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uk.sci.weather (UK Weather) (uk.sci.weather) For the discussion of daily weather events, chiefly affecting the UK and adjacent parts of Europe, both past and predicted. The discussion is open to all, but contributions on a practical scientific level are encouraged. |
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#1
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For the 5th consecutive year, I present you with my Christmas weather
forecast. Having used various techniques in previous years, including MRF extrapolation, Tolkienesque fantasy, nursery rhyme plagiarism and artistic superimposition, all I should add, with a varying degrees of success. - This year I've decided to employ a scientific approach. Namely the fluffy dice forecast. Armed with no more than a couple of pink fluffy dice (an unwrapped xmas gift for a female co-worker and her new car). I will apply a simple probability ratio to three rolls of the dice. Each throw representing conditions on the 24th, 25th and 26th December respectively. Here is what each possible score shall equate too; บบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบ 2 - An extremely mild day throughout the UK, no doubt rather grey to boot in the west with a long and strong SSW fetch. Possibly fohn assisted record maximums in appropriate locations. 3 - A very mild day, maximum temps over the UK in the range 12บC to 15บC. 4 - A mild day, probably a good SW breeze over most of the country with rain in places. Max temps in double figures. 5- A fairly mild day, rain in places. Max temps from 8บC in the North to 11บC in the south west. 6- Near average, a touch of ground frost in sheltered glens. 7 - Average. Probably rain moving in from the west, max temps from 5บC in the far North to 9บC in the south. 8 - Near average. An air frost in some eastern and central areas, showers in the north and west, wintry over 3000ft. 9 - A fairly cold day. Wintry precip. over high ground (1500ft+). Frosts early and late in sheltered inland areas. 10 - A cold day. Snow showers at low levels in the far north and north east, Sleety showers near many east facing coasts further south. Maximums generally 2บC to 4C and no higher than 7บC except in the far South West. 11- A very cold day. Strong easterly or north easterly winds. Snow for many eastern and central areas, widespread blizzards in the far North. A very cold night for all to follow. 12 - An exceptionally cold day, widespread sub zero temperatures. -20บC minimums under an inversion in the north. Frequent snow showers south of the M4, easterly gale in the channel. บบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบ Not being a superstitious person, I didn't feel the need to place the fluffy dice in the freezer for an hour before my experiment. However, I did place them in the refrigerator for 15 min's... :P The first roll (24th December) scored .... 7 The second roll (xmas day) scored... 7 The 3rd roll (boxing day) scored...11. Therefore, no one will see a white Christmas this year in the UK, with the possible exception of a few hill walkers atop of the Cairngorms! Temperatures will be average for the time of year on xmas eve and xmas day, with slight frosts in the sheltered northern areas early morning. Maximums ranging from 6บC in the far north to 9บC in central and southern areas on xmas eve, and down a degree or so from these values on xmas day. With a high pressure cell moving into the Greenland/ Iceland area, a gentle northerly is likely. Later on xmas day the flow will strengthen in the northern Isles and snow showers will readily fall here by dawn behind a cold front. On Boxing day the high pressure is firmly established over Greenland and Iceland and the wind veers from a Northerly to a strong North easterly in the wake of the vigorous cold front trundling south. Helped additionally by a stationary low in Central Europe. Cold polar continental air from Scandinavia will flood most of the country by late evening, with snow very likely in the North and east after sunset, quickly affecting all eastern coastal areas overnight. Rogue snow showers are possible in central areas - with a substantial wind chill factor. Outlook - Liable to be cold and snowy for a few days in a NNE flow. In the unlikely event this forecast should prove accurate, please feel free to adopt the method and claim it as your own. I shan't be using it again, even if it happens to be perfect - and even if I get some fluffy dice of my own! It should be noted that at least it has some scientific basis, unlike some other Christmas forecasts that are banded around :P Far more importantly, with or without the weather you desire, Merry Christmas when it comes everyone. Alex. บบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบ Alex Stephens Jr Wishaw, North Lanarkshire, Scotland N55บ47'14", W3บ55'15". 360ft/117m amsl http://www.alex114.pwp.blueyonder.co.uk/ บบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบ |
#2
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Thankyou Alex,
