Snowdonia National Park

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Viewing forecast for Tuesday, 9th February, 2010

Forecast last reviewed on Monday, 08/02/10 at 14:55


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Summary for all mountain areas

Extensive cloud will come in off the sea within the circulation of a large area of high pressure. Where the cloud makes land fall (northern and eastern coastal hills), there will be snow flurries, but to the south of higher mountains, the cloud will for periods clear. Winds fairly light.

How Windy?

East or northeasterly 20 to 25mph, gusts may reach 40mph near higher ridges and summits.

Effect Of Wind?

Mostly fairly small

How Wet?

Precipitation unlikely

Cloud on the hills?

Extensive on higher areas

Few holes in persistent cloud sheet, base 650m, rising to 800m in mid-Wales, where there may be substantial breaks.

Chance of cloud free Summits?

20%

Sunshine and air clarity?

Only a few, if any, pockets of sun. Visibility excellent.

How Cold? (at 900m)

-4 or -5C.

Freezing level

400m.

Planning Outlook for all mountain areas from Wednesday, 10th February, 2010

High pressure will dominate the weather over all mountain areas for the coming week, although areas of very extensive cloud will cross Britain within its circulation (breaking at times toward the west). The cloud will occasionally give light snowfall, but for most areas falls will be very small, although the Cairngorms will over several days have a few inches.

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