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Current Weather indications

  • 24-11-2004 12:11am
    #1
    Registered Users, Registered Users 2 Posts: 12,780 ✭✭✭✭


    Just To tell you all interesting signs towards cold
    weather next week will post more on my site tomorrow.

    Currently it looks like a Cool Spell at the weekend
    with HeavyRain Hail and Sleet showers driven in
    on a Fresh Northwest Wind after that Look
    East :D;):)

    Nothing is at all certain.. I'll Know more tomorrow ;)


«13456

Comments

  • Posts: 0 [Deleted User]


    Ok
    I've split this post as a new thread off the rain or shine thread.
    The latter is for posts on current weather conditions and is used as a log.


    Ye can even talk of snow in june here :D


  • Registered Users, Registered Users 2 Posts: 12,780 ✭✭✭✭ninebeanrows


    Thanks Earthman But I aint predicting
    snow this weekend just to let you all know ;):p

    I am though predicting a cool fresh weekend
    with some wintry showers countrywide
    on Sunday and Monday. A Very Active
    Cold Front will push south on Saturday with
    a steep temperature gradient and heavy rain
    introducing much cooler conditions.

    Then Things are expected to stay on the cool
    side until about December 4th and then
    Its upto the Gods ;)


  • Registered Users, Registered Users 2 Posts: 12,780 ✭✭✭✭ninebeanrows


    Cool...
    Over the coming Days the weather Across the Country Look like turning very cool with Wintry Showers for many areas in Ireland and the UK. Things will start to turn during Saturday as a Cold Front moves south across the Country Bringing Heavy Rain and a sharp drop in Temperatures. Sunday Indeed looks like being very cool with maximum temperatures in Dublin of around 6c. The Cool Theme stays with us through the rest of next week with temperatures between Sunday and Thursday not expected to exceed 7c in Dublin and very similar elsewhere. Rain will move in from the west late Monday Heralding More unsettled and cool weather with Heavy wintry showers associated with a slack depression over Ulster. This Depression will stay with use through the rest of the week and leave things remaining cool. Any wintry showers will likely fall as Rain, Hail or sleet but Ground above 500m Could see falls of snow. Looking even further ahead things remain uncertain with two scenarios in question 1) Things will turn unsettled from the west 2) A Scandanavian High will dominate and Easterly winds will take hold. It Looks at the moment that Scenario 1 WIll come off but with A number of models backing the development of a Easterly Dominated Regime.

    Interesting Times Ahead...


    Taken From My Site


  • Closed Accounts Posts: 3,643 ✭✭✭magpie


    Paddy Power are offering 6-1 against snow on Christmas Day (registered at Dublin Airport).

    Worth a flutter?


  • Registered Users, Registered Users 2 Posts: 8,913 ✭✭✭Danno


    Baah,

    Birr, Clones or Knock should be used, we all know that Dublin does not get snow!


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  • Registered Users, Registered Users 2 Posts: 12,780 ✭✭✭✭ninebeanrows


    Hi All :D My Winter Forecast is now available:
    Please Comment on it in the Thread ;)

    Available here also :)Winter Forecast 2004-2005


    Official Weathercheck Winter Forecast 2005


    Overall the period of December through February looks like being about 2c above average. The Bartlett High will be overly persistent and will result in a very disappointing winter period with few cold wintry periods. It will be a non-descript winter with very mild conditions and also various stormy periods. Cold Spells will be very limited infact they will be limited to 3 or 4 short periods. Very settled interludes will also be prevalent with the ever near European High Pressure.

    Notable Periods:


    * 25th - 02nd January - Possibly the only wintry period of the winter with widespread snow for a number of areas and hard frosts. The cold spell which will be brought on by Northerly Winds and will last no more than 5 days.

    * Mid January - Storm Possibilities as a strong jet introduces very unstable westerly winds, Expect Stormy weather around this period.

    * January 17th -23rd - This could well be the last cold spell of the winter, Northerly winds will affect all areas for 3-4 Days with widespread snow possible but certainly not assured.

    * February - The dreaded Bartlett High Returns late January to ensure a mild but settled February period.

    How are our Forecasts Made?
    Weathercheck use various sources when providing their winter forecast. Firstly for the short term we use GFS Ensembles, this gives a rough idea what is likely to happen over the first 20 days of the forecast. In the Medium term we peak at Meto and NCEP outputs to see what the consensus is, we also take into account the NAO which we expect to be neutral this year. But Weathercheck mainly use one specific source and that is the GSM or ECPC Experimental Forecast Model. Weathercheck feel satisfied that this model scores a 60% success rate in Forecasting out to 8 Weeks and a 50% Success rate in Forecasting out to 16 Weeks. This gives us a virtual chance to look into the future and over the coming years the accuracy of this model is expected to grow.


