The entire Yorkshire Dales National Park and North Pennines AONB, including the Three Peaks and Cross Fell, also south to Forest of Bowland and Ilkley Moor.
Yorkshire Dales and North Pennines
Friday 4th December 2020
Last updated
Thursday 3rd December 2020 at
4:25 PM
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.
Dry start, but snow and hill fog setting in. Periods of severe wind chill.
Northerly then later easterly, perhaps a lull, but for periods risk up to 40-50mph higher Pennines.
Prepare for difficult conditions and severe wind chill on higher terrain.
Snow setting in
Mostly dry dawn, but snow will push onto the Pennines from the east, and will set in and become heavy, falling to lower slopes. May become sleety in valleys. May ease off at times.
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.
50% at first, lowering to 10% in snow.
Limited sun. Away from precipitation, the air very clear, but appalling conditions if snow sets in.
-2C, rising slowly toward 0C or just above. But feeling closer to -16C in direct exposure to strongest winds.
Frost in most valleys from dawn. Likely only rising to max 2 or 3C during day.
Yorkshire Dales and North Pennines
Saturday 5th December 2020
Last updated
Thursday 3rd December 2020 at
4:25 PM
Easterly, 15 to 25, perhaps 30mph.
Walking impeded, risk sometimes arduous on high tops. Significant wind chill.
Largely dry
Occasional snow flurries may move onto the Pennines from the east.
Mostly higher tops
Patches of cloud capping higher tops at times, may linger on higher N Pennines, particularly toward east. Possible low level banks of freezing fog from dawn, may linger if winds are light.
60%
Occasional sun, mostly west. Visibility very good in places, but locally reduced around cloud banks.
-1C
Sub-zero in many valleys from dawn, only rising just above freezing all day.
Yorkshire Dales and North Pennines
Sunday 6th December 2020
Last updated
Thursday 3rd December 2020 at
4:25 PM
Low confidence in detail: Likely to vary in direction, 5 to 15mph.
Mostly small.
Risk snow on and off, may be very little.
Clusters of showers may give snow on and off for a few hours, rain lowest slopes. Much uncertainty though, may amount to very little other than just flurries.
Fairly extensive
Cloud will likely cover the hills fairly extensively through the day. Patches at varying heights, but some local breaks possible.
30%
Mostly cloudy. Visibility fairly murky and poor or very poor in snow/rain.
Around 0 or -1C
Some valley sub-zero at dawn, then slow rise though day to 2 to 4C.
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.