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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 start of August certainly looks as if it will be characterised by
low-pressure dominance. My forecast of that, for the 3rd August, presently looks like that will achieve outcome and we're already seeing the effects of that falling pressure in the weather changes over the last 24 hours. After that, any ideas? Hints of the Azores High ridging towards us at T240, on both the gfs and the ECM, so summer may not yet be dead, but I'd need another 4 gfs runs to forecast that. At the moment, it doesn't look good, unless these hints can be translated into something more probable. The first week of August looks decidedly cooler and wetter than of late. Paul |
#2
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On Jul 29, 7:38*am, Dawlish wrote:
The start of August certainly looks as if it will be characterised by low-pressure dominance. My forecast of that, for the 3rd August, presently looks like that will achieve outcome and we're already seeing the effects of that falling pressure in the weather changes over the last 24 hours. After that, any ideas? Hints of the Azores High ridging towards us at T240, on both the gfs and the ECM, so summer may not yet be dead, but I'd need another 4 gfs runs to forecast that. At the moment, it doesn't look good, unless these hints can be translated into something more probable. The first week of August looks decidedly cooler and wetter than of late. Paul Still some non-"end-of-summer" output from the gfs 06z. Not exactly Azores High settled stuff, but instead, the UK sits on the Eastern side of Atlantic troughs, drawing up some warm air. Nothing like enough confidence for a forecast....but some possibilities of August warmth. The current swings at T240+, however, suggests that pretty much anything could happen. Met office goes with "there is still a hint that conditions may become slightly more settled from the southwest towards the end of the outlook period." That's the ECM00z/ gfs00z output. OK. That's what it is showing and it is slightly interesting! Paul |
#3
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On Jul 29, 7:38 am, Dawlish wrote:
The start of August certainly looks as if it will be characterised by low-pressure dominance. My forecast of that, for the 3rd August, presently looks like that will achieve outcome and we're already seeing the effects of that falling pressure in the weather changes over the last 24 hours. After that, any ideas? Hints of the Azores High ridging towards us at T240, on both the gfs and the ECM, so summer may not yet be dead, but I'd need another 4 gfs runs to forecast that. At the moment, it doesn't look good, unless these hints can be translated into something more probable. The first week of August looks decidedly cooler and wetter than of late. Paul What's perhaps encouraging is as soon as the end of the weekend, the models (including successive GFS) vary. There seems to be at least the possibility of some reasonable weather as soon as Tues/Wed next week. Would like the low pressure to keep away till October though, generally we seem to have got a raw deal in the calendar year 2008 with no prolonged settled spells - except in February. Of course October will probably be very dry and very warm.... Looking back on June and July, the main theme has been more unseasonably cool weather than normal rather than excessive rainfall, particularly in July prior to the 21st. In some ways so far this has been a typical recent "even year summer" - between 1997 and 2005, summers seemed to alternate between relatively good odd summers and relatively poor even summers. Nick |
#4
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![]() wrote in message ... On Jul 29, 7:38 am, Dawlish wrote: The start of August certainly looks as if it will be characterised by low-pressure dominance. My forecast of that, for the 3rd August, presently looks like that will achieve outcome and we're already seeing the effects of that falling pressure in the weather changes over the last 24 hours. After that, any ideas? Hints of the Azores High ridging towards us at T240, on both the gfs and the ECM, so summer may not yet be dead, but I'd need another 4 gfs runs to forecast that. At the moment, it doesn't look good, unless these hints can be translated into something more probable. The first week of August looks decidedly cooler and wetter than of late. Paul What's perhaps encouraging is as soon as the end of the weekend, the models (including successive GFS) vary. There seems to be at least the possibility of some reasonable weather as soon as Tues/Wed next week. Would like the low pressure to keep away till