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yellow Warnings have been issued for the United Kingdom

Brecon Beacons

Weather hazards over 300m on Tue 09 Feb 2016

High risk

Gales
Considerable buffeting on higher level routes.
Severe chill effect
Risk of hypothermia unless adequately protected

Medium risk

Blizzards
Medium risk of blizzard conditions on the peaks by evening.

Low risk

Persistent extensive hill fog
Some navigation difficulties possible on high level routes by evening.

No risk

Heavy snow
none
Storm force winds
none
Thunderstorms
none
Heavy persistent rain
none
Strong sunlight
none

Tue 09 Feb 2016

Some clear spells and a few wintry showers through the early hours, with winds continuing to moderate, giving a cold start to Tuesday with a frost in places. Well broken cloud at times through the morning with scattered wintry showers. More cloudy in the afternoon with showers becoming more frequent, and merging towards evening to give some more general sleet or snow on the hills, with blizzard conditions possible across higher peaks. Significant wind chill on the peaks.

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 Sleet shower day Sleet shower day Sleet shower night Sleet shower night
Precipitation probability
40% 40% 30% 40% 60% 70% 80% 60%

Visibility

Good or very good, becoming moderate to poor at times in showers. Very poor in hill fog.

Hill Fog

Occasionally broken around 500m in showers, and locally broken or blanket near 400m towards evening.

Max wind above 400m

Westerly 40 gust 50mph becoming northwesterly 50 gust 60mph

Temperature

Valleys:
Zero becoming Plus 7 Celsius
800m:
Minus 1 Celsius
Freezing level:
600m, lowering to 400m at times in showers.

Recent Rainfall

Location:
Neuadd Rain (near Pontsticill)
Altitude:
353 m
Rainfall measured at:
1500 on Mon 8 Feb 2016
Last 24 hours:
35.6 mm
Last 48 hours:
52.6 mm
Last 72 hours:
90.8 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 10 Feb 2016

Becoming mostly dry through the early hours with winds moderating and some clear spells developing. A cold start to Wednesday with frost in places, then the day should remain mostly dry with well broken cloud, and just the small risk of an isolated wintry shower. Winds on the hills continuing to moderate.

Visibility

Very good or excellent, isolated moderate in any showers, and very poor in hill fog.

Hill Fog

Isolated well broken or broken around 600m.

Max wind above 400m

Northwesterly 35 gust 45 mph early in the day.

Temperature

Valleys:
Minus 1 becoming Plus 8 Celsius
800m:
Minus 2 Celsius
Freezing level:
Near or below freezing at most levels at first, rising to 600m during the day.

Thu 11 Feb 2016

A cloudier day is likely with occasional showers, these wintry on the hills. Winds becoming strong southerly by evening.

Fri 12 Feb 2016

Some uncertainty, but currently expected to be cloudy with outbreaks of rain or sleet, and perhaps some significant snow across the peaks. Strong easterly winds are likely at elevation, with extensive hill fog in places.

Sat 13 Feb 2016

Continuing uncertainty, but likely to remain unsettled with occasional rain and a wintry mix at elevation, and with fresh or strong northeastly winds.

Issued at: 1636 on Mon 08 Feb 2016