Follow MountainWeather on Twitter
Follow MWIS on Facebook

Snowdonia National Park

Support the free distribution of this forecast by visiting our sponsors website.

Select forecast - Today / Wednesday / Thursday

Viewing forecast for Friday, 22nd June, 2012

Forecast last reviewed on Tuesday, 21/05/13 at 07:52


Click here to access the PDF version of the forecast.



Headline, Snowdonia National Park

Widespread rain & extensive low cloud. Severe upland gales.

How Windy?

Westerly, strengthening through day from 40 to perhaps 60mph gusts 80mph by late afternoon.

Effect Of Wind?

Considerable buffeting extensive across the hills even in morning. On higher areas, any mobility will become very difficult indeed. Significant wind chill.

How Wet?

Extensive rain west

Heavy rain western mountains, although slowly easing from the south, but perhaps incessant Snowdon range. Rain patchy and generally light eastern areas.

Cloud on the hills?

Extensive; very low west

Cloud extensive across the hills, widely at 350-500m west and 500-750m east.

Chance of cloud free Summits?

Less than 10%

Sunshine and air clarity?

Sunshine unlikely. Hazy, and extensively foggy on the hills.

How Cold? (at 900m)

6C.

Freezing level

Above the summits.

Planning Outlook for all mountain areas from Wednesday, 22nd May, 2013

A brief spell of very cold and, for a while, gale force northwest to northerly winds later Wednesday and into Thursday with a return of snow showers particularly to the NE Highlands where one should be prepared for brief periods of whiteout conditions combined with very severe wind chill. Threat of an area of rain with snow on summits edging into some eastern ranges later Thursday or Friday. Turning milder with some rain or showers extending from the northwest over the weekend.

Site managed, edited and copyright mwis.org.uk