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Brecon Beacons: latest wind
Thursday, 9 February 2012: dawn to dusk
Printable view Forecast issued: 0346 on Thursday, 9 February 2012
Overview for Thursday
A rather cloudy day. Dry initially but outbreaks of rain or sleet are likely to develop by the afternoon.
| Hazards | Risk | Explanation |
|---|---|---|
| Blizzards | No Risk | |
| Heavy snow | No Risk | |
| Storm force winds | No Risk | |
| Gales | No Risk | |
| Severe chill effect | Low | Sub-zero temperatures and outbreaks of rain will lead to a risk of chill in the afternoon. |
| Persistent and extensive hill fog | Medium | Persistent hill fog may be present in the morning and may also develop later. |
| Thunderstorms | No Risk | |
| Heavy persistent rain | No Risk | |
| Strong Sunlight | No Risk |
key to hazards and forecast content
| Dawn to 0900 | 0900 to 1200 | 1200 to 1500 | 1500 to dusk |
 Dull |
 Sunny intervals |
Sunny intervals |
 Light rain |
| 10% | 0% | 0% | 70% |
Detailed mountain weather forecast: Brecon Beacons
Thursday
Weather
A dry but rather cloudy start. Some bright spells should develop around midday, but outbreaks of rain and possibly sleet will spread from the north through the afternoon. It should be noted, with temperatures by day failing to rise above freezing at some heights, the rain may freeze on contact with the ground, leading to some very challenging climbing conditions.
Visibility
Generally good, but lowering to moderate to poor in rain later. Very poor in any hill fog.
Hill fog
Some thin but potentially widespread hill fog likely between 200-400m at first. This breaking up by lunchtime, but further hill fog developing above 400 m by dusk, with occasional hill fog as low as 200 m.
Maximum winds above 400m
Northwesterly 20 mph.
Temperature
| Valleys | Minus 5 Celsius becoming zero Celsius. |
| 800 m | Plus 1 Celsius. |
| Freezing level | Temperatures between the surface and 500 m below freezing. Above 500 m temperatures will be just above freezing. |
Friday
Weather
A cloudy day with snow, particularly across the east of the Park. Hill fog is likely to be extensive, with some poor visibility likely, particularly in snow. 5-10cms are likely to build up by the end of the day.
Visibility
Generally moderate, poor to very poor in snow and very poor in hill fog.
Hill fog
Hill fog likely above 300 m with cloud bases extending to the valley floors at times, mainly in snow.
Maximum winds above 400m
Southerly 25 mph.
Temperature
| Valleys | Zero Celsius throughout. |
| 800 m | Zero Celsius. |
| Freezing level | Temperatures generally below freezing at all heights. |
Outlook
Saturday
Generally rather cloudy with further spells of rain, sleet and possibly snow. Hill fog is possible, mainly over the higher peaks. Light southerly winds. Freezing level around 500m.
Sunday
A cloudy but somewhat drier day. Hill fog still likely, largely from mid levels upwards. Winds will be very light and variable in direction and the freezing level may just creep above the summits.
Monday
Another cloudy day with outbreaks of light rain or drizzle possible. It will also be windier than previous days, but the freezing level should be just above the summits.
Neuadd Rain (near Pontsticill)
Altitude 353 metres
Rainfall measured at 03:00 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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