Picws Du, from Fan Foel

Picws Du, from Fan Foel

SWC Walk 86 Fan Brycheiniog and Fan Foel (The Black Mountain)

11-Oct-16 • thomasgrabow on Flickr

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Fan Fechan Moraine at bottom of Fan Hir Escarpment

Fan Fechan Moraine at bottom of Fan Hir Escarpment

SWC Walk 86 Fan Brycheiniog and Fan Foel (The Black Mountain)

11-Oct-16 • thomasgrabow on Flickr

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Northerly Views from Fan Hir towards Glasfynydd Forest

Northerly Views from Fan Hir towards Glasfynydd Forest

SWC Walk 86 Fan Brycheiniog and Fan Foel (The Black Mountain)

11-Oct-16 • thomasgrabow on Flickr

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Wild Hill Ponies (on Cefn Disgwylfa) [off-route]

Wild Hill Ponies (on Cefn Disgwylfa) [off-route]

SWC Walk 86 Fan Brycheiniog and Fan Foel (The Black Mountain)

11-Oct-16 • thomasgrabow on Flickr

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Fan Gyhirych in the Evening Sun

Fan Gyhirych in the Evening Sun

SWC Walk 86 Fan Brycheiniog and Fan Foel (The Black Mountain)

12-Oct-16 • thomasgrabow on Flickr

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Fan Gyhirych, from ascent up Allt Fach

Fan Gyhirych, from ascent up Allt Fach

SWC Walk 86 Fan Brycheiniog and Fan Foel (The Black Mountain)

11-Oct-16 • thomasgrabow on Flickr

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Fan Hir Ridge in clouds

Fan Hir Ridge in clouds

SWC Walk 86 Fan Brycheiniog and Fan Foel (The Black Mountain)

11-Oct-16 • thomasgrabow on Flickr

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Black Mountain (Fan Brycheiniog and Fan Foel) from Glyntawe walk

A strenous start then easy route finding along a glacial ridge through wild upland scenery to one of the highest peaks in the Brecon Beacons National Park with spectacular views.

Hiking Weather

10 Day Forecast for Glyntawe

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Cold and bright, but wintry showers in places.

Today:

Bright and frosty start with icy patches. Frequent showers are likely at first, falling as snow over the hills, and to lower levels in a few places, although it is unlikely to settle at low levels. Windier than yesterday. Maximum Temperature 7C.

Tonight:

The wintry showers will continue overnight, leaving icy stretches where they have fallen. Where skies have remained clear there will be a widespread frost forming. Minimum Temperature -1C.

Sunday:

A frosty start with perhaps a few icy patches where showers have fallen. Still bright to begin with a few wintry showers, but skies will start to turn cloudier later. Maximum Temperature 9C.

Outlook for Monday to Wednesday:

Wet and windy Monday morning, but less cold. Clearing later to bright spells and some showers. Colder and brighter by the middle of next week, with fewer showers than recently.

Day 6 to 15

Wednesday and Thursday will see a mixture of sunny spells and showers. The showers mainly affecting exposed northern and eastern parts, especially the North Sea coasts, but not exclusively. The showers will be heavy at times and turning wintry over higher ground. Windy, with gales down the east coast on Wednesday. Similar conditions look likely to persist into Friday and the weekend, with showers continuing to affect eastern parts, but drier with plenty of sunshine elsewhere. The showers may be wintry across all parts, but any snow accumulations most likely over higher ground, but perhaps to some lower levels in the north. Staying rather cold, with temperatures below the average into early December. However, there is a chance of less cold, cloudier conditions spreading southeastwards, with some rain at times.

Day 16 to 30

During this period of December, it looks likely that the cold conditions may persist across the United Kingdom, with a generally blocked and slow moving weather patterns, which brings more uncertainty than normal into the forecast. We are likely to see a mixture of sunshine and showers for many, with the showers turning increasingly wintry over the hills, but not exclusively. Temperatures will probably be below the average through to mid-December. However, there is the chance of periods of milder, wetter and windier weather, with increased amounts of rainfall, during the middle of the month, especially in the west. This could see temperatures recover closer to the average.

Met Office : WL : 2017-11-25T02:03:08

Issued: 0600 on 2017-11-23 for Brecon Beacons

Today

Bright and cold, with isolated wintry showers. Strong winds easing later.

Summary A mainly dry and bright but cold day across the park. However, there will be some isolated showers developing by afternoon, with these turning wintry above around 600 metres. It will be windy through much of the day with southwesterly gales, these easing later.
Chance of Cloud free tops 90%, but cloud probably touching tops around 700 metres through the day in any heavier showers.
Ground conditions
Visibility Poor or very poor in any wintry showers, otherwise very good or excellent.
Gales: High likelihood
Severe Chill Effect: High likelihood
Poor Visibility: Medium likelihood
060708 091011 121314 151617 181920 212223
Weather Clear night Sunny intervals Sunny intervals Sunny intervals Partly cloudy (night) Cloudy
Rain <05% 10% 40% 30% 10% 20%
Temp (tops) 2 3 4 4 3 3
Wind (tops) 27 34 32 21 15 10
Freezing Level 700m 800m 1000m 900m 800m 700m
Day 1

A dry and frosty start, with some clear spells giving way to a dry and bright morning with light winds. Showers developing through the afternoon, wintry at times over the highest tops. It will feel cold with a significant chill effect likely.

Ice 400 metres.
Visibility Very good or excellent, but poor or very poor in any wintry showers.
Wind Westerly gusts of 25mph.
Temp Minus 1 Celsius. (at high level)
Day 2

Sunshine and occasionally wintry showers, with strong northwesterly winds, which could reach gale force at times. Feeling cold with the freezing level around 400 metres.

Day 3

Cold with strong to gale force northwesterly winds. Sunny spells and isolated, occasionally wintry showers. Turning cloudy into the evening, with outbreaks of rain developing overnight as winds ease. Freezing levels at 500 metres rising to 2000 metres.

Day 4

Cloudy with outbreaks of occasionally heavy rain clearing to sunny intervals and scattered showers and with freezing levels lowering again.

Data: Met Office