Snowdonia National Park Forecast

The Snowdonia National Park.

Viewing Weather Forecast for Tuesday 3rd March 2015
Forecast last updated on Monday 2nd March 2015 at 1:54pm

Summary for all mountain areas

Severe conditions particularly across the western Scottish mountains; upland gales strengthening toward storm force, snow and hail almost constant over several hours. Elsewhere, snow showers, most frequent toward west. Risk occasional lightning.

Headline for Snowdonia National Park

Strengthening upland gales. Snow and hail showers.

How windy? (On the summits)

Westerly, 35 to 40mph in the morning, increasing toward 50mph by afternoon, risk gusts to 65mph.

Effect of wind on you?

Walking widely difficult on higher areas. Severe wind chill.

How Wet?

Snow and hail showers; risk lightning

Clusters of snow and hail showers, sometimes one after another, particularly western hills; perhaps sleet lowest slopes. Risk thunder and temporary whiteout.

Cloud on the hills?

Tops rarely clearing

Varied cloud base, but only occasionally above 900-1000m, and around showers, may lower to 600m, perhaps shrouding hills over several hours.

Chance of cloud free summits?

30% west; 60% east.

Sunshine and air clarity?

Bright sunshine in and out, mostly eastern hills. The air remaining very clear, but visibility suddenly appalling in cloud and snow.

How Cold? (at 900m)

-4C

Freezing Level

Around 400m. Slight melting of snow lowest, particularly coastal slopes.

Planning Outlook

All mountain areas of Britain from Wednesday 4th March 2015

Remaining cold on Wednesday with further snow and hail showers, although conditions easing. By Thursday, rain and snow on higher areas, particularly western Scotland. A rise in freezing level will result in a steady thaw of lying snow, most substantial lower slopes. Toward the weekend, high pressure building across southern Britain brings widespread milder air. However upland gales are expected across Scotland, and substantial precipitation (mostly rain) particularly the West Highlands; resulting in significant snow melt.

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