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Brecon Beacons

Weather hazards over 300m on Sun 02 Aug 2015

High risk

Strong sunlight
High UV levels will lead to sunburn if not adequately covered.

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

Sun 02 Aug 2015

A cloudy start with some occasional light rain. Cloud breaks this morning to leave a fine and dry day with good spells of sunshine. With light southeasterly winds it will feel quite warm.

Time
0600 to 0900 0900 to 1200 1200 to 1500 1500 to 1800 1800 to 2100 2100 to 2400
Weather
Cloudy Sunny intervals Sunny day Sunny intervals Sunny intervals Partly cloudy night
Precipitation probability
10% 0% 0% 0% 20% 10%

Visibility

Generally good.

Hill Fog

Scattered around 500 metres at first becoming nil.

Max wind above 400m

Southerly 35mph later.

Temperature

Valleys:
Plus 10 Celsius becoming plus 22 Celsius.
800m:
Plus 8 Celsius becoming plus 11 Celsius.
Freezing level:
Above the summits.

Recent Rainfall

Location:
Neuadd Rain (near Pontsticill)
Altitude:
353 m
Rainfall measured at:
0300 on Sun 02 Aug 2015
Last 24 hours:
0.4 mm
Last 48 hours:
0.4 mm
Last 72 hours:
0.4 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.

Mon 03 Aug 2015

Clouding over during the night with some outbreaks of light rain or drizzle by dawn. A damp morning with further light rain or drizzle. This should start clearing from the west by midday with brighter skies and some sunshine breaking through.

Visibility

Moderate or poor for much of the day but becoming very good later.

Hill Fog

Blanket or overcast around 300-400 metres becoming well broken above 600 metres by midday then gradually clearing early afternoon..

Max wind above 400m

Southwesterly 30mph.

Temperature

Valleys:
Plus 16 Celsius becoming plus 20 Celsius.
800m:
Plus 12 Celsius.
Freezing level:
Above the summits.

Tue 04 Aug 2015

A windy day with blustery and gusty southwesterly winds. A day of sunny spells and scattered showers. The showers are more likely to come through in bands during the afternoon and some of these could be heavy. Very good visibility becoming moderate or poor in showers.

Wed 05 Aug 2015

Continuing unsettled through Wednesday with probably a dry start but with some outbreaks of rain with associated hill fog edging in from the west during the day. Timing on the rain is uncertain. Fresh southerly winds and generally good visibility until the rain arrives.

Thu 06 Aug 2015

Winds ease down a bit on Thursday and although it may start cloudy with some hill fog this should clear to sunny spells.

Issued at: 0331 on Sun 02 Aug 2015