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Snowdonia National Park

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Viewing forecast for Thursday, 24th April, 2014

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


Click here to access the PDF version of the forecast.




Summary for all mountain areas

Soon light winds across all mountain areas. A patchwork of bright sunshine, but cloud will build with heavy showers, some with hail and thunder, in afternoon. Most summits free of cloud.


Headline, Snowdonia National Park

Light wind. Scattered heavy showers; sunshine.


How Windy?

Southerly, 10mph or less.

Effect Of Wind?

Negligible


How Wet?

Heavy showers; risk lightning

From about midday, scattered heavy showers; small risk thunder.


Cloud on the hills?

Very little

Patches of cloud on higher slopes will quickly lift; soon cloud only rarely on the summits (near and after showers).

Chance of cloud free Summits?

Greater than 90%

Sunshine and air clarity?

Patches of bright sun, particularly morning. Visibility excellent - much less haze.


How Cold? (at 900m)

4C rising to 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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