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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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#11
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Further revision downwards -
Now 53 knots (61 mph) estimated for 10m. (There was still a mistake in calculation). Fits in well with forecast I did yesterday too! Not been my best day due to lack of sleep :-( Will. -- "Will Hand" wrote in message ... Re other thread. After some work, some thought, and looking at other data/damage in area etc I have revised my 10m gust estimate downwards to 57 knots or 65 mph (still a personal high) . 41 knots at 3m measured (previous highest was 32 knots). Cheers, Will. -- "Will Hand" wrote in message ... 0930 What a night. Front came through at 0415 with a temperature drop of 3 degrees and a massive gust of 68 knots (81 mph) calculated at 10m agl, recorded 3 metre gust was 41 knots (49 mph). I did say I expected the strongest wind to be on the front. This is my highest recorded gust so far. I am relieved to say that there has been no damage to the house as far as I can tell. That was higher than expected as I am fairly sheltered from the south. Rainfall 30 mm BTW. Will. -- ------------------------------------------------------------------------------ - A COL BH site in East Dartmoor at Haytor, Devon 310m asl (1017 feet). mailto: www: http://www.lyneside.demon.co.uk/Hayt...antage_Pro.htm DISCLAIMER - All views and opinions expressed by myself are personal and do not necessarily represent those of my employer. ------------------------------------------------------------------------------ - |
#12
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On Sun, 3 Dec 2006 12:26:25 +0000, Dave Wheeler wrote:
Chosing the best site for a low-level anemometer is extremely important. For example, in any wind situation, using a hand-held (cica 2m) anemo, I can get a very wide range of values. As low as 1% (stand in the lee of a building) to 60-80% above (look for funneling effect) that of the 10m value when the correction for height is added. Couldn't agree more Dave. Depending where you stand around this house is the difference between "Wind, what wind?" and being knocked of your feet. The layout of the house and barn is "L" shaped with the point of the "L" into the prevailing wind direction and I doubt that that is coincidence. Stand in the crook of the L and it might be a bit blustery but that is all. Stand at one of the extremities and be careful. Walking out past the end, forgetting it's windy, can be a very nasty surprise. Luckily we managed to get a few essential supplies in by air last week - fresh fruit. Keep scurvy away? No - included lemons for the G&Ts! Lemons = citrus fruit, will keep Scurvy away. Scurvy is lack of vitamin C. Mind you ... were rapidly running out of beer as well as other 'essential' (liquid) supplies!! Now that is *FAR* more serious. B-) -- Cheers Dave. pam is missing e-mail |
#13
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Dave Wheeler wrote:
Not so good on the sea though with extremely rough conditions persisting. Last time our boat managed it across to the Shetland mainland was 12 days ago. I was reading about your ferry recently, Dave. Designed like a trawler for the rough crossing. And the cabin seats have airline-style seat belts. Makes our RORO crossing look like a trip on a boating lake! -- Steve Loft Sanday, Orkney. 5m ASL http://sanday.org.uk/weather |
#14
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MCC wrote:
Having watched the "Good Shepherd" roll like a pig in the Sumburgh Roost from the safety of dry land, I chose to fly in by Coastguard helicopter on the one occasion when I was fortunate enough to visit Fair Isle :-) Probably a wise move. Personally, I'd probably stick to the boat, as I'm a better sailor than flyer, and I've never been in a helicopter at all before, never mind in stormy weather! -- Steve Loft Sanday, Orkney. 5m ASL http://sanday.org.uk/weather |
#15
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![]() weaman wrote: For heavens sake Will, if you need warning of last nights events I suggest you move pronto. You will have worse without doubt. It was nothing special over the south, even the southwest, and was massively overhyped. When the equivalent of Oct 87 or some of the early 90's storms are threatening the southeast again, nobody will be taking any notice of the warnings. I'm not blaming the Exeter forecasters: the Met Office early warning had only 40% risk for the SE - but that was not the way it was portrayed by the weather presenters. Exactly. Which is what I said before. He is not actually on Dartmoor, he is on the southern jessie version of Dartmoor, which is as close to a supermarket as he can get. 60mph and you have a sleepless night? FFS we dont actually want these kind of people pretending to be hardy hillside locals. 90 mph will come within 5 years, mark my words. |
