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Snow anticipation
Going to get some at home for sure with that polar low running down the
Tamar (T+48 FAX). But look at the forecast for high Dartmoor http://www.metoffice...Time=1484352000 -3C, heavy snow and strong winds. I feel a walk high up coming on on Saturday (just 40 minutes drive to the really deep snow), now where did I put those pesky snow shoes ..... (and shovel for the drifts) :-) Will -- " Some sects believe that the world was created 5000 years ago. Another sect believes that it was created in 1910 " http://www.lyneside.demon.co.uk/Hayt...antage_Pro.htm Will Hand (Haytor, Devon, 1017 feet asl) --------------------------------------------- |
Snow anticipation
On Wednesday, 11 January 2017 09:25:43 UTC, wrote:
Going to get some at home for sure with that polar low running down the Tamar (T+48 FAX). But look at the forecast for high Dartmoor http://www.metoffice...Time=1484352000 -3C, heavy snow and strong winds. I feel a walk high up coming on on Saturday (just 40 minutes drive to the really deep snow), now where did I put those pesky snow shoes ..... (and shovel for the drifts) :-) Will -- " Some sects believe that the world was created 5000 years ago. Another sect believes that it was created in 1910 " http://www.lyneside.demon.co.uk/Hayt...antage_Pro.htm Will Hand (Haytor, Devon, 1017 feet asl) --------------------------------------------- Hmm I wonder why snow shoes are 'pesky'. I would have thought they were handy or better still footy, but pesky? That implies if they are so pesky then don't use them or put them on E-Bay |
Snow anticipation
SNIP
Going to get some at home for sure with that polar low running down the Tamar (T+48 FAX). Will -- It's that sort of feature that can give a very strong wind here, often a good deal more than the a glance at the isobars suggests, due to the Lands' End peninsula squeezing the flow and also a funnelling effect down the NNW-SSE orientated valleys (a feature resulting from a tilting of the approx 300' raised beach) For those that know the area Chapel Carn Brea was an island, now surrounded by the 30' plateau. (Well 250' towards the south 350' along the north coast.) Sorry, drifting back into my geomorphology days. Graham Penzance |
Snow anticipation
On Wednesday, 11 January 2017 10:10:30 UTC, Lawrence Jenkins wrote:
On Wednesday, 11 January 2017 09:25:43 UTC, wrote: Going to get some at home for sure with that polar low running down the Tamar (T+48 FAX). But look at the forecast for high Dartmoor http://www.metoffice...Time=1484352000 -3C, heavy snow and strong winds. I feel a walk high up coming on on Saturday (just 40 minutes drive to the really deep snow), now where did I put those pesky snow shoes ..... (and shovel for the drifts) :-) Will -- " Some sects believe that the world was created 5000 years ago. Another sect believes that it was created in 1910 " http://www.lyneside.demon.co.uk/Hayt...antage_Pro.htm Will Hand (Haytor, Devon, 1017 feet asl) --------------------------------------------- Hmm I wonder why snow shoes are 'pesky'. I would have thought they were handy or better still footy, but pesky? It is because they are not handy that they are pesky. They have slowing been burying themselves under other rubbish over the last four or five years. Just another problem caused by global warming :-) |
Snow anticipation
On Wednesday, 11 January 2017 10:14:52 UTC, Graham Easterling wrote:
SNIP Going to get some at home for sure with that polar low running down the Tamar (T+48 FAX). Will -- It's that sort of feature that can give a very strong wind here, often a good deal more than the a glance at the isobars suggests, due to the Lands' End peninsula squeezing the flow and also a funnelling effect down the NNW-SSE orientated valleys (a feature resulting from a tilting of the approx 300' raised beach) For those that know the area Chapel Carn Brea was an island, now surrounded by the 30' plateau. (Well 250' towards the south 350' along the north coast.) Sorry, drifting back into my geomorphology days. Graham Penzance Do you mean a 300' plateau? When would that have been formed, the Eemian? |