October though, generally we seem to have got a raw deal in the calendar year 2008 with no prolonged settled spells - except in February. Of course October will probably be very dry and very warm.... Looking back on June and July, the main theme has been more unseasonably cool weather than normal rather than excessive rainfall, particularly in July prior to the 21st. In some ways so far this has been a typical recent "even year summer" - between 1997 and 2005, summers seemed to alternate between relatively good odd summers and relatively poor even summers. Nick It's been quite reasonable for an "8" year here so far, 4th-20th July being pretty poor with a lot of cool windy weather (and spoiling my wedding/honeymoon which I guess exacerbates it's effect!) and a fair bit of cool windy weather in June as well. Not excessively wet bar July 9th either. A poor August would put 2008 down as a very typical "8" year... I do know that up north, it already has. Jim, Bournemouth |
#5
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![]() "Dawlish" wrote in message ... and the ECM, so summer may not yet be dead, Paul I'd say it is, dead that is. The length of the cyclonic spells between the brief settled spells April/May - the present has been far, far greater thaqts without resorting to data only my observation. MY INTERPRETATION:: Based on that then and as the weather declines into August, as it seems to be on the cards to do, even somewhat, you could take it that the chance of any more proper decent settled stuff is going to be well into late September/October even. So earlier darker evenings and rapid cooling after 4pm is whats to look forward to in any possibility of a settled late September. In between and up to this point its worse of course as it'll be cyclonic, which results in more clothes to counteract the rain and chillliness and the closing of the curtains, switching ON of the lights as our dreadful position of the sun in these latitudes cannot work as useful as it once did. Dave R |
#6
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It's been quite reasonable for an "8" year here so far, 4th-20th July
being pretty poor with a lot of cool windy weather (and spoiling my wedding/honeymoon which I guess exacerbates it's effect!) and a fair bit of cool windy weather in June as well. I don't think this summer so far has been too bad really. June was dry, sunny and the mean was slightly above the LTA. This July has redeemed itself after the very wet and cool period of the 8th - 12th with it being quite dry and reasonably sunny since, and very warm from the 22nd. The July mean temperature is now at the LTA of 16.8°C and sunshine levels have recovered somewhat to 186 hours. This is a bit of an improvement on July 2007 which had a mean temperature of 15.7°C and 181 hours of sunshine for the whole month. June 1st - July 29th Min Max Mean Rain Sun 2007 11.4C 19.7C 15.5C 223 mm 313 hours 2008 11.2C 20.8C 16.0C 128 mm 419 hours Last summer (up to this date) was colder, wetter and duller. ________________ Nick. Otter Valley, Devon 83 m amsl http://www.ottervalley.co.uk |
#7
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On Jul 29, 6:34 pm, "Dave R." wrote:
"Dawlish" wrote in message ... and the ECM, so summer may not yet be dead, Paul I'd say it is, dead that is. The length of the cyclonic spells between the brief settled spells April/May - the present has been far, far greater thaqts without resorting to data only my observation. MY INTERPRETATION:: Based on that then and as the weather declines into August, as it seems to be on the cards to do, even somewhat, you could take it that the chance of any more proper decent settled stuff is going to be well into late September/October even. Not sure if the first half of August is looking *too* bad - though (typically, though perhaps less of a big deal this time of year than others) there seems to be a fairly consistent, if short-lasting, "low from hell" for the weekend of 9th/10th. Rest of the time though it looks vaguely passable. earlier darker evenings and rapid cooling after 4pm is whats to look forward to in any possibility of a settled late September. Warm evenings, even after dark, seem more typical of contemporary Septembers though - even if the day max has not been record breaking. Nick |
#8
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On Jul 29, 8:24*pm, wrote:
