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Quantum
  • Quantum
  • Advanced Member Topic Starter
23 January 2019 15:20:22


Tonight's 'event' courtesy of a very weak occluded front moving south ahead of the main warm sector to the west. I wouldn't expect much of this, its a very weak feature indeed. 


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.
Arcus
23 January 2019 19:58:51

Shower activity associated with the trough developing nicely now in S. Scotland. MetO Auto going for light snow/heavy snow IMBY from 2am to 7am. We'll see...


Ben,
Nr. Easingwold, North Yorkshire
30m asl
Whether Idle
23 January 2019 20:09:39


 


Nice


Obviously a proper coastal clipper as over in these parts it cloudy but dry!


Originally Posted by: Hippydave 


The sweet spot had around 7-8cms of fresh snow by 0930 this morning.  This has melted and compacted to a stodgy 3-4cms.


The most significant snowfall locally on the hills to my North  for 6 years, which shows how far things have gone downhill.  A nice little fall very locally, but a pitiful wider scenario.


Dover, 5m asl. Half a mile from the south coast.
Tim A
23 January 2019 20:21:26


Shower activity associated with the trough developing nicely now in S. Scotland. MetO Auto going for light snow/heavy snow IMBY from 2am to 7am. We'll see...


Originally Posted by: Arcus 


If anything the automated forecasts look better for the Vale of York than here. More milder air moving into the west. Also i am always highly sceptical of anything from the NW. Tends to break up . I reckon one area of heavier precipation moving down the eastern side of N England, some in the west and nothing in the middle...


Tim
NW Leeds
187m asl

 My PWS 
Russwirral
23 January 2019 20:26:44
Yeh that feature moving south seems to have more clout and to be movinf quicker than forecast. Temp is meant to be about 3*c... but is currently 0.2*c with DP -1.

This could develop.
LeedsLad123
23 January 2019 20:31:17


 


If anything the automated forecasts look better for the Vale of York than here. More milder air moving into the west. Also i am always highly sceptical of anything from the NW. Tends to break up . I reckon one area of heavier precipation moving down the eastern side of N England, some in the west and nothing in the middle...


Originally Posted by: Tim A 


That’s what one of the high res models showed.


Whitkirk, Leeds - 85m ASL.
Caz
  • Caz
  • Advanced Member
23 January 2019 21:09:52

Yeh that feature moving south seems to have more clout and to be movinf quicker than forecast. Temp is meant to be about 3*c... but is currently 0.2*c with DP -1.

This could develop.

Originally Posted by: Russwirral 

Automated currently has me at -1c and it’s actually -4.6c.  It’s also now showing snow here in the early hours of morning. We’ll see!  


Market Warsop, North Nottinghamshire.
Join the fun and banter of the monthly CET competition.
Saint Snow
23 January 2019 21:10:15

Just been out to the car, and it feels noticeably less cold than it did at 6.30pm


I reckon rain for here, perhaps something less depressing further east.


Looking at the radar, there's a dangler dropping into the mid-point of N Wales, but the main clump of PPN isn't making much progress and is still in southern Scotland.



Martin
Home: St Helens (26m asl) Work: Manchester (75m asl)
A TWO addict since 14/12/01
"How can wealth persuade poverty to use its political freedom to keep wealth in power? Here lies the whole art of Conservative politics."
Aneurin Bevan
Joe Bloggs
23 January 2019 21:32:29


Just been out to the car, and it feels noticeably less cold than it did at 6.30pm


I reckon rain for here, perhaps something less depressing further east.


Looking at the radar, there's a dangler dropping into the mid-point of N Wales, but the main clump of PPN isn't making much progress and is still in southern Scotland.


Originally Posted by: Saint Snow 


There’s a “clump” quite close by now Saint. Some quite bright echoes. You could catch the southern edge. 


Currently -2C/-3C here - any precipitation that makes it this far this side of midnight will be snow. 


 



Manchester City Centre, 31m ASL

ChrisJG
23 January 2019 21:59:45
Some light snow here now but could count the ‘snow grains’ outside. Usually the snow showers dissipate when travelling over Dumfriesshire so hoping a bit more holds together this time.
Home - near Penrith 150m ASL
Work - North/Central Cumbria
Saint Snow
23 January 2019 22:27:03


 


There’s a “clump” quite close by now Saint. Some quite bright echoes. You could catch the southern edge. 


