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August 2021 Boards weather forecast contest

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  • Registered Users Posts: 13,270 ✭✭✭✭sryanbruen


    Well before yesterday's 69.2mm (in the 24-hour period ending 0900 this morning), the record was to my knowledge 49.2mm on 1 August 2014. So if that's correct, it was smashed by an entire 20mm.

    In terms of any month, there remains one single day that has beaten it which was 75.9mm on 17 November 1965.



  • Registered Users Posts: 1,466 ✭✭✭Jpmarn


    This months bonus question wasn’t that easy to answer. We are dumbfounded that a station in the midlands rather than near the west coast would become the answer. It is unlikely that the daily amount of 71.1mm recorded by Mullingar would be beaten but it is a possibility. 71.1mm must be near average for the whole month of August and yet it all fell in one day.



  • Registered Users Posts: 14,058 ✭✭✭✭M.T. Cranium


    The average August rainfall at Mullingar is 84.1 mm but oddly enough July's average is 71.1 mm.

    This max will be tough to beat but maybe sryanbruen or somebody else can tell us what is the all-time daily record rainfall at any location in Ireland, and if that's not in the summer, what is the maximum for the three summer months?



  • Registered Users Posts: 1,466 ✭✭✭Jpmarn


    For an honorable mention in the Bonus question is Markee Castle 53.2mm of rain on Saturday 8th. Probably second place to Mullingar.



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  • Registered Users Posts: 14,058 ✭✭✭✭M.T. Cranium


    After the first week of August ...

    IMT barely 15.1 (from 15.06) which is 0.5 below normal.

    MAX 22.7, MIN not tracked yet.

    PRC 238% of normal, range was 73% at Johnstown to 620% at Mullingar.

    SUN 58.5% of normal (351/600).

    BONUS: 71.1 mm Mullingar is the max so far.

    That early deluge has brought the "guaranteed" rainfall to about 55% of normal, and normal rainfall from today to 31st would end up at about 135% of normal. The amount required to end up at normal is 60%.

    For SUN we will need to average 115 per cent of normal now to 31st to get back to 100%.



  • Registered Users Posts: 14,058 ✭✭✭✭M.T. Cranium


    I noriced it was 7 C at Mullingar during the night, check for the actual minimum.



  • Registered Users Posts: 5,503 ✭✭✭appledrop


    It got down to min of 6.8 yesterday at Mullingar.



  • Registered Users Posts: 14,058 ✭✭✭✭M.T. Cranium


    After two weeks ...

    IMT now 14.9 with the second week average 14.8 which was 0.6 below normal.

    MAX 22.7 and MIN 6.8

    PRC now 170% of normal with second week average 102%. This guarantees an outcome of at least 80 per cent and requires just 40% of normal today to 31st to get to an outcome of 100%.

    SUN now at 81% with the second week average 104% (622/600).

    BONUS leader remains 71.1 mm (Mullingar).



  • Registered Users Posts: 14,058 ✭✭✭✭M.T. Cranium


    After three weeks ...

    IMT on 15.1 with the third week at 15.5 which was 0.2 above normal.

    MAX still 22.7 and MIN 6.8

    PRC at 149% of normal with the third week at 106% of normal. This now guarantees an outcome near 98% of normal with no further rain (and very little is predicted).

    SUN back down to 70% of normal with the third week quite cloudy at 48% (287/600). With today unlikely to move the average, this means that a 150% run for the last ten days would give an outcome of 98% to match the PRC. An average of 125% would give an outcome of 90%.

    The maximum 24h rainfall (now seems likely to stand) remains 71.1 mm at Mullingar.



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  • Registered Users Posts: 686 ✭✭✭Tae laidir


    Newport Furnace 24.2 yesterday.



  • Moderators, Home & Garden Moderators, Science, Health & Environment Moderators Posts: 17,276 Mod ✭✭✭✭DOCARCH


    Max. of 24.9c yesterday at both Newport and Mt Dillon.



