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Brecon Beacons: forecast wind
Thursday, 9 February 2012: dawn to dusk
Printable view Forecast issued: 1719 on Thursday, 9 February 2012
Overview for Friday
Rain, sleet and snow during the morning should slowly clear westwards. Largely dry in the afternoon with some brighter periods but staying cold.
| Hazards | Risk | Explanation |
|---|---|---|
| Blizzards | No Risk | |
| Heavy snow | No Risk | |
| Storm force winds | No Risk | |
| Gales | No Risk | |
| Severe chill effect | High | High risk of a severe wind chill throughout the day. |
| Persistent and extensive hill fog | High | Extensive hill fog to low levels during the morning, lifting and breaking by afternoon. |
| Thunderstorms | No Risk | |
| Heavy persistent rain | Low | Persistent rain in the morning may become heavy at times. |
| Strong Sunlight | No Risk |
key to hazards and forecast content
| Dawn to 0900 | 0900 to 1200 | 1200 to 1500 | 1500 to dusk |
 Heavy snow |
 Sleet |
 Light rain |
 Sunny intervals |
| 80% | 70% | 40% | 0% |
Detailed mountain weather forecast: Brecon Beacons
Friday
Weather
After a cloudy start with rain, sleet and snow likely the weather will slowly improve during the day. Sleet and snow are likely to all levels in the morning, with significant accumulations possible on high ground across the Brecon Beacons. It will slowly become drier and brighter from the east during the day, with most parts dry by afternoon. It will however remain cold, with temperatures not rising above freezing even at low levels.
Visibility
Very poor in fog, and moderate to poor in rain and snow during the morning. Becoming good in the afternoon as rain clears.
Hill fog
Extensive hill fog to the valley floors at first, this lifting and breaking with periods of hill fog above 700 metres in the afternoon.
Maximum winds above 400m
Southeasterly 30 mph
Temperature
| Valleys | Between minus 2 Celsius and plus 1 Celsius |
| 800 m | Minus 1 Celsius falling to minus 4 Celsius by evening. |
| Freezing level | Between sea-level and 100 metres. |
Saturday
Weather
Chance of some valley fog at first, but once this clears it will be a largely dry but very cold day across the Brecon Beacons. Temperatures will be well below freezing at first and will only slow rise to just above freezing in the afternoon. As a result, there is likely to be widespread ice which could prove challenging unless adequately equipped. Although generally sunny, there is a chance of a little cloud in the afternoon.
Visibility
Excellent.
Hill fog
Nil.
Maximum winds above 400m
Southeasterly 20 mph
Temperature
| Valleys | Minus 2 Celsius to plus 1 Celsius. |
| 800 m | Minus 3 Celsius |
| Freezing level | Between sea-level and 100 metres. |
Outlook
Sunday
Generally rather cloudy with hill fog affecting the peaks. Chance of a little light rain, this perhaps falling as sleet or snow over the higher parts of the National Park with the freezing level down to 700 metres.
Monday
A similar day to Sunday, with fairly widespread cloud and occasional rain, this falling as sleet or snow at height. The freezing level will again be around 700 metres. Chance of gale force northwesterly winds in the afternoon.
Tuesday
A cold day with temperatures struggling to rise above freezing. There may be a few showers, with these falling as snow above 300 metres. Strong to gale force northerly winds will affect the summits.
Neuadd Rain (near Pontsticill)
Altitude 353 metres
Rainfall measured at 15:00 Thursday, 09 February 2012
- Last 24 hours 0.0 mm
- Last 48 hours 0.0 mm
- Last 72 hours 0.8 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.
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The Enhanced Mountain forecast for Brecon Beacons has been discontinued. All forecast information for these locations can be found in the standard Mountain forecast above.
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