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RhHh

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Posts posted by RhHh

  1. 41 minutes ago, Jason T said:

    Well temps at 7c here now and rain. Very unfortunate we could not get the full effect of the ssw on this event. I guess being the uk, we just don't have the land mass like the states and Europe so we are open to many mobile patterns and not forgetting that all famous jet stream, our main driver. We are definitely overdue a sustained winter event maybe winter 23/24 will be the one. 

    We live in hope!

  2. 1 hour ago, ResonantChannelThunder said:

    I've got to admit, I've used that a couple of times when summer model runs show plume thunderstorms slamming into S UK! Now I know where I picked that up! 

    Suffice to say, I shan't be using it again! 😄

    Please feel free to carry on using it, just remember though that it's likely to curse the weather you're looking for!

    • Like 1
  3. 14 hours ago, A Face like Thunder said:

    I remember the 5th April 1989. I was trialling a group walk near my home in Surrey and came into Kingswood as the snow started, and by the time I got to Kingswood golf course, which I had to cross, it was a total whiteout and was actually quite scary, with absolutely no-one around to help. Philip Eden noted 18cm of lying snow at nearby Tadworth, which I can quite believe, and it was a memorable day for me although the snowfall of that day has been largely forgotten by others

    I can remember that well at Gatwick.  A Paramount Airlines aircraft almost came a cropper due to not having been deiced properly. Only just got airborne. 

    • Like 1
  4. 5 hours ago, Buzz said:

    And don't forget the almost inevitable and incredibly annoying use of the word BOOM! ...........

    Overall though, anyone wanting rain and milder weather should be happy with what's largely being shown for the end of the week (at the moment at least).

    I find it even more annoying when they say BANK!

  5. 20 minutes ago, DAVE_ALLEN said:

    Latest MO thinking is of the Atlantic low sliding ESE.  Skirts with Devon and Cornwall before edging away into the Channel. 
     

    Areas just north and east of a line from Bristol to Bournemouth could see a prolonged dumping with the snow possibly flirting with M4 before it moves away south.  
     

    Parts of Hampshire and Sussex could see very high snowfall totals and strong winds too. 

    FullSizeRender.MOV

    What date is this for please Dave?

    • Like 1
  6. 17 minutes ago, Cambrian said:

    Focusing on the more reliable and the northerly for now then….which we will hopefully all enjoy - 

    No intention to criticise here (not in my nature in any case😇) and I think the Met Office do a very difficult public-facing job brilliantly. I think they’ve got it broadly right with the forthcoming northerly pattern and it’s longevity, and with their own model too. 

    However, there is one aspect of their narrative in which they continually get the emphasis wrong and that is the impression that they give in the run-up to wintry northerly spells that the south and west are likely to stay largely dry, frequently understating the scope for significant snowfall as a result. It gives an incorrect impression. In straightforward showery setups, a wiser term might be ‘away from north facing coasts’ or ‘away from places exposed to the northerly wind’.

    Having said that, we live well inland and with the mountains of North Wales to our north and northwest and invariably get appreciable snow off a northerly (even a true northerly, let alone a north-northwesterly) that has set in for a few days. It happens time and time again. Pembrokeshire has its famous dangler, the same line often bringing Cornwall in to the frame for showers, not necessarily wintry, but certainly not dry. Troughs often form in the Bristol Channel that affect Devon and Somerset.

    More substantial snowfall can occur from frontal systems, and small lows developing in the flow that form their own circulation, both of which back the wind northwesterly or westerly before they land in any case, with a lot of precipitation driven in from that direction, only straightening to a northerly again at the back edge when clearing.

    From the current models:

    12z GFS day 4-6 (small low pressure system, widespread snow)

    CDB84A85-FE5B-413B-AE68-6F47A96D4EC7.thumb.gif.b59ee28cf00d28dceed861450cade4e0.gif B7710068-EA4B-42EC-B24B-D92D294E0634.thumb.gif.420743e6cbad83139325ad72f39dcf7a.gif D8AF7702-D3A3-49B7-A5C5-E8289BF74515.thumb.gif.72ee66049b23a73a0336d989af97c496.gif

    12z GEM day 4-5 (troughing to North Sea low, widespread snow)

    F44A08F2-7F1F-4AEB-A1A6-A5B9587ECA47.thumb.gif.5d98d3b6780922d8c568479303af3a46.gif 7CC76E96-E078-4F6B-9CD3-BC49CF4CD509.thumb.gif.0eda31f1b815c95648f328e96dfc5d9f.gif 69CEBBF9-E049-4BAE-83B6-781E0707DA82.thumb.gif.6387ac20219fdd3a3d17999a5d870d7d.gif

    12z UKMO total precipitation to day 6 (precipitation generally similar across most areas, away from northern Scotland, and parts of the south coasts of Ireland and England).

    Could contain: Chart, Plot, Nature, Outdoors, Sea, Water

    A northwesterly brings the Cheshire gap into play, and showers and outbreaks of snow heading down there can bring snow to a large swathe of England, down into the Home Counties. In March, there’s more over-land convection too, pepping all this up further. I’m not saying that places further north don’t get more precipitation and lying snow than further south, but there’s plenty of scope for many western and southern areas to see a good bit of snow off a northerly setup. 

    A northeasterly is a very different matter. As is those situations with a big west-east pressure difference, with a ridge building in. 

    But with overtly cyclonic-derived northerlies, we get plenty of precipitation in the west and southwest, and when cold enough, plenty of snow that can lie for several days anywhere inland or with half reasonable altitude. And often in March too. 

    That model shows zero snow for the entire South East. 

    • Like 1
  7. 8 minutes ago, LRD said:

    Thanks. Those pressure mean charts are more helpful than anomalies IMO. Shows the centre of the 'high' that was on the anomaly chart a bit further south. Over north Scotland as opposed to between Iceland and Norway. Might not look much but will give different surface conditions.

    Certainly getting colder but how cold remains to be seen

    Met office outlook gives 2 fingers to anything remotely wintry. 

    • Like 1
  8. 33 minutes ago, StingJet said:

    Understandably, just a regular gale for Scotland and the Northern Isles, where as packing a fair old punch when Otto hits Denmark, 975Mb as shown on the NAVGEM 12z for Friday eve ,  isobars as tight as a camel's ar*e in a sandstorm 

    Could contain: Plot, Chart, Nature, Outdoors

    Has the UK ever named a storm? It seems to me that it is left to the Spanish, French,  Portuguese, Irish and now the Danish. 

  9. 37 minutes ago, alexisj9 said:

    Another one sometime in march 2013, I remember a red warning from the met, but the whole thing stayed south. A week or so later another came, with another red warning, this one did hit, but people had ignored the warning thinking it was wrong again.

    That was March 11th 2013. We left Plumpton races near Brighton around 530pm in a blizzard, arrived home at 4am. Stuck on A23 as highways agency hadn't gritted. A great snowstorm which was fairly well forecast but if I recall had only really supposed to affect Kent and East Sussex. 

    • Like 1
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