Southern Uplands
The Galloway hills eastward to the Lammermuir hills. The Cheviots (including higher hills within the adjacent Northumberland NP).
Viewing Forecast For
Southern Uplands
Friday 4th December 2020
Last updated
Thursday 3rd December 2020 at
4:25 PM
Summary for all mountain areas
Areas of snowfall will pivot in from the east to affect many areas of Scotland and Northern England through the day. Accompanied by upland gales giving severe wind chill for periods, but a substantial lull is likely S Pennines. Across Wales, snow showers later give way to persistent snow.
Headline for Southern Uplands
Periods of snow. Extensive hill fog. Periods of severe wind chill.
How windy? (On the summits)
North or northeasterly, speeds may vary, but for periods risk 40mph, or 50mph highest tops.
Effect of the wind on you?
Prepare for difficult conditions and severe wind chill on higher terrain.
How Wet?
Periods of snow
Areas of snow rotating across the region from the east, focused on Borders and Lothians. Will set in for periods, snow falling to lower slopes. Drier periods further west.
Cloud on the hills?
Extensive in snow
Varied: Breaks occasionally toward higher slopes at first, but as snow develops, cloud will lower more widely and become extensive on the hills.
Chance of cloud free summits?
50%
Sunshine and air clarity?
Limited sun. Away from precipitation, the air very clear, but appalling conditions if snow sets in.
How Cold? (at 750m)
-2C, rising slowly from east to 0C or just above. But feeling closer to -16C in direct exposure to strongest winds.
Freezing Level
Varied. Terrain frozen into valleys in morning, staying near zero for several hours. Tending to rise to 600-800m.
Viewing Forecast For
Southern Uplands
Saturday 5th December 2020
Last updated
Thursday 3rd December 2020 at
4:25 PM
How windy? (On the summits)
Easterly, 15 to 30mph.
Effect of the wind on you?
Walking impeded, risk sometimes arduous on high tops. Significant wind chill.
How Wet?
Largely dry
Occasional snow flurries mostly confined to easternmost hills from Lothians to Cheviots.
Cloud on the hills?
May be very little
Patches of cloud capping higher tops at times, mainly eastern summits.
Chance of cloud free summits?
70%
Sunshine and air clarity?
Occasional sun, mostly west. Visibility mostly very good or excellent.
How Cold? (at 750m)
-1C
Freezing Level
Around 600m, but also sub-zero some sheltered valleys after dawn.
Viewing Forecast For
Southern Uplands
Sunday 6th December 2020
Last updated
Thursday 3rd December 2020 at
4:25 PM
How windy? (On the summits)
Low confidence in detail: North to northwest 10-15mph.
Effect of the wind on you?
Mostly small.
How Wet?
Snow on and off, may set in further east.
Areas of snow likely to come and go through the day, most frequently across eastern areas where may set in for a time. Rain confined to lowest slopes.
Cloud on the hills?
Extensive
Cloud will likely cover the hills fairly extensively through the day. Patches at varying heights, but some local breaks possible away from snow.
Chance of cloud free summits?
30%
Sunshine and air clarity?
Mostly cloudy, some glimpses of sun; most likely towards coastal areas in west. Visibility sometimes poor or very poor due to snow. Perhaps often good in far west.
How Cold? (at 750m)
Around 0 or -1C
Freezing Level
Around 600-700m.
Planning Outlook
Cold weather patterns are likely to prevail well into December. A period of constant freeze, at least on the Scottish Munros, but often near or below zero on many lower summits across Britain. Upland terrain becoming extensively snow covered as bands of precipitation circulate slowly around low pressure - substantial snowfalls likely across many uplands, and snow may well lie for periods to lower slopes. Wind speed and direction will vary considerably, occasionally gale force. An east or northeasterly common across northern Britain.