Use my current location crosshair

Brecon Beacons

Weather hazards over 300m on Tue 04 Aug 2015

High risk

No high risks
none

Medium risk

No medium risks
none

Low risk

Gales
South-westerley winds will gust to around 35-45mph through the day on Tuesday, easing by dusk
Severe chill effect
Strong winds and persistent but light winds will make it feel cold towards the peaks.
Persistent extensive hill fog
Occasional hill fog above 700m, particularly on south-west facing upslopes
Strong sunlight
Some breaks may form to the lee of high ground giving a low risk of some strong sunlight

No risk

Blizzards
none
Heavy snow
none
Storm force winds
none
Thunderstorms
none
Heavy persistent rain
none

Tue 04 Aug 2015

Winds will increase along with the cloud through the early hours of Tuesday leading to a largely dull and damp day. Winds and rain will gradually ease through the evening, becoming largely dry by the end of the afternoon. the best of any weather will be on north east facing upslopes.

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 Light rain Light rain Light rain Light rain Cloudy Cloudy Cloudy
Precipitation probability
10% 40% 60% 70% 60% 20% 10% 20%

Visibility

Moderate, though occasionally good in any rain breaks. Locally poor on southwest facing upslopes. Occasional fog about 700m

Hill Fog

Broken hill fog is expected at times above 700m. Mostly likely between 0600-1500.

Max wind above 400m

35-45 mph

Temperature

Valleys:
Plus 11 Celsius, rising to Plus 14 Celsius
800m:
Plus 7-9 Celsius
Freezing level:
Above summits

Recent Rainfall

Location:
Neuadd Rain (near Pontsticill)
Altitude:
353 m
Rainfall measured at:
1500 on Mon 03 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.

Wed 05 Aug 2015

Some outbreaks of rain soon arriving after midnight leading to a damp and dull start on Wednesday. Some cloud breaks may form on northern facing upslopes during the afternoon, but staying cloudy across southern slopes with some outbreaks of rain at times. some heavy rain may be possible across all parts into the evening with a low risk of thunder.

Visibility

Good to very good, but moderate in any rain across the southern upslopes.

Hill Fog

Small risk of hill fog above 800m

Max wind above 400m

25-30mph

Temperature

Valleys:
Plus 10 rising to 15 Celsius
800m:
Plus 8 Celsius
Freezing level:
Above summits

Thu 06 Aug 2015

Lighter winds with mostly dry fine weather. A small risk of a shower forming during the afternoon, but most peaks should stay dry.

Fri 07 Aug 2015

Dry and fine on Friday with light winds. Again there is a small risk of isolated showers forming during the afternoon, but most peaks should stay dry.

Sat 08 Aug 2015

Pleasant conditions initially on Saturday, however by the end of the day the next weather system looks to move in from the west, bringing some cloud, and possibly rain by midnight.

Issued at: 1617 on Mon 03 Aug 2015