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yellow Warnings have been issued for the United Kingdom

Snowdonia

Weather hazards over 300m on Fri 12 Feb 2016

High risk

No high risks
none

Medium risk

No medium risks
none

Low risk

Severe chill effect
Cold over peaks during any snow showers and moderate winds.
Persistent extensive hill fog
Chance of hill fog, mainly during the morning, especially in eastern exposure.

No risk

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

Fri 12 Feb 2016

Variable amounts of cloud today with a few showers possible, these falling as snow over higher peaks, above about 600 metres with snow lying above. Icy conditions are likely on high mountain paths. Light to moderate east or southeasterly winds during the day. Dry during the evening with light winds and occasional clear spells.

Time
0600 to 0900 0900 to 1200 1200 to 1500 1500 to 1800 1800 to 2100 2100 to 2400
Weather
Sleet shower day Sleet shower day Sleet shower day Sunny intervals Partly cloudy night Partly cloudy night
Precipitation probability
60% 60% 40% 20% 10% 10%

Visibility

Good for much of the time, but occasionally moderate in showers. Very poor in hill fog.

Hill Fog

Occasional 400-500 metres during the morning, especially in the east. Lifting and becoming more patchy during the afternoon.

Max wind above 500m

East or southeasterly 25 mph.

Temperature

Valleys:
Plus 5 Celsius
800m:
Minus 1 Celsius
Freezing level:
600 metres.

Ground conditions

Latest: Date of observations: 09/02/2016. Observation made on: Yr Wyddfa - Snowdon. Time of observation: 2.00 PM. Winter conditions above: 650m. Ground Conditions: Isolated stretches of snow, Light dusting of hail/snow, Wet surfaces are coated in ice, Depth of snow increases with height, Snow drifts in areas. Observations on: Nil. Observation: Nil Kit Advice: Recommended to carry ice axe and crampons, Wear crampon compatible boots, Walking poles can provide an aid to balance and security when walking through unconsolidated snow, Take waterproofs, hat, gloves and spare warm layers. Further Advice: Nil

This report is completed on a regular basis through the winter months by Snowdonia National Park Wardens and gives indicative information on snow/ice conditions underfoot in the Snowdonia area as a whole. Remember mountains can be inhospitable and dangerous places for the ill-prepared so it is important to check the forecast before setting out.

Further information:
Live information on Winter Conditions in Cwm Idwal: https://www.thebmc.co.uk/idwal
Forum discussions on the latest Winter Conditions: http://www.ukhillwalking.com/forums/i.php?f=7
The Met Office is not responsible for the content of external sites.

Sat 13 Feb 2016

Mainly dry during the day, but with a risk of a few showers (falling as snow above mid-levels), mainly during the morning. Some sunny spells likely, especially later. East or northeasterly winds are likely to be strong for a time then ease later. Remaining mainly dry during the evening.

Visibility

Generally very good.

Hill Fog

Occasional hill fog down to 400-500 metres, mainly during the morning.

Max wind above 500m

East 40 mph.

Temperature

Valleys:
Plus 5 Celsius
800m:
Zero Celsius becoming minus 2 Celsius.
Freezing level:
600 metres, perhaps lowering later in the day.

Sun 14 Feb 2016

Cold and mainly dry with sunshine and isolated snow showers. Feeling cold in fresh north to northeasterly winds. Frost likely overnight with further isolated showers.

Mon 15 Feb 2016

Largely dry with long bright or sunny spells after a frosty morning. A few snow showers are possible first thing. Strong northerly winds early morning should ease through the day. Hard frost overnight under clear skies.

Tue 16 Feb 2016

Frosty with sunshine and light winds. Ice is likely on mountain paths. Cloud may thicken later from the west with southerly winds strengthening during the late afternoon.

Issued at: 0358 on Fri 12 Feb 2016