Our new beta website has recently seen some changes. Please take a look and let us know what you think.
Digital Map Data:
© Collins Bartholomew Ltd (2006)
Postcode information:
© Royal Mail Group PLC (2006)
Snowdonia: latest radar
Wednesday, 8 February 2012: dawn to dusk
Printable view Forecast issued: 1709 on Wednesday, 8 February 2012
Overview for Thursday
A cloudy day with outbreaks of rain, these leading to significant ice risk in the morning.
| Hazards | Risk | Explanation |
|---|---|---|
| Blizzards | No Risk | |
| Heavy snow | No Risk | |
| Storm force winds | No Risk | |
| Gales | No Risk | |
| Severe chill effect | Medium | Risk of chill during the morning with sub-zero temperatures and spells of freezing rain. |
| Persistent and extensive hill fog | High | High risk of hill fog, particularly across southern and western parts. |
| 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 |
 Light rain |
Light rain |
Light rain |
Light rain |
| 90% | >90% | >90% | >90% |
Detailed mountain weather forecast: Snowdonia
Thursday
Weather
A cloudy day with outbreaks of rain throughout. During the morning this is likely to fall on frozen ground below 400 m, which will lead to a significant ice risk and some very challenging climbing conditions. Through the afternoon it should warm up slightly, decreasing this risk.
Visibility
Moderate in rain and very poor in hill fog.
Hill fog
Widespread hill fog likely above 300 m across western and southern parts, with occasional patches down to 100 m. Further north and east hill fog may well be more broken.
Maximum winds above 500m
Westerly 25 mph.
Temperature
| Valleys | Minus 4 Celsius becoming plus 1. |
| 900 m | Plus 1 Celsius. |
| Freezing level | Temperatures between the surface and 400 m will be below freezing to start, above this height it will be just above freezing. Temperatures gradually increasing below 400m, rising just above freezing by early afternoon. |
Friday
Weather
A rather cloudy day with outbreaks of rain. This rain may turn to sleet or snow for a time during the afternoon. Hill fog will once again be extensive.
Visibility
Generally moderate in rain, poor to very poor in any snow and very poor in hill fog.
Hill fog
Hill fog likely above 700 m, with patches down to 500 m later, mainly in association with snow.
Maximum winds above 500m
Southerly 25 mph.
Temperature
| Valleys | Zero rising to plus 2 Celsius. |
| 900 m | Plus 2 Celsius, lowering to minus 1 in the afternoon. |
| Freezing level | Generally above the summits, possibly lowering to 500 m by the afternoon. |
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.
Latest: 04/02/2012 13:41 Despite temperatures rising, winter conditions prevail, Ice Axe and Crampons recommended. .---- .---- .----
Observations
Webcams
The Met Office is not responsible for the content of external sites. If you would like to consider adding a link to your webcam, please contact us.
The Enhanced Mountain forecast for Snowdonia has been discontinued. All forecast information for these locations can be found in the standard Mountain forecast above.
RSS warnings and alerts
Regional warning and alert feeds
Weather gadgets
Vista weather gadget
Firefox weather gadget
Related internet links
Avalanche Information for Scotland
The Met Office is not responsible for the content of external internet sites.
