Use my current location crosshair

Brecon Beacons

Weather hazards over 300m on Sat 23 Aug 2014

High risk

Strong sunlight
Long sunny spells with moderate to high UV levels.

Medium risk

No medium risks
none

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

Sat 23 Aug 2014

Generally dry with clear spells through the early hours will lead to a chilly start to the day. It will then be a mainly dry day with plenty of sunny spells and the odd isolated shower possible. It will feel pleasant when walking on southern sheltered slopes in the sun. There will be a fresh northwesterly breeze.

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
Partly cloudy night Partly cloudy night Sunny intervals Sunny intervals Partly cloudy night Sunny intervals Partly cloudy night Partly cloudy night
Precipitation probability
0% 0% 0% 10% 10% 10% 0% 0%

Visibility

Generally excellent, moderate in any showers.

Hill Fog

Cloud bases remaining above the summits.

Max wind above 400m

Northwesterly 20-25mph.

Temperature

Valleys:
Plus 7 Celsius becoming plus 17 Celsius.
800m:
Plus 6 Celsius becoming plus 9 Celsius.
Freezing level:
Above the summits, though frost possible in valleys at first.

Recent Rainfall

Location:
Neuadd Rain (near Pontsticill)
Altitude:
353 m
Rainfall measured at:
1500 on Fri 22 Aug 2014
Last 24 hours:
0.0 mm
Last 48 hours:
0.4 mm
Last 72 hours:
0.6 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: 1435 on Fri 22 Aug 2014

Sun 24 Aug 2014

A dry, bright and cold start but cloud will increase from the west through the morning and winds will become southwestery and increase. Rain, possibly heavy at times, will reach the range by the evening bringing cloud bases as low as 400m into the evening.

Visibility

Excellent at first, moderate in rain, poor in heavy rain, very poor in hill fog.

Hill Fog

Nil for most of the day, becoming extensive at 400m over southern and western slopes through the evening.

Max wind above 400m

Northwesterly 15-20mph, backing southwesterly 20-25mph later.

Temperature

Valleys:
Plus 6 Celsius becoming plus 15 Celsius.
800m:
Plus 5 Celsius becoming plus 9 Celsius.
Freezing level:
Above the summits, though frost possible in valleys at first.

Issued at: 1435 on Fri 22 Aug 2014

Mon 25 Aug 2014

A wet and windy Bank Holiday Monday over the range. Rain will be heavy at times with winds fresh to strong throughout. Rain will tend to ease later in the day.

Issued at: 1435 on Fri 22 Aug 2014

Tue 26 Aug 2014

Rain will clear to the south through the day, but timings are unclear at this stage. Mainly dry conditions with isolated showers will follow and winds tending to ease.

Issued at: 1435 on Fri 22 Aug 2014

Wed 27 Aug 2014

A generally dry and bright start to the day, but cloud will build through the day with rain arriving later. Again timings for the arrival of the rain are unclear at this stage.

Issued at: 1435 on Fri 22 Aug 2014