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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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That is why I am still going for long extended dry spells this summer. OK
that is more for England and Wales than Scotland and NI but I still fancy it will hold good as the ascending moist air continues to get forced northwards. No proper rain down here as you know for weeks now and I cannot see much in the future either (apart from one or two storms or the odd cold front if we are lucky). Will I've noticed that for quite a while this spring/summer that the models have over-stated any rainfall and have been pessimistic in their forecast, predicting low pressure systems further south and east than they actually end up coming. I am presuming then, that this pattern is likely to continue for the rest of the summer? Do you think that the Azores High will strongly build back further north towards us as we go through the 2nd half of July and into August? It often has in the past and Lamb referred to it in the English Climate as doing so (he says that the Jet Stream often moves a little northwards after reaching its lowest position in early July). Haven't got the book to hand so I cannot double-check. _____________________ Nick Otter Valley, Devon 83 m amsl http://www.ottervalley.co.uk "Will Hand" wrote in message news:0%mZn.103917$vB5.93637@hurricane... Hi Paul, do you consider upper air forcing, ageostrophic effects etc in the upper air when you try and put weather to the surface charts? This does not mean it will be high pressure but you don't need high pressure for it to be predominantly dry, just the right upper air patterns to produce the ageostrophic effects that will produce descent as opposed to ascent. Ciao, Will -- |
#12
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![]() "Nick Gardner" wrote in message ... That is why I am still going for long extended dry spells this summer. OK that is more for England and Wales than Scotland and NI but I still fancy it will hold good as the ascending moist air continues to get forced northwards. No proper rain down here as you know for weeks now and I cannot see much in the future either (apart from one or two storms or the odd cold front if we are lucky). Will I've noticed that for quite a while this spring/summer that the models have over-stated any rainfall and have been pessimistic in their forecast, predicting low pressure systems further south and east than they actually end up coming. He he I know and they have been fooling a lot of people who rely on just using models to forecast! Having said that I'm going for a bit of rain midweek down here, more up north, and windy at times too, but then after that I'm expecting the Azores high to ridge north in the Atlantic due to a change in the long wave pattern. The high should then topple and bring the UK a long fine and settled spell but without record breaking heat in the UK, something I have said all along this summer. Cheers, Will -- |
#13
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pattern. The high should then topple and bring the UK a long fine and
settled spell but without record breaking heat in the UK, something I have said all along this summer. That sounds good to me Will. The outlaws are coming over for a couple of weeks near the end of July and I was hoping for some good weather this time. Last year wasn't bad but it was often cloudy which spoilt the days on the beach. _____________________ Nick Otter Valley, Devon 83 m amsl http://www.ottervalley.co.uk |
#14
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![]() "Nick Gardner" wrote in message ... pattern. The high should then topple and bring the UK a long fine and settled spell but without record breaking heat in the UK, something I have said all along this summer. That sounds good to me Will. The outlaws are coming over for a couple of weeks near the end of July and I was hoping for some good weather this time. Last year wasn't bad but it was often cloudy which spoilt the days on the beach. _____________________ No problem Nick, anytime you need a forecast just ask! Be nice to the outlaws :-) Will -- |
#15
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On Jul 8, 11:51*am, Dawlish wrote:
On Jul 4, 9:50*pm, Dawlish wrote: On Jul 4, 8:45*pm, "Keith (Southend)G" wrote: On Jul 4, 8:15*pm, Dawlish wrote: It's not looking good as July progresses. the charts are looking more and more unsettled and I feel I can now extend my forecast of more unsettled weather out to the 14th. The gfs, ECM, GEM and the JMA to (T192) are in full agreement and the gfs and the ECM have been very consistent about this for days. **at T240, on 14th June, the UK will be experiencing an unsettled spell of weather, dominated by low pressure. All areas will be under threat of rain, though the NW will be the wettest area and any warmth at this time and in the week previous, will be provided by warm air drawn northwards by approaching Atlantic lows and not by dominant ridging of the Azores high. Pressure will be lower to the north, or NW and the only area that could be experiencing pressure 1020mb in 10 days time will be the far SE, if any is at all. Winds will be between S and NW over much of the UK** I'm not buying this dry and settled weather, at least not for the first half of July. Hi Dawlish, I just posted El Niņo/La Niņa, but I think GFS is an outlier for the July breakdown scenario, especially for us down south. Keith (Southend)http://www.southendweather.net "Weather Home & Abroad"- Hide quoted text - - Show quoted text - Outlier? Are you sure? Have you seen the last 8 runs of the gfs, the ECM 12z, the GEM 12z and the JMA 12z? Also, the gfs ensembles show that the 12z is anything *but* an outlier at T+240. http://www.netweather.tv/index.cgi?a...nsviewer;sess= I wish it was an outlier Keith and I wish the 12z ECM showed a more encouraging scenario! The breakdown has already begun. I want sun and more sun no matter what the present NWP output shows!!! (pouts, screams and kicks arms and legs a lot!)