  • Registered Users Posts: 1,760 ✭✭✭Bsal


    25.1c Mount Dillon



  • Registered Users Posts: 14,058 ✭✭✭✭M.T. Cranium


    Scoring for the Max 24h rainfall bonus

    It seems unlikely that there will be any significant rainfall to the end of this month, so the 71.1 mm at Mullingar on 5th will be the standard. (later edit) There was a rainfall of 55.8 mm of Markree on the 8th, then third and fourth highest values for scoring locations appear to be Claremorris (37.7 mm) and Knock (29.6 mm) also on the 5th. Dublin had 25.8 mm and I have checked all other locations, can't recall anything over 25 mm on any other date, but open to any information, this is quite a preliminary scoring report.

    Seven points for the amount and three for a location. Scores are grouped by amount, with any additional points from location shown. Will be generous and give one point for location to all choices, two for Claremorris, Knock or Dublin (no one chose Dublin or Markree anyway so I decided those were irrelevant to scoring), and the max of three for Mullingar which dasa29 selected.

    Superbonus points are available (7+3 would receive 2, 7+2 or 6+3 would get one) ... as it turned out, only one superbonus was found (GL had 7+2) and no others qualified. I never heard back from 200motels about what the 166.44 actually meant but figured it was either a monthly amount or it meant 166 if monthly, 44 if daily, so as 44 mm scored rather modestly, I scored that -- if the 166.44 meant a monthly amount then quite possibly one might predict any number between 40 and 100 some of which would not score better than 44. If I hear back about what was actually meant I might revise this one.

    Scores were in groups of four down to 40 mm then in groups of three preserving some element of similar scoring for clusters of forecasts. (later edit) Then I discovered that John mac had been left out of the table of forecasts, my apologies, will just add in his score without changing any others.


    7 pts ___ Gaoth Laidir 72 mm (+2 loc'n + 1 s.b.) =10

    7 pts ___ sunflower3 65.5 mm (+1 loc'n) = 8

    7 pts ___ Joe Public 65.2 mm (+1 loc'n) = 8

    7 pts ___ Sleet and Snow 60.5 mm (+1 loc'n) = 8

    6 pts ___ M.T. Cranium 55.5 mm (+1 loc'n) = 7

    6 pts ___ JPmarn 55.0 mm (+1 loc'n) = 7

    6 pts ___ MrSkinner 55.0 mm (+1 loc'n) = 7

    6 pts ___ waterways 52.5 mm (+1 loc'n) = 7

    5 pts ___ Adam240610 51.4 mm (+1 loc'n) = 6

    5 pts ___ Appledrop, Pauldry 50.0 mm (+1 loc'n) = 6

    __ 5 pts __ Con Sensus 49.8 mm (+1 loc'n) = 6

    5 pts ___ John mac 49.8 mm (+1 loc'n) = 6

    5 pts ___ Western Storm 48.0 mm (+2 loc'n) = 7

    4 pts ___ Tae laidir 47.5 mm (+1 loc'n) = 5

    4 pts ___ Kindred Spirit 46.0 mm (+1 loc'n) = 5

    4 pts ___ dasa29 45.0 mm (+3 loc'n) = 7

    4 pts ___ 200motels 44.0 mm (+1 loc'n) = 5

    __ 3 pts __ Normal 40.0 mm (+2 loc'n) = 5

    3 pts ___ Artane2002 38.4 mm (+1 loc'n) = 4

    3 pts ___ Bsal 38.0 mm (+2 loc'n) = 5

    3 pts ___ Esposito 36.8 mm (+1 loc'n) = 4

    2 pts ___ sryanbruen 32.0 mm (+2 loc'n) = 4

    2 pt ____ Gonzo 28.0 mm (+1 loc'n) = 3

    2 pt ____ Mr Stonewall 21.0 mm (+1 loc'n) = 3

    1 pt ____ DOCARCH 7.5 mm (+1 loc'n) = 2

    1 pt ____ dacogawa 190 mm (+1 loc'n) = 2

    _________________________________________

    Forecasts (with bonus scores shown) for later total scoring ...

