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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A damp and murky start, but brighter and milder later.

Today:

A rather damp and murky start for many, with outbreaks of rain or drizzle and extensive hill fog. However, it will become generally drier with some brighter spells developing during the afternoon. Becoming very mild in the brighter spells. Maximum Temperature 13C.

Tonight:

Cloudy with some rain and drizzle at first. It will become drier, with some clear spells developing from the west by dawn, with a touch of frost in places. Minimum Temperature 2C.

Tuesday:

After a cloudy start for southern and eastern parts, it will become drier and brighter, with good spells of sunshine. Feeling decent in the sunshine, despite the northerly breeze. Maximum Temperature 11C.

Outlook for Wednesday to Friday:

It will be mainly dry and bright, with good spells of sunshine during this period. However, it will be turning increasingly colder, with widespread frosts overnight.

Day 6 to 15

Dry with sunny spells as we head into next weekend with overnight frosts, along with patchy mist and freezing fog. However, outbreaks of rain or drizzle along with some hill snow and stronger winds are possible at times across northwestern areas. Temperatures will turn colder for most with wind from the east or northeast, possibly brisk in SE England. The cold weather will be mainly dry initially with a chance of snow flurries in the east and southeast. Heading into the following week, there is an increased chance of snow for many, especially in the south and east. Although the location and timing of any snowfall remains uncertain. However, some milder unsettled weather may still occur at times, especially in the west.

Day 16 to 30

At the start of this period it is likely to stay cold for most with widespread overnight frost. There will be a greater chance than usual of mainly easterly winds originating from continental Europe, which could bring very cold weather at times and the potential for some snowfall, especially in eastern and southern parts. Unusually, it will probably be driest in the northwest. As we head further into mid March there are indications that it may become more changeable and less cold, with the wettest weather and mildest temperatures likely to be in the south or the southwest of the UK, but this is currently very uncertain.

Met Office : WL : 2018-02-19T02:11:05

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