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FI Charts ( T120+ onwards) Autumn 2024 **READ MOD NOTE IN FIRST

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Comments

  • Registered Users, Registered Users 2 Posts: 3,287 ✭✭✭Dazler97


    I hope models are still saying yes to colder weather for next week but I'd say it's still 60/40 probably isn't set in stone yet



  • Registered Users, Registered Users 2 Posts: 390 ✭✭almostthere12




  • Registered Users, Registered Users 2 Posts: 1,539 ✭✭✭esposito


    The ECM 0Z keeps the HP over Greenland into next weekend, prolonging the cold for us. 850hPa temps could be better but it is still November.

    IMG_2133.gif

    The GEM is similar to the ECM.

    The GFS brings us milder weather with a storm around 25th/26th Nov.



  • Moderators, Science, Health & Environment Moderators Posts: 17,402 Mod ✭✭✭✭Gonzo


    I think of all the models the GFS has been the most accurate predicting next weeks weather or at least the start of next week. the GFS was the first to show up the milder shortwaves for Monday and early Tuesday and since then the rest of the models followed. Tuesday to Friday looks cold on all models with most turning milder again into next weekend. The ECM wants to prolong the cold snap past next Friday and into next weekend.



  • Registered Users, Registered Users 2 Posts: 1,540 ✭✭✭WolfeEire
    Clare (430ft asl)


    Met Éireann latest

    image.png

    www.weatheire.com



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  • Registered Users, Registered Users 2 Posts: 3,384 ✭✭✭JanuarySnowstor


    Their last update was some joke!! None of the lrfs saw next week's cold spell. They should get rid of them



  • Registered Users, Registered Users 2 Posts: 17,604 ✭✭✭✭nacho libre


    Well they do cover themselves by saying increasing uncertainty and confidence is low by week 3 and 4. I think they should just keep the outlook to two weeks at most.



  • Registered Users, Registered Users 2 Posts: 1,540 ✭✭✭WolfeEire
    Clare (430ft asl)


    Whilst a return to milder weather next weekend is looking increasingly likely, there remains some interesting charts showing a colder setup for the days to follow.

    GFS and GEM ensembles not supportive of same as of now, however.

    ECM1-240.gif gem-0-240.png J264-21.gif kma-0-204.png

    www.weatheire.com



  • Moderators, Science, Health & Environment Moderators Posts: 12,639 Mod ✭✭✭✭Meteorite58


    Yes ECM showing a milder intrusion over the weekend from a LP /storm moving close to Ireland and cold after that all the way out to +360hrs. GFS today showing less cold mid levels after the weekend. GEM very like the ECM out to the end of it's run to +240hrs

    Untitled Image


  • Moderators, Science, Health & Environment Moderators Posts: 17,402 Mod ✭✭✭✭Gonzo


    some very interesting model runs overnight and early this morning. The overall trend is we could be lining up a second cold snap after a brief mild interruption next weekend. However this mornings ECM is very much in the colder end of the range with a huge amount of scatter including alot of members that stay very mild from next weekend.

    Untitled Image

    Overall great uncertainty from Friday onwards, the models are not convinced of the big warm up next weekend either.



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  • Moderators, Science, Health & Environment Moderators Posts: 12,639 Mod ✭✭✭✭Meteorite58


    ECM, GEM and UKMO showing a deep depression next Saturday, GFS is not showing it but a later one on Sunday. One to keep an eye on .

    modez_20241124_1200_animation.gif

    modez_20241124_1200_animation (1).gif

    xx_model-en-329-0_modcan_2024111712_171_1642_149 (1).png xx_model-en-329-0_modgbr_2024111712_156_1642_149.png xx_model-en-329-0_modgbr_2024111712_156_949_149.png

    xx_model-en-329-0_modusa_2024111712_177_1642_149.png


  • Moderators, Science, Health & Environment Moderators Posts: 12,639 Mod ✭✭✭✭Meteorite58


    GFS18Z has an area of LP near us now too on Sat.

    Edit: In fact the GFS becomes very disturbed over the weekend and early days of the next week.

    xx_model-en-329-0_modusa_2024111718_147_1642_149.png
    Post edited by Meteorite58 on


  • Registered Users, Registered Users 2 Posts: 2,137 ✭✭✭adocholiday


    That storm on Saturday looks very wet on this morning's ECM and GFS. If it verifies it'll be orange level rain warnings for much of the South and East. The ECM also showing a few different spells of high winds throughout the weekend keeping us windy through to Monday. It will be interesting to watch this develop throughout the week.