    Monthly Rundown:


    December: CET near Average (+0.5c)
    A Month of various divisions. Cold Settled weather to begin the month will be displaced by rather unsettled weather by around December 5th. Mild, Wet and Windy weather will be dominate with stormy weather for the north possible around December 8th -10th. A cooler unsettled period around December 13th will result in possible wintry showers over Scotland. More Unsettled and mild conditions will move in soon after bringing heavy rain and strong winds. Cooler weather will return for a time with possible wintry showers for the north before more mild and wet weather arrives around December 18th. Much more settled weather will arrive around the Christmas Period (21st December) and will bring with it frosty and cold weather until around Christmas Day when Much Colder weather conditions will move down from the north bringing the highest possibility of widespread snow this winter. Things will be at there height around December 27th with widespread snow is more than possible. Blizzards will be possible as a deep artic plunge sweeps the country for a few days. Things will settle down towards and into the New Year Bringing much more Settled but Frosty Weather.

    January: CET Well above average (+1.5c)
    Extremely Cold weather will notably push through central Europe as Britain turns more settled and much less cold as the Atlantic Jet stream steams into action. Mild and much more unsettled weather will push in by January 3rd or 4th bringing windy and very wet conditions to all. The mild weather will not end there and around January 10th Weathercheck are watching the possibility of a very stormy period with possible structural damage due to a very wild Atlantic. Not to mention the ever growing Bartlett High which is expected to be manifesting over Europe. But this will soon be displaced a Strong Northerly Block forms allowing colder weather to move south around January 15th. Snow showers will affect Northern and Western areas as a short northerly blast sets into Britain. By January 18th Unsettled and wet weather will again rage in from the Atlantic bringing strong gales and heavy rain. A short settled spell around the 22nd will be again replaced by much milder, wet and windy weather late in the month. Meanwhile the Bartlett High will raging calm over Europe as Central Europe basks in Glorious winter weather but as Eastern Europe freezes.

    February: CET (+2.5c)
    The Month of the Bartlett High! A predominately settled and mild month with few if any cold spells. A strong European High to begin the month will drag up very mild and wet weather from the South-West
    Bringing heavy bands of rain and unseasonal temperatures possibly in their mid teens! Some cooler weather will move in for a time before more settled weather pushes in around February 10th bringing more settled and possibly frosty weather. Around February 12th there is the possibility of some colder weather making an appearance for a time, with the possibility of snow showers for a few places. The High Pressure will retrogress back into Europe by Mid February pumping up more mild, moist and windy weather. Rainfall totals are expected to be very high across the North and West but below average in the Southeast. Cooler weather will push in for a time with squally wintry showers and strong west-northwest winds likely around February 24th. A Milder and much more unsettled westerly regime will return again by late month with more rain and winds. By the very end of the month colder weather may push down from the north bringing some more wintry weather.

    Conclusion

    An above average winter season with the Atlantic Jet remaining strong for prolonged periods. The dominance of a European High Pressure and strong Jet will prevent any particularly cold weather from affecting the UK and Ireland for any prolonged periods. Any cold weather will be limited to short spells of no more than 5 days. Eastern and South-eastern Europe can expect a very cold winter with prolonged freezing conditions. Greece again will suffer freakish weather conditions. Although the winter will be very mild overall, short spells of severe cold weather will of course affect Ireland at times, possibly bringing widespread snow. Nonetheless Weathercheck do not expect any prolonged spells of cold to affect the UK at any time. December will be the coldest month with severe cold likely to last for 5 days at the end of the month which will ensure that December will turn out average or just above (temperature wise). January will be a mixed month with short cold spells likely, Settled spells and also prolonged mild and unsettled weather. February is expected to be exceptionally mild with the dominance of a large area of High Pressure over Mainland Europe ensuring mild and moist weather for the UK and Ireland.

    Note:
    The Forecast is Likely to be incorrect at intervals but we expect the outline forecast to be pretty accurate. Remember things may well change and so we promise that we will tell you of any possible changes to the Forecast.
    :)

    Winter Forecast 2004-2005


  • Registered Users, Registered Users 2 Posts: 12,780 ✭✭✭✭ninebeanrows


    Magpie its worth a fiver but dont bank on it :)

    Cold weather is likely to push in around that period
    but may arrive to late to get you any winnings :o

    If Christmas was on December 28th I'd
    be putting 50Euro on it now :(;)


  • Registered Users, Registered Users 2 Posts: 12,780 ✭✭✭✭ninebeanrows


    Feel Free to Discuss the Forecast Below :);)


  • Registered Users, Registered Users 2 Posts: 8,913 ✭✭✭Danno


    DECEMBER
    WEEK 1 - This will be a mixed month in terms of weather. Some settled weather at the end of November may start off the month, but not before long the Atlantic will kick in with wet, mild and windy weather.
    WEEK 2 - Low pressure to the SE of Iceland will feed in showers, maybe cold enough for hail and sleet in the NW. High pressure building from the SW.
    WEEK 3 - Fine and settled, mild enough with temps perhaps into the low teens. Later in the week, pressure will slip to the NE and build.
    WEEK 4 - East to NE winds will bring in cloudy cold weather, perhaps some sleet showers along the E coast. Low pressure will start to push in from the W by the end of the week.

