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Brecon Beacons

Weather hazards over 300m on Tue 22 Jul 2014

High risk

Strong sunlight
Long spells of sunshine combined with high UV levels will bring a high risk of sunburn in exposure.

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

Tue 22 Jul 2014

Any shallow mist and fog patches in the valleys will soon clear after dawn to leave another fine and dry day across the park with some long spells of sunshine. It will be warm too with just a gentle breeze, and high UV levels will bring a high risk of sunburn.

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

Visibility

Very good, but poor in any valley mist or very poor in fog patches.

Hill Fog

Nil.

Max wind above 400m

Northeasterly 20mph later.

Temperature

Valleys:
Plus 11, becoming plus 24 Celsius.
800m:
Plus 15 Celsius.
Freezing level:
Above the summits.

Recent Rainfall

Location:
Neuadd Rain (near Pontsticill)
Altitude:
353 m
Rainfall measured at:
0300 on Tue 22 Jul 2014
Last 24 hours:
0.0 mm
Last 48 hours:
0.0 mm
Last 72 hours:
20.4 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.

Issued at: 0541 on Tue 22 Jul 2014

Wed 23 Jul 2014

After a mostly clear night, low cloud will spread in from the east before dawn to give areas of hill fog. This should largely lift and clear by mid-morning though, to leave another warm, dry and mostly sunny day. The odd isolated shower may develop in the afternoon, however high UV levels will again bring a high risk of sunburn.

Visibility

Very good, but very poor in hill fog.

Hill Fog

Areas of stratus down to 300m during the first part of the morning, with isolated patches down to 200m over the eastern slopes.

Max wind above 400m

Easterly 30mph.

Temperature

Valleys:
Plus 12, rising to 25 Celsius.
800m:
Plus 15 Celsius.
Freezing level:
Above the summits.

Issued at: 0541 on Tue 22 Jul 2014

Thu 24 Jul 2014

Many parts of the park will continue to remain generally fine with warm sunny spells, but there is an increased risk of heavy and perhaps thundery showers developing at times during the afternoon and evening. UV levels will remain high however it should feel a touch cooler than earlier in the week with a moderate easterly breeze.

Issued at: 0541 on Tue 22 Jul 2014

Fri 25 Jul 2014

Although mostly dry and bright or sunny to start, there is a risk of scattered showers developing by afternoon once again. Some of these may turn heavy and become slow-moving with just a light easterly breeze. It will feel very warm on the slopes, with high UV levels bringing a high risk of sunburn.

Issued at: 0541 on Tue 22 Jul 2014

Sat 26 Jul 2014

It will be a cloudier start to the weekend, although still rather bright at times and feeling warm. There's a chance of some showery rain arriving from the west later in the day, perhaps bringing some hill fog. Winds will be mostly light.

Issued at: 0541 on Tue 22 Jul 2014