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December 2020 C.E.T. and EWP forecast contests -- start of the new contest year for 2020-2021


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Posted
  • Location: Darlington
  • Weather Preferences: Warm dry summers
  • Location: Darlington

    5.4c to the 29th

    0.7c above the 61 to 90 average
    0.7c above the 81 to 10 average

    ___________________________

    Current high this month 6.1c on the 22nd
    Current low this month 3.9c on the 8th & 9th

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    On behalf of J10 and myself, welcome to another new competition year with the winter season of 2020-21 fast (?) approaching (??). The contests will include the CET forecast and the (still optional) EW

    2.4c    52mm of snow

    Excel Spreadsheet ->  December 20 CET.xlsx SummaryPDF Format December 20 Summary.pdf Monthly Scores 3 players got 5.0c spot on. SummerShower,  Downburst and 2010cold 37 pla

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    Posted
  • Location: Windsor
  • Weather Preferences: Snow and cold
  • Location: Windsor

    Could we sneak a colder than normal (1991 - 2019) December with the frosty weather tonight covering the last two days ?

    A drop to 5.1c before corrections seems likely now bringing the CET to 4.9c potentially.

    Edited by prolongedSnowLover
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    Posted
  • Location: Erith. SE London/kent 40m asl
  • Weather Preferences: Winter Snow, extreme weather, mainly sunny mild summers though.
  • Location: Erith. SE London/kent 40m asl
    13 hours ago, prolongedSnowLover said:

    Could we sneak a colder than normal (1991 - 2019) December with the frosty weather tonight covering the last two days ?

    A drop to 5.1c before corrections seems likely now bringing the CET to 4.9c potentially.

    Under 5c very possible now, 0c to -4c widely last night.

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    Posted
  • Location: Sheffield South Yorkshire 160M Powering the Sheffield Shield
  • Weather Preferences: Any Extreme
  • Location: Sheffield South Yorkshire 160M Powering the Sheffield Shield

    Sunny Sheffield at 4.8C  +0.1C above normal. Rainfall unchanged at 138mm 158.8% of the monthly average

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    Posted
  • Location: Coniston, Cumbria 90m ASL
  • Weather Preferences: wintry
  • Location: Coniston, Cumbria 90m ASL

    And with corrections usually being down then my 4.6 ain't looking so bad...

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    Posted
  • Location: Darlington
  • Weather Preferences: Warm dry summers
  • Location: Darlington

    5.3c to the 30th

    0.6c above the 61 to 90 average
    0.7c above the 81 to 10 average

    ___________________________

    Current high this month 6.1c on the 22nd
    Current low this month 3.9c on the 8th & 9th

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    Posted
  • Location: Edinburgh (previously Chelmsford and Birmingham)
  • Weather Preferences: Unseasonably cold weather (at all times of year), wind, and thunderstorms.
  • Location: Edinburgh (previously Chelmsford and Birmingham)

    Last four days are provisionally recorded as 4.4C on the 27th, 1.5C on the 28th, and 1.3C on the 29th and 30th. Wouldn't be surprised to see some adjustments here. I do wonder if they shift the measurement period from 12am-12am to 9am-9am (I think perhaps Roger or someone else has mentioned this before), since the value of 4.4C on the 27th would be consistent with (roughly) an 8C maximum at midnight and a 0C minimum 24 hours later; if the measurement period is shifted then we could see the value for the 27th drop a little.

    As for today, maybe we'll record the month's only negative value.

    Edited by Relativistic
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    Posted
  • Location: Manchester
  • Location: Manchester

    Looks like it may finish up at 4.9c after corrections. Shame the mild spell in the middle cancelled out the cold first and final weeks of the month. I'd suspect if we kept the cold going through the middle or even just average, we'd be close to the upper 2s. Overall its been a interesting month.

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    Posted
  • Location: Edinburgh (previously Chelmsford and Birmingham)
  • Weather Preferences: Unseasonably cold weather (at all times of year), wind, and thunderstorms.
  • Location: Edinburgh (previously Chelmsford and Birmingham)

    Yes, a mixture of milder and colder spells this month -- pretty much exactly what you'd expect from December: the Atlantic has yet to properly quieten down but intrusions of colder air become increasingly likely. Looks like the CET will reflect this, although rainfall will be higher than normal. It's a shame the source air wasn't/isn't colder during the month's colder incursions, with the extreme cold currently bottled up in Siberia. Perhaps a favourable SSW is what's needed to shift it west!

    It's very likely the annual CET will be around 10.7C -- either joint-third- or fourth-warmest on record, primarily due to the warm first-half (which, of course, gave way to cooler, cloudier, and wetter weather as soon as restrictions were lifted...).

