High for general trends. Medium in details from Monday.
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.
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.
Blizzards and whiteouts present challenging and serious conditions due to a combination of falling or blowing snow, strong winds and cold temperatures. They can be highly disorientating, often resulting in near-zero visibility with limited or no visual references and no distinction between ground and sky. Cliff edges and cornices may not be apparent, even close up. These conditions require very good navigational skills.
Expect snow to rapidly accumulate with deep drifts also possible during windy conditions. Progress will be time consuming and physically strenuous, which will significantly affect the distance one is able to travel on foot. Paths will become hidden and difficult to follow, while very poor visibility during snowfall will make route-finding challenging. A heightened avalanche risk is likely and avalanche reports should be consulted where available.
Lightning is a significant mountain hazard which can result in serious injury or death. Mountain terrain often leaves one highly exposed to lightning strikes. Hail may give unpleasant conditions with torrential rain and localised flash flooding also possible, mainly in Summer months.
|Chance of precipitation|
|600m||W 23 28||W 25 31||W 26 35||W 26 35||W 27 36||W 26 34|
|300m||W 15 21||SW 16 24||W 16 27||W 17 31||SW 16 28||SW 17 29|
|Valley||W 8 21||W 8 21||W 11 27||W 12 29||SW 10 27||SW 11 27|
Occasional bright or clear spells with snow showers are expected, with temporary near blizzard conditions at times over the highest tops. Rain or sleet at times is more likely below 200m.
50 to 80%, occasional or extensive cloud, bases 600m to 900m, lowering to 300m or less in snow showers
Occasionally poor or very poor over the tops and in snow showers. Otherwise very good.
Wind chill and temporary blizzard conditions at height.
Rainfall data provided by the Environment Agency. The Met Office is not responsible for content provided by third parties and may remove this data without warning.
Mainly dry, bright and cold, although a few snow showers possible during the early hours.
West or Northwest 10 to 20mph
60 to 90%, patchy or occasional cloud expected during daylight hours, bases 600 to 900m.
Mainly very good or excellent, but put poor in any early snow showers.