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Winter 2017-18: Discussion

1…2627293132…48

Comments

  • #1402
    Soccarboy11
    Registered Users, Registered Users 2 Posts: 579 ✭✭✭Soccarboy11


    I know not really to do with winter specifically, but anybody else notice met eireanns news animations, icons etc during the weather forecast? Looks a lot more modern, I like them :)


  • #1403
    George Sunsnow
    Closed Accounts Posts: 2,043 ✭✭✭George Sunsnow


    Gonzo wrote: »
    very thick fog here now after a sunny morning and early afternoon. Temps really struggling today across much of the midlands, north and north-east.

    Beautiful day here still in Arklow as the sun goes down,2nd in a row
    High of 6c
    Currently 4.7c
    Frosty soon I’d imagine assuming a fog doesn’t come here


  • #1404
    MJohnston
    Registered Users Posts: 10,673 ✭✭✭✭MJohnston


    Heaviest fog I've seen in years here in Dublin 7. Going to be a disaster of a commute later.


  • #1405
    Gaoth Laidir
    Registered Users, Registered Users 2 Posts: 8,219 ✭✭✭Gaoth Laidir


    Visibility at Waterford Airport is just 50 metres, 100 metres at Casement and Mullingar, 200 m at Dublin Airport and Oak Park.


  • #1406
    JCX BXC
    Registered Users, Registered Users 2 Posts: 18,281 ✭✭✭✭JCX BXC


    Foggy all day here in West Clare, nothing too dense at the moment.

    I note Knock is currently sub-zero.


  • #1407
    snowstorm445
    Registered Users Posts: 932 ✭✭✭snowstorm445


    Only a light mist out in Ringsend (you can see the Poolbeg Chimneys fairly clearly) but quite bad further in. Very chilly as well.


  • #1408
    Rougies
    Registered Users, Registered Users 2 Posts: 2,689 ✭✭✭Rougies


    A few Dublin Airport bound planes in holding pattern on flightradar24, I presume due to the fog.


  • #1409
    [Deleted User]
    Posts: 31,118 ✭✭✭✭ [Deleted User]


    http://www.bbc.com/news/world-asia-42653738
    Much of the snow in the city of Temirtau in central Kazakhstan is black.
    Instead of the usual white powder that children love to play with, the snow looks more like coal after a mysterious dark dust settled on the city in the beginning of January.
    Many residents, worried about their health, took to social media to call on the government to investigate the incident.
    "We can't live like this. We're suffocating here," wrote one user.
    A special group of scientists, made up of both independent ecologists and government experts, is working to identify the causes.

    That is serious pollution there!


  • #1410
    MJohnston
    Registered Users Posts: 10,673 ✭✭✭✭MJohnston


    Gaoth Laidir wrote: »
    Visibility at Waterford Airport is just 50 metres, 100 metres at Casement and Mullingar, 200 m at Dublin Airport and Oak Park.

    Just wondering, what is visibility specifically defined as? Is it about where you can't see anything except fog, or do different authorities have different definitions?


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  • #1411
    Gaoth Laidir
    Registered Users, Registered Users 2 Posts: 8,219 ✭✭✭Gaoth Laidir


    MJohnston wrote: »
    Just wondering, what is visibility specifically defined as? Is it about where you can't see anything except fog, or do different authorities have different definitions?

    It's different for metars and synops. In metars, it's the prevailing visibility (the greatest visibility over at least 50% of the horizon/airfield), whereas in synops it's the lowest visibility in any one direction. Synop visibility will therefore tend to be lower than metars, on average, though in fog like today there is no difference.

    Visibility is defined as the furthest distance at which an object can be clearly made out.


  • #1412
    MJohnston
    Registered Users Posts: 10,673 ✭✭✭✭MJohnston


    Gaoth Laidir wrote: »
    It's different for metars and synops. In metars, it's the prevailing visibility (the greatest visibility over at least 50% of the horizon/airfield), whereas in synops it's the lowest visibility in any one direction. Synop visibility will therefore tend to be lower than metars, on average, though in fog like today there is no difference.

    Visibility is defined as the furthest distance at which an object can be clearly made out.

    Thanks for that. I was wondering about the airports specifically because I guess they have runway lights that are going to be visible further out, and that's what would be more important to operations.


  • #1413
    Gaoth Laidir
    Registered Users, Registered Users 2 Posts: 8,219 ✭✭✭Gaoth Laidir


    MJohnston wrote: »
    Thanks for that. I was wondering about the airports specifically because I guess they have runway lights that are going to be visible further out, and that's what would be more important to operations.

    In that case it's the RVR that's important

    https://en.m.wikipedia.org/wiki/Runway_visual_range?wprov=sfla1


  • #1414
    MJohnston
    Registered Users Posts: 10,673 ✭✭✭✭MJohnston


    Gaoth Laidir wrote: »
    In that case it's the RVR that's important

    https://en.m.wikipedia.org/wiki/Runway_visual_range?wprov=sfla1

    Is that what is used as visibility in the METARs?


