Issued Thursday 22nd July  2010

General Outlook: Still a bit unsettled this weekend but with high pressure nudging up from the SW we can expect some warm, humid air and fronts - in association with low pressure to the SW of Iceland - look like fizzling out as they push east with low cloud and patchy rain or drizzle affecting mainly western hills.  Brightest in the east, hill fog and haze afflicting the west more.  Strong southwesterly winds at times over summits, especially in the west.

The Weekend in Detail:

Saturday 24th July Although likely to start dry in most places, a weakening front pushes in from the west through the morning and it looks like low cloud and some patchy, mainly light, rain will spread across much of Wales, the Lake District and the Western side of Scotland. Rain perhaps becoming heavier for a time in the afternoon in places, particularly across Snowdonia.  However further east it should brighten through the day with cloud rising above most summits and the SW Moors too should stay dry.  A strong southwesterly breeze over summits in the West Highlands and Wales, lighter elsewhere.  A fairly cool day, but likely to start turning a bit muggy by evening and as winds drop probably also becoming quite midgey.

Sunday 25th July. Looks like being another mainly cloudy day, quite hazy with poor visibility and many higher summits obscured, especially in the west, and the best of the weather again in the east.  Some light showers possible in the afternoon, especially across Wales, and some patchy rain and hill fog looks likely to affect the Hebrides and West Highlands, particularly towards coasts.  Winds mainly moderate and temperatures close to average, though again feeling quite muggy.

Further Outlook Low cloud and rain across the Highlands on Monday, but dry elsewhere.  Thereafter the trend looks to be high pressure to be situated somewhere to the west or SW of the British Isles but a great deal of uncertainty regarding exactly where and how much influence it will exert over the country.  Temperatures probably close to normal and more northwestern parts more likely to see stronger winds and more in the way of cloud and rain though showers likely to affect other parts at times as well.  Ireland could well prove the best place to be this week with mostly dry weather, albeit no heatwave.

For the latest daily weather update covering most upland regions of Britain,  more please visit The Mountain Weather Information Service website provided by Geoff Monk.

Met Office Mountain Forecasts are also available for the Highlands, Lake District, Peak District and Wales.

Note: this is a personal interpretation of likely weather conditions on the UK hills and is intended for general guidance purposes only. Local conditions may vary and changes may occur suddenly and without warning. Extreme caution should always be exercised when venturing into the hills

TOI 12.50 BST  –  22nd July 2010

Forecast by Andy Mayhew

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