    ... because I had missed John mac's forecast now added, I have gone over the values for Con Sensus which resulted in very small changes shown here.


    Jpmarn _________15.9 _ 27.5 _ 2.5 _ 125 _ 095 __ 55.0 Valentia 7

    WesternStorm ___ 15.6 _ 27.5 _ 2.3 _ 090 _ 110 __ 48.0 Knock 7

    Sunflower3 ______15.6 _ 27.5 _ 2.6 _ 095 _ 090 __ 65.5 Valentia 8

    Mr stonewall _____15.6 _ 27.1 _ 2.3 _ 084 _ 118 __ 21.0 Shannon 3

    Tae laidir _______ 15.5 _ 27.3 _ 3.3 _ 098 _ 095 __ 47.5 Malin 5

    Joe Public _______15.4 _ 29.5 _ 2.5 _ 090 _ 120 __ 65.2 Finner 8

    waterways ______ 15.4 _ 28.4 _ 2.5 _ 117 _ 115 __ 52.5 Cork 7

    MrSkinner _______15.3 _ 25.0 _ 2.1 _ 090 _ 110 __ 55.0 Valentia 7

    Dasa29 _________15.2 _ 25.5 _ 5.0 _ 095 _ 115 __ 45.0 Mullingar 7

    Dacogawa _______15.1 _ 29.4 _ 2.2 _ 186 _ 089 __ 190 Belmullet 2

    ___ NormaL _____15.1 _ 27.0 _ 1.5 _ 100 _ 100 __ 40.0 (location by climatology) 5

    Kindred Spirit ___ 15.0 _ 26.0 _ 2.0 _ 105 _ 090 __ 46.0 Newport 5

    Gaoth Laidir _____15.0 _ 25.3 _-1.5 _ 115 _ 097 __ 72.0 Claremorris 10

    ___ Con sensus __14.9 _ 26.3 _ 2.1 _ 115 _ 091 __ 49.8 (Mul = 1 by rules) 6

    johnmac _______ 14.9 _ 26.9 _ 2.5 _ 110 _ 098 __ 49.8 (Newport) 6

    Artane2002 _____ 14.9 _ 26.4 _ 0.9 _ 110 _ 090 __ 38.4 Newport 4

    Adam240610 ____ 14.9 _ 26.2 _ 1.8 _ 120 _ 085 __ 51.4 Cork 6

    M.T. Cranium ____ 14.9 _ 26.0 _ 1.5 _ 120 _ 090 __ 55.5 Cork 7

    Esposito ________ 14.8 _ 27.3 _ 2.3 _ 144 _ 099 __ 36.8 Newport 4

    DOCARCH _______14.8 _ 26.8 _ 2.1 _ 115 _ 092 ___ 7.5 Belmullet 2

    Bsal ___________ 14.8 _ 24.9 _ 2.0 _ 115 _ 091 __ 38.0 Knock 5

    sryanbruen ______14.7 _ 25.1 _ 2.1 _ 115 _ 090 __ 32.0 Claremorris 4

    Gonzo __________14.6 _ 25.3 _ 1.2 _ 135 _ 082 __ 28.0 Dunsany 3

    SleetAndSnow ___ 14.5 _ 25.1 _ 1.4 _ 138 _ 085 __ 60.5 Cork 8

    200motels ______ 14.4 _ 25.3 _ 1.4 _ 122 _ 080 __ 166.44 Newport 5

    Appledrop _______14.4 _ 25.2 _ 1.8 _ 130 _ 078 __ 50.0 Newport 6

    Pauldry _________14.3 _ 26.3 _ 1.1 _ 155 _ 081 __ 50.0 Newport 6

    Post edited by M.T. Cranium on


  • Registered Users Posts: 5,078 ✭✭✭John mac


    im missing from the lists . 🙁 is it cause i Hate this new site layout ..