    Edited by Relativistic
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    Posted
  • Location: Brentwood, Essex
  • Location: Brentwood, Essex

    Extremely cold day here in Essex, high of just 1C and low of -3C. A hard frost over night, the frostt is still there now! One of the coldest days here I imagine, certainly the coldest or joint coldest of this month/year/winter. Shame no snow though despite being forecasted

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    Posted
  • Location: Rotherhithe, 5.8M ASL
  • Location: Rotherhithe, 5.8M ASL

    Today would have dropped it by 0.2 I imagine a strong frost and a cold day for many few seen ice day in SE which is very rare. Easily the coldest day of 2020.

    F6AADAF1-996B-48C6-8B45-8211A57B1F40.thumb.png.0633282ce95862c295e0b96f486223b2.png8650D4BC-B045-47AF-AF08-2EEDDC3956F5.thumb.png.ffc75c0064dafccd18ab0a9f06dbc0cf.png

     

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    Posted
  • Location: Manchester
  • Location: Manchester
    3 hours ago, Daniel* said:

    Today would have dropped it by 0.2 I imagine a strong frost and a cold day for many few seen ice day in SE which is very rare. Easily the coldest day of 2020.

    F6AADAF1-996B-48C6-8B45-8211A57B1F40.thumb.png.0633282ce95862c295e0b96f486223b2.png8650D4BC-B045-47AF-AF08-2EEDDC3956F5.thumb.png.ffc75c0064dafccd18ab0a9f06dbc0cf.png

     

    A great way of ending such a horrible year. Hoping for these frosts to continue into Jan 

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    Posted
  • Location: Ludgershall, Wiltshire
  • Location: Ludgershall, Wiltshire
    4 hours ago, Daniel* said:

    Today would have dropped it by 0.2 I imagine a strong frost and a cold day for many few seen ice day in SE which is very rare. Easily the coldest day of 2020.

    F6AADAF1-996B-48C6-8B45-8211A57B1F40.thumb.png.0633282ce95862c295e0b96f486223b2.png8650D4BC-B045-47AF-AF08-2EEDDC3956F5.thumb.png.ffc75c0064dafccd18ab0a9f06dbc0cf.png

     

    I've already seen more frost and snow this winter than I did throughout the whole of 2019/20!

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    Posted
  • Location: Rossland BC Canada
  • Location: Rossland BC Canada

    Yes, the provisional will fall to 5.1, as the current 5.3 is actually 5.27, a value of -0.5 would change that to 157.6/31 or 5.08. That seems unlikely to hold at 5.1 (sadly) but gives me the "dubious double" of two months in a row where I hit the final provisional value. Seems like a very 2020 sort of accomplishment. Happy new year. 

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    Posted
  • Location: Leeds/Bradford border, 185 metres above sea level, around 600 feet
  • Location: Leeds/Bradford border, 185 metres above sea level, around 600 feet

    Excellent, only 0.3C out. 0.4C above the 1981-2010 average.

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    Posted
  • Location: Walsall Wood, Walsall, West Midlands 145m ASL
  • Location: Walsall Wood, Walsall, West Midlands 145m ASL

    At 5.0c December 2020 shares the same mean CET with December's:

    1660

    1663

    1668

    1717

    1729

    1999

     

     

     

     

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    Posted
  • Location: Manchester
  • Location: Manchester

    Overall CET for 2020 is 10.76 only beaten by 2006 and 2014 with CETs of 10.87 and 10.95 respectively. 3rd warmest year, can't say I'm surprised. With December's CET of 5.0, it makes it milder than average but certainly didn't feel like it. Let's hope 2021 has a different approach in the weather!

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    Posted
  • Location: Newcastle Upon Tyne (Spital Tongues)
  • Weather Preferences: Cold, Snow, Windstorms and Thunderstorms
  • Location: Newcastle Upon Tyne (Spital Tongues)

    So 9 of the 10 warmest years have occurred since 1990.

    AnnualCET.thumb.png.ac8c5e4c2441d260772814b45b93de2d.png


    For this year:
    31 days were in the top 10 warmest, 8 of which were daily records.
    5 days were in the 10 coldest, but no daily cold records were set.

    CET_2020.thumb.png.e3b0de97c2c7944bd7dec57e1d8937cc.png

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    Posted
  • Location: New Ash green 150M / 500 FT
  • Location: New Ash green 150M / 500 FT

    edited

    Edited by Steve Murr
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    Posted
  • Location: Erith. SE London/kent 40m asl
  • Weather Preferences: Winter Snow, extreme weather, mainly sunny mild summers though.
  • Location: Erith. SE London/kent 40m asl

    Only 0.4c out again, not too bad. Happy new year everyone.

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    Posted
  • Location: Ludgershall, Wiltshire
  • Location: Ludgershall, Wiltshire

    0.6C out, so not the best but certainly not the worst!

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