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Not available Not available Not available Not available 1200 on Fri 19 Mar 2010 1500 on Fri 19 Mar 2010 1800 on Fri 19 Mar 2010 2100 on Fri 19 Mar 2010 0000 on Sat 20 Mar 2010 0300 on Sat 20 Mar 2010 0600 on Sat 20 Mar 2010 0900 on Sat 20 Mar 2010 1200 on Sat 20 Mar 2010 1500 on Sat 20 Mar 2010 1800 on Sat 20 Mar 2010 Night-time Sat 20 Mar 2010 Daytime Sun 21 Mar 2010 Night-time Sun 21 Mar 2010 Daytime Mon 22 Mar 2010 Night-time Mon 22 Mar 2010 Daytime Tue 23 Mar 2010 Night-time Tue 23 Mar 2010
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Updated: 1045 on Fri 19 Mar 2010
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Snowdonia: forecast temperature

Friday, 19 March 2010: dawn to dusk

Forecast issued: 0447 on Friday, 19 March 2010

Printable view

Overview for Friday

Cloudy but mostly dry until late afternoon with one or two sunny spells possible. Rain perhaps reaching southern areas around sunset.

Hazards Risk Explanation
Blizzards No Risk  
Heavy snow No Risk  
Storm force winds No Risk  
Gales Low Low risk of gusts to 50 mph over the highest peaks and ridges at first this morning.
Severe chill effect No Risk  
Persistent and extensive hill fog No Risk  
Thunderstorms No Risk  
Heavy persistent rain No Risk  

Key to Hazards

Weather summary and probability of precipitation for Friday
Dawn to 0900 0900 to 1200 1200 to 1500 1500 to dusk
Sunny intervals
Sunny intervals 		Sunny intervals
Sunny intervals 		Cloudy
Cloudy 		Light rain
Light rain
0% 0% 0% 30%

Detailed mountain weather forecast: Snowdonia

Friday

Weather

A mostly cloudy but dry day in Snowdonia, perhaps with a few sunny spells during this morning and bright spells at first this afternoon. However cloud will thicken later this afternoon, perhaps bringing some outbreaks of rain towards dusk across southern areas of the Park.

Visibility

Generally moderate or good, although perhaps becoming poor in rain later. Very poor in any hill fog.

Hill fog

Patchy hill fog is possible above 600 metres this morning, mainly in the west, otherwise nil.

Maximum winds above 500m

Southwest 30 to 35 mph with gusts to 50 mph at first this morning.

Temperature

Valleys Plus 10 Celsius.
900 m Plus 4 Celsius.
Freezing level Above the summits.

Saturday

Weather

Remaining cloudy throughout the day with outbreaks of rain, although some drier interludes may develop later. Rain may be heavy at times, especially during the morning.

Visibility

Generally moderate, but occasionally poor in heavier rain and very poor in hill fog.

Hill fog

Widespread hill fog above 400 metres, with occasional patches around 200 metres, mostly across the west.

Maximum winds above 500m

Southwesterly becoming northwesterly 25-30 mph, with gusts to 40 mph.

Temperature

Valleys Plus 9 Celsius.
900 m Plus 5 Celsius.
Freezing level Above the summits.

Outlook

Sunday

Rain clearing early to leave a mostly dry day, although staying rather cloudy. One or two showers remain likely with brisk southwesterly winds.

Monday

Staying mild and damp, with rain and a good deal of low cloud likely. Moderate southerly winds will turn westerly through the day.

Tuesday

Remaining unsettled and mild, with further rain or showers and moderate westerly winds.

North East England West Midlands Grampian South West England Central, Tayside & Fife Northern Ireland North West England East of England Highlands & Eilean Siar Strathclyde Wales East Midlands SW Scotland, Lothian Borders London & South East England Yorkshire & Humber