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

  • 06-09-2024 07:26PM
    #1
    Moderators, Science, Health & Environment Moderators Posts: 12,638 Mod ✭✭✭✭


    ------------------------------------------------------------------------

    Mod Note:

    This thread is for posting/discussing/analyzing FI CHARTS ONLY i.e. Charts in the unreliable time frame, generally +T120 onward for Autumn 2024.

    If your post does not specifically relate to an FI chart then it doesn't belong here - Off topic posts will be moved

    Thanks

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    Charts quite similar around midweek showing cooler but little rainfall then a big divergence between ECM and GFS as can be seen below with the ECM going back to warmer and more settled weather, currently showing up to the high teens touching 20C towards the end of the week and the GFS turning up the the LP systems, some vigorous, temp slightly below the ECM and very wet to boot. GEM quite similar to the ECM. So as ever have to see a few more runs before any confidence one way or the other , settled or unsettled and v wet.

    modez_20240911_1200_animation.gif modusa_20240911_1200_animation.gif modcan_20240911_1200_animation.gif modez_20240911_1200_animation (1).gif modusa_20240911_1200_animation (1).gif modcan_20240911_1200_animation (1).gif
    Post edited by Gonzo on


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Comments

  • Registered Users, Registered Users 2 Posts: 6,144 ✭✭✭Chris_5339762


    The met charts were showing up quite a bit of cold…. down to 4 or 5c at night in places towards the end of next week. Too early for that nonsense.



  • Registered Users, Registered Users 2 Posts: 7,430 ✭✭✭pauldry


    The weather app on my phone is consistently showing some good weather around Sept 18th onwards but until then dreadful. Here anyways. Heavy rain and showers and strong NW breeze. Cool too 13c to 16c.



  • Registered Users, Registered Users 2 Posts: 6,239 ✭✭✭Elmer Blooker


    ED94312B-AE19-48BB-AF70-092A47C7231A.png

    seaside and swimming weather if this comes off? please let a +120 chart get it right this time as we approach the equinox.



  • Moderators, Science, Health & Environment Moderators Posts: 12,638 Mod ✭✭✭✭Meteorite58


    Once we get the bits of rain out of the way over the weekend and maybe a part of Monday, ECM is looking very dry and settled with warm days possibly getting over 20c in parts and cooler nights with foggy mornings. GFS showing it relatively dry also with some good temperatures but HP drifting away towards the end of the run. GEM perhaps a bit more like the GFS.

    In all I would reckon a good chance of dry settled weather with some warm days for the time of year .

    ecmwf_z500_mslp_eu_fh120-240.gif

    gfs_mslp_wind_eu_fh120-240.gif

    gem_mslp_wind_eu_fh120-240.gif modez_20240916_1200_animation.gif
    Post edited by Meteorite58 on


  • Registered Users, Registered Users 2 Posts: 6,239 ✭✭✭Elmer Blooker


    F73AFA41-DF87-41E8-BF8F-7C74C75D2DFC.gif

    the forecast for the week ahead just now said ‘turning showery next weekend’ …. looks fine to me?



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  • Moderators, Science, Health & Environment Moderators Posts: 12,638 Mod ✭✭✭✭Meteorite58


    ECM and GFS showing a slack area of lower pressure moving up from the S or SE around the weekend with possible thunderstorms nudging close to the S or SE ,a long way off though, the HP might be a bit stubborn blocking it out. Currently any rainfall looking slack enough abd maintaining decent temps till about Sun or Mon.



  • Registered Users, Registered Users 2 Posts: 1,528 ✭✭✭Hooter23


    Potential for a storm or two starting around the last week of September possibly followed up by early cold in October...



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


    whissst!!! I’m going to Munich Friday week for Oktoberfest…. No storms thank you!



  • Registered Users, Registered Users 2 Posts: 6,239 ✭✭✭Elmer Blooker


    spot the difference lol

    0D39E979-0828-4E47-98A5-F43DD501AB04.gif EE65DA5B-E892-461D-8C76-D21C8D3B1E9C.png


  • Registered Users, Registered Users 2 Posts: 1,724 ✭✭✭typhoony


    GFS and ECM hinting at a cross-polar flow setup, that would be typical if we get it in Autumn instead of winter. Looks like it will continue to be a dry autumn



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


    I had a look at the beloved CFS a week or so ago and it had a very blocked regime all the way out to Christmas and a swing to more westerly jet stream driven after that. If the GFS is anything to go by then it is following that pattern through to the middle of October!



  • Moderators, Science, Health & Environment Moderators Posts: 12,638 Mod ✭✭✭✭Meteorite58


    Models in agreement of a cooling down next week possibly with a few frosty nights in parts as arctic sourced air moves down from the North but could turn milder and quite wet over the weekend with a return to SW'lys depending on the track of some LP systems.

    modez_20240927_1200_animation (1).gif

    modez_20240927_0600_animation.gif

    modez_20240927_1200_animation.gif


  • Registered Users, Registered Users 2 Posts: 1,528 ✭✭✭Hooter23


    Its looks like the cold comes first aŕound the end of next week then potential for alot of wind or even storms around October...but there is just as much chance of the warm settled weather we have now returning in October like we had last year...Anything from heat cold to storms in October potential for anything🤣



  • Moderators, Science, Health & Environment Moderators Posts: 12,638 Mod ✭✭✭✭Meteorite58