    JANUARY
    WEEK 1 - Perhaps a white new years in a few spots as cold weather in the E meets milder weather pushing in from the W. However, the mild weather wins out and deep low pressure sweeps in from the W or SW. This could be a potential storm.
    WEEK 2 - At the start, very mild for a time with 17-20c recorded somewhere and mild S winds dominate for a day or two. High pressure builds later in the peroid from the east. This will eventually bring very cold air to Ireland from Russia.
    WEEK 3 - Cloud abound at the start, very cold with 0c daily max. Snow flurries will spread in from the Irish sea. Later in the week a low pressure forms in Biscay and delivers substantial snow to the south and southeast. SW England and Wales are affected too as the low tracks up the Irish sea.
    WEEK 4 - Still cold as low pressure feeds in NW. High pressure builds in mid atlantic. Lots of wintry showers, Time for the NW and W to share in the snow!

    FEBRUARY
    WEEK 1 - Still cold, though more settled. Snow will have laid on hills for over 2 weeks at this stage.
    WEEK 2 - High pressure firmly over Ireland, probably the coldest period of the winter with SEVERE frosts overnight.
    WEEK 3 - High pressure to the NW will allow a NE to develop bringing snow showers to all but the SW and far W. Very cold.
    WEEK 4 - High pressure will drift to the S allowing mild weather to usher in thawing any snow, and bringing us into spring.

    So there is my forecast. ENJOY!


  • Registered Users, Registered Users 2 Posts: 12,780 ✭✭✭✭ninebeanrows


    Its been quite accurate so far Danno
    hopefully it will stay that way :D;)

    Oh ye did ye post mine on TWO??? ;):)


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  • Registered Users, Registered Users 2 Posts: 12,780 ✭✭✭✭ninebeanrows


    Early Signs are indicating at a cold Christmas Period :)

    Signs are appearing that a strong atlantic Block
    will feed down very cold air around Christmas :)

    Very early as of yet but the chances of a white
    Christmas are growing by the day :)

    I told you first :D;)


  • Registered Users, Registered Users 2 Posts: 12,780 ✭✭✭✭ninebeanrows


    People i think you should start getting interested in this :D

    Ever dreamt of a white Christmas??

    Well really things are shaping up excellantly
    for the Christmas period with at least 1 or 2
    cold spells with snow possibilities to come in
    and around the fesitivities :D

    I'll update you later with some charts from
    whats set to be a spectacular 12z run :)

    Watch out around the 20-25th of December things
    are set to be very interesting indeed :p

    The average line of all runs is marked in black and
    the ed line is the run available to the public

    And also even before that around December 17th
    a sharp cold spell is possible!

    Heres a chart showing upper air temperatures :)
    Notice the averagesn tumble. Values of around
    -5c in this data gives the possiblity of snow
    to low level, This chart shows the 12 GFS model
    runs at 6z or 1300pm Today



    03969_06.gif?59d244a18a7b5b2e385eec41049ab335;)


  • Posts: 0 [Deleted User]


    All snow and winter weather talk merged and the tread has been stickified.
    Please post any views on other posts in this thread here.
    New threads on this subject may only be created for specefic Winter weather events when they have happened and not ahead of when anyone thinks they are going to happen.

    I will update the charter to reflect this new law.


  • Registered Users, Registered Users 2 Posts: 12,780 ✭✭✭✭ninebeanrows


    Dont have much time but
    a cold shot is going to push in on the run up
    to Christmas with very cold weather likely from
    Saturday and really digging around the middle
    of next week and towards Christmas, i expect
    snow on the ground in a number of areeas come
    Christmas week and possibly yes possibly on Christmas
    Day. All areas should brace for a very cold run upto
    Christmas with passing snow showers likely to all
    levels.

    Loads of details Tomorrow!


  • Registered Users, Registered Users 2 Posts: 12,780 ✭✭✭✭ninebeanrows


    Massive Cold Shot set to dig south in time for the Festivities..

    As we approach Christmas Week and the Weekend a drastic drop
    in temperature will take place. Already we are seeing 850hpa Slowly
    dropping away at the moment they are at +5c but by the Weekend
    they will have nose dived to -5c!

    The First Cold shot will arrive this Saturday bringing a drastic drop
    in temperature than we have seen of late. At the moment eyes are
    firmly fixed on Saturday when a secondary low pressure spins of an
    unstable and cold northwesterly airflow as this interacts with
    the cold air, wintry precipiatation is possible north of the Midlands
    and Snowfall above 500m looks likely!

    The unstable air will move away by Sunday to leave a cold frosty
    and Bright day, Monday is set to continue that trend.

    A short milder section is likely through Tuesday before
    another cold shot is likely by Wednesday and into Thursday.
    By this stage it should be cold enough for wintry showers
    nationwide.

    Another milder shot will push in on Thursday to bring wet and mild
    conditions.

    By Midday Friday much colder weather will build to the north and
    through Saturday, yes Christmas Day!! This will swing south and a strong
    and gale force North, Nortwesterly wind will develop with blustery and
    possibly prolonges sleet and snow showers for many parts by
    Stephens Day this theme is set to continue but by the 27th things
    look like settling down but staying cold and frosty!!

    Overall the liklihood of a White Christmas is amazingly high!!
    I as an amateur meteorologist would put the risk for the
    following locations at:

    Belfast: 70%
    Derry: 70%
    Knock: 70%
    Kerry: 40%
    Cork: 30%
    Athlone: 60%
    Rosslare: 40%
    Dublin: 50 - 55%

    Overall an amazingly high likelihood of a white Christmas.

