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Brecon Beacons

Weather hazards over 300m on Sat 02 Jul 2016

High risk

No high risks
none

Medium risk

No medium risks
none

Low risk

Persistent extensive hill fog
Cloud bases may lower to 600 metres in the early morning, and in showers.
Thunderstorms
Low risk of lightning near showers.

No risk

Blizzards
none
Heavy snow
none
Storm force winds
none
Gales
none
Severe chill effect
none
Heavy persistent rain
none
Strong sunlight
none

Sat 02 Jul 2016

A few light showers are possible in the early hours with patches of hill fog. During the day sunny spells and a few showers are forecast. These showers may be locally heavy with low risk of lightning during the afternoon. Winds will be strong over peaks with gusts to 45 mph possible in the early hours, then moderating later in the day.

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
Light shower night Light shower night Light shower day Light shower day Heavy shower day Light shower day Sunny intervals Partly cloudy night
Precipitation probability
30% 30% 30% 30% 30% 30% 20% 20%

Visibility

Mainly good or very good, but moderate in showers and locally poor in patches of hill fog.

Hill Fog

Patches are possible above 600 metres early in the morning, and in heavier showers. Otherwise nil.

Max wind above 400m

Westerly fresh or strong with gusts to 45 mph at first, easing later to gusts of 35 mph, then becoming light during the evening.

Temperature

Valleys:
Plus 15 Celsius
800m:
Plus 7 Celsius
Freezing level:
Well above the peaks.

Recent Rainfall

Location:
Neuadd Rain (near Pontsticill)
Altitude:
353 m
Rainfall measured at:
1500 on Fri 1 Jul 2016
Last 24 hours:
6.8 mm
Last 48 hours:
11.0 mm
Last 72 hours:
32.6 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.

Sun 03 Jul 2016

Cloud will increase for a time during the morning, but otherwise some sunny spells are likely with cloud breaking. A few isolated light showers may form during the day. Winds mainly light at first, freshening on peaks later.

Visibility

Mainly good. Locally moderate in isolated showers. Locally very poor in early hill fog.

Hill Fog

Hill fog will be patchy in the early hours with cloud bases 500 metres, otherwise largely nil.

Max wind above 400m

Winds will become light for a time, then fresh westerly by evening, speeds to 25 mph on peaks in gusts.

Temperature

Valleys:
Plus 16 Celsius
800m:
Plus 9 Celsius
Freezing level:
Will be above the summits.

Mon 04 Jul 2016

Generally cloudy with hill fog and periods of rain and drizzle. Misty at low levels. Winds moderate or fresh westerly on peaks.

Tue 05 Jul 2016

Further patchy light rain is forecast during the morning and early afternoon. Some drier, brighter spells are likely during the afternoon.

Wed 06 Jul 2016

Dry at first with clear or sunny spells. Cloudier later with a few spots of light rain possible. Generally light or moderate winds.

Issued at: 1911 on Fri 01 Jul 2016