#16
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04/12/2006 17:30:20
Steve Loft wrote in message MCC wrote: Having watched the "Good Shepherd" roll like a pig in the Sumburgh Roost from the safety of dry land, I chose to fly in by Coastguard helicopter on the one occasion when I was fortunate enough to visit Fair Isle :- ) Probably a wise move. Personally, I'd probably stick to the boat, as I'm a better sailor than flyer, and I've never been in a helicopter at all before, never mind in stormy weather! -- Steve Loft Sanday, Orkney. 5m ASL http://sanday.org.uk/weather Not a boat day today - pressure of 960hPa or less over the area does not help subdue the sea! However we did get in two inter-island flights (no freight). The first one was fine as the wind was just 13kt from 210deg - not much off the runway heading of 240 and a smooth profile up the Isle. Not so the second flight! With the low centre moving north the wind had veered 290deg and increased 23kt gst 33kt. Landing was OK, but the take-off rather heart-in-mouth as, coming across the high west cliffs and with CB development in the neighbourhood, the wind was very 'fickle' - real seat of the pants flying! Hopefully a boat day tomorrow. As there are no passengers booked the crew can rough it a bit! Dave Fair Isle |
#17
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![]() wrote in message ps.com... weaman wrote: For heavens sake Will, if you need warning of last nights events I suggest you move pronto. You will have worse without doubt. It was nothing special over the south, even the southwest, and was massively overhyped. When the equivalent of Oct 87 or some of the early 90's storms are threatening the southeast again, nobody will be taking any notice of the warnings. I'm not blaming the Exeter forecasters: the Met Office early warning had only 40% risk for the SE - but that was not the way it was portrayed by the weather presenters. Exactly. Which is what I said before. He is not actually on Dartmoor, he is on the southern jessie version of Dartmoor, which is as close to a supermarket as he can get. 60mph and you have a sleepless night? FFS we dont actually want these kind of people pretending to be hardy hillside locals. 90 mph will come within 5 years, mark my words. Actually I live on the eastern side, but hey, never mind John, keep taking the tablets. Will. -- |
#18
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![]() wrote in message ps.com... 90 mph will come within 5 years, mark my words. Mean or gust? LOL Will. -- |
#19
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Again, Mr Hindsight is the best forecaster! I had a look at the radar rainfall
imagery in some detail today. Strong evidence of line convection on the front and (as Jon mentioned) an 80 knot (92 mph) gradient wind. Bring that down in a convective downburst and you have havoc, indeed worse gusts than the 1987 storm, but obviously not lasting long in any one place. Parts of Plymouth had over 90 mph gusts and the damage runs into millions of pounds according to Spotlight (a lot it yachts of course). So OK quite localised and it won't be rembered for long but *potentially at the time* it was a serious developing situation. As for moving, not a chance, I'm here to stay, I love the wild weather and walking in the hills, but I reserve the right to get anxious when it blows and line convection beckons, who doesn't to be honest? Will. -- "weaman" wrote in message ... For heavens sake Will, if you need warning of last nights events I suggest you move pronto. You will have worse without doubt. It was nothing special over the south, even the southwest, and was massively overhyped. When the equivalent of Oct 87 or some of the early 90's storms are threatening the southeast again, nobody will be taking any notice of the warnings. I'm not blaming the Exeter forecasters: the Met Office early warning had only 40% risk for the SE - but that was not the way it was portrayed by the weather presenters. wrote in message ... 0930 What a night. Front came through at 0415 with a temperature drop of 3 degrees and a massive gust of 68 knots (81 mph) calculated at 10m agl, recorded 3 metre gust was 41 knots (49 mph). I did say I expected the strongest wind to be on the front. This is my highest recorded gust so far. I am relieved to say that there has been no damage to the house as far as I can tell. That was higher than expected as I am fairly sheltered from the south. Rainfall 30 mm BTW. Will. -- ------------------------------------------------------------------------------ - A COL BH site in East Dartmoor at Haytor, Devon 310m asl (1017 feet). mailto: www: http://www.lyneside.demon.co.uk/Hayt...antage_Pro.htm DISCLAIMER - All views and opinions expressed by myself are personal and do not necessarily represent those of my employer. ------------------------------------------------------------------------------ - |
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