    Im putting my bet on a white Christmas tonight at 6-1 as
    its a fantastic price. Remember a white Christmas is deemed
    as a flake of snow being recorded at a particular official
    weather station that you have predicted it to fall in :)


  • Registered Users, Registered Users 2 Posts: 12,780 ✭✭✭✭ninebeanrows


    White Christmas still firmly ON!!

    I've put my 10 Euro on with 3 on Dublin
    3 on 1 inch at Dublin at 12-1!! a steal!!!

    Looking at the latest Model runs Blizzards
    could be widspread this Christmas and visiting
    those relatives may not be possible!!

    Stay upto date you might just wake up on the 25th
    with a your childhood dream outside!!

    Imagine big 4 feet drifts of snow with a blizzards,
    thats what would happen if a chart like this occured!!

    Rtavn2041.gif

    Also Great Patterns are now emerging that an Easterly Blast
    like the one from the 80's might be possible early in the new-year,
    notice the mass of High to the top right of that chart. That is called
    a Siberian High and it was the cause of many major Cold Winters!!

    I really am just reading the Models and yes they are
    totally unbelievable!!!


  • Registered Users, Registered Users 2 Posts: 12,780 ✭✭✭✭ninebeanrows


    Think this one needs a thread of its own!!
    Things are now looking very likely that Ireland will
    under a very strong and bitter northerly plunge come
    Christmas Day as a deep area of Low Pressure plants itself
    east of Scotland feeing down fronts of heavy snow across
    the country..!!!

    The Cold Spell looks set to only last for a short enough period.
    Things will be at a Height between 24-27th December.

    Overall risk of snow is very high

    As much as 75% in Donegal and 55% in Dublin

    http://weathercheck.net/whitechristmas1.mht

    To tell you the truth thiese odds are steadily growing!!


  • Registered Users, Registered Users 2 Posts: 4,838 ✭✭✭DapperGent


    Steady on.

    1.The picture for the 24th is completely uncertain, putting percentages on risk of snowfall is nothing more than idle speculation.

    2. There is already a thread for speculation.

    3. Your contribution is interesting and valid but please don't cross the line between contributing and using this board to promote your own site. That's not what it's for.

    Threads merged.


  • Registered Users, Registered Users 2 Posts: 12,780 ✭✭✭✭ninebeanrows


    Hi Dapper, i just had to post that link becuase i cant
    post that image :) I actually am not intending to
    promote my site just like telling all the Boards viewers
    what the story is :)

    And yes this Christmas is looking very interesting
    and those percentages are very true!! :)

    I'll try not to go out on a limb as much
    and thanks Dapper :)


  • Moderators, Science, Health & Environment Moderators Posts: 16,969 Mod ✭✭✭✭Gonzo


    It certainly feels cold enough for snow outside atm.. i couldnt believe how cold its gotten over past few hours, hasnt felt this cold in a long time


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  • Registered Users, Registered Users 2 Posts: 12,780 ✭✭✭✭ninebeanrows


    Hi Gonzo yes its quite cold outside now with 850hpa Temps reaching
    -5c across the north, there is a small possibilty (30%) that a front
    tomorrow as it hits cold air may turn to snow across the midlands.
    Ground above 500m have a much better probability probably near
    50%.

    As for Christmas, things are still going to plan with a sharp northerly
    plunge expected to arrive on Christmas eve and if things stay
    the same it will deliver blizzards in many locations come the big
    day...talk about timing!!!

    Talk about the chart of childrens dreams!!
    Rtavn1801.gif


  • Registered Users, Registered Users 2 Posts: 12,780 ✭✭✭✭ninebeanrows


    Tomorrows risk now looks higher as the MET have issued this forecast,
    Hey i aint mad after all!!!!
    Mostly dry and cold tonight, but rain in the West and South later. Mostly wet tomorrow with heavy falls of rain. and some falls of sleet or wet snow in some central and north midland areas. cold in many places but mild in the south.


  • Posts: 0 [Deleted User]


    HeHe It's been snowing here in vienna this evening , tiz nice and christmassy but Brrrrrr baby it's cold outside-they're expecting lots of it tomorrow they tell me which is going to make my drive down to Budapest interesting :D


  • Registered Users, Registered Users 2 Posts: 12,780 ✭✭✭✭ninebeanrows


    What you doing down that way!! :)

    I used to live around there when i was young
    in Slovakia, Bratislavia we made trips to Budapest
    and Vienna regularly that was in 94 though when
    things were soo cheap it was amazing.

    To buy an icecream in the park 2p, when
    buying chewing gum the poor souls sold them
    singly!!! When we lived there we were viewed
    as millionaires!!!..im afraid were not though!...


  • Registered Users, Registered Users 2 Posts: 12,780 ✭✭✭✭ninebeanrows


    I thought a few charts might quench the doubters!!!

