The Northwest Highlands Forecast
Areas north from Knoydart in the west, and the Great Glen towards the east (NB. Does not include Mull and areas west of Loch Linnhe, these are found in the West Highlands forecast.)
Viewing Weather Forecast for Friday 29th May 2015
Forecast last updated on Thursday 28th May 2015 at 3:28pm
Summary for all mountain areas
A small but intense low will track east, crossing N Wales after dawn, and out into the North Sea afternoon, bringing a swath of severe conditions: severe upland gales &heavy rain (snow highest tops). From Cumbria northwards, very cold with bursts of sun, but snow and hail showers.
Headline for The Northwest Highlands
Very cold; snow and hail showers. Risk lightning.
How windy? (On the Munros)
Westerly 20 to on highest tops 25mph. Sudden gusts to 35, locally 40mph near showers.
Effect of wind on you?
Often fairly small, but sudden buffeting likely near showers.
Heavy showers: snow, risk lightning
Showers, sometimes heavy and frequent over a few hours. Snow above about 650m, hail and risk thunder.
Cloud on the hills?
Extensive higher areas
Quickly varying cloud base; occasional glimpses of higher summits, most frequently east of Achnasheen to Loch Cluanie. However, shafts of cloud below 500m near showers, and most often around 850m.
Chance of cloud free Munros?
Sunshine and air clarity?
Bursts of bright sun. Appalling visibility in cloud and snow; but away from precipitation and below cloud, excellent.
How Cold? (at 900m)
0 or 1C; a little higher well inland afternoon between showers.
950m, to intermittently 1150m well inland by midday.
All mountain areas of Britain from Saturday 30th May 2015
Frequently very cold until about next Wednesday, with precipitation at some stage on most mountain areas more or less daily - falling as a mix of heavy showers and periods of constant precipitation. There will also be thunder. As the cold weather continues, mainly on the Scottish Highlands, there remains considerable snow cover, this blocking access to some routes. There are strong indications of a reversal in weather pattern around the middle of next week, with pressure building in the vicinity of Britain, to bring increasingly fine, and later in the week warm weather.