- Hide quoted text - - Show quoted text - I'm still happy about this forecast, 4 days in and for the one that achieves outcome tomorrow. The pattern has changed, at least for a while and I can't understand the MetO sticking rigidly to this forecast: "Outlook for Thursday 22 Jul 2010 to Thursday 5 Aug 2010: There are indications that there may be a good deal of dry and warm weather during the second half of July and into the start of August, with many places seeing temperatures above normal for much of the period. Some areas will be drier than normal with average or below average rainfall, although more unsettled conditions may well persist for longer in western Scotland and Northern Ireland. Sunshine amounts look to be around normal for this time of year across Northern Ireland and Scotland, but are likely to be somewhat above average in England and Wales. Updated: 1224 on Wed 7 Jul 2010" It could change back, of course, but I'd love to know the present reasoning behind keeping this current 2-4 week forecast, which has sat there, in one form, or another, only altering the date, throughout the model changes of the last 10 days. I think it will change soon. Maybe someone's just forgotten about it? That would reflect the MetO's forecast priority list for sure - and they are probably absolutely right in their priorities. No-one can forecast at 2-4 weeks, or seasonally, with any expectation of high accuracy, IMO. The Met Office know that very well. I'm really hoping the forecasts of a long, hot, dry summer prove to be right, but a summer dominated by the Azores high will have to see quite a change in the present model conditions to leave us with memories of droughts! Still got my fingers crossed for 90F this weekend somewhere in the SE. * 8)) * *I wonder just how warm it will get for Colin in Brussels?- Hide quoted text - - Show quoted text - The forecast for 2-4 weeks is changing a little. Mainly because the 6-15 day forecast is beginning to realise that it is likely to become more unsetteld for most: 2-4 weeks: UK Outlook for Saturday 24 Jul 2010 to Saturday 7 Aug 2010: The warm theme is expected to continue in southern parts of the UK, with much of England and Wales seeing temperatures above average. Scotland, Northern Ireland and, at times, northeast England are likely to experience temperatures closer to normal. Sunshine amounts seem likely to be around average for the time of year and rainfall totals should also be generally near normal, though Scotland may turn out to be slightly wetter at times. 6-15 day: UK Outlook for Wednesday 14 Jul 2010 to Friday 23 Jul 2010: An unsettled start to the period across the UK, with most places seeing rain at times. This will be most persistent and locally heavy in northern and western parts of the UK and it will also be windy here with a risk of gales in exposed northwestern areas. The best of the drier interludes during this time will be in the southeastern section of the UK. Over the weekend and the following week, it will remain unsettled and often windy in the northern half of the UK, but southern areas will become generally drier and warmer. Temperatures throughout the period are likely to be around normal in the north, though feeling cool in rain, but warm in the south and locally very warm in some southeastern areas. Updated: 1202 on Fri 9 Jul 2010 Still likely to be pretty warm (and mainly dry) in the SE though. I'm sure there will soon be talk of water restrictions there. |
#16
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On Jul 4, 8:15*pm, Dawlish wrote:
It's not looking good as July progresses. the charts are looking more and more unsettled and I feel I can now extend my forecast of more unsettled weather out to the 14th. The gfs, ECM, GEM and the JMA to (T192) are in full agreement and the gfs and the ECM have been very consistent about this for days. **at T240, on 14th June, the UK will be experiencing an unsettled spell of weather, dominated by low pressure. All areas will be under threat of rain, though the NW will be the wettest area and any warmth at this time and in the week previous, will be provided by warm air drawn northwards by approaching Atlantic lows and not by dominant ridging of the Azores high. Pressure will be lower to the north, or NW and the only area that could be experiencing pressure 1020mb in 10 days time will be the far SE, if any is at all. Winds will be between S and NW over much of the UK** I'm not buying this dry and settled weather, at least not for the first half of July. The gfs, unfortunately, wasn't an outlier Keith and whatever other effects I should have considered haven't produced dry and settled weather Will! 8)) The MetO 2-4 week forecast, from a week ago, by the look of today's models appears to have been a tea break fantasy (which I've often said it is.......!) It's autumnal in some parts of the North today! Very unsettled; rain for many through the day, windy, with perhaps, the longed for thunder for some and more to come before it settes down nicely for the weekend........before returning to the unsettled theme next week. This forecast was good. 69 correct out of 87 forecasts = 79.3% I'm not buying into the dry and settled weather for most of the second half of July either! |
#17
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![]() what a pile of **** come on then, explain why your better than that supercomputer in exeter why dont you? give us some stats. you obviously are full of hot air, cos of those bouys hanging around your arse no doubt. On 14/07/2010 8:01 AM, Dawlish wrote: On Jul 4, 8:15 pm, wrote: 69 correct out of 87 forecasts = 79.3% |
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