Snowdonia National Park Forecast
The Snowdonia National Park.
Forecast last updated on Saturday 20th December 2014 at 12:08pm
Summary for all mountain areas
Widespread severe gales, rain and low cloud across upland Britain. Rain will rarely cease most western mountains, and be substantial western Scotland where runoff will be augmented by significant snowmelt.
Headline for Snowdonia National Park
Severe upland gales; heavy rain and very low cloud.
How windy? (On the summits)
Westerly 50 to 65mph; gusts 80mph..
Effect of wind on you?
Walking difficult from low levels up and any mobility arduous on higher areas. Severe wind chill.
Rain becoming persistent
Patchy rain at first, becoming persistent western mountains, but remaining patchy east.
Cloud on the hills?
Persistent; from many lower slopes upward
Widely covering higher areas, and cloud base soon dropping to shroud western mountains from low levels up.
Chance of cloud free summits?
Soon almost nil west to 20% east
Sunshine and air clarity?
Sunshine not expected. Extensively foggy across the hills. Hazy at low levels.
How Cold? (at 900m)
3 rising to 5C
Above the summits.
All mountain areas of Britain from Monday 22nd December 2014
The outlook for the Christmas period remains complicated (to say the least) with forecasts from the models variation considerably. Until Christmas frequent upland gales, rain, or in Scotland intermittently snow falling to lower slopes. Then a transient high will give lighter winds Christmas Day and perhaps Boxing Day England and Wales. Then further upland gales, and more likely than not over the following weekend, areas of snow and freezing levels dropping rapidly. However, forecasts now overwhelmingly resume often gale force westerly winds & frequent rain (or snow Scottish Highlands).