Currently -2C/-3C here - any precipitation that makes it this far this side of midnight will be snow. 


 


Originally Posted by: Joe Bloggs 


 


Fraid not, it missed to my north. The next clump, however, shows much more potential!



Martin
Home: St Helens (26m asl) Work: Manchester (75m asl)
A TWO addict since 14/12/01
"How can wealth persuade poverty to use its political freedom to keep wealth in power? Here lies the whole art of Conservative politics."
Aneurin Bevan
Joe Bloggs
23 January 2019 22:29:58


 


 


Fraid not, it missed to my north. The next clump, however, shows much more potential!


Originally Posted by: Saint Snow 


I think the clump that has missed you should be over my house within about 20 mins. Hoping it stays as a yellow one and doesn’t downgrade to green.


Good luck with the next one. Beware of those dew points and milder upper air due later. Already reports of rain and sleet in the NW thread on the other side.


We are NOT normal 😂



Manchester City Centre, 31m ASL

Saint Snow
23 January 2019 22:34:19


 


I think the clump that has missed you should be over my house within about 20 mins. Hoping it stays as a yellow one and doesn’t downgrade to green.


Good luck with the next one. Beware of those dew points and milder upper air due later. Already reports of rain and sleet in the NW thread on the other side.


We are NOT normal 😂


Originally Posted by: Joe Bloggs 


 


Liverpool Airport is at 0c/-1c


Manchester Airport is at -2c/-2c


Given Liverpool Airport is right on the estuary, we're usually closer to the Manchester Airport numbers, so fingers crossed.


Good luck to you, too. Think even if we get a covering it'll be gone by morning. 



Martin
Home: St Helens (26m asl) Work: Manchester (75m asl)
A TWO addict since 14/12/01
"How can wealth persuade poverty to use its political freedom to keep wealth in power? Here lies the whole art of Conservative politics."
Aneurin Bevan
Joe Bloggs
23 January 2019 22:50:41


 


 


Liverpool Airport is at 0c/-1c


Manchester Airport is at -2c/-2c


Given Liverpool Airport is right on the estuary, we're usually closer to the Manchester Airport numbers, so fingers crossed.


Good luck to you, too. Think even if we get a covering it'll be gone by morning. 


Originally Posted by: Saint Snow 


Well it’s sleeting here. Fairly annoying when the temp is -2C  outside. If that’s not a sign I should give up, I don’t know what is! 



Manchester City Centre, 31m ASL

Quantum
  • Quantum
  • Advanced Member Topic Starter
23 January 2019 23:04:32


 


Well it’s sleeting here. Fairly annoying when the temp is -2C  outside. If that’s not a sign I should give up, I don’t know what is! 


Originally Posted by: Joe Bloggs 


At least it will settle.


Wonder what wierd grey deposits you will have by morning.


 


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.
Russwirral
26 January 2019 16:12:36
Time to dust off this thread again.

Lots of potential next week. Area for serious snowfall could be anyone in the UK. Though central and southern parts...from experience usually win out here..


Hippydave
26 January 2019 18:02:09

Not getting particularly excited re Tuesday down here - a flick through some of the 12z output suggests either the LP misses us to the south or has that bit too much mild air entrenched and brings mostly rain with maybe a bit of back edge stuff.


Arpege for example has next to nothing other than rain. Icon shows rain for 5-6 hours before some snowfall although accumulation chart shows 2cm over the downs, which doesn't suggest anything too exciting.


GFS Op shows the low less developed and further south with maybe some sleet or snow fringing the south coast. GFSP has an active system with snow falling.


UKMO has an active system although no idea if it'd be wet or white.


 


I guess overall as it stands I'd not be surprised to see falling snow at some point if the system doesn't end up further south but any kind of decent accumulations seem unlikely although not entirely out of the question imo.


Bit of a forecasting nightmare tbh


Nearer term and looking good for the Scottish Highlands tonight - should be some significant falls there


Home: Tunbridge Wells
Work: Tonbridge
Russwirral
26 January 2019 20:15:08
Honestly i wouldnt take any of the output at face value at the moment. Id say whoever wakes up tuesday as the winner is likely to be so.