Snow anticipation
On Wednesday, January 11, 2017 at 11:24:52 AM UTC, Alastair wrote:
On Wednesday, 11 January 2017 10:14:52 UTC, Graham Easterling wrote: SNIP Going to get some at home for sure with that polar low running down the Tamar (T+48 FAX). Will -- It's that sort of feature that can give a very strong wind here, often a good deal more than the a glance at the isobars suggests, due to the Lands' End peninsula squeezing the flow and also a funnelling effect down the NNW-SSE orientated valleys (a feature resulting from a tilting of the approx 300' raised beach) For those that know the area Chapel Carn Brea was an island, now surrounded by the 30' plateau. (Well 250' towards the south 350' along the north coast.) Sorry, drifting back into my geomorphology days. Graham Penzance Do you mean a 300' plateau? When would that have been formed, the Eemian? The 300' raised beach (or plateau as it is today) is a dominant feature in the far SW - basically the Land's End peninsula. There are large numbers of other raised beach levels, but none come close to dominating the landscape like the 300' one does. This is the view from Chapel Carn Brea, 3 miles from Lands End looking across the 300' 'beach' (now a plateau!) http://www.themodernantiquarian.com/...size/88923.jpg It is slightly tilted SSE, which is the direction most of the rivers flow (check an OS map & you'll see) Along the north coast from Cape Cornwall to St Ives the 'beach is narrower, and has resulted in a farmed area between the cliffs & the moors. Seen rather well here https://www.cornwalls.co.uk/sites/de...om-sperris.jpg. The view from Cape Cornwall from Sennen probably shows the raised beach best http://c8.alamy.com/comp/B70P1W/senn...all-B70P1W.jpg A consistent 300' cliff where the sea has subsequently eroded back into it. There's a lot on ages of the various levels if you do as bit of googling. It's a very complex sequence of events. Graham Penzance |
Snow anticipation
In message , Eskimo Will
writes Going to get some at home for sure with that polar low running down the Tamar (T+48 FAX). But look at the forecast for high Dartmoor http://www.metoffice...Time=1484352000 -3C, heavy snow and strong winds. I feel a walk high up coming on on Saturday (just 40 minutes drive to the really deep snow), now where did I put those pesky snow shoes ..... (and shovel for the drifts) :-) Will Potentially a very interesting day tomorrow in SE England. The computerised hourly forecast for Cranleigh on the MO website shows rain setting in around 11am, and becoming heavy during the afternoon, with temperatures around 5C. In late afternoon the wind veers towards the NW and the temperature starts to fall, so that we have: 17:00 3C heavy sleet WNW 16mph gusting 32 18:00 0C heavy snow NW 24mph gusting 48 19:00 0C heavy snow NW 20mph gusting 39 20:00 1C slight snow WNW 16 mph gusting 32 After that the weather improves, though by late evening the temperature is down to -1C, implying very icy conditions whether or not the snow lies (which if that forecast is totally accurate it would do, of course). I realise it's odds against it panning out quite like that, giving the degree of uncertainty that the (human) forecasters admit to, but even a close approximation could give a substantial amount of drifting snow, especially over the Downs and Chilterns. I'm not very good at interpreting TAFs, but as far as I can make out those for Heathrow and Gatwick tell a story that's pretty much consistent with that computerised Cranleigh forecast (I'm pretty much halfway between the two airports). -- John Hall "One can certainly imagine the myriad of uses for a hand-held iguana maker" Hobbes (the tiger, not the philosopher!) |
Snow anticipation
On Wednesday, 11 January 2017 14:20:24 UTC, Graham Easterling wrote:
On Wednesday, January 11, 2017 at 11:24:52 AM UTC, Alastair wrote: On Wednesday, 11 January 2017 10:14:52 UTC, Graham Easterling wrote: SNIP Going to get some at home for sure with that polar low running down the Tamar (T+48 FAX). Will -- It's that sort of feature that can give a very strong wind here, often a good deal more than the a glance at the isobars suggests, due to the Lands' End peninsula squeezing the flow and also a funnelling effect down the NNW-SSE orientated valleys (a feature resulting from a tilting of the approx 300' raised beach) For those that know the area Chapel Carn Brea was an island, now surrounded by the 30' plateau. (Well 250' towards the south 350' along the north coast.) Sorry, drifting back into my geomorphology days. Graham Penzance Do you mean a 300' plateau? When would that have been formed, the Eemian? The 300' raised beach (or plateau as it is today) is a dominant feature in the far SW - basically the Land's End peninsula. There are large numbers of other raised beach levels, but none come close to dominating the landscape like the 300' one does. This is the view from Chapel Carn Brea, 3 miles from Lands End looking across the 300' 'beach' (now a plateau!) http://www.themodernantiquarian.com/...size/88923.jpg It is slightly tilted SSE, which is the direction most of the rivers flow (check an OS map & you'll see) Along the north coast from Cape Cornwall to St Ives the 'beach is narrower, and has resulted in a farmed area between the cliffs & the moors. Seen rather well here https://www.cornwalls.co.uk/sites/de...om-sperris.jpg. The view from Cape Cornwall from Sennen probably shows the raised beach best http://c8.alamy.com/comp/B70P1W/senn...all-B70P1W.jpg A consistent 300' cliff where the sea has subsequently eroded back into it. There's a lot on ages of the various levels if you do as bit of googling. It's a very complex sequence of events. Graham Penzance Thanks Graham. |
Snow anticipation
On Wednesday, 11 January 2017 09:25 UTC, wrote:
Going to get some at home for sure with that polar low running down the Tamar (T+48 FAX). But look at the forecast for high Dartmoor http://www.metoffice...Time=1484352000 -3C, heavy snow and strong winds. I feel a walk high up coming on on Saturday (just 40 minutes drive to the really deep snow), now where did I put those pesky snow shoes ..... (and shovel for the drifts) :-) https://groups.google.com/forum/?hl=...es/5oYs5hZk6Cs |
Snow anticipation
On 11/01/2017 21:25, John Hall wrote:
In message , Eskimo Will writes Going to get some at home for sure with that polar low running down the Tamar (T+48 FAX). But look at the forecast for high Dartmoor http://www.metoffice...Time=1484352000 -3C, heavy snow and strong winds. I feel a walk high up coming on on Saturday (just 40 minutes drive to the really deep snow), now where did I put those pesky snow shoes ..... (and shovel for the drifts) :-) Will Potentially a very interesting day tomorrow in SE England. The computerised hourly forecast for Cranleigh on the MO website shows rain setting in around 11am, and becoming heavy during the afternoon, with temperatures around 5C. In late afternoon the wind veers towards the NW and the temperature starts to fall, so that we have: 17:00 3C heavy sleet WNW 16mph gusting 32 18:00 0C heavy snow NW 24mph gusting 48 19:00 0C heavy snow NW 20mph gusting 39 20:00 1C slight snow WNW 16 mph gusting 32 After that the weather improves, though by late evening the temperature is down to -1C, implying very icy conditions whether or not the snow lies (which if that forecast is totally accurate it would do, of course). I realise it's odds against it panning out quite like that, giving the degree of uncertainty that the (human) forecasters admit to, but even a close approximation could give a substantial amount of drifting snow, especially over the Downs and Chilterns. I'm not very good at interpreting TAFs, but as far as I can make out those for Heathrow and Gatwick tell a story that's pretty much consistent with that computerised Cranleigh forecast (I'm pretty much halfway between the two airports). I work up Holmbury hill so it could be interesting trying to get there on Friday morning if the worst happens. I'm hoping at the moment that Southern Rail doesn't fall apart tomorrow and I can get home from London in the evening. I don't fancy trying to cycle 40 miles home on a cold icy winter night. |
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