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AWT'S Winter Forecast 2012/2013

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A Winter's Tale

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[u][b][u]DECEMBER[/u][/b][/u]...quite cold, changeable with periods strongly influenced by low pressure but there should be some quiet and settled spells at times. Some periods of partciulary wet weather and at times quite windy and there could be a few storms. Temperatures 0.5 below to 0.25 above the average. CET 4.3C. Rainfall 90% in the north and west and 70-80% in the south and east. A good deal of hill snow in the highlands and some wintry weather at times . Sunshine 0-5% above average.

[u][b][u]JANUARY[/u][/b][/u]...cold with a sustained period of below average temperatures, wintry precipitation and dry conditions - in the north, and some cool, changeable and unsettled weather during the month with some wet and windy weather and possibly wintry in the north. Temperatures -1.25 to 0.25C below avergae. CET 2.8C. Rainfall 85%. Some widespread snowfall in cold spells and a risk of hill snow in the highlands throughout the month. Sunshine 5% above average.

[u][b][u]FEBRUARY[/u][/b][/u]...average with some cold, wintry spells but generally more unsettled and changeable with temperatures in general close to the average. Temperatures 0.25 below average to 0.5C above average. CET 3.8C. Rainfall 85 to 100%. Some wintry precipitation in cold spells. Sunshine 5% above average.

DECEMBER - MORE DETAILED FORECAST

First week: Starting cold, and dry, becoming unsettled with some wet and windy weather but on the cold side with the threat of some wintry precipitation in the north.
Second week: Initially unsettled and quite cool, turning a bit colder with northerly associated with mid-atlantic high with some snow in the north.
Third week: Becoming more settled for a few days with high pressure close to/over the British Isles - cold, frosty. Return to chilly, unsettled conditions.
Final week: Cool, quite unsettled start, becoming progressively colder later with snow becoming increasingly more widespread

JANUARY - DETAILED FORECAST


First week: Starting cool and showery in NW, quickly becoming settled with dry, calm and mild conditions - some rain in the NW at times -some overcast periods, driest in SE
Second week: Staying mostly settled -mostly in E - but some wet and windy weather will be present at times - mostly in W - temps overall average, turning cooler and unsettled
Third week: Unsettled, at times quite dry in SE, temperatures around average, occasional snow in N, turning colder and a bit drier later
Final week: Very cold with a widespread risk of snow and ice. Some significant snowfalls at times and harsh frosts. Overall dry conditions with sunshine.

FEBRUARY - DEATAILED FORECAST


FEBRUARY - DETAILED FORECAST

First week: Starting cold and bright followed by a brief interlude of milder, wetter conditions before a return to cold, showery conditions with snow in the N and W
Second week: Cold and settled to begin with then a mild wetter interlude before a return to cold and settled conditions.
Third week: Largely cold with settled conditions in the north and at times unsettled in south, highest risk of snow in eastern areas
Final week: Starting cold before unsettled conditions brings a breakdown with a change to temperatures closer to average and changeable weather conditions.
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