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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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The met update has reverted back to original idea of cold feb throughout
Outlook for Sunday to Tuesday: Patchy rain on Sunday, with sleet or snow possible in southeastern parts. Strong northerly winds developing on Monday and Tuesday with showers in places, these wintry in the east. Updated: 1511 on Fri 10 Feb 2012 UK Outlook for Wednesday 15 Feb 2012 to Friday 24 Feb 2012: Wintry showers are likely over some northern and eastern parts of the UK on Wednesday, with outbreaks of rain and drizzle more likely elsewhere. It will probably remain unsettled during the second half of next week and northern parts of the UK will probably see periods of rain, with snow possible on high ground, perhaps to low levels at times in the north and east. The south and west will remain drier and brighter, although with rain possible at times. Many areas should see temperatures around normal for a time next week, but it is likely to become colder than average by the following week. With the weather likely to remain unsettled, showers or longer spells of rain are likely across the UK, with further sleet and snow in places. Updated: 1231 on Fri 10 Feb 2012 UK Outlook for Saturday 25 Feb 2012 to Saturday 10 Mar 2012: The last few days of February and beginning of March are likely to see changeable weather. Temperatures are probably going to be average or below average for the time of year. Being late February/early March, this suggests that overnight frosts are still likely, especially during any quieter interludes. Showers and longer spells of rain are possible with an ongoing risk of snow, mainly in the north and east. Updated: 1233 on Fri 10 Feb 2012 |
#2
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On 10/02/2012 15:31, Stan wrote:
The met update has reverted back to original idea of cold feb throughout Outlook for Sunday to Tuesday: Patchy rain on Sunday, with sleet or snow possible in southeastern parts. Strong northerly winds developing on Monday and Tuesday with showers in places, these wintry in the east. Updated: 1511 on Fri 10 Feb 2012 UK Outlook for Wednesday 15 Feb 2012 to Friday 24 Feb 2012: Wintry showers are likely over some northern and eastern parts of the UK on Wednesday, with outbreaks of rain and drizzle more likely elsewhere. It will probably remain unsettled during the second half of next week and northern parts of the UK will probably see periods of rain, with snow possible on high ground, perhaps to low levels at times in the north and east. The south and west will remain drier and brighter, although with rain possible at times. Many areas should see temperatures around normal for a time next week, but it is likely to become colder than average by the following week. With the weather likely to remain unsettled, showers or longer spells of rain are likely across the UK, with further sleet and snow in places. Updated: 1231 on Fri 10 Feb 2012 UK Outlook for Saturday 25 Feb 2012 to Saturday 10 Mar 2012: The last few days of February and beginning of March are likely to see changeable weather. Temperatures are probably going to be average or below average for the time of year. Being late February/early March, this suggests that overnight frosts are still likely, especially during any quieter interludes. Showers and longer spells of rain are possible with an ongoing risk of snow, mainly in the north and east. Updated: 1233 on Fri 10 Feb 2012 Looking at the GFS medium range charts and reading between the lines of the above forecast (especially the bit about precipitation to the north and east) I think that it will not be the Russian High returning but rather the Azores High having a little wander to the north, so giving us the cold N or NW set up which Will has spoken of in another thread. The 850 hPa temperature charts certainly show the cold air coming from somewhere near Spitzbergen or Greenland rather than somewhere near Moscow. Aesthetically, this is much to be preferred as the cold easterlies off the Continent have a habit of being hazy in depth whilst the N or NWlies can be brilliantly clear which is nice for those who like the starry skies. It would be nice to have a good view of the impending conjunction (close approach) of Venus and Jupiter in the evening skies. It would also be a relief for our Continental cousins, who have had more Russian air than they know what to do with these last few weeks. They need a break. -- - Yokel - Yokel posts via a spam-trap account which is not read. |
#3
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On Feb 10, 10:22*pm, Yokel wrote:
On 10/02/2012 15:31, Stan wrote: The met update has reverted back to original idea of cold feb throughout Outlook for Sunday to Tuesday: Patchy rain on Sunday, with sleet or snow possible in southeastern parts. Strong northerly winds developing on Monday and Tuesday with showers in places, these wintry in the east. Updated: 1511 on Fri 10 Feb 2012 UK Outlook for Wednesday 15 Feb 2012 to Friday 24 Feb 2012: Wintry showers are likely over some northern and eastern parts of the UK on Wednesday, with outbreaks of rain and drizzle more likely elsewhere. It will probably remain unsettled during the second half of next week and northern parts of the UK will probably see periods of rain, with snow possible on high ground, perhaps to low levels at times in the north and east. The south and west will remain drier and brighter, although with rain possible at times. Many areas should see temperatures around normal for a time next week, but it is likely to become colder than average by the following week. With the weather likely to remain unsettled, showers or longer spells of rain are likely across the UK, with further sleet and snow in places. Updated: 1231 on Fri 10 Feb 2012 UK Outlook for Saturday 25 Feb 2012 to Saturday 10 Mar 2012: The last few days of February and beginning of March are likely to see changeable weather. Temperatures are probably going to be average or below average for the time of year. Being late February/early March, this suggests that overnight frosts are still likely, especially during any quieter interludes. Showers and longer spells of rain are possible with an ongoing risk of snow, mainly in the north and east. Updated: 1233 on Fri 10 Feb 2012 Looking at the GFS medium range charts and reading between the lines of the above forecast (especially the bit about precipitation to the north and east) I think that it will not be the Russian High returning but rather the Azores High having a little wander to the north, so giving us the cold N or NW set up which Will has spoken of in another thread. *The 850 hPa temperature charts certainly show the cold air coming from somewhere near Spitzbergen or Greenland rather than somewhere near Moscow.. Aesthetically, this is much to be preferred as the cold easterlies off the Continent have a habit of being hazy in depth whilst the N or NWlies can be brilliantly clear which is nice for those who like the starry skies. *It would be nice to have a good view of the impending conjunction (close approach) of Venus and Jupiter in the evening skies. I've noticed those two get closer and closer in the past few weeks so the conjunction is going to be pretty spectacular I should think. This must incidentally be one of the best appearances of Venus in the evening sky for some time, with Venus still clearly above the horizon as late as 8pm, almost 3 hours after sunset. Nick |
#4
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On 10/02/2012 22:42, Nick wrote:
On Feb 10, 10:22 pm, wrote: On 10/02/2012 15:31, Stan wrote: The met update has reverted back to original idea of cold feb throughout Outlook for Sunday to Tuesday: Patchy rain on Sunday, with sleet or snow possible in southeastern parts. Strong northerly winds developing on Monday and Tuesday with showers in places, these wintry in the east. Updated: 1511 on Fri 10 Feb 2012 UK Outlook for Wednesday 15 Feb 2012 to Friday 24 Feb 2012: Wintry showers are likely over some northern and eastern parts of the UK on Wednesday, with outbreaks of rain and drizzle more likely elsewhere. It will probably remain unsettled during the second half of next week and northern parts of the UK will probably see periods of rain, with snow possible on high ground, perhaps to low levels at times in the north and east. The south and west will remain drier and brighter, although with rain possible at times. Many areas should see temperatures around normal for a time next week, but it is likely to become colder than average by the following week. With the weather likely to remain unsettled, showers or longer spells of rain are likely across the UK, with further sleet and snow in places. Updated: 1231 on Fri 10 Feb 2012 UK Outlook for Saturday 25 Feb 2012 to Saturday 10 Mar 2012: The last few days of February and beginning of March are likely to see changeable weather. Temperatures are probably going to be average or below average for the time of year. Being late February/early March, this suggests that overnight frosts are still likely, especially during any quieter interludes. Showers and longer spells of rain are possible with an ongoing risk of snow, mainly in the north and east. Updated: 1233 on Fri 10 Feb 2012 Looking at the GFS medium range charts and reading between the lines of the above forecast (especially the bit about precipitation to the north and east) I think that it will not be the Russian High returning but rather the Azores High having a little wander to the north, so giving us the cold N or NW set up which Will has spoken of in another thread. The 850 hPa temperature charts certainly show the cold air coming from somewhere near Spitzbergen or Greenland rather than somewhere near Moscow.. Aesthetically, this is much to be preferred as the cold easterlies off the Continent have a habit of being hazy in depth whilst the N or NWlies can be brilliantly clear which is nice for those who like the starry skies. It would be nice to have a good view of the impending conjunction (close approach) of Venus and Jupiter in the evening skies. I've noticed those two get closer and closer in the past few weeks so the conjunction is going to be pretty spectacular I should think. This must incidentally be one of the best appearances of Venus in the evening sky for some time, with Venus still clearly above the horizon as late as 8pm, almost 3 hours after sunset. Nick These apparitions of Venus happen at regular intervals. There is a "resonance" between the orbits of Venus and Earth - 8 "Earth" years are almost exactly 13 "Venus" years - so that conjunctions (when Venus appears to pass between us and