Snowdonia National Park Forecast
The Snowdonia National Park.
Forecast last updated on Wednesday 17th December 2014 at 1:51pm
Summary for all mountain areas
Widespread upland gales, strongest in Snowdonia. Extensive low cloud and persistent rain, particularly western mountains south from Loch Lomond. Frequent snow showers north-west Scotland, but largely dry in the eastern Highlands.
Headline for Snowdonia National Park
Severe upland gales. Low cloud and persistent rain. Streams flooded.
How windy? (On the summits)
Westerly 50 to 70mph, and to the east of major ridges there may be very strong gusts to low levels.
Effect of wind on you?
Walking very difficult from lower slopes and any mobility difficult where exposed higher up. Severe wind chill.
Rain falling frequently throughout the day; heaviest and most persistent western mountains. Very wet underfoot, and many streams in flood.
Cloud on the hills?
Extensive low cloud
Cloud blanket across the hills to lower slopes although a few breaks above 650m eastern hills.
Chance of cloud free summits?
Almost nil west; 10% east
Sunshine and air clarity?
Sunshine not expected. Hazy, and extensively foggy across the hills.
How Cold? (at 900m)
Above the summits.
All mountain areas of Britain from Friday 19th December 2014
Frequent upland gales through to Christmas, particularly Scottish Highlands, although a lull developing during Saturday as a transient ridge of high pressure crosses the British Isles. Precipitation almost daily, particularly western mountains. Freezing levels rising above most mountain tops on Sunday as rain moves through, then frequent below freezing on Scottish summits next week. Elsewhere, most precipitation rain with freezing levels often above higher tops (although 600-800m Friday & Saturday). Signs of turning widely colder post-Christmas.