    Models have been showing an area of LP / depression on and off caught up on the fast Jet for next weekend ( Sun /Mon ) the last number of runs and are beginning to show something windy and very wet now the last couple of runs but all depending on track and good way off yet but worth noting to see if it develops or not into something.

    modez_20241001_0600_animation.gif

    modusa_20241001_0600_animation.gif

    modcan_20241001_0600_animation.gif

    xx_model-en-328-0_modgbr_2024092312_168_1642_149.png

    xx_model-en-328-0_modez_2024092312_162_1642_449.png


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


    Yes it's worth a watch alright. The ecm looks quite severe though other models less so! Certainly looks like a windy and wet period following on from some cold nights! Expect quite a few leaves down by this time next week



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


    image.png

    Hmmm



  • Moderators, Science, Health & Environment Moderators Posts: 12,638 Mod ✭✭✭✭Meteorite58


    Some of the models bringing the system a bit further South on Sun/ Mon, fairly wet looking , windy but in general not too strong on the current runs by most models a few look quite strong so a bit to go before a clearer picture unfolds.

    ecmwf_z500_mslp_eu_fh120-141.gif Untitled Image


  • Registered Users, Registered Users 2 Posts: 9,758 ✭✭✭weisses


    Looking at Windy (ECMWF) I am more worried about the system that follows, moving up from the Azores



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


    Both have now more or less vanished both on ecm and gfs! Another very poor week for model reliability...



  • Posts: 0 ✭✭ [Deleted User]


    I've noticed it myself. Very prone to change.

    Met Eireann announced their new higher resolution modelling is now operational. I wonder if this will improve matters.



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  • Registered Users, Registered Users 2 Posts: 9,276 ✭✭✭sdanseo


    Any word on whether (heh) output from this will appear on the usual weather sites in time? Metociel, Weather.US, WZ etc?



  • Registered Users, Registered Users 2 Posts: 6,239 ✭✭✭Elmer Blooker


    Trying the post some charts here but have given up, boards.ie is now a heap of s***e



  • Registered Users, Registered Users 2 Posts: 7,430 ✭✭✭pauldry


    It doesn't really matter what new model Met Eireann are using. Technology isn't the answer to the basic shy t they have been getting wrong. Though to be fair to them all the models are now wrong and I don't think a supercomputer will resolve much bar from maybe being able to detect storms sooner .

    Think I've posted in the wrong thread so just to say they next 7 days look very wet indeed with rainfall well above normal maybe flooding in places.

    England likely to see further deluge too



  • Registered Users, Registered Users 2 Posts: 1,724 ✭✭✭typhoony


    Not looking that wet for the next week, heavy rain for the south on Sunday but that's about it with a lot of dry weather next week, beyond that my take on it is for it to become quite humid with some tropical influence as the source of our weather will be from the SW with a decent fetch



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


    GFS and ECM both showing a very deep low heading our direction Thursday week. It's so far out that it's absolutely certain to change but the fact that both models are showing it with very similar timings make it a bit more interesting. Worth keeping an eye on.

    xx_model-en-328-0_modusa_2024093012_228_1642_149.png xx_model-en-328-0_modez_2024093012_228_1642_149.png


  • Moderators, Science, Health & Environment Moderators Posts: 12,638 Mod ✭✭✭✭Meteorite58


    Issac set to dissipate well West of Ireland around next weekend. Looks wet at times over the weekend but not excessive at this stage, quite possible a shot of warmer temperatures around Sat getting into the high teens and possible thunderstorms. Possibly a bit windy but not too much. The surfers will be watching the swells no doubt.

    Kirk which looks to rach Major Hurricans status and a very large one at that is currently showing up on the models to make it over towards us around the 10th, see discussion below from the National Hurricane Centre. Will be an interesting one to watch…..long ways off and could end up anywhere as yet but good opportunity to see how the models fare. It too would no doubt drag in warm moist air with it shooting up the temperatures…

    Just looking at the 850hPa temps also and that would make for a source of energy from the thermal gradient too.

    https://www.nhc.noaa.gov/text/refresh/MIATCDAT5%2Bshtml/301454.shtml?

    145445_5day_cone_no_line_and_wind (1).png

    xx_model-en-328-0_modez_2024093012_120_1642_308.png

    https://www.nhc.noaa.gov/text/refresh/MIATCDAT2%2Bshtml/301455.shtml?

    145743_5day_cone_no_line_and_wind.png

    AL12_2024093012_GEFS_large.png

    modez_20241009_1200_animation.gif xx_model-en-328-0_modez_2024093012_228_1642_308.png


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


    Yes quite a similar track to what Ophelia took though that storm stayed South for longer, heading towards Portugal and then North over Ireland. Time for things to change either way and certainly one to watch.

    Charts are looking good for coldies right now with heights over Greenland a dominant factor! Of course we've had a lot of these Autumn's lately only for it to go pear shaped in November. So for now just a watching brief.



  • Registered Users, Registered Users 2 Posts: 7,430 ✭✭✭pauldry


    It's been a cold year though. Think this low will come to the Southwest of us and then fill somewhat. But it's 10 days away so might be gone later runs.



  • Registered Users, Registered Users 2 Posts: 9,276 ✭✭✭sdanseo


    I'll just leave the 18Z GFS here.

    image.png


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  • Registered Users, Registered Users 2 Posts: 187 ✭✭Rain from the West


    A tropical cyclone off the NW coast of Spain at +318 hrs.

    Untitled Image


This discussion has been closed.
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