    Christmas Morning
    rart_04122506_1800.gif?f4530f582c24e89c9a09a3710fd578e7

    Afternoon
    rart_04122512_1800.gif?43f140392ba128c1933acc4d7c8fd91b

    Oh ye also forgot to mention the snow arrives on Christmas eve Morning!!!
    rart_04122406_1800.gif?dffc2432e228b8818d147bb4ef12dd30

    And if you think that run is out on its own!!
    Amazingly at such range the runs are merged
    MT8_Dublin_ens.gif

    Although the 850hpa temps are not excpetionally Low the
    The 500/1000 gpdam is easily low enough for snow usually
    snow can fall at 528dam and with values of around
    520dam predicted in Dublin this situation really
    is looking extrodinarly sweet!!! :)


  • Registered Users, Registered Users 2 Posts: 8,806 ✭✭✭Lafortezza


    If you really want snow on Christmas day it can technically be arranged...


  • Registered Users, Registered Users 2 Posts: 32,136 ✭✭✭✭is_that_so


    Although the 850hpa temps are not excpetionally Low the 500/1000 gpdam is easily low enough for snow usually
    snow can fall at 528dam and with values of around
    520dam predicted in Dublin this situation really
    is looking extrodinarly sweet!!! :)
    That's only because you have money on it. :p but would be nice all the same


  • Posts: 0 [Deleted User]


    What you doing down that way!! :)

    Ah...just wandering around.
    The predicted snow didnt materialise here today with temps up around 6c(so last nights disappeared quickly today) but there was some down near the hungarian border and enough for me to be pelted with snowballs last night :D


  • Registered Users, Registered Users 2 Posts: 12,780 ✭✭✭✭ninebeanrows


    Christmas Week Forecast..........Cold!!

    O.K I thought for the good of boards i'd give a pretty detailed
    rundown on the weeks weather :) Before i begin. The weather this week
    is set to be very mixed milder and very windy weather will arrive midweek
    before much colder and possibly snowy weather around Christmas eve
    and Christmas day. All I'll say is that your childhood dreams have a very
    high possibility of coming off! :)

    The Week Ahead

    Monday:
    Rain will arrive in the west by 6am and quickly sweep east introducing
    slightly milder weather. The rain may turn to sleet or wet snow in places
    across the north and east for a time especially in mountanous areas.
    Showery and cool weather will arrive in the west in the wake of the
    rainband. Temperatures will begin below freezing in the north and east
    but will rise as the rainband moves through. Temperatures will range
    between 6-9c by late afternoon.

    Tuesday:
    Any showers will dy out by Tuesday morning and it will feel quite cold
    with perhaps a slight frost in the midlands to begin. It will be a bright, cool day in most areas with the odd shower in the far northeast. Temepratures will remain on the cold side with maxima between 5c in the midlands to 8c in the
    far southwest. Heavy rain will arrive in the northwest by evening and move
    across the country during the night. The rain will be very heavy in places
    with perhaps some localised flooding and waterlogging.

    Wednesday:
    Heavy rain will slip east and turn persistant and heavy. It will feel noticeably
    milder with temperatures widely reaching double figures. It will be very
    breezy in the west with perhaps localised gales. By late afternoon the rain
    will slowly move away from the east and it will turn dryer for a time. But
    drizzle and fog will set in towards dusk.

    Thursday:
    Very wet and very windy weather will push into the northwest and
    move southeast. Severe gales are likely in places with gusts in excess
    of 70mph likely in exposed areas. The glaes and heavy rain will
    make it feel very cold but temperatures are likely to reach double figures
    at times. The far north of Ulster can expect some severe weather as very
    heavy rain and extremely high winds affect the area. The rain will rapidly
    move east during the early afternoon and clear the east coast by mid afternoon. It will turn cooler from the west towards dark.

    Friday:
    Christmas Eve will be a day where almost every weather type will
    affect Ireland! To begin a rainband will move south through early
    morning introducing much cooler weather. The rain will very heavy
    in many areas. By mid afternoon a small low pressure will form
    on the strong northwesterly airstream and wrap very cold air
    around it. The rainbands associated with the low will push
    south through the afternoon and will turn to snow by evening
    several cm's of snow will accumalate in higher areas although
    lower level of the midlands, north and east can expect a
    few centimetres by evening. Later in the evening a bitter
    northwesterly airflow will develop bringing heavy snow showers
    to many areas with local blizzard conditions especially across
    the north and west where accumalations of more that 10cm's
    are more than likely.

    Christmas Day:
    A very cold and unsettled day with temperatures peaking
    in the southeast early in the day at around 3c. Bands
    of heavy snow showers will transfer from north to south
    delivering a White Christmas to the majority of Ireland.
    Strong northwesterly winds will mean that blizzard
    conditions are likely especially across High Ground. More than 10cm
    of snow will ly in many areas with road conditions expected to
    be extremely hazardous after the rain and snow from the previous
    day will freeze over. Christmas night will be very cold with
    temperatures down to -5c locally and with snow showers
    still affecting the nrth and east.

    After that:
    Milder weather is likely to arrive by midday on Stephen's day and
    a steady thaw will set in. Looking after that more
    unsettled weather is likely with milder and colder periods
    likely with strong atlantic blocking expected at times.

