"Of winter's lifeless world each tree now seems a perfect part; yet each one holds summer's secret deep down within its heart." - Charles G. Stater There has been some erosion of confidence in the patterns lately, which had performed well in indicating the overall anticipated flow; that is until now. The longer term flow had indicated that high pressure would control the period just prior to and over the Christmas period, ushering in a rather settled and potentially cold spell as a block formed, this pressure rise now looks set to be much further southwest so the inflection is somewhat different than anticipated. Through the Christmas period with pressure low to the northwest or north and higher to the south or southwest, the flow will be from off the mid or North Atlantic, so alternating between mild and cool conditions rather than cold, showers or longer spells of rain for all areas and often rather windy, this perhaps offsetting the benefits of the maritime flow? The New Year period may see colder weather filtering south but remaining unsettled throughout the holiday period. The opening of 2012 sees all areas unsettled and rather cool to cold with the threat of wintry precipitation increasing, this mainly showery in nature and although not exclusively the highest threat will be found across northern Britain and higher ground. Through the middle of January the Atlantic becomes more active once more with less cold conditions moving through on a brisk westerly with spells of wind and rain for all areas. As the forecast period draws to a close there is the hint of a rise in pressure across southern Britain. *29/12/11* The flow through until this period sees conditions dictated by low pressure and a maritime orientated origin, low pressure in control. It'll often be windy at times bring a cool mixture of showers or longer spells of rain, there will be the chance of wintry showers, this most likely across higher ground of the north and west, rain mostly to lower levels. Temperatures are likely to seesaw as systems track close to the UK, the flow swinging from the west or northwest to the south-west at times, the benefits of this perhaps offset by the strength of wind. *30/12/11 - 13/01/12* During this period it looks as if low pressure will be in control for the most part, it'll be feeling increasingly cold too. It seems as if low pressure will become slow moving and complex over the UK, stalled by higher pressure well to the east or northeast, all areas rather unsettled. There'll be a mix of precipitation through this period, generally of rain across the more southern areas of the country at first, however there is a risk of seeing something a bit wintrier in nature as conditions become colder. *14/01/12 - 18/01/12 * Turning les cold here as the flow swings around to the west or southwest, low pressure still in control so remaining unsettled. It'll be windy for much of the time with low pressure close at hand, rain will affect all areas of the UK from time to time, some of it heavy particularly in the west and north where gales can be expected. Southern areas of the UK should become drier as a pressure generally rises, with a ridge extending across southern Britain, remaining rather unsettled and breezy across the north and west with outbreaks of rain. *19/01/12 - 24/01/12* High pressure looks as if it'll be building across the southern half of the UK, so at least England and Wales become brighter, drier and settled with the risk of overnight mist, fog and frost increasing. The north remains mixed at first but here too the conditions should settle later. Simon & Capn Bob Email me at simon.keeling@weatheronline.co.uk
Source: http://feeds.weatheronline.co.uk/~r/weatheronline/~3/rMEt8z4pyvw/reports
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