

2022/2023 Snow days (approx 850hpa temp):

18/12 (-1), 06/03 (-6), 08/03 (-8), 09/03 (-6), 10/03 (-8), 11/03 (-5), 14/03 (-6)

Total: 7 days with snow/sleet falling.

2021/2022 Snow days (approx 850hpa temp):

26/11 (-5), 27/11 (-7), 28/11 (-6), 02/12 (-6), 06/01 (-5), 07/01 (-6), 06/02 (-5), 19/02 (-5), 24/02 (-7), 30/03 (-7), 31/03 (-8), 01/04 (-8)
Total: 12 days with snow/sleet falling.
LeedsLad123
29 January 2019 00:23:09


 


All I can see is some actors from an Arabic TV programme? 


Originally Posted by: Darren S 


I just see the risk map Q made. Where are you guys getting Arabic TV shows from?! 


Whitkirk, Leeds - 85m ASL.
xioni2
29 January 2019 00:39:54


I just see the risk map Q made. Where are you guys getting Arabic TV shows from?! 


Originally Posted by: LeedsLad123 


This is what I see, which I found quite appropriate 


LeedsLad123
29 January 2019 00:44:29


 


This is what I see, which I found quite appropriate 



Originally Posted by: xioni2 


How odd. This is what I see:



Whitkirk, Leeds - 85m ASL.
Rob K
29 January 2019 07:10:48
I saw the map yesterday when Q first posted it and then later in the evening it changed to the Arabic actors.
Yateley, NE Hampshire, 73m asl
"But who wants to be foretold the weather? It is bad enough when it comes, without our having the misery of knowing about it beforehand." โ€” Jerome K. Jerome
Rob K
29 January 2019 07:53:55

The Met Office forecast for tonight is now totally at odds with the yellow warning. It now shows all precipitation has cleared through here well before 9pm which is the time at which the warning starts! (And never mind that the wintriest that it gets is an hour of sleet at 7pm.)

Not much “joined-up thinking” going on in Exeter at the moment.


Yateley, NE Hampshire, 73m asl
"But who wants to be foretold the weather? It is bad enough when it comes, without our having the misery of knowing about it beforehand." โ€” Jerome K. Jerome
Heavy Weather 2013
29 January 2019 08:01:54


The Met Office forecast for tonight is now totally at odds with the yellow warning. It now shows all precipitation has cleared through here well before 9pm which is the time at which the warning starts! (And never mind that the wintriest that it gets is an hour of sleet at 7pm.)

Not much “joined-up thinking” going on in Exeter at the moment.


Originally Posted by: Rob K 


Quite; its been chopping and changing. One moment it was an overnight even and now an evening event. In fact, not an event at all if its snow you after.


I've seen these before; it will probably turn to snow just as the band will finish passing through.


The Met app does appear however to show a great chance of snowfall in Thursday evening. Though I wont hold my breath


Mark
Beckton, E London
Less than 500m from the end of London City Airport runway.
Heavy Weather 2013
29 January 2019 08:03:41


 


Quite; its been chopping and changing. One moment it was an overnight even and now an evening event. In fact, not an event at all if its snow you after.


I've seen these before; it will probably turn to snow just as the band will finish passing through.


The Met app does appear however to show a great chance of snowfall in Thursday evening. Though I wont hold my breath


Originally Posted by: Heavy Weather 2013 


Hold that front page. Its already changed for Thursday now showing sleet 


Mark
Beckton, E London
Less than 500m from the end of London City Airport runway.
DEW
  • DEW
  • Advanced Member
29 January 2019 08:04:54

radio Sussex in full panic mode over 1-3 cm predicted snowfall - which may never happen, especially on the coast where most people live.


War does not determine who is right, only who is left - Bertrand Russell

Chichester 12m asl
Heavy Weather 2013
29 January 2019 08:27:40


 


Quite; its been chopping and changing. One moment it was an overnight even and now an evening event. In fact, not an event at all if its snow you after.


I've seen these before; it will probably turn to snow just as the band will finish passing through.


The Met app does appear however to show a great chance of snowfall in Thursday evening. Though I wont hold my breath


Originally Posted by: Heavy Weather 2013 


Now being progged as a total rain event.


Mark
Beckton, E London
Less than 500m from the end of London City Airport runway.
Lionel Hutz
29 January 2019 08:51:17

While there may be disappointment for many(though not all today) today, I am getting a bit more optimistic about Thursday. Running through the Fax charts https://www.theweatheroutlook.com/twodata/datukgfshires.aspx?display=fax&model=fax the fronts approaching on Wednesday evening and into Thursday now seem to be approaching from a more Southerly trajectory, generally a more favourable direction of approach.


Lionel Hutz
Nr.Waterford , S E Ireland
68m ASL



Solar Cycles
29 January 2019 09:02:46
Looking like itโ€™s a rain/sleet event here going on what the Beeb are showing, thereafter a few wintry showers. Thursday looks like weโ€™re out of the picture as well. Cracking winter eh!! ๐Ÿ˜‚๐Ÿ˜‚
wingman
29 January 2019 09:08:36
So to my untrained eye looking at the rainfall radar (www.meteoradar.co.uk) I see a low pressure system tracking up the channel, a band of precipitation up the western side of the country (rain/snow/mix ?) and further precipitation, in presumably colder air, coming down from the northwest (and at a faster rate then the band moving east to west).

Is all the talk of this being a bust because the air coming down from the northwest is not cold enough so even if it undercuts it would not turn any rain to snow? Or are there other factors at play here?

Essan
29 January 2019 09:09:11

Rain today.   Maybe a dusting of snow Thursday night.   And then spring.    At least it won't have been the worst winter in recent years!


Andy
Evesham, Worcs, Albion - 35m asl
Weather & Earth Science News 

Anyone who is capable of getting themselves made President should on no account be allowed to do the job - DNA
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