    Hope you like that anyway :) !!! I know its sort of unbelievable
    but the fact is that is what can be expected during the run up
    to christmas and on Christmas day :)

    I'd say Paddy Power will slash their odds on Monday :)

    I'll give you more updates through the week on the
    situation. The overally liklihood of a white Christmas
    is around 60% :)


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  • Posts: 0 [Deleted User]


    New thread merged into the existing one as I get the impression it's purpose is mainly to speculate on a white christmas and it's best to keep all these things together.


  • Registered Users, Registered Users 2 Posts: 12,780 ✭✭✭✭ninebeanrows


    I was just giving the weeks forecast :)
    The fact that its going to be white really has
    no bearing :)


  • Posts: 0 [Deleted User]


    I was just giving the weeks forecast :)
    The fact that its going to be white really has
    no bearing :)
    Theres a sticky for links to weather forecasts, you can put your website link there but please don't be posting weekly or daily forcasts here, thats not what we are about.We talk about weather here not forcast it or present others forecasts unless we are talking about specefic weather events that are actually happening and why they are happening or in the case of predicted seasonal events where a forcast is being discussed thats to be done in the thread provided for it.

    The purpose of this is to prevent clutter.


  • Registered Users, Registered Users 2 Posts: 12,780 ✭✭✭✭ninebeanrows


    Afternoon all some more stonking runs!!!!

    A white xmas is nearly certain for some part
    of Ireland!!!

    Were talking widspread bands of snow and possible blizzard
    conditions into Christmas day!!!!

    The timing is almost made for a fairytale!!
    Cold air will dig south through Christmas eve
    and get more intense. Bands of rain will move
    south throughout the day steadily turning to
    sleet and snow as we move into evening. By
    Nightime a band of snow is expected to move south
    delivering blizzard condtions to many!!

    I expect in excess of 20cm to be on the ground in
    the Northwest by Christmas morning and accumalations
    in many other areas. Areas most unlikely to see
    snow are the far south but even here it should be cold
    enough for snow!!!

    If you've ever seen a chart for Christmas day i bet you
    cant remember seeing one like this!! It is almost
    like a fairytale, someone wake me up im dreaming!!

    I heard the radio yesterday and some guy saying there was
    little chance of a white Christmas with the usual global warming
    tripe oh how wrong he is probably going to be. :)

    Ok open your eyes heres to the chart of dreams
    and to a white Christmas :)

    Rtavn1201.gif


  • Registered Users, Registered Users 2 Posts: 12,780 ✭✭✭✭ninebeanrows


    And just coming through a reasonably accurate chart for Christmas
    day but if your living on the tip of Kerry dont get disheartend
    the resolution is quite poor!! lol :)

    Midday Christmas
    rart_04122518_2012.gif


  • Posts: 0 [Deleted User]


    Areas most unlikely to see
    snow are the far south but even here it should be cold
    enough for snow!!!
    Ah I dunno about that weathercheck...
    Quite often with a feed of polar air from the north and northwest areas of the south and southwest see normal atlantic heavy shower activity which when cold enough falls as snow.This is what happened around Xmas 2000 when 5 or six inches fell in much of cork and kerry.
    That sort of activity is usually at its weakest on the East coast with the wind in the Northwest.
    I'd expect those places on the East coast by the seaside to be least at risk of much activity eg portmarnock :p


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  • Registered Users, Registered Users 2 Posts: 12,780 ✭✭✭✭ninebeanrows


    :D:D Ye know thats probably right :D:D :eek: :( !!

    Usually Norht Dublin does alright with a Northwesterly
    though due to the vast open lowlying North Midlands :)

    Usually in this neck of the woods a north westerly is better
    than a Norhtherly because showers have less chance of
    dying out!!

    Really though mate this setup is just amazing with some
    complications like troughs and or polar lows likely :p

    Looking at gpdam readings from the UKMO things are
    set to be very interesting

    Using the calculation here you can roughly work out the gpdam level :)

    ((1000mB - pressure mB)* 0.87) + (500mb Chart Dam reading) = GPDAM

    In Dublin for example levels on Christmas eve
    are 522 on Christmas day 517 and on Stephens day 522


    There just outstanding with any precipitation surely of snow
    and with the 500hpa pressure so dang low polar lows
    are a real threat :D Remember the lucky -40c barrier
    looks like being broken :D

    Overall one word sums it up amazing!! :D

    At 15 years old the only good snow i can remember was
    Late FEB 01' with around 15cm of lying snow and chaos
    in the city, this looks like it could be very similar or worse :D

    And lets not forget this is all set to occur on CHRISTMAS DAY!!!!! :eek: :D

    Oh god look at these will it snow predictions from Metcheck!!!
    Dublin - http://www.metcheck.com/winter/willitsnow.asp?lat=53&lon=-6&locationID=297
    Donegal -
    http://www.metcheck.com/winter/willitsnow.asp?lat=55&lon=-8&locationID=296

    Paddy get the shovel and stock up on the coal, its going to be a harsh
    Christmas!!!!!


  • Moderators, Science, Health & Environment Moderators Posts: 16,969 Mod ✭✭✭✭Gonzo


    what ive heard so far isnt too promising, we are indeed heading into some really cold weather over 2 days or so, but ive heard its gonna be the usually boring situation of the uk plastered with snow mainly the eastern half of england/scotland with the majority of ireland seeing cold conditons but wall to wall sunshine and a hard frost with the west coast of ireland seeing isolated light wintry showers...we'll see what happens im hoping weathercheck is right coz i havent seen proper snow in south meath in nearly 14 years... about 2 months ago i kept hearing reports of us being blizzard stuck for 2 months this winter...


