Cairngorms NP and Monadhliath Forecast

Cairngorms National Park and Monadhliath. Also includes the Ben Alder area hills between Loch Ericht and Loch Laggan.

Viewing Weather Forecast for Saturday 14th December 2019
Forecast last updated on Friday 13th December 2019 at 3:50pm

Today | Sunday | Monday

Summary for all mountain areas

A complex area of low pressure to the north and west of Scotland brings a risk of snow setting in for periods for the W/NW Highlands. Smaller amounts of snow toward east. Frequent snow also for western hills of England & Wales. Widespread upland gales and severe wind chill, expect perhaps N Scotland.

Headline for Cairngorms NP and Monadhliath

Risk occasional snow, whiteout; strengthening upland gales.

How windy? (On the Munros)

Complex situation - speeds may change quickly: West to southwesterly, locally below 20mph for a time, but threat more often 30-40mph, strengthening through day to 50mph.

Effect of wind on you?

At times small, but prepare for rapidly deteriorating conditions setting in, with blowing snow and severe wind chill.

How Wet? (Precipitation and its impact)

Risk areas of snow

Most likely small amounts of snow, occasionally spreading from the west. May set in locally near/west of the A9 over a few hours giving whiteout.

Cloud on the hills?

Fairly extensive higher tops

Banks of cloud across higher slopes, locally forming to lower levels, mostly around snow. Breaks best toward east & north of Cairngorm plateau.

Chance of cloud free Munros?

40%

Sunshine?
Air clarity (below cloud)

Glimpses of weak sun through high cloud. Visibility locally appalling in snow and low cloud, but often very good.

How Cold? (at 900m)

-3C. In strongest wind on higher terrain, wind chill feeling close to -20C.

Freezing Level

Most mountain terrain frozen and snow covered from lower slopes up.

Planning Outlook

All mountain areas of Britain from Sunday 15th December 2019

Staying cold through into early next week. Most mountain terrain frozen, to lower slopes in Scotland. Some substantial snowfalls, with snow lying from many lower slopes up away from immediate coasts. Most precipitation focused on western mountains. Winds very varied, sometimes gale force, but also some lulls. Quieter conditions briefly early next week. A gradual but complex rise of freezing level from the south through midweek, although Scottish mountains may well stay substantially frozen. Rain preceded by snow extending in from the southwest.

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