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

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

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]

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

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

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

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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Becoming wet and windy across the northwest later on Friday.

This Evening and Tonight:

Many places will be dry overnight with lengthy clear spells which will allow it to become chilly compared with recent nights. However, there will also be a few showers, these are most likely across the west. Minimum Temperature 10C.

Friday:

After a bright start, cloud will thicken bringing outbreaks of rain and drizzle. This will be heaviest over northern and western hills but it should remain dry in the southeast. Maximum Temperature 19C.

Outlook for Saturday to Monday:

Mostly cloudy on Saturday with some drizzle over hills, but also a little brightness. Windier on Sunday, with some heavier rain. Monday probably fairly cloudy. Often warm and humid throughout.

Day 6 to 15

On Tuesday northwestern areas will be cloudy and windy with outbreaks of rain, but with clearer conditions reaching the far northwest later. Elsewhere it will be drier with bright spells, and it will be warm and humid in the southeast. By Wednesday some rain may reach southern areas, but clearer weather should spread from the northwest by the end of the day. Through the rest of the week and weekend there will probably be a good deal of dry, bright or sunny weather, especially in the south, while the far west and northwest will have some thicker cloud and rain at times. This weather pattern is quite likely to continue through the rest of the period, with temperatures probably around normal, but perhaps rather cool in the north and northwest

Day 16 to 30

During this period it looks likely that the weather pattern will only change slowly. Areas of high pressure and associated settled weather are likely to dominate across the south and southeast, bringing generally dry and bright weather here. More changeable conditions with outbreaks of rain and strong winds are likely across the north and northwest, perhaps extending southeastwards at times. Into September, confidence in the forecast decreases. However, we will probably see longer dry and settled spells at times, these perhaps becoming more dominant than previously in the north and northwest. Temperatures by day are likely to be generally warmer than average, but there will an increasing chance of chillier nights.

Met Office : WL : 2018-08-16T16:11:28

Issued: 1800 on 2018-08-16 for Brecon Beacons

Today

Bright morning with sunny spells but cloud increasing from midday. Strengthening southwesterly winds.

Summary Mainly dry with clear spells through the early hours. Then a bright start with some good spells of sunshine, with the best of any sunnier spells in the east. However cloud increases from the west from midday with patchy drizzle affecting the far west from mid-afternoon, although eastern hills remain dry with further sunny spells. Hill fog and patchy drizzle become more widespread through the evening.
Chance of Cloud free tops Around 90% at first with only little or no cloud expected below summit level. Chances fall close to zero across western hills through the afternoon with periods or persistent cloud developing above 450m with patches lower while eastern hills see chances gradually fall to 30% as periods of cloud above 600m develop with chances in the east falling further during the evening.
Ground conditions
Visibility Very good falling to just a few kilometres in drizzle.
Poor Visibility: Medium likelihood
Strong Sunlight: Medium likelihood
060708 091011 121314 151617 181920 212223
Weather Clear night Partly cloudy (night) Sunny intervals Sunny intervals Sunny intervals Cloudy
Rain 10% 10% 10% <05% <05% 20%
Temp (tops) 10 9 9 11 12 12
Wind (tops) 15 14 14 15 18 21
Freezing Level 2000m 1900m 1900m 1900m 3000m 3500m
Day 1

A mostly cloudy day with patchy light rain and drizzle, especially across western hills. Some brighter or sunnier spells likely at times in the east.

Ice Above the summits.
Visibility Good falling to just a few kilometres in rain and drizzle.
Wind Southwesterly 25-30mph, with gusts around 45mph over ridges and summits, gradually decreasing 15mph from late morning.
Temp Plus 15 Celsius (at high level)
Day 2

Rather cloudy with patchy rain and drizzle through the morning but becoming drier and brighter in the afternoon. Strengthening southwesterly winds, veering westerly and easing later. Freezing level above the summits.

Day 3

A bright start but becoming rather cloudy with patchy drizzle and hill fog for the afternoon. Mainly light westerly winds. Freezing level above the summits.

Day 4

A bright day with some sunny spells and a few showers. Occasionally fresh southwesterly winds. Freezing level above the summits.

Data: Met Office