the sun [inferior], or on the far side [superior] ) and elongations (when it appears to us at its furthest from the sun) can only occur in one of five months of the year. This has been known for a long time and is mentioned in "The Da Vinci Code" book, where these five positions in the orbit of Venus - the goddess of the "Sacred Feminine" - are matched with the five points of the Pentacle - the figure representing the "Sacred Feminine". This year's inferior conjunction is in June, and Venus will actually pass across the face of the Sun early on 6 June - you will need to wake up at sunrise to see the last part of this event in the UK. It's worth getting up for - the transits of Venus occur in pairs 8 years apart separated by intervals of over a century so it is extremely unlikely anyone alive today will get another chance to see a transit of Venus. As the pairs alternate between June and December, even if you do live to see 2117, the chance of getting a good view of a December transit here are remote. It will be 2247 before we get such a good view as I enjoyed that June day nearly 8 years ago. The other one of the current pair was in June 2004 and visible in late morning from the UK - I took a day off work and watched the entire event. Being a pianist, I also obtained a copy of Sousa's "Transit of Venus" march - Sousa lived at about the time of the previous pair of transits - and played it during the event. Having done so, I know why it is not often heard these days - it is not one of Sousa's more sparkling efforts! If you really must know more, visit http://en.wikipedia.org/wiki/Transit_of_Venus_March -- - Yokel - Yokel posts via a spam-trap account which is not read. |
#5
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On Feb 13, 12:06*am, Yokel wrote:
On 10/02/2012 22:42, Nick wrote: On Feb 10, 10:22 pm, *wrote: On 10/02/2012 15:31, Stan wrote: The met update has reverted back to original idea of cold feb throughout Outlook for Sunday to Tuesday: Patchy rain on Sunday, with sleet or snow possible in southeastern parts. Strong northerly winds developing on Monday and Tuesday with showers in places, these wintry in the east. Updated: 1511 on Fri 10 Feb 2012 UK Outlook for Wednesday 15 Feb 2012 to Friday 24 Feb 2012: Wintry showers are likely over some northern and eastern parts of the UK on Wednesday, with outbreaks of rain and drizzle more likely elsewhere. It will probably remain unsettled during the second half of next week and northern parts of the UK will probably see periods of rain, with snow possible on high ground, perhaps to low levels at times in the north and east. The south and west will remain drier and brighter, although with rain possible at times. Many areas should see temperatures around normal for a time next week, but it is likely to become colder than average by the following week. With the weather likely to remain unsettled, showers or longer spells of rain are likely across the UK, with further sleet and snow in places. Updated: 1231 on Fri 10 Feb 2012 UK Outlook for Saturday 25 Feb 2012 to Saturday 10 Mar 2012: The last few days of February and beginning of March are likely to see changeable weather. Temperatures are probably going to be average or below average for the time of year. Being late February/early March, this suggests that overnight frosts are still likely, especially during any quieter interludes. Showers and longer spells of rain are possible with an ongoing risk of snow, mainly in the north and east. Updated: 1233 on Fri 10 Feb 2012 Looking at the GFS medium range charts and reading between the lines of the above forecast (especially the bit about precipitation to the north and east) I think that it will not be the Russian High returning but rather the Azores High having a little wander to the north, so giving us the cold N or NW set up which Will has spoken of in another thread. *The 850 hPa temperature charts certainly show the cold air coming from somewhere near Spitzbergen or Greenland rather than somewhere near Moscow.. Aesthetically, this is much to be preferred as the cold easterlies off the Continent have a habit of being hazy in depth whilst the N or NWlies can be brilliantly clear which is nice for those who like the starry skies. *It would be nice to have a good view of the impending conjunction (close approach) of Venus and Jupiter in the evening skies.. I've noticed those two get closer and closer in the past few weeks so the conjunction is going to be pretty spectacular I should think. This must incidentally be one of the best appearances of Venus in the evening sky for some time, with Venus still clearly above the horizon as late as 8pm, almost 3 hours after sunset. Nick These apparitions of Venus happen at regular intervals. *There is a "resonance" between the orbits of Venus and Earth - 8 "Earth" years are almost exactly 13 "Venus" years - so that conjunctions (when Venus appears to pass between us and the sun [inferior], or on the far side [superior] ) and elongations (when it appears to us at its furthest from the sun) can only occur in one of five months of the year. This has been known for a long time and is mentioned in "The Da Vinci Code" book, where these five positions in the orbit of Venus - the goddess of the "Sacred Feminine" - are matched with the five points of the Pentacle - the figure representing the "Sacred Feminine". This