Snowdonia National Park Forecast

The Snowdonia National Park.

Viewing Weather Forecast for Tuesday 31st March 2015
Forecast last updated on Monday 30th March 2015 at 2:19pm

Summary for all mountain areas

Severe upland gales will produce significant wind chill and widely difficult walking conditions. Snow and hail showers for all regions, most frequent across western mountains, giving whiteout; risk of thunder and lightning.

Headline for Snowdonia National Park

Severe upland gales. Snow and hail showers; isolated lightning.

How windy? (On the summits)

Westerly 50 to 60mph, occasionally 65mph Snowdon range, gusts 75mph.

Effect of wind on you?

Walking difficult from lower slopes up; general mobility arduous on higher areas. Severe wind chill.

How Wet?

Snow and hail showers; risk lightning

Snow and hail showers, falling to valley level, particularly toward coast; most widespread Snowdon range, where over several hours may be frequent. Temporary whiteout. Isolated thunder.

Cloud on the hills?

Intermittently covering tops

Rapidly varying cloud base; views from higher summits particularly well inland, but shafts of cloud above 500m near showers.

Chance of cloud free summits?

30% Snowdon range; 50% inland.

Sunshine and air clarity?

Bursts of sunshine, most widely eastern areas. The air very clear - but visibility suddenly poor in snow and appalling where also in cloud.

How Cold? (at 900m)

Dropping from -1C to -3C; feeling as cold as minus 20 Celsius where directly exposed to strongest wind.

Freezing Level

700m falling through the day toward 500m.

Planning Outlook

All mountain areas of Britain from Wednesday 1st April 2015

Wednesday will continue to see upland gales and frequent snow showers, although by Thursday conditions ease, particularly for Scotland, with lighter winds and fewer showers. Toward Easter weekend, a building area of high pressure brings the prospect of quieter but still cold conditions, although there are uncertainties by Monday. For the rest of this week, and also the Easter weekend, many upland areas, particularly the Scottish Highlands will remain in 'winter' condition, with frozen or part frozen terrain and recent snow on higher areas, which will melt only slowly.

In association with
Mountaineering Council of Scotland sportscotland Association of Mountaineering Instructions