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yellow Warnings have been issued for the United Kingdom

Brecon Beacons

Weather hazards over 300m on Mon 02 Mar 2015

High risk

Severe chill effect
Strong to gale force winds and sub zero temperatures will lead to a significant chill effect.

Medium risk

Blizzards
Frequent heavy snow and hail showers. Snow above 200m will be blown around causing whiteout.
Gales
Gusts to gale force in heavy showers.

Low risk

Heavy snow
Snow showers will give additional accumulations and difficult walking conditions.
Thunderstorms
Showers through the day have the potential to turn thundery with hail and lightning strikes.
Strong sunlight
Sun glint off residual snow packs may make difficult walking conditions.

No risk

Storm force winds
none
Persistent extensive hill fog
none
Heavy persistent rain
none

Mon 02 Mar 2015

Staying windy with a mixture of sunshine and wintry showers. Showers, occasionally heavy and possibly thundery, will fall as rain, hail and sleet, with snow generally settling above 200m. Winds will be strong, with some gale force gusts near heavy showers, so it will feel cold with a notable wind chill. Any frozen valleys will thaw this morning.

Time
0600 to 0900 0900 to 1200 1200 to 1500 1500 to 1800 1800 to 2100 2100 to 2400
Weather
Light snow Light snow shower day Light snow shower day Heavy snow shower day Heavy snow shower night Light snow shower night
Precipitation probability
60% 40% 40% 40% 60% 40%

Visibility

Excellent visibility, but poor to very poor in showers.

Hill Fog

Summits clear at times, but occasional hill fog to 400m, mostly near snow showers.

Max wind above 400m

Westerly 35-40mph with gusts of 45-50mph at times. The strongest gusts in association with heavy showers.

Temperature

Valleys:
Zero rising to 7 Celsius.
800m:
Minus 4 Celsius.
Freezing level:
Generally 200-300m, although at the surface for a time early this morning.

Recent Rainfall

Location:
Neuadd Rain (near Pontsticill)
Altitude:
353 m
Rainfall measured at:
0300 on Mon 02 Mar 2015
Last 24 hours:
0.8 mm
Last 48 hours:
12.8 mm
Last 72 hours:
13.4 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: 0409 on Mon 02 Mar 2015

Tue 03 Mar 2015

Wintry showers will continue through Tuesday with sunny or clear intervals. Showers, possibly heavy and thundery at times, will be wintry with further snow accumulations likely above 300m, and may merge at times. Staying windy throughout with gale force gusts near the showers. Cold overnight with frost and icy surfaces.

Visibility

Excellent visibility, but poor to very poor in showers.

Hill Fog

Summits clear at times, but occasional hill fog to 500m, mostly near snow showers.

Max wind above 400m

Westerly 35-40mph with gusts of 45-50mph at times.

Temperature

Valleys:
Zero, rising to 8 Celsius
800m:
Minus 4 Celsius
Freezing level:
300-400m.

Issued at: 0409 on Mon 02 Mar 2015

Wed 04 Mar 2015

Any early showers will soon fade, leaving a dry and bright day. Winds will veer northwesterly and ease markedly from recent days. Freezing level around 300m, rising to 600m.

Issued at: 0409 on Mon 02 Mar 2015

Thu 05 Mar 2015

Dry and bright at first on Thursday, before cloud spreads in from the north and northwest, bringing hill fog with outbreaks of rain later in the day. Winds will increase to moderate. Freezing levels 600m rising above the summits.

Issued at: 0409 on Mon 02 Mar 2015

Fri 06 Mar 2015

Perhaps cloudy with some hill fog and drizzle at first, breaking up through the morning to allow some sunny spells. Mild, with freezing levels above the summits.

Issued at: 0409 on Mon 02 Mar 2015