  • #1415
    George Sunsnow
    Closed Accounts Posts: 2,043 ✭✭✭George Sunsnow


    http://www.telegraph.co.uk/travel/travel-truths/watch-what-its-like-landing-a-plane-in-thick-fog/


  • #1416
    Gaoth Laidir
    Registered Users, Registered Users 2 Posts: 8,219 ✭✭✭Gaoth Laidir


    MJohnston wrote: »
    Is that what is used as visibility in the METARs?

    No. Both are used when the RVR goes below 2000 m.

    e.g. This is Shannon's latest metar.

    METAR EINN 111930Z 11011KT 0200 R24/1100D R06/0900D FG BKN001 BKN002 03/03 Q1023 NOSIG=

    Prevailing visibility 200 metres
    RVR on Runway 24 is 1100 metres and decreasing
    RVR on Runway 06 (the other end) is 900 metres and decreasing.


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  • #1417
    Meteorite58
    Moderators, Science, Health & Environment Moderators Posts: 12,208 Mod ✭✭✭✭Meteorite58


    Winds from the SE strengthening overnight and look quite fresh along coasts initially and getting blustery overland too later in the day. Strongest winds off shore from the SW and W over open water . Winds ,although very high, probably feeling a bit stronger then normal I would think as not usually that strength from a SE'ly direction.

    Looks like being very wet in the SW as the warm front initially seems to stall and then moves slowly across the country followed by a weak cold front. Temps seem to peak in the SW around 10C to around 6C further N. I am expecting a low cloud more or less continuously wet day here near Tralee, looks like most of the rainfall on mountains from lift.

    0TWMUCF.gif?1

    tempresult_zax1.gif


    CRRSAkR.png

    yKErpqF.png


  • #1418
    County rebel
    Registered Users Posts: 77 ✭✭County rebel


    No expert on weather but it seems to be raining here in west cork since last August and we have more again tomorrow .is this to do with climate change we surely are getting more rain than say 30 years ago.sorry if this is in the wrong thread.


  • #1419
    Meteorite58
    Moderators, Science, Health & Environment Moderators Posts: 12,208 Mod ✭✭✭✭Meteorite58


    Nice and sunny today in Kerry. Tracts of fog around the country showing up well on the NASSA Sat pic.

    Easd5Un.jpg?1


  • #1420
    Meteorite58
    Moderators, Science, Health & Environment Moderators Posts: 12,208 Mod ✭✭✭✭Meteorite58


    The jet looks very strong over the country in the early days of next week with a strong W N/W airflow developing along the corridor between the Azores HP and the Northern LP.

    Next Mon, Tues and Weds look very windy.

    ECM 850 hPa winds

    5cfSM2q.png?1


    uMUmjtG.png

    DI75Okw.png


    oFsu0kW.gif

    dhkwwXX.gif?1

    ECM 850 hPa winds

    6NGhd2a.gif?1


  • #1421
    nagdefy
    Closed Accounts Posts: 2,520 ✭✭✭nagdefy


    Meteorite58 wrote: »
    The jet looks very strong over the country in the early days of next week with a strong W N/W airflow developing along the corridor between the Azores HP and the Northern LP.

    Next Mon, Tues and Weds look very windy.

    ECM 850 hPa winds

    Fair wind chill with that, raw few days..


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  • #1422
    spoonerhead
    Registered Users Posts: 314 ✭✭spoonerhead


    Temperature in Dublin has gone from -1C at 10pm, to 3C at 1am. If this winter has taught me anything, it’s that this is one crazy country for weather


  • #1423
    Gonzo
    Moderators, Science, Health & Environment Moderators Posts: 16,999 Mod ✭✭✭✭Gonzo


    Currently -3C here. The past few days have been very cold in general. Wedesday's high here was 5C and Thursday's high was only 4C.


  • #1424
    sryanbruen
    Registered Users, Registered Users 2 Posts: 13,679 ✭✭✭✭sryanbruen


    LEVEL 1 Weather Alert - Be Aware- Rainfall Warning ...

    https://www.boards.ie/vbulletin/showthread.php?t=2057829326

    Photography site - https://www.sryanbruenphoto.com/

    Weather photo portfolio - https://sryanbruen.myportfolio.com/weather-1



  • #1425
    Rock Lesnar
    Registered Users, Registered Users 2 Posts: 11,882 ✭✭✭✭Rock Lesnar


    Despite how the rain radar looks, there has been no rain in north meath thankfully


  • #1426
    Meteorite58
    Moderators, Science, Health & Environment Moderators Posts: 12,208 Mod ✭✭✭✭Meteorite58


    That is some windy spell of weather from Monday with accompanying wind chill .

    tempresult_uck4.gif


  • #1427
    Meteorite58
    Moderators, Science, Health & Environment Moderators Posts: 12,208 Mod ✭✭✭✭Meteorite58


    Been watching next Tues/ Weds with interest. The ECM has been showing very tight isobars for a few days, looks like it could be very windy along Atlantic counties.

