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Brecon Beacons
Confidence
High for mainly dry and bright conditions over the next few days. Lower confidence for cloud amounts.
Saturday 23 February 2019
Weather hazards
Gales Low likelihood
Gale force winds (gusts over 50mph) make walking difficult and strenuous with a potential to be blown over by gusts. There is often a marked increase in winds through cols or on exposed ridges and summits. Distances can take longer to cover and compass bearings become harder to follow accurately.
Poor visibility Low likelihood
Poor visibility presents challenging route finding conditions. Visibility could be significantly less than 50 metres in all directions with few or no visual references, especially on featureless moors or plateaux. Distances become hard to judge and cliff or cornice edges can be difficult to recognise. These conditions require good navigational skills. There is a risk of white-out conditions when mist or fog is combined with extensive snow cover.
Headline
Low cloud lifting then dry, bright and breezy.
Weather at 600m
| 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|
|
|
|
|
|
| <05% | <05% | <05% | <05% | 20% | 20% |
| Chance of precipitation | |||||
|---|---|---|---|---|---|
| 1,500 | 1,500 | 1,600 | 1,900 | 2,400 | 2,400 |
|
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Wind speed and direction (mph) By altitude above mean sea level
| 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| 600m | S 27 37 | S 23 32 | S 20 26 | S 16 21 | S 13 17 | S 7 10 |
| 300m | S 8 23 | S 12 27 | S 10 21 | S 7 17 | S 6 12 | S 3 6 |
| Valley | E 4 11 | E 2 7 | S 8 17 | S 5 14 | S 4 10 | S 3 5 |
Temperature (°C) By altitude above mean sea level
| 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| 600m | 7 | 7 | 9 | 9 | 9 | 9 |
| 300m | 7 | 9 | 12 | 12 | 10 | 9 |
| Valley | 6 | 7 | 13 | 13 | 10 | 9 |
Feels like temperature (°C) By altitude above mean sea level
| 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| 600m | 2 | 3 | 5 | 6 | 6 | 7 |
| 300m | 5 | 6 | 10 | 11 | 8 | 8 |
| Valley | 4 | 6 | 11 | 12 | 9 | 8 |
Sunrise: 07:13
Sunset: 17:42
Moon phase:
Waning gibbous
Weather
A fine and dry day is to be expected, with long bright or sunny spells, often hazy due to high level cloud. It will be breezy in the morning though, with visibility slightly reduced and the odd patch of low cloud quickly dissipating. The cloud will also thicken from the west during the afternoon and may appear darker from a distance but the weather will remain dry throughout.
Chance of cloud-free mountain/hill tops at 600m
Mainly 90%. Summits remaining clear through most of the period with areas of cloud on low slopes lifting and clearing early in the morning.
Visibility
Excellent views from the tops, often hazy at low elevations with areas of mist and low cloud at first.
Meteorologist's view
Notably mild in the valleys with highs of 13-15 Celsius but feeling cool on the tops with a marked wind chill and gusts of 40mph.
Recent rainfall
- Location: Neuadd (Near Pontsticill)
- Altitude: 353m
- Measurement date: 03:00 on Sat 23 Feb 2019
- Last 24 hours: 0mm
- Last 48 hours: 0.6mm
- Last 72 hours: 3.8mm
Rainfall data provided by Natural Resources Wales. The Met Office is not responsible for content provided by third parties and may remove this data without warning.
Sunday 24 February 2019
Sunrise: 07:11
Sunset: 17:44
Moon phase:
Waning gibbous
Weather
A cloudy start with areas of mist and fog down in the valleys and on low slopes, lifting and clearing through the morning. High ground remaining sunny through most of the day.
Maximum wind speed expected
Southerly 10-15mph.
Chance of cloud-free mountain/hill tops at 600m
90%. Areas of low cloud on low slopes will lift and disperse through the morning. Summits clear throughout.
Temperature
- At 600m Plus 6 rising to 7 or 8C.
- Valley Plus 6C rising to 14 to 16C.
- Freezing level Above summits.
Visibility
Poor at times early morning and staying hazy at low levels but excellent views from the tops.
Monday 25 February 2019
Sunrise: 07:09
Sunset: 17:46
Moon phase:
Third quarter
Patchy low cloud early morning will disperse then another dry day with plenty of sunshine. Light southerly winds and very mild.
Tuesday 26 February 2019
Sunrise: 07:07
Sunset: 17:48
Moon phase:
Third quarter
Dry and mainly sunny, very mild with light winds.
Wednesday 27 February 2019
Sunrise: 07:05
Sunset: 17:49
Moon phase:
Third quarter
The dry, mild and settled conditions continue, with plenty of sunshine but some patchy low cloud in the morning, some slow to lift and dissipate.
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