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Snowdonia National Park

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Viewing forecast for Wednesday, 23rd April, 2014

Forecast last reviewed on Wednesday, 23/04/14 at 16:14


Click here to access the PDF version of the forecast.




Headline, Snowdonia National Park

Windy with rain for a few hours, later easing.


How Windy?

South or southeasterly, 20 to 30mph, strongest middle of the day when gusts may reach 45mph.

Effect Of Wind?

Fairly small at first and late on. But widespread buffeting, mainly but not exclusively higher areas, centred around middle of the day.


How Wet?

Rain, later clearing

Rain soon developing from southwest, falling for several hours before slowly clearing from the west again in the afternoon.


Cloud on the hills?

Extensive on higher areas

Varied: many eastern & northern summits cloud free for a few hours, before in rain cloud becomes extensive on the hills, although mostly above about 700m. The cloud will almost all break up from the west through in afternoon.

Chance of cloud free Summits?

20%, rising to 70% from west toward evening

Sunshine and air clarity?

Very little sunshine - although may well become sunny from west toward evening. Hazy, extensive fog on higher areas; although by evening visibility excellent.


How Cold? (at 900m)

6C.

Freezing level

Above the summits.


Planning Outlook for all mountain areas from Friday, 25th April, 2014

Often dry, although showers will develop in the afternoon on Friday. Fairly warm. Low pressure centred over southern Britain will then dominate the weather for a few days, bringing areas of constant rain and also heavy showers, these focussed on the afternoons. Extensive low cloud, especially east. Driest conditions with least low cloud W & NW Highlands, south of Ullapool.


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