Ally Pally Snowman
25 January 2021 17:12:48

Originally Posted by: Tom Oxon 


 


 


Yes, but I feel these scenarios are a perpetual jam tomorrow at the moment, can't get them out of T168+.



 


As WI has said the important bit is at 120h. But I'd agree it's an outside bet at the moment.  We could do with the ECM showing something similar later.


 


Bishop's Stortford 85m ASL.
Rob K
25 January 2021 17:20:17

Originally Posted by: tallyho_83 


Para goes for a southerly tracking low on 30th:


But looks like a cold rain event?




The para does give a bit of snow to the SW on the 30th and then again on the 31st.


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." — Jerome K. Jerome
tallyho_83
25 January 2021 17:25:56

Originally Posted by: Rob K 


 


The para does give a bit of snow to the SW on the 30th and then again on the 31st.



Argh yes I see that now and then turns back to rain - i am not use to using meteo site as yet - sure I will in due course.


Finally - JFF we see the BFTE - he looks scary doesn't he with purple eyes?



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


hobensotwo
25 January 2021 17:31:03

Originally Posted by: tallyho_83 


 


Argh yes I see that now and then turns back to rain - i am not use to using meteo site as yet - sure I will in due course.


Finally - JFF we see the BFTE - he looks scary doesn't he with purple eyes?




Lovely view that, well and truly blocked. With PV almost split. I think that would have legs if verified. Sadly a 1 in 10 shot at best you would have thought.

Brian Gaze
25 January 2021 17:48:44

CMC looks very snowy at a quick glance.


https://www.theweatheroutlook.com/twodata/gem.aspx?run=12&charthour=180&chartname=ukpreciptyperatec&chartregion=uk&charttag=Precip%20type%20rate


 



Brian Gaze
Berkhamsted
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"I'm not socialist, I know that. I don't believe in sharing my money." - Gary Numan
Rob K
25 January 2021 17:50:40

GEFS mean suggests to me there may be a fair few Scandi high options. Haven't gone through the perts though.



 


Edit - had a quick flick through and yes there are plenty of Scandi highs in there. Looks like a decent set of GEFS there.


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." — Jerome K. Jerome
Jiries
25 January 2021 18:01:13

Originally Posted by: Brian Gaze 


CMC looks very snowy at a quick glance.


https://www.theweatheroutlook.com/twodata/gem.aspx?run=12&charthour=180&chartname=ukpreciptyperatec&chartregion=uk&charttag=Precip%20type%20rate


 




Nice for my area if that happen again.

nsrobins
25 January 2021 18:02:10

Originally Posted by: Rob K 


GEFS mean suggests to me there may be a fair few Scandi high options. Haven't gone through the perts though.



 


Edit - had a quick flick through and yes there are plenty of Scandi highs in there. Looks like a decent set of GEFS there.



Agreed. No sooner than posting my increasing concern we weren’t going to get the sort of reaction I’d been expecting there’s a sudden uptick in substantial blocking to our North and NE this evening. Come on ECM - you know it makes sense!


 


Neil
Fareham, Hampshire 28m ASL (near estuary)
Stormchaser, Member TORRO
Rob K
25 January 2021 18:11:55

P1 is my pick of the evening, from a southern perspective.



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." — Jerome K. Jerome
Quantum
25 January 2021 18:17:19


ECM still going for that disruptive snow event thursday morning


 


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.
tallyho_83
25 January 2021 18:20:52

Meh! I knew the Op was a cold outlier but anyway - usually is the case if it looks too good to be true...?


However on a positive there are plenty of snow events for the south - just not BFTE and mostly transient snowfall events.


12z ENS - so far: - Also good to see a colder cluster of ENS from 3rd until 6th February - and on the 4th, 5th & 6th Feb - none of the ENS members go above 0'c or the above the 30 year mean. - Is this a sign of things to come? Or too early to see that this is a trend? - Certainly keeps us interested that's for sure.



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


DPower
25 January 2021 18:21:18

The 12z gfs and para both on the same theme with northern blocking in the mid to long term. The 12z gfs is a cracker of a run from t240 onwards and fits the expectations and strat profile that was showing up a couple of weeks back at 10mb. This would roughly give a downward trop response of about 4 weeks some two weeks or so longer than some (including myself hoped/expected). That is now irrelevant now though and should synoptics similar to that shown by the 12z gfs materialize we would be looking at a prolonged spell of deep cold similar if not colder than that of Feb91. This is what a fair few of us have been chasing since the SSW and seeing what the downwelling troposhere response could very well look like or even colder. 

Jiries
25 January 2021 18:21:19

Originally Posted by: Rob K 


P1 is my pick of the evening, from a southern perspective.




Beautiful chart and very normal for UK to get this sometimes each winter month.

Brian Gaze
25 January 2021 18:22:50

Interesting ECM later this week.



Brian Gaze
Berkhamsted
TWO Buzz - get the latest news and views 
"I'm not socialist, I know that. I don't believe in sharing my money." - Gary Numan
Jiries
25 January 2021 18:25:49

Originally Posted by: Brian Gaze 


Interesting ECM later this week.




Should not be a dry one as it look unsettled with NE flow and hope to give more SE areas some snow at last while here do very well from the wash streamers.

doctormog
25 January 2021 18:42:09

Originally Posted by: Brian Gaze 


Interesting ECM later this week.




More cold rain (possibly sleet) https://weather.us/model-charts/euro/united-kingdom/significant-weather/20210130-1200z.html 


General easterly muck seems to be the theme. Good for some more central and northern inland areas with a bit of altitude.


tallyho_83
25 January 2021 18:44:57

12z PARA, GEM, ICON, UKMO, ECM and NAVGEM are in agreement in some ways around +t120z:


Many have southerly tracking lows bringing in north easterly winds - the Operational seems like it is the milder outlier here:


PARA @ 120z:



GEM @ 120z



ICON @ 120z:



UKMO @ 120Z:



ECM @120z



NAVGEM @120z:



GFS Op and Control run seem to have a mind of it's own at that timeframe:


Op @ 120z



Control @ 120z:



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


Ally Pally Snowman
25 January 2021 18:47:35

ECM cant build the heights to our north enough so ends up rubbish. 


Bishop's Stortford 85m ASL.
tallyho_83
25 January 2021 18:51:43

The 12z ENS for Aberdeen look cold throughout the entire run as well as continued precipitation spikes - a recipe for snow maybe?



 


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


chrissyk
25 January 2021 18:56:13

Some definite interest for southerners this weekend. (I’m actually a northerner who lives down south!) 


And I’m sure this morning  I heard Carol Kirkwood mention a chance of snow in the south this weekend.


Chandlers Ford, South Hampshire. 27m asl
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