On Jul 29, 6:34 pm, "Dave R." wrote: "Dawlish" wrote in message .... and the ECM, so summer may not yet be dead, Paul I'd say it is, dead that is. The length of the cyclonic spells between the brief settled spells April/May - the present has been far, far greater thaqts without resorting to data only my observation. MY INTERPRETATION:: Based on that then and as the weather declines into August, as it seems to be on the cards to do, even somewhat, you could take it that the chance of any more proper decent settled stuff is going to be well into late September/October even. Not sure if the first half of August is looking *too* bad - though (typically, though perhaps less of a big deal this time of year than others) there seems to be a fairly consistent, if short-lasting, "low from hell" for the weekend of 9th/10th. Rest of the time though it looks vaguely passable. earlier darker evenings and rapid cooling after 4pm is whats to look forward to in any possibility of a settled late September. Warm evenings, even after dark, seem more typical of contemporary Septembers though - even if the day max has not been record breaking. Nick- Hide quoted text - - Show quoted text - Yes; the "low from hell", Nick! It wasn't there on the 06z and then the 12z gfs promises nothing like as nice conditions and gives us autumn in the second week of August! Based upon the output over the last 2 days, I would back cooler and showery, rather than settled and warm, but there are such surprising changes with each run, at the moment, that someone would have to offer me decent odds to actually take the plunge and bet! I suppose I'm clutching at the chance that if the gfs output is inconsistent, there must be a chance of a decent August, overall! The problem is that the ECM 12z shows the "low from hell" as well. Who knows?.......and I do mean that, as no-one, IMO, at 10 days+, actually does know. That's the really frustrating, but amazingly interesting, thing! Paul |
#9
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On Jul 29, 10:14*pm, Dawlish wrote:
On Jul 29, 8:24*pm, wrote: On Jul 29, 6:34 pm, "Dave R." wrote: "Dawlish" wrote in message .... and the ECM, so summer may not yet be dead, Paul I'd say it is, dead that is. The length of the cyclonic spells between the brief settled spells April/May - the present has been far, far greater thaqts without resorting to data only my observation. MY INTERPRETATION:: Based on that then and as the weather declines into August, as it seems to be on the cards to do, even somewhat, you could take it that the chance of any more proper decent settled stuff is going to be well into late September/October even. Not sure if the first half of August is looking *too* bad - though (typically, though perhaps less of a big deal this time of year than others) there seems to be a fairly consistent, if short-lasting, "low from hell" for the weekend of 9th/10th. Rest of the time though it looks vaguely passable. earlier darker evenings and rapid cooling after 4pm is whats to look forward to in any possibility of a settled late September. Warm evenings, even after dark, seem more typical of contemporary Septembers though - even if the day max has not been record breaking. Nick- Hide quoted text - - Show quoted text - Yes; the "low from hell", Nick! It wasn't there on the 06z and then the 12z gfs promises nothing like as nice conditions and gives us autumn in the second week of August! Based upon the output over the last 2 days, I would back cooler and showery, rather than settled and warm, but there are such surprising changes with each run, at the moment, that someone would have to offer me decent odds to actually take the plunge and bet! I suppose I'm clutching at the chance that if the gfs output is inconsistent, there must be a chance of a decent August, overall! The problem is that the ECM 12z shows the "low from hell" as well. Who knows?.......and I do mean that, as no-one, IMO, at 10 days+, actually does know. That's the really frustrating, but amazingly interesting, thing! Paul- Hide quoted text - - Show quoted text - As I thought. A complete lack of consistency and anything could happen. Where's the "low from hell" on the 18z gfs? Gone. Possibly never to be remembered, but you never can tell! Sleep well all; summer still slumbers and is not yet dead - but I wouldn't back it's return, just yet. Paul |
#10
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![]() "Dawlish" wrote in message ... summer still slumbers and is not yet dead - but I wouldn't back it's return, just yet. Paul Slummer still slumbers? my arse it does. This is plainly riduculous Dawlish if you are not backing its return just yet, then when are you? You [and all of us] ain't got much left of summer, once August is out thats it and dont everyone start on about you can get some decent Septembers I've heard all that clutching at straws before. What, at 21C mid afternoon? big deal - ha thats Autumn or colloquilly known as an 'Indian Summer' not proper summer. DaveR |
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