Summary for all mountain areas

Upland gales or near gales. Snow showers will continue, primarily on mountains with the sea to the north, where snow will be frequent. However, very few showers will extend down the spine of Britain, from the southern highlands southwards.

Headline for Snowdonia National Park

Upland gales; snow, mainly Snowdon range.

How windy? (On the summits)

North or northwesterly, 40 to possibly 55mph in gusts.

Effect of wind on you?

Difficult walking across the hills and severe wind chill.

How Wet?

Snow; perhaps frequent

Areas of snow showers, perhaps frequent over a couple of hours giving almost constant snow and whiteout on the Snowdon range. Few showers south of Barmouth to Bala. Small risk thunder.

Cloud on the hills?

Extensive north

Cloud base will vary, intermittently clearing most summits, but probably only rarely above 800m Snowdon range. Near precipitation cloud base will drop to or below 500m - perhaps extensively Snowdon range.

Chance of cloud free summits?

20% Snowdon range to 60% south of Bala to Barmouth

Sunshine and air clarity?

Sunshine, mostly eastern areas south of Bala. Visibility often excellent but appalling, perhaps near zero where in snow and cloud.

How Cold? (at 900m)

-3C, but will feel as cold as minus 18C directly in the wind.

Freezing Level

450m, but a little higher summits nearest the coast.