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Snowdonia National Park

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Viewing forecast for Friday, 7th December, 2012

Forecast last reviewed on Tuesday, 21/05/13 at 21:42


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Headline, Snowdonia National Park

Severe gales; frequent snow north.

How Windy?

Northerly, mean speeds 45 to 60mph.

Effect Of Wind?

Walking widely difficult where exposed, from low levels upward in severe gales. On many higher areas, any mobility difficult. Severe wind chill.

How Wet?

Snow showers, mainly Snowdon range

Showers, of snow above 650m. Most frequent Snowdon range where at times the precipitation may be almost constant.

Cloud on the hills?

Extensive on higher areas.

Fairly extensive cloud above about 750m, but lower near showers. Cloud may intermittently clear higher summits south of Lake Bala to Barmouth

Chance of cloud free Summits?

20% north to 60% south

Sunshine and air clarity?

Bursts of sunshine, mainly south of Bala to Barmouth. Visibility varied but very poor in precipitation.

How Cold? (at 900m)

0C; but will feel as cold as minus 15C directly in the wind.

Freezing level

900m.

Planning Outlook for all mountain areas from Thursday, 23rd May, 2013

Cold over the coming week. There will be freeze thaw cycles on higher Scottish summits, and on higher tops further south, temperatures often only a couple of degrees above freezing point. Total precipitation will be small, but there will be snow showers (often rain or hail on summits from S Scotland southwards), and occasionally, particularly in western Scotland, fronts may edge in bringing several hours of rain and low cloud. Generally summits will often be cloud free, and the visibility excellent.

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