    ECU1-96_mtd3.GIF

    ECU1-120_xol3.GIF

    Note the high reading over the Kerry Mts, I have seen this on a number of these charts,I think they seem to give a peak reading for high terrain and not to be mistaken with wind speeds at the standard 10m.

    OWAlXzw.png

    850hPa winds

    dqKUq7C.gif?1


  • #1428
    nagdefy
    Closed Accounts Posts: 2,520 ✭✭✭nagdefy


    Meteorite58 wrote: »
    Been watching next Tues/ Weds with interest. The ECM has been showing very tight isobars for a few days, looks like it could be very windy along Atlantic counties.

    Looking at the weather on the 6 news and Tuesday had an average 3C over Ireland. That wind chill will make it feel well below freezing.


  • #1429
    Meteorite58
    Moderators, Science, Health & Environment Moderators Posts: 12,208 Mod ✭✭✭✭Meteorite58


    nagdefy wrote: »
    Looking at the weather on the 6 news and Tuesday had an average 3C over Ireland. That wind chill will make it feel well below freezing.

    I can only imagine it will be skinning, especially on coasts or open countryside.


  • #1430
    Gonzo
    Moderators, Science, Health & Environment Moderators Posts: 16,999 Mod ✭✭✭✭Gonzo


    I have to admit, I'm really not looking forward to that wind chill next week, it's going to feel well below 0C for much of next week.


  • #1431
    h7nlrp2v0g5u48
    Closed Accounts Posts: 1,544 ✭✭✭h7nlrp2v0g5u48


    nagdefy wrote: »
    Looking at the weather on the 6 news and Tuesday had an average 3C over Ireland. That wind chill will make it feel well below freezing.

    Speaking of the weather on Six One News I see the weather charts got a bit of a make over. I must day I like the graphics. Sorry for going off topic but I said I would mention it in here. I saw them for the first time yesterday evening. Cloudy and grey here in Tipperary with a slight breeze and a nice nip in the air.


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  • #1432
    Oscar Bravo
    Registered Users, Registered Users 2 Posts: 10,243 ✭✭✭✭Oscar Bravo


    Nice bright afternoon here in Castlebar with some sunshine breaking through in just light winds. feeling mild at 9 degrees.


  • #1433
    amandstu
    Registered Users, Registered Users 2 Posts: 3,866 ✭✭✭amandstu


    The early hours of the 18th ,does that look like a flooding episode on the South East coast of England?Kind of 1953 in reverse (from the South up)

    I think tides will be pretty high ... it is 5 days away..


    https://earth.nullschool.net/#2018/01/18/0000Z/wind/isobaric/1000hPa/orthographic=-39.16,63.39,823/loc=-10.849,53.483


  • #1434
    Meteorite58
    Moderators, Science, Health & Environment Moderators Posts: 12,208 Mod ✭✭✭✭Meteorite58


    :eek:

    Have to watch the evolution of this one for sure.

    ECU1-120_ktt2.GIF

    850 hPa winds

    ECU4-120_spo4.GIF


  • #1435
    JCX BXC
    Registered Users, Registered Users 2 Posts: 18,281 ✭✭✭✭JCX BXC


    There'd be a nice wind chill factor in that wind!


  • #1436
    HighLine
    Closed Accounts Posts: 3,378 ✭✭✭HighLine


    GFS not looking too severe

    ukwind.png


  • #1437
    nacho libre
    Registered Users, Registered Users 2 Posts: 17,199 ✭✭✭✭nacho libre


    It is noteworthy when it's the euro model showing the low that deep rather than the gfs. Although the ecm seems to be on its own in blowing up the low. The UKMO is not supporting it so far.


  • #1438
    Meteorite58
    Moderators, Science, Health & Environment Moderators Posts: 12,208 Mod ✭✭✭✭Meteorite58


    nacho libre wrote: »
    It is noteworthy when it's the euro model showing the low that deep rather than the gfs. Although the ecm seems to be on its own in blowing up the low. The UKMO is not supporting it so far.