It's nice to see some detail put in to the longer range forecasts - something the more experienced members of the group tend to overlook. Tounge firmly in cheek, Jeremy "Alex Stephens Jr" wrote in message ... For the 5th consecutive year, I present you with my Christmas weather forecast. Having used various techniques in previous years, including MRF extrapolation, Tolkienesque fantasy, nursery rhyme plagiarism and artistic superimposition, all I should add, with a varying degrees of success. - This year I've decided to employ a scientific approach. Namely the fluffy dice forecast. Armed with no more than a couple of pink fluffy dice (an unwrapped xmas gift for a female co-worker and her new car). I will apply a simple probability ratio to three rolls of the dice. Each throw representing conditions on the 24th, 25th and 26th December respectively. Here is what each possible score shall equate too; บบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบ 2 - An extremely mild day throughout the UK, no doubt rather grey to boot in the west with a long and strong SSW fetch. Possibly fohn assisted record maximums in appropriate locations. 3 - A very mild day, maximum temps over the UK in the range 12บC to 15บC. 4 - A mild day, probably a good SW breeze over most of the country with rain in places. Max temps in double figures. 5- A fairly mild day, rain in places. Max temps from 8บC in the North to 11บC in the south west. 6- Near average, a touch of ground frost in sheltered glens. 7 - Average. Probably rain moving in from the west, max temps from 5บC in the far North to 9บC in the south. 8 - Near average. An air frost in some eastern and central areas, showers in the north and west, wintry over 3000ft. 9 - A fairly cold day. Wintry precip. over high ground (1500ft+). Frosts early and late in sheltered inland areas. 10 - A cold day. Snow showers at low levels in the far north and north east, Sleety showers near many east facing coasts further south. Maximums generally 2บC to 4C and no higher than 7บC except in the far South West. 11- A very cold day. Strong easterly or north easterly winds. Snow for many eastern and central areas, widespread blizzards in the far North. A very cold night for all to follow. 12 - An exceptionally cold day, widespread sub zero temperatures. -20บC minimums under an inversion in the north. Frequent snow showers south of the M4, easterly gale in the channel. บบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบ Not being a superstitious person, I didn't feel the need to place the fluffy dice in the freezer for an hour before my experiment. However, I did place them in the refrigerator for 15 min's... :P The first roll (24th December) scored .... 7 The second roll (xmas day) scored... 7 The 3rd roll (boxing day) scored...11. Therefore, no one will see a white Christmas this year in the UK, with the possible exception of a few hill walkers atop of the Cairngorms! Temperatures will be average for the time of year on xmas eve and xmas day, with slight frosts in the sheltered northern areas early morning. Maximums ranging from 6บC in the far north to 9บC in central and southern areas on xmas eve, and down a degree or so from these values on xmas day. With a high pressure cell moving into the Greenland/ Iceland area, a gentle northerly is likely. Later on xmas day the flow will strengthen in the northern Isles and snow showers will readily fall here by dawn behind a cold front. On Boxing day the high pressure is firmly established over Greenland and Iceland and the wind veers from a Northerly to a strong North easterly in the wake of the vigorous cold front trundling south. Helped additionally by a stationary low in Central Europe. Cold polar continental air from Scandinavia will flood most of the country by late evening, with snow very likely in the North and east after sunset, quickly affecting all eastern coastal areas overnight. Rogue snow showers are possible in central areas - with a substantial wind chill factor. Outlook - Liable to be cold and snowy for a few days in a NNE flow. In the unlikely event this forecast should prove accurate, please feel free to adopt the method and claim it as your own. I shan't be using it again, even if it happens to be perfect - and even if I get some fluffy dice of my own! It should be noted that at least it has some scientific basis, unlike some other Christmas forecasts that are banded around :P Far more importantly, with or without the weather you desire, Merry Christmas when it comes everyone. Alex. บบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบ Alex Stephens Jr Wishaw, North Lanarkshire, Scotland N55บ47'14", W3บ55'15". 360ft/117m amsl http://www.alex114.pwp.blueyonder.co.uk/ บบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบบ |
#3
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![]() ================================================== ================== This posting expresses the personal view and opinions of the author. Something which everyone on this planet should be able to do. ================================================== ================== Well done Alex - methodology explained ! Some proper science even if the method seems a tad dubious :-) Brian Gaze take note :-) Merry Yuletide to you too, Will. -- " Visit Haytor meteorological office at http://www.lyneside.demon.co.uk/Hayt...met_office.htm " ------------------------------------------------------------------------------- A COL BH site in East Dartmoor at Haytor, Devon 310m asl (1017 feet). mailto: www: http://www.lyneside.demon.co.uk DISCLAIMER - All views and opinions expressed by myself are personal and do not necessarily represent those of my employer. ------------------------------------------------------------------------------- "Alex Stephens Jr" wrote in message ... snip |
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