Therefor take it easy and be hopeful.
doctormog
26 January 2019 20:18:27


Not getting particularly excited re Tuesday down here - a flick through some of the 12z output suggests either the LP misses us to the south or has that bit too much mild air entrenched and brings mostly rain with maybe a bit of back edge stuff.


Arpege for example has next to nothing other than rain. Icon shows rain for 5-6 hours before some snowfall although accumulation chart shows 2cm over the downs, which doesn't suggest anything too exciting.


GFS Op shows the low less developed and further south with maybe some sleet or snow fringing the south coast. GFSP has an active system with snow falling.


UKMO has an active system although no idea if it'd be wet or white.


 


I guess overall as it stands I'd not be surprised to see falling snow at some point if the system doesn't end up further south but any kind of decent accumulations seem unlikely although not entirely out of the question imo.


Bit of a forecasting nightmare tbh


Nearer term and looking good for the Scottish Highlands tonight - should be some significant falls there


Originally Posted by: Hippydave 


Yes I suspect some inland and Highlands areas could get a significant fall overnight. I’m just hoping that when the cold air eventually arrives here that it won’t be bone dry, but I have very low expectations.


Believe it or not I think Tuesday is still too far off to have any confidence in any one particular scenario.


glenogle
26 January 2019 20:21:47
Can see the progress of the cold air on the traffic Scotland cams. Been snowing at daviot just below Inverness since late afternoon and has been so at slochd further south for last few hours. Not visible on any cams further south last time I checked.
UserPostedImage LLTNP 105m asl 
nsrobins
27 January 2019 08:22:13
The wave/low feature Tues pm the focus for C and S parts is the cause of significant uncertainty. Likely a RACY candidate, deepening at over 1mb/hr from Mon am to Tues pm. It’s all about track this one as the air in place is really marginal with regards rain/snow ppn type. And with all the discussion about will it or wont it produce snow, a shift North brings with it the risk of damaging winds on it’s southern flank.
Fascinating 48hrs of forecasting for all concerned.

Neil
Fareham, Hampshire 28m ASL (near estuary)
Stormchaser, Member TORRO
scillydave
27 January 2019 08:39:14
From an IMBY perspective this kind of set up has the potential to be fantastic. We have the height to help with some of the marginal side of things and that height also helps with increased wind strength and orographic forcing.
There's nothing like a full gale, heavy wet snow and temps just below freezing to make a place look like the day after tomorrow!
There was a super picture s couple of years back from a member who lived in Princetown on Dartmoor of just that kind of set up.

Currently living at roughly 65m asl North of Cowbridge in the Vale of Glamorgan.

Formerly of, Birdlip, highest village in the Cotswolds and snow heaven in winter; Hawkinge in Kent - roof of the South downs and Isles of Scilly, paradise in the UK.
doctormog
27 January 2019 08:45:52

Here is the Euro4 take on the snowfall over the next 48 hours (or until midnight tomorrow anyway). Tuesday’s low pressure is not quite in its short term range. It will be interesting to see how accurate this is as anything that settles today or tomorrow is likely to hang around for a few days at least.

https://expert-images.images-weatheronline.com/daten/proficharts/web/en/euro4/2019/01/27/basis00/ukuk/weas/19012900_2_2700.gif


nsrobins
27 January 2019 09:58:53
06 runs if anything ease away from a significant event Tues pm. GFS 0.25 ppn has only back edge snow on the occlusion - flow ahead of it is onshore and for the majority of low altitude south it’s rain/sleet only.

Neil
Fareham, Hampshire 28m ASL (near estuary)
Stormchaser, Member TORRO
Shropshire
27 January 2019 10:04:45

06 runs if anything ease away from a significant event Tues pm. GFS 0.25 ppn has only back edge snow on the occlusion - flow ahead of it is onshore and for the majority of low altitude south it’s rain/sleet only.

Originally Posted by: nsrobins 


Yes looks like a rain to snow event, altitude likely to be important with Brian probably in the best place.


 


From December 27th 2020, zonality will be banned from mixing with the UK. We appreciate that this may come as a shock to younger people and old Uncle Barty. This ban will last for a minimum of ten days.

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