    Yes and it twas the ECM that first picked up Storm Dylan and had a fairly accurate track before the local models even picked it up and then they took a few runs to fall in line. The track of Dylan did drift a bit more North. Will see.

    m1kuf7v.png?1

    tempresult_inx4.gif

    tempresult_nit7.gif

    tempresult_tqj2.gif


  • #1439
    nacho libre
    Registered Users, Registered Users 2 Posts: 17,199 ✭✭✭✭nacho libre


    Meteorite58 wrote: »
    Yes and it twas the ECM that first picked up Storm Dylan and had a fairly accurate track before the local models even picked it up and then they took a few runs to fall in line. The track of Dylan did drift a bit more North. Will see.

    m1kuf7v.png?1

    tempresult_inx4.gif

    tempresult_nit7.gif

    tempresult_tqj2.gif

    Well if the ecm is correct, then it'll probably be the wind that is the main concern, rather than snow at lower levels. It will be just feel really bitter in the heavy rain for most.


  • #1440
    Meteorite58
    Moderators, Science, Health & Environment Moderators Posts: 12,208 Mod ✭✭✭✭Meteorite58


    Fast moving deepening storm if this comes to pass. Seen some Dutch interest about this as it is presently tracking across Ireland, the UK and then into Holland.



    fxH1H1R.gif?1

    9qF5z3V.png

    dtnLhcE.png

    tiXp5hK.png


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  • #1441
    nacho libre
    Registered Users, Registered Users 2 Posts: 17,199 ✭✭✭✭nacho libre


    yes 90 mph gusts possible as it exits kent, no wonder they are taking note


  • #1442
    icesnowfrost
    Registered Users Posts: 1,008 ✭✭✭icesnowfrost


    Has anyone started a new page for the coming possible snow event tonight and up to Wednesday?


  • #1443
    sryanbruen
    Registered Users, Registered Users 2 Posts: 13,679 ✭✭✭✭sryanbruen


    icesnowfrost wrote: »
    Has anyone started a new page for the coming possible snow event tonight and up to Wednesday?

    https://www.boards.ie/vbulletin/showthread.php?t=2057828884&page=29

    Photography site - https://www.sryanbruenphoto.com/

    Weather photo portfolio - https://sryanbruen.myportfolio.com/weather-1



  • #1444
    Burts Bee
    Registered Users Posts: 266 ✭✭Burts Bee


    Is it way more windy and wet this winter than normal? We've moved from city to countryside and the ground is drenched all the time and the wind is crazy!


  • #1445
    JCX BXC
    Registered Users, Registered Users 2 Posts: 18,281 ✭✭✭✭JCX BXC


    icesnowfrost wrote: »
    Has anyone started a new page for the coming possible snow event tonight and up to Wednesday?

    Click the link at the top of the page that says weather and you can look yourself! :)


  • #1446
    sryanbruen
    Registered Users, Registered Users 2 Posts: 13,679 ✭✭✭✭sryanbruen


    Burts Bee wrote: »
    Is it way more windy and wet this winter than normal? We've moved from city to countryside and the ground is drenched all the time and the wind is crazy!

    Well, I mean if you're comparing to last year 2016/17, without a doubt yes but that was a very anticyclonic Winter. 2015/16, 2014/15 and 2013/14 were much worse than 2017/18 for windy and wet conditions.

    Photography site - https://www.sryanbruenphoto.com/

    Weather photo portfolio - https://sryanbruen.myportfolio.com/weather-1



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  • #1447
    Burts Bee
    Registered Users Posts: 266 ✭✭Burts Bee


    wow, were they worse, it feels very bad this year. But that could be because we're on top of a hill and way more exposed!


  • #1448
    sryanbruen
    Registered Users, Registered Users 2 Posts: 13,679 ✭✭✭✭sryanbruen


    Burts Bee wrote: »
    wow, were they worse, it feels very bad this year. But that could be because we're on top of a hill and way more exposed!

    Or you have a short memory.

    2013/14 was the wettest Winter on record in Ireland, 2015/16 was the second wettest. December 2015 was the wettest month and warmest December on record.

    Photography site - https://www.sryanbruenphoto.com/

    Weather photo portfolio - https://sryanbruen.myportfolio.com/weather-1



  • #1449
    Burts Bee
    Registered Users Posts: 266 ✭✭Burts Bee


    True too, i have a terrible memory...I used to live in a nice sheltered estate and now I live atop a hill so the weather is much more in my face this year!


  • #1450
    Elmer Blooker
    Registered Users, Registered Users 2 Posts: 6,188 ✭✭✭Elmer Blooker


    O no not again! The ECM again showing Scandinavian blocking, in fact very 1947ish looking.

    https://www.youtube.com/watch?v=UPw-3e_pzqU


  • #1451
    sryanbruen
    Registered Users, Registered Users 2 Posts: 13,679 ✭✭✭✭sryanbruen


    Whilst far from a SSW, the Polar Vortex gets quite a disturbance near the end of January on quite a few of the previous GFS runs.

    13ptQFu.png

    Photography site - https://www.sryanbruenphoto.com/

    Weather photo portfolio - https://sryanbruen.myportfolio.com/weather-1



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