Issued: 0900hrs Wednesday 27th August 2014
Duty forecaster: Garry Nicholson
High pressure building
A changeable few days ahead, particularly for northern Britain, as fronts bring spells of rain or showers. High pressure is building gradually from the south-west, and from Tuesday onward is expected to bring fair weather to all parts of the UK and Ireland for a few days.
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Low pressure will be centred north of Scotland on Saturday, bringing a fresh westerly breeze across the UK. Showery rain in western Scotland, north-west England and Northern Ireland. A fairly cloudy day overall, but brightest across the Midlands, Wales and eastern England, with some sunny spells. A cold front toward the south is expected to bring cloudier skies to southern Britain, with patchy showery rain affecting English Channel coasts. Temperatures ranging from 12 to 15C in the north-west, to 19 to 21C in central and eastern England.
High pressure builds from the south-west during Sunday, and most places are likely to see a dry and bright day. Cloudier skies in northern Scotland, may produce a little drizzly rain. Still a fresh breeze in the north, but lighter winds in the south. A cool start to the morning, but temperatures rising by afternoon to 20 or 21C in central and southern England, although nearer 15 to 17C in the north and west.
High pressure continues to influence the south, but fronts affect northern Britain on Monday, bringing cloud and patchy rain. This may produce a spell of steady rain for north-western Britain, but this should tend to ease. Most other parts of the UK will see very little rain, driest in the south and east, with some sunshine. A south-westerly breeze, strongest in the north. Highs 22 or 23C for central and southern England, cooler at 14 to 18C for northern England and Scotland.
High pressure is expected to become more extensive across the UK and Ireland by Tuesday, bringing fine weather to most areas. The remains of old fronts may still produce a fair amount of cloud, but sunshine should break through during the day. Light winds. Highs 17 or 18C in the north, and 22 or 23C in the south, locally slightly higher.
High pressure remains situated across the British Isles, bringing another dry day with good spells of sunshine. Light winds for most, perhaps a stronger breeze in Scotland. Pleasantly warm for most, highs 19 to 23C.
The area of high pressure tends to weaken later in the week, but still influences the UK on Thursday, with continued fair weather for most. Sunny spells and light south to south-westerly winds, highs 18 to 23C.