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Brecon Beacons

Weather hazards over 1000ft

High risk

No high risks
none

Medium risk

Strong sunlight
Long sunny spells throughout the day.

Low risk

No low risks
none

No risk

Blizzards
none
Heavy snow
none
Storm force winds
none
Gales
none
Severe chill effect
none
Persistent extensive hill fog
none
Thunderstorms
none
Heavy persistent rain
none

Fri 18 Apr 2014

Clear spells and light. mainly northerly, winds overnight leading to a cold start with frost and some patchy valley mist. It will be a dry day with long spells of warm sunshine with winds remaining light. Some patchy cloud for a time through the morning, clearing by lunch time. It will feel pleasantly warm when walking.

Time
0000 to 0300 0300 to 0600 0600 to 0900 0900 to 1200 1200 to 1500 1500 to 1800 1800 to 2100 2100 to 2400
Weather
Clear night Clear night Sunny intervals Sunny day Sunny day Sunny day Clear night Clear night
Precipitation probability
0% 0% 0% 0% 0% 0% 0% 0%

Visibility

Excellent or very good, very poor in any hill fog.

Hill Fog

Isolated patchy cloud from 600m at first. Lifting and clearing quickly after dawn.

Max wind above 400m

North to north-easterly 10-15mph at first.

Temperature

Valleys:
Plus 3 Celsius becoming plus 14 Celsius.
800m:
Plus 1 Celsius becoming plus 5 Celsius.
Freezing level:
Above summits.

Recent Rainfall

Location:
Neuadd Rain (near Pontsticill)
Altitude:
353 m
Rainfall measured at:
1500 on Thu 17 Apr 2014
Last 24 hours:
0.0 mm
Last 48 hours:
0.0 mm
Last 72 hours:
0.0 mm

Rainfall data provided by the Environment Agency. The Met Office is not responsible for content provided by third parties and may remove this data without warning.

Issued at: 1514 on Thu 17 Apr 2014

Sat 19 Apr 2014

A cold start after clear skies overnight. Another dry day with plenty of warm sunshine throughout, through becoming slightly hazy later. Winds remaining mainly light and easterly resulting some patchy cloud at first. Conditions will be pleasantly warm while walking and care should be taken in the sunshine.

Visibility

Excellent, reducing moderate to good in haze later. Very poor in any hill fog.

Hill Fog

Patchy cloud at 500m at first, soon clearing.

Max wind above 400m

Easterly 10-15mph, gusting 25mph at times.

Temperature

Valleys:
Plus 2 Celsius becoming plus 14 Celsius.
800m:
Plus 5 Celsius.
Freezing level:
Above summits.

Issued at: 1514 on Thu 17 Apr 2014

Sun 20 Apr 2014

A fine a dry start with cloud building from the east throughout the day, bringing hill fog through the afternoon. Winds also increasing from the northeast and rain arriving later. It will be noticeably colder that previous days.

Issued at: 1514 on Thu 17 Apr 2014

Mon 21 Apr 2014

A dull, cloudy day with rain at times throughout. There will be some brighter spells at times too, but hill fog will be extensive above 500m. Winds remaining fresh to strong from the northeast, making walking difficult at times and also keeping temperatures down. Care should be taken.

Issued at: 1514 on Thu 17 Apr 2014

Tue 22 Apr 2014

Drier and less windy than on Monday. Still a generally cloudy day with extensive hill fog for the highest peaks and spells of rain or drizzle throughout the day. However, there will be more in the way of brighter spells.

Issued at: 1514 on Thu 17 Apr 2014