  • Registered Users, Registered Users 2 Posts: 2,194 ✭✭✭John.Icy


    Fascinating GFS 12z. A playout of many of the signs and calls that we shortly need to start looking towards Scandi…

    There's has been some rogue signs in the far reaches of FI the last few days, but this is the most blatant by far.

    Some of the height anomalies in recent days also have been signaling heights towards Scandi.

    Untitled Image


  • Moderators, Science, Health & Environment Moderators Posts: 17,402 Mod ✭✭✭✭Gonzo


    Maybe it's to do with the fact that both the NAO and AO forecasts are unsure if we go back to positive territory or stay in negative territory for the remainder of November. So much uncertainty in the models beyond Saturday, anything could pop up within FI over the next few days.



  • Registered Users, Registered Users 2 Posts: 2,194 ✭✭✭John.Icy


    Weakens by +144 as it moves to our north, but christ. An absolute doozy of a storm on the ECM tonight.

    Has been mentioned in the event thread already and needs watching.

    image.png


  • Moderators, Science, Health & Environment Moderators Posts: 17,402 Mod ✭✭✭✭Gonzo




  • Registered Users, Registered Users 2 Posts: 2,419 ✭✭✭Cork2021




  • Registered Users, Registered Users 2 Posts: 2,194 ✭✭✭John.Icy


    Not for now I'd say.

    UKMO and GEM don't really make much of it.

    GFS does spin up a powerful storm but quickly weakens it before it makes inroads towards us.

    Sit and see for another day or two.

    We don't want to upset our resident event thread watches who are utterly aghast at us making threads to discuss the weather, on a weather forum.



  • Moderators, Science, Health & Environment Moderators Posts: 12,639 Mod ✭✭✭✭Meteorite58


    MT mentioned earlier about maybe starting a thread after the 12Z, will message him to see if he will do the honours, ECM is fairly strong as is GFS and ACCESS G but GEM and UKMO less so , a degree of uncertainty but definitely needs an eye kept on it. Just under 120 hrs too.



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  • Registered Users, Registered Users 2 Posts: 2,419 ✭✭✭Cork2021




  • Registered Users, Registered Users 2 Posts: 2,830 ✭✭✭.Donegal.


    I thought about making a windstorm warning watch thread for autumn/winter season. Then whenever a storm is named a new thread could be made for that. Not sure if it’s a good idea though, if anyone does and wants to make it go ahead.



  • Registered Users, Registered Users 2 Posts: 3,287 ✭✭✭Dazler97


    IS their a storm thread I can't find it ,but I'm sure there will be one soon I'd say by Wednesday at the latest, storm looks fairly nasty at 940mb we haven't seen that type of pressure in years



  • Registered Users, Registered Users 2 Posts: 2,933 ✭✭✭sparrowcar


    Just have a quick read of the previous posts on this thread. One being set up shortly.



  • Registered Users, Registered Users 2 Posts: 3,287 ✭✭✭Dazler97




  • Registered Users, Registered Users 2 Posts: 3,384 ✭✭✭JanuarySnowstor


    JMA's take on Saturdays rainfall. Just highlighting it really because all models agree on torrential rain Sat morning

    image.png


  • Registered Users, Registered Users 2 Posts: 2,830 ✭✭✭.Donegal.


    UKMO T120

    image.gif

    24 hours later it has weakened

    image.gif

    GFS T120

    image.png

    T144

    image.png


  • Registered Users, Registered Users 2 Posts: 2,830 ✭✭✭.Donegal.


    ECM T120 exceptionally deep

    image.gif image.png

    Below comparison for same time yesterday’s run. It’s 7mb deeper today

    image.png


  • Registered Users, Registered Users 2 Posts: 637 ✭✭✭Robwindstorm


    Uk model nearly positioning the storm in the same location at T120 as well. There will be some sea's of the the west and north coasts. The position of this storm will probably be nailed down as early as this time tomorrow as it's a very big system with a large windfield. The snow threat (treat) will have to be played out first before this grabs attention.



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  • Registered Users, Registered Users 2 Posts: 2,137 ✭✭✭adocholiday


    I think the rain with this one is going to be more impactful than the wind for a lot of people. Most models showing big totals in places to fall within a few hours. UKMO with the highest volumes so far and most of it falling within 12 hours. I expect flooding will be a problem with this system.

    xx_model-en-328-0_modgbr_2024111912_108_949_63.png


This discussion has been closed.
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