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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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On 7 Mar, 10:01, "Martin Rowley"
wrote: http://www.metoffice.gov.uk/weather/..._warnings.html Martin. -- Martin Rowley E: W: booty.org.uk Spring Tides on Monday. I would have thought there must be a good chance of coastal flooding at the top of the Bristol Channel if the predictions prove correct. Force 9-11 over the sea of the north coast of SW England blowing the water straight up the Bristol Channel & a pressure of 970mb to help the level rise further. The swell swell forecast is also impressive http://magicseaweed.com/UK-Ireland-MSW-Surf-Charts/1/ , which might test the Bude sea defences. Graham Penzance |
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Graham Easterling wrote in message
... On 7 Mar, 10:01, "Martin Rowley" wrote: http://www.metoffice.gov.uk/weather/..._warnings.html Martin. -- Martin Rowley E: W: booty.org.uk Spring Tides on Monday. I would have thought there must be a good chance of coastal flooding at the top of the Bristol Channel if the predictions prove correct. Force 9-11 over the sea of the north coast of SW England blowing the water straight up the Bristol Channel & a pressure of 970mb to help the level rise further. The swell swell forecast is also impressive http://magicseaweed.com/UK-Ireland-MSW-Surf-Charts/1/ , which might test the Bude sea defences. Graham Penzance Its not just the depth but the breadth of coverage of fairly low pressure that ends up feeding that dome of sea water into the north North sea. This coming one is broad. The spring tide on Monday is in the top 15 percent of all high water heights predicted for this year, before adding the surge and any local low track and wind effects. For central south coast the midnight tide mon/tue will be interesting |
#4
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The spring tide on Monday is in the top 15 percent
of all high water heights predicted for this year Actually, it's one of the 5 highest tides of the year at Newquay, putting it in the top 1% of tides this year. You have to wait until October for a tide as high as Monday morning's to occur again. Bad timing I'd say. Graham Penzance |
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Graham Easterling wrote in message
... The spring tide on Monday is in the top 15 percent of all high water heights predicted for this year Actually, it's one of the 5 highest tides of the year at Newquay, putting it in the top 1% of tides this year. You have to wait until October for a tide as high as Monday morning's to occur again. Bad timing I'd say. Graham Penzance For Portsmouth there are 105 predicted tides of 4.7m or higher in 2008, Monday is predicted as 4.7m. About 710 tides in the year, so I make it about 15 percent. I can't believe that Newquay is that much different in that aspect of the tides. I will run Xtide32 for Newquay tomorrow and see what emerges |
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N Cook wrote in message
... Graham Easterling wrote in message ... The spring tide on Monday is in the top 15 percent of all high water heights predicted for this year Actually, it's one of the 5 highest tides of the year at Newquay, putting it in the top 1% of tides this year. You have to wait until October for a tide as high as Monday morning's to occur again. Bad timing I'd say. Graham Penzance For Portsmouth there are 105 predicted tides of 4.7m or higher in 2008, Monday is predicted as 4.7m. About 710 tides in the year, so I make it about 15 percent. I can't believe that Newquay is that much different in that aspect of the tides. I will run Xtide32 for Newquay tomorrow and see what emerges I was confusing Portsmouth and Southampton data, 4.7m predicted for Soton, Monday for Monday. For Pompey it is 4.8m predicted , 56 tides of 4.8m or more so about top 8 per cent |
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On 7 Mar, 19:15, "N Cook" wrote:
Graham Easterling wrote in message ... The spring tide on Monday is in the top 15 percent of all high water heights predicted for this year Actually, it's one of the 5 highest tides of the year at Newquay, putting it in the top 1% of tides this year. You have to wait until October for a tide as high as Monday morning's to occur again. Bad timing I'd say. Graham Penzance For Portsmouth *there are 105 predicted tides of 4.7m or higher in 2008, Monday is predicted as 4.7m. About 710 tides in the year, so I make it about 15 percent. I can't believe that Newquay is that much different in that aspect of the I've doubled checked with another set of tidetables, which makes it the 3rd highest of the year, Newlyn virtually the same. I've also checked easytide online, which gives 7.3m for Newquay Monday. The highest for the year is normally about 7.4. Best believe it! Southampton is a a very abnormal position. Graham Penzance |