  • Registered Users, Registered Users 2 Posts: 12,780 ✭✭✭✭ninebeanrows


    Its quite the opposite infact Gonzo unlike last year
    when low Pressures were fixed to the east of Britain
    in this upcoming cold spell the LP is fixed just to our north
    and will bring in plenty of precitation for all parts. Infact
    Eastern Britain will likely fair worst for snowfall on Christmas
    day. We are talking on another board about it being the
    West's turn to at last see some decent snowfall. :D

    Im expecting copious amount of snow for Western areas
    at least 20cm's for the 3 day period. Here in Dublin and Meath
    we can expect quite a decent fall on Christmas day itself
    with a band of snow expected to cross the country :D
    Unlike last year the source of air is very moist indeed
    for a cold airmass and will ensure plenty of snow showers
    and lets not forget the possibility of something else forming
    like a polar low!! :D

    Just heard the forecast on the radio and the Met are
    going for a White Christmas aswell as nearly all other
    weather industries you just cant say it wont be when
    you look at the charts!! :D


  • Registered Users, Registered Users 2 Posts: 6,327 ✭✭✭highdef


    Well - Looking at the current synoptics, do you reckon there is a good chance of a polar low crossing down over Ireland at Christmas? With a NW wind, a polar low really is important for any real amount of precipataion (SNOW!!!) in the sheltered east.


  • Posts: 0 [Deleted User]


    Well with four days to go... the likes of the Beeb are being cagey.
    I'm expecting a few flurries down here where I am but nothing sticking,it would have to be a serious system in a north west wind to do anything much to the southeast of the wicklow mountains,nobody is being certain enough on something like that happening at the moment , all that is certain is that the air will be cold enough for the white stuff especially on Xmas day and the 26th

    We only get significant snow in the East when its cold enough and theres an East or northeast wind with pressure low enough.
    It's a variation of what they call in the States and Ontario Canada "lake efffect snow" except obviously never as severe.
    The cold air plunges over the relatively warm Irish sea and showers build.

    An extreme version of this occurred in october of 2003 when Dublin had 24 hours of severe thunderstorms which built up in the Irish sea due to a cold northerly plunge.
    Of course it was too warm then for snow.
    However if that weather pattern were to happen in january Weathercheck would be jumping up and down all over the place with joy:D and the East especially Dublin would have feet of snow.


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  • Registered Users, Registered Users 2 Posts: 12,780 ✭✭✭✭ninebeanrows


    Very true Earthman but i expect a trough to push south
    through Christmas day :) Probably will die
    out befoe it reaches the south coast though.
    Also late Christmas eve theresa strong possiblility
    of some heavy snow for many areas especially
    those in the more northern areas as a trough
    move south!! :D Overall this Christmas IS
    going to be white at least in some weather station
    in Ireland and probably in Dublin. Temperatures are
    likely to struggle to around 2c on Xmas day and
    St Stephens day and will drop to -3c especially
    in the east. These type of temperatures together
    with a gale force northwesterly wind will make it
    fell spectacularly cold windchill temperatures
    mightnd rise above -5c in some places!

    Oh and not to brag but heres the date and time i predicted a
    cold Christmas :p:D

    06-12-2004, 18:17

    Merry White Xmas!!
    Northern and Western Areas should now prepare for blizzard
    conditions and in excess of 20cm's of snow coupled with
    drifting. Things could really turn hairy across the Donegal
    Penninsula Come Late Christmas Day :)


  • Moderators, Science, Health & Environment Moderators Posts: 16,969 Mod ✭✭✭✭Gonzo


    ive seen the latest forecasts from the bbc and sky and both are indicating that we are gonna have sunny spells and the outside chance of a wintry shower during the christmas period with temperatures of 2 to 5C... however north and western areas of scotland, nothern ireland, wales and cornwall cud have a chance of some decent snow showers but theres no mention of 'bands of snow' anywhere... if what they are saying will turn out to be true it will be very very dissapointing indeed.. im refusing to get all excited with the prospect of a kneedeep white blanket coz i havent seen one in south meath since 1992 and when it comes to snow forecasts i cant help but not believe them as snow seems to be almost a thing of the past in these parts. If weathercheck is correct and i hope he is coz I would love nothing than to wake up to a foot of snow on christmas day then we shud all go out and buy him pints!!!


  • Registered Users, Registered Users 2 Posts: 12,780 ✭✭✭✭ninebeanrows


    Did i metnion knee deep snow??

    The highest i mentioned was 20cm for the north
    and west :)

    BBC and any of us dont know the exact detail
    for Christmas day. Put it this way there hardly going
    to pop on a trough of snow on that chart that there
    not sure of comin off are they?

