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Gavin D
  • Gavin D
  • Advanced Member Topic Starter
21 November 2024 10:57:29


Storm Bert has been named and is forecast to bring heavy rain, strong winds and disruptive snow to parts of the UK through the weekend.
Rob K
21 November 2024 11:13:14
Warnings suggest "100-125mm of rain possible" over Dartmoor and up to 150mm in Wales... on top of several inches of lying/thawing snow in places.
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
Roger Parsons
21 November 2024 11:30:02

Warnings suggest "100-125mm of rain possible" over Dartmoor and up to 150mm in Wales... on top of several inches of lying/thawing snow in places.

Originally Posted by: Rob K 


Yes - it looks as if it might be a lively couple of days. Higher temps though, so mostly "wet wet wet".
https://www.metoffice.gov.uk/weather/warnings-and-advice/uk-warnings#?date=2024-11-24 

RogerP
West Lindsey district of Lincolnshire
Everything taken together, here in Lincolnshire are more good things than man could have had the conscience to ask.
William Cobbett, in his Rural Rides - c.1830
Gavin D
  • Gavin D
  • Advanced Member Topic Starter
21 November 2024 11:40:22
Amber snow warning issued for Storm Bert for the following areas

Central, Tayside & Fife

    Angus
    Perth and Kinross
    Stirling

Grampian

    Aberdeenshire

Highlands & Eilean Siar

    Highland

Strathclyde

    Argyll and Bute

https://www.metoffice.gov.uk/weather/warnings-and-advice/uk-warnings#?date=2024-11-23&id=a5f15067-4a4a-43f3-b4e6-a66aae73b008 
johncs2016
21 November 2024 11:48:30
Just yesterday, I posted a question on the MO thread about the possibility of this weekend's low pressure system being officially named as Storm Bert and now that I've done that, I'm not surprised in any way that this has now happened.

Furthermore, anyone who follows Mark Vogan's videos on YouTube will no doubt have seen some possible clues to this possibility.

Mark Vogan doesn't claim to be a professional meteorologist and he works merely as a lorry driver as his main occupation. Yet for someone who is therefore just a weather enthusiast just like me or the likes of Gavin P. (who is also equally just as knowledgeable when it comes to the weather, albeit for different reasons), his knowledge on the weather is very impressive, especially when it comes to the MJO which features quite a lot in his videos.

Mark Vogan has explained on many occasions that certain phases of the MJO (notably phases 7, 8 and 1) tend to favour colder weather here in the UK whilst other phases of the MJO (most notably phases 4 and 5) tend to favour milder weather here in the winter and according to his theory, he can get a rough prediction of what the weather pattern is likely to be at some time in the medium term future before any of that is even picked up by any of the latest models. What makes this even more remarkable is that these predictions then tend more often than not to be all that far away from what actually ends up happening.

According to Mark Vogan's theory about the MJO, phase 3 of the MJO tends to favour stormy weather and it just so happens that the last two named storms (Storm Lilian and Storm Ashley) both coincided with phase 3 of the MJO albeit not necessarily exactly as there is usual a time lag involved with that.

We have just been through phases 7, 8 and 1 of the MJO which is thought to have led to the current cold snap and now, we are coming into phase 3 of the MJO once again so it's a real coincidence that Storm Bert has now been named just as that has happened but Mark Vogan has been hinting for quite a while in his videos that this could lead to a stormy period of weather.

As for the impacts of that, the one positive thing is that we might at least actually get a bit of interesting weather here in Edinburgh at long last. The possibility of snow on the forward edge of this system has been hinted at even for here in Edinburgh but with this type of pattern changing weather system, that very rarely actually happens here especially in NW Edinburgh where I am as the air tends to be already starting to get a bit milder even before the precipitation actually arrives.

Nevertheless, this could get very interesting in many places as regards to any transitional snowfall before the milder air arrives in earnest.

The north of Edinburgh, usually always missing out on snow events which occur not just within the rest of Scotland or the UK, but also within the rest of Edinburgh.
NMA
  • NMA
  • Advanced Member
21 November 2024 12:08:55

Yes - it looks as if it might be a lively couple of days. Higher temps though, so mostly "wet wet wet".
https://www.metoffice.gov.uk/weather/warnings-and-advice/uk-warnings#?date=2024-11-24 

Originally Posted by: Roger Parsons 


It's "drip drip drip" as I type and thoroughly unpleasant.
Oh for an old school long fetch easterly (same sort low - HP blossoming over Norway as the low slides majestically SE) and not this half frozen nonsense.

Saturday looks interesting if you like lots of wind.
Vale of the Great Dairies
South Dorset
Elevation 60m 197ft
Rob K
21 November 2024 13:50:00

It's "drip drip drip" as I type and thoroughly unpleasant.
Oh for an old school long fetch easterly (same sort low - HP blossoming over Norway as the low slides majestically SE) and not this half frozen nonsense.

Saturday looks interesting if you like lots of wind.

Originally Posted by: NMA 


I think the rain looks more notable than the wind. 10mm+ per hour for an extended period over Dartmoor and S Wales.
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
NMA
  • NMA
  • Advanced Member
21 November 2024 14:15:57
I hope so.
Edit the wind that is not the rain.
Vale of the Great Dairies
South Dorset
Elevation 60m 197ft
Retron
21 November 2024 14:37:25

I hope so.
Edit the wind that is not the rain.

Originally Posted by: NMA 


I'm still surprised the MetO hasn't issued any wind warnings - while the speeds aren't off the scale, 36 hours of 50+ gusts (in e.g. Folkestone) will cause all sorts of issues - plenty of trees down, I expect. It's not the strength as much as the very unusual longevity...
Leysdown, north Kent
scillydave
21 November 2024 16:15:18
Flooding could be a real problem in the next 24 / 48hrs despite the dry November so far. Rainfall totals over Dartmoor for example forecast to be 150mm - that added to 20mm or so of snow melt could well cause issues especially if the ground is frozen.
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.
Rob K
21 November 2024 16:42:35
WRF has over 300mm of rain over Dartmoor in the next 80 hours. In fact almost all of that falling in the space of 30 hours. That does seem to be at the extreme end of things though.
https://modeles16.meteociel.fr/modeles/wrfnmm/runs/2024112112/nmm-25-72-0.png?21-16 

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
doctormog
21 November 2024 19:12:38

I'm still surprised the MetO hasn't issued any wind warnings - while the speeds aren't off the scale, 36 hours of 50+ gusts (in e.g. Folkestone) will cause all sorts of issues - plenty of trees down, I expect. It's not the strength as much as the very unusual longevity...

Originally Posted by: Retron 


There’s a wind warning for many northern parts in Saturday (including here). 

https://www.metoffice.gov.uk/weather/warnings-and-advice/uk-warnings#?date=2024-11-23&id=4cea252d-950f-4ae7-948a-c4f7b91852d3 


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