year's inferior conjunction is in June, and Venus will actually pass across the face of the Sun early on 6 June - you will need to wake up at sunrise to see the last part of this event in the UK. *It's worth getting up for - the transits of Venus occur in pairs 8 years apart separated by intervals of over a century so it is extremely unlikely anyone alive today will get another chance to see a transit of Venus. As the pairs alternate between June and December, even if you do live to see 2117, the chance of getting a good view of a December transit here are remote. *It will be 2247 before we get such a good view as I enjoyed that June day nearly 8 years ago. The other one of the current pair was in June 2004 and visible in late morning from the UK - I took a day off work and watched the entire event. *Being a pianist, I also obtained a copy of Sousa's "Transit of Venus" march - Sousa lived at about the time of the previous pair of transits - and played it during the event. *Having done so, I know why it is not often heard these days - it is not one of Sousa's more sparkling efforts! *If you really must know more, visithttp://en.wikipedia.org/wiki/Transit_of_Venus_March -- - Yokel - Yokel posts via a spam-trap account which is not read.- Hide quoted text - - Show quoted text - What a boring piece of music, though well rendered by the band. They played it in Db (don't argue - I've got absolute pitch) though it may have been C with sharp instruments knowing brass bands, yet it is written in G. I dunno. Did Sousa write everything in 6/8 time, I wonder? The Monty Python theme is one of his and has this time signature. Sousa was probably inspired to put pen to paper by seeing a black dot on the sun. As for a Russian High - I don't think so. The wishful thinking on this group sometimes gets out of hand. Tudor Hughes, Warlingham, Surrey. |
#6
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![]() These apparitions of Venus happen at regular intervals. *There is a "resonance" between the orbits of Venus and Earth - 8 "Earth" years are almost exactly 13 "Venus" years - so that conjunctions (when Venus appears to pass between us and the sun [inferior], or on the far side [superior] ) and elongations (when it appears to us at its furthest from the sun) can only occur in one of five months of the year. Interesting - by looking at fourmilab.ch/yoursky I looked at the evening sky 13 years before several recent appearances of Venus and noticed that it was there again, in a very similar position. ISTR all prominent appearances of Venus being in the earlier part of the year - February through to about June - would this fit in with the elongations only occurring at certain times of year? By late March it looks like Venus will be visible until 2230 GMT / 2330 BST - four hours after sunset and thus visible in complete darkness for a good while. Nick |
#7
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On Feb 13, 8:16*am, Nick wrote:
These apparitions of Venus happen at regular intervals. *There is a "resonance" between the orbits of Venus and Earth - 8 "Earth" years are almost exactly 13 "Venus" years - so that conjunctions (when Venus appears to pass between us and the sun [inferior], or on the far side [superior] ) and elongations (when it appears to us at its furthest from the sun) can only occur in one of five months of the year. Interesting - by looking at fourmilab.ch/yoursky I looked at the evening sky 13 years before several recent appearances of Venus and noticed that it was there again, in a very similar position. ISTR all prominent appearances of Venus being in the earlier part of the year - February through to about June - would this fit in with the elongations only occurring at certain times of year? By late March it looks like Venus will be visible until 2230 GMT / 2330 BST - four hours after sunset and thus visible in complete darkness for a good while. Nick The spring elongations are the most easily observed because the ecliptic (the plane of the earth's orbit) makes a large angle with the horizon (over 60°) around sunset. This applies to the waxing moon and to all the planets. In the autumn the angle is much less (typically 14°) and Venus will be much lower in the sky even if 45° from the sun in azimuth. On the other hand when Venus is west of the sun (i.e. to the right of it) it is most prominent in the autumn but before sunrise so far fewer people see it. This year greatest western elongation occurs in mid-August so the planet will be prominent in the morning autumn sky as well. If inferior conjunction takes place near the winter solstice (e.g. Jan 15 2006) Venus is poorly seen at both eastern and western elongations. Tudor Hughes, Warlingham, Surrey. |
#8
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"Nick" wrote in message
... Interesting - by looking at fourmilab.ch/yoursky I looked at the evening sky 13 years before several recent appearances of Venus and noticed that it was there again, in a very similar position. You should have looked 8 years before, not 13, since 8 (Earth) years is almost equal to 13 Venusian 'years'. 13 years is the equivalent of about 169/8 Venusian years or just over 21, so the planet would not be in the same position relative to us, although it would be fairly close, having moved about 1/8 of its orbital cycle. |
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