    What they are sure of is what they will show
    Northern and Western areas will be plaqued
    by Heavy snow showers for certain now :)


  • Posts: 0 [Deleted User]


    BBC and any of us dont know the exact detail
    for Christmas day. Put it this way there hardly going
    to pop on a trough of snow on that chart that there
    not sure of comin off are they?
    But you keep telling us it's coming,what sort of puters do you have versus theirs :D
    if a trough moves south,It's going to be weak on the East coast too(theres no mention of any on the BBC forecast as yet)
    I'd like to see daytime temperatures below 2 degree's aswell if I was to be confident of snow at sealevel.
    I can tell you that based on experience rather than models.
    General forecasts of 2 degree's at sealevel could mean snow on high ground inland ( where due to height the temp might be one or zero) but it doesn't guarantee snow on the coast where Dublin is.
    It might happen but it's not a guarantee.

    Now for snow lovers that was the positive bit.
    However
    Met Éireann are predicting temps in the range of 3-5 degrees for Xmas day that would restrict snow to Northern areas and high ground elsewhere.
    Given that temps on wenesday and thursday are to be up to 12 degree's, the cold air plunge will have its work cut out to get them down to 2 degree's in Leinster.
    I'd say 3 or 4 degree's would be more realistic to be honest and that aint in the range for blizzards and lying snow.

    But then Mother nature is a wonderfull thing and can change her mind at any time.


  • Registered Users, Registered Users 2 Posts: 12,780 ✭✭✭✭ninebeanrows


    No Earthman No Thats incorrect :D !!!!!!!!!!
    Its like god versus the devil..........im god!! :D:D

    Latest UKMO runs show amazing cold over
    Ireland and the east looks the coldest :p:D

    gpdam on the Irish East Coast works out
    from the UKMO to be 516 dam on 12z Christmas day!
    Just a little bit of info gpdam readings of 520 translate
    roughly to freezing at sea level so what does
    516 make it?? :D

    I expect a trough to run south through Christmas Eve night
    and most of Ireland to wake up to at least a dusting of
    snow!!

    Believe me or believe me not, public forecasts are hardly
    going to predict event like this but a local english forecast
    predicted exactly that a trough moving south through
    the UK and Ireland deliver a white Christmas to most...

    Some stonking chart to come below......enjoy and believe :D

    brack2.gif

    Midday Xmas Eve 528dam line well clear of the south coast
    and our white christmas arriving in north Scotland these
    charts are what dreams are made of, i must add that
    the cold spell is only likely to last 3 days.

    Heres the 96hr chart for midday Christmas and its a fairytale chart:

    Rukm961.gif

    Christmas will be white for 80% of Ireland...Earthman your turn!!


  • Closed Accounts Posts: 1,836 ✭✭✭BigCon


    Oh and not to brag but heres the date and time i predicted a cold Christmas

    06-12-2004, 18:17

    I'd love a white christmas as much as the average person, but this is unbelievable - it's like "The Day After Tomorrow" (a bit of an exageration)!

    If it's not a white Christmas then Weathercheck need not show his face around here again :mad:

    If it is a white Christmas - then Weathercheck is my hero! :)


  • Registered Users, Registered Users 2 Posts: 12,780 ✭✭✭✭ninebeanrows


    Christmas is over and it was an official white Christmas nearly everywhere
    but alot of places only recieved a few snow showers :)

    Looking onward and upward it would seem late on Monday
    and into Tuesday we will have another brief 24hr cold
    snap, it shouldnt bring much but will bring another frost
    and perhaps some mountain snow late Monday.

    Looking further ahead there is a degree of agreement that
    we will have another short 48hr cold snap around New Years
    so that needs watching, enjoy your Turkey left overs and remember
    the white Christmas of 2004 :p We have all gotten a taste of the snow
    earlier than we usually would, we have two full months of real winter
    ahead of us lets hope there good :D


  • Registered Users, Registered Users 2 Posts: 12,780 ✭✭✭✭ninebeanrows


    Cold air is set to dig in later tonight, snow is possible in the north midlands
    and Ulster aroound and after midnight :D Didnt think i'd be saying that :D
    so soon after the previous cold snap :D

    Cold air digs in http://www.wetterzentrale.de/pics/Rtavn122.gif
    Lots of precip about http://www.wetterzentrale.de/pics/Rtavn124.gif
    Gpdam readings below 528 http://www.wetterzentrale.de/pics/Rtavn123.gif

    Perhaps a surprise for many come morning :)

    I still only expect sleety showers later but the charts show the
    possibility for snow to low levels from 1201 am :)

    Heres a modle interpretation at midnight Pinks indicate snow
    12_30.gif


  • Posts: 0 [Deleted User]


    Forecast post moved out of rain and shine and into the winter weather forecast thread.

    Weathercheck could you resist putting your forecast interpretations in the rain or shine thread, thats a record of current conditions only.

    For the record I do expect some mountain snow in the next 24hrs and maybe some shortlived wet sleetyness at sea level from showers.
    It will be so slight though, most people won't know it's happening unless you are driving along and happen to notice some icyness in the raindrops hitting your windscreen as the wipers are on.


  • Registered Users, Registered Users 2 Posts: 12,780 ✭✭✭✭ninebeanrows


    Sorry Earthman :)

    Metcheck going for sleet in Dublin later hardly much i know
    but worth keeping an eye on :);)


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