Snowdonia National Park Forecast
The Snowdonia National Park.
Forecast last updated on Wednesday 1st October 2014 at 4:08pm
Summary for all mountain areas
Fine with well broken cloud for nearly all mountain areas. However, winds will strengthen through the day, although even by dusk light most of Wales and S & Central Pennines. However, upland gales will extend east across Highland Scotland, becoming severe NW Highlands.
Headline for Snowdonia National Park
Wind slowly strengthening. Low cloud, mainly morning south.
How windy? (On the summits)
Southerly: 10mph at first, but progressively strengthening to 25mph by late afternoon Snowdon range, and 20mph elsewhere.
Effect of wind on you?
Negligible until into the afternoon.
Rain very unlikely
Very small risk isolated fine drizzle mid-Wales at first.
Cloud on the hills?
Mostly or all clearing
Cloud may be extensive across most higher areas (and in places on lower slopes) after dawn, mainly or only south of Bala to Barmouth. Gradually the lower cloud will lift and break although as it does a few patches may extend northwards. By afternoon, cloud rare below 900 or 1000m.
Chance of cloud free summits?
30% south to 70% north morning; 90% afternoon
Sunshine and air clarity?
Sunshine extensive overall, although little sun morning south of about Bala to Barmouth. Excellent visibility north; but haze may return from the south.
How Cold? (at 900m)
Above the summits, but ground frost some valleys (probably those in and due east of Snowdon range) and corries at dawn.
All mountain areas of Britain from Friday 3rd October 2014
A major change in the weather pattern as over the next 10 days, low pressure will become dominant - with several separate centres 'dumb-belling' around each other, bringing cusps of strong wind, rain and low cloud. Away from the major rain and cloud areas, there will still be showers. Ahead of this, on Friday, strong evidence of major rainfall on mountains near the north Irish Sea as a cold front moves erratically southeast. Underfoot, presently still very dry most mountain areas.