  • Registered Users Posts: 14,058 ✭✭✭✭M.T. Cranium


    Hey John mac, somehow I missed your forecast from the table of forecasts, I see it there now at the top of page two. Either I missed it then, or due to this change in format it perhaps wasn't in view for me at that time? Don't know. Will fix up the table above and add your forecast to the table of forecasts quoted there (I can't edit the original one but it will show up with the eventual scoring). My apologies.



  • Registered Users Posts: 5,503 ✭✭✭appledrop


    New Max 26.3 at Athenry.



  • Registered Users Posts: 5,503 ✭✭✭appledrop


    Looks like we might be way out on minimum value.

    We would expect low values in these last few days, coming into autumn but with current nice weather that's probably not going to be the case.

    Not that I'm complaining, it's years since we had nice weather in August!



  • Registered Users Posts: 14,058 ✭✭✭✭M.T. Cranium


    Looks like that 26.3 might hold up, yesterday's max was 25.8 and I don't think it got past 24 anywhere today. Pauldry and our Con Sensus hit 26.3 right on.

    As to the MIN, that could still go down -- I saw some 6 C readings around 0600h this morning and by Monday night into Tuesday's min, could go a bit lower if skies remain clear in the right places. Otherwise would look like dasa29 could be in position to scoop a reduced minimum progression (5.0 the forecast, second highest was Tae laidir 3.3 -- this also in position to produce a reduced minimum progression as third highest is 2.6). Any value below 2.8 and above 0.7 will eliminate minimum progression. One other forecast that could in theory produce a reduced boost is -1.5 from GL, as 0.9 (Artane2002) is second lowest.

    I will have the usual fourth week report tomorrow but as of now the IMT is probably going to be 15.7 and from there it will likely lose just 0.1 heading in, or stay at 15.7 (average forecast high about 21, low about 11, so there won't be much pressure on 15.7 to move up or down). It was 15.56 after 27 days. Could still round to 15.6 after 28, we'll find out.

    There has been basically no rain in the grid for days so if it stays dry the month will end up 98% of normal. Sunshine has averaged about 160% in the fourth week (to be confirmed) which is going to push that value close to 100% or even 105-110 if it stays sunny, from quite a cloudy start. There could be some quite high scores especially if certain people hit their MIN values. If dasa29 holds on to the MIN that total score could be as high as 84. Kindred Spirit could exceed 80 by hitting his MIN of 2.0.



  • Registered Users Posts: 5,503 ✭✭✭appledrop


    New Min 5.7 at Mt. Dillion yesterday.



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  • Registered Users Posts: 14,058 ✭✭✭✭M.T. Cranium


    Time is running out on MIN, unless this evening features any plunging temperatures it looks as though dasa29 will score with the only forecast close to actual. Will update the provisional scoring when final IMT and PRC are known tomorrow.



  • Registered Users Posts: 14,058 ✭✭✭✭M.T. Cranium


    IMT finished on 15.5 C, the provisional scores will need a one point adjustment there, and I will wait until I can confirm the MIN and the SUN which probably fell back to around 90% (as scored). As the MS will appear tomorrow, I will get the scoring updated by then. You can estimate your MIN score as follows, dasa29 would score 19 for 5.0, and I would start the rest of the minimum progression from 16 with two values on each scoring level, sometimes one or two more where there are a lot of ties. This depends on what I see in the MS for the min, never know we might have overlooked something.



  • Registered Users Posts: 14,058 ✭✭✭✭M.T. Cranium


    As you'll see above, I have found the actual values slightly different for MIN, PRC and SUN which required slight edits to the table of scoring above, now it's on to the annual update.

    (MIN was 4.5 on 2nd, we missed that, and PRC worked out to 97% from their data, SUN 93% from average of 4.42h vs normal of 4.73h for the contest grid. MAX was confirmed to be 26.3).



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