High for a milder spell until Friday night then much colder again, lower for details and for the timing of the change.
Poor visibility presents challenging route finding conditions. Visibility could be significantly less than 50 metres in all directions with few or no visual references, especially on featureless moors or plateaux. Distances become hard to judge and cliff or cornice edges can be difficult to recognise. These conditions require good navigational skills. There is a risk of white-out conditions when mist or fog is combined with extensive snow cover.
Gale force winds (gusts over 50mph) make walking difficult and strenuous with a potential to be blown over by gusts. There is often a marked increase in winds through cols or on exposed ridges and summits. Distances can take longer to cover and compass bearings become harder to follow accurately.
Wind significantly lowers the ‘feels-like’ temperature relative to the actual temperature, with even moderate winds significantly adding to the chilling effect. Strong winds can result in a severe and debilitating wind chill many degrees below the actual temperature. This effect will be enhanced in rain or wet snow. Without protection, prolonged exposure could result in frost nip or frostbite on exposed parts of the body and/or hypothermia.
Cloudy and increasingly misty with outbreaks of rain and drizzle spreading from west, starting as sleet or wet snow on the tops. Becoming windy in the evening.
|Chance of precipitation|
|600m||NW 21 28||NW 16 24||SW 8 11||SW 14 19||W 26 35||NW 27 37|
|300m||NW 10 20||NW 7 15||SW 4 8||SW 7 11||W 13 22||NW 16 26|
|Valley||NW 8 19||NW 5 15||SW 2 6||SW 4 8||NW 10 19||NW 12 22|
Cloudy and increasingly misty with outbreaks of rain and drizzle spreading from west, starting as sleet or wet snow on the tops above about 700m. A few heavier bursts possible in the morning then rain turning light and drizzly.
20% at first but less than 5% for most of the day as cloud becomes extensive at 300-600m with a few lower patches especially in the north and west.
Mainly good but becoming poor during the day with significant navigational difficulties.
Stronger winds in evening but rising temperatures.
Cloudy with a little light rain at times.
West to southwest 35 gusts 50mph.
20% with persistent cloud at 500-800m and a few lower patches
Often good away from cloud but moderate in rain. Flat light due to the overcast conditions.