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Lake District

Weather hazards over 300m on Sun 11 Dec 2016

High risk

No high risks
none

Medium risk

No medium risks
none

Low risk

Persistent extensive hill fog
Persistent over western fells above about 450-600m.

No risk

Blizzards
none
Heavy snow
none
Storm force winds
none
Gales
none
Severe chill effect
none
Thunderstorms
none
Heavy persistent rain
none
Strong sunlight
none

Sun 11 Dec 2016

A mainly cloudy day will follow with perhaps a few light showers at first, otherwise dry with perhaps some brightness towards Keswick and Glenridding. Some hill fog over western fells in particular and summits further east. Staying dry during the evening with some clear intervals across the eastern Fells.

Time
0600 to 0900 0900 to 1200 1200 to 1500 1500 to 1800 1800 to 2100 2100 to 2400
Weather
Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy
Precipitation probability
10% 10% 0% 0% 0% 0%

Visibility

Mainly good beneath the hill fog.

Hill Fog

Occasional above around 450 metres becoming more persistent across southern and western fells, with some patches down to 300 metres in the evening. Further east mainly above 750m.

Max wind above 500m

Westerly 30 gust 40 mph easing 10-15 mph by the evening then backing southwesterly.

Temperature

Valleys:
Plus 4 Celsius rising to plus 9 Celsius then falling to plus 5 Celsius.
800m:
Plus 2 Celsius.
Freezing level:
Above the fells

Ground conditions

Latest: The Fell Top Assessors Report Friday 9 December, Helvellyn summit at 1150: Another soggy day on Helvellyn today, and the thaw continues. There is very little snow anywhere on the fells, and the patches that remain are very easy to avoid. Swirral and Striding Edge are now pretty much free of snow, with just the odd patch on Swirral which today was wet and slushy. The cloud base in the morning was around 250m, and heavy rain made walking arduous. By lunchtime the cloud base had risen to around 650m, and the rain had eased to a drizzle on the tops. All the becks are now in spate, and could make stream crossings difficult where bridges are not in place - care is needed! Climbers should note that there is no snow anywhere of significance, and no winter routes are in condition at present. Skiers should note that yesterday on the north side of Raise there were just four tiny patches of the white stuff, and these will have diminished further today. With temperatures feeling just below zero with wind chill, full winter clothing should be carried on the fells, along with a map and compass and the knowledge of how to use them. Today visibility was reduced to around 10m at times, requiring careful navigation. Temperature: plus 7.0 deg C, Maximum wind speed 44.9mph, Wind chill: minus 1.8 deg C, Average wind speed: 30.2mph.

Mon 12 Dec 2016

Dry overnight with some clear intervals across the eastern fells, then a dry and increasingly bright morning with sunny spells developing. However, cloud will increase with outbreaks of rain spreading from the southwest during the afternoon, this heavy at times, before turning lighter and more patchy during the evening.

Visibility

Good or very good, becoming moderate or poor at times in the rain

Hill Fog

Occasional or persistent above around 300-400 metres, mainly across southern and western fells, becoming confined to the Southwestern Fells during the morning, then reforming later as the rain spreads in.

Max wind above 500m

South or southeast 20 mph gusts 30 mph.

Temperature

Valleys:
Plus 4 Celsius rising to plus 9 Celsius.
800m:
Plus 2 Celsius.
Freezing level:
Above the fells.

Tue 13 Dec 2016

Rather cloudy with some light drizzle and extensive hill fog across the southern and eastern fells, with some brightness towards Skiddaw. Moderate occasionally fresh mainly east to southeasterly winds, strengthening later.

Wed 14 Dec 2016

Outbreaks of rain, heavy at times, spreading east across all ranges. Strong south to southeasterly winds over the summits, veering southwesterly and moderating during the afternoon.

Thu 15 Dec 2016

Mainly dry and bright then rain spreading from the west later with southerly gales developing over the summits.

Issued at: 0340 on Sun 11 Dec 2016