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On Fri, 7 Mar 2008 11:49:22 -0800 (PST), Graham Easterling
wrote: On 7 Mar, 19:15, "N Cook" wrote: Graham Easterling wrote in message ... The spring tide on Monday is in the top 15 percent of all high water heights predicted for this year Actually, it's one of the 5 highest tides of the year at Newquay, putting it in the top 1% of tides this year. You have to wait until October for a tide as high as Monday morning's to occur again. For Portsmouth *there are 105 predicted tides of 4.7m or higher in 2008, Monday is predicted as 4.7m. About 710 tides in the year, so I make it about 15 percent. I can't believe that Newquay is that much different in that aspect of the I've doubled checked with another set of tidetables, which makes it the 3rd highest of the year, Newlyn virtually the same. I've also checked easytide online, which gives 7.3m for Newquay Monday. The highest for the year is normally about 7.4. Southampton is a a very abnormal position. It's not that abnormal tides-wise, apart from the extended high tide followed by a rapid drop to low water. I live near the mouth of Southampton Water and at Calshot (on the opposite side from me) high tide is predicted as 4.8m - one of only 3 in the year (the other two are in April) so that's in the top half of one percent for the year. Low tide is predicted as 0.4m and that's one of only 5 in the year (the other 4 are in April) so that's under the 1% too. I'm interested in exploring rarely exposed sand and shingle banks at such times, especially when pressure is high (pity about the developing low!) but I'm there at high tide too, often trying to resist getting blown over. ![]() -- Dave Fareham |
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Graham Easterling wrote in message
... On 7 Mar, 19:15, "N Cook" wrote: Graham Easterling wrote in message ... The spring tide on Monday is in the top 15 percent of all high water heights predicted for this year Actually, it's one of the 5 highest tides of the year at Newquay, putting it in the top 1% of tides this year. You have to wait until October for a tide as high as Monday morning's to occur again. Bad timing I'd say. Graham Penzance For Portsmouth there are 105 predicted tides of 4.7m or higher in 2008, Monday is predicted as 4.7m. About 710 tides in the year, so I make it about 15 percent. I can't believe that Newquay is that much different in that aspect of the I've doubled checked with another set of tidetables, which makes it the 3rd highest of the year, Newlyn virtually the same. I've also checked easytide online, which gives 7.3m for Newquay Monday. The highest for the year is normally about 7.4. Best believe it! Southampton is a a very abnormal position. Graham Penzance We're only quibling over inches really. The Monday midday tide at Portsmouth predicted at 4.9m, 18 of these or more this year so top 2.5 percent. I wonder what the 14.15, 6.4m, no higher this year, Thames Estuary tide will be like. Anyone know of a webcam covering the Thames barrage? 5.5m above mean sea level at Woolwich is the design breach level. Mean sea level at Woolwich about 3.2m. So about 2.3m above predicted for Monday is the over-top level Has any of the gates ever failed, eg pushbike jammed between fixed and moving parts ? |
#10
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![]() I'm interested in exploring rarely exposed sand and shingle banks at such times, especially when pressure is high (pity about the developing low!) but I'm there at high tide too, often trying to resist getting blown over. ![]() -- Dave Fareham- Hide quoted text - Same here! Pednvounder is a small nudist beach just round from Porthcurno, quite difficult access. But at low water on a big Spring huge areas of flat sand are exposed and you can easily walk around from Porthcurno. http://www.treenvillage.co.uk/mediac...00_2028_1b.jpg and http://www.flickr.com/photos/kernows...ol-beachandsea The water in the pools that are left can get really warm. Graham |
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