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Yorkshire Dales mountain area forecast

Forecast issued: 1647 on Sunday, 20 April 2014

Overview for Monday

A cloudy damp start with patchy rain or drizzle and extensive hill fog slowly improving during Monday morning with some brightness, and further showers, expected during the afternoon.

Hazards

Medium risk of Persistent extensive hill fog: Extensive hill fog below 600 metres will result in major navigation difficulties at times.

No risk of Blizzards; Heavy snow; Storm force winds; Gales; Severe chill effect; Thunderstorms; Heavy persistent rain; Strong sunlight;

Weather summary and probability of precipitation for Monday

Dawn to 0900 Heavy Rain Heavy Rain 90% chance of precipitation
0900 to 1200 Light rain Light rain 70% chance of precipitation
1200 to 1500 Light rain showers Light rain showers 50% chance of precipitation
1500 to dusk Cloudy Cloudy 30% chance of precipitation

Detailed mountain weather forecast

Monday

Weather

Cloudy overnight with showers or longer periods of rain spreading from the south. During the morning it will become dry with sunny periods developing as the cloud lifts and breaks. However cloud will increase again during the afternoon with further showers possible.

Visibility

Very poor overnight with extensive fog. Improving during the morning to mainly good by early afternoon, reducing to moderate in any showers.

Hill fog

Overcast extensive hill fog above 250 metres at first slowly lifting and breaking during the morning to be ragged around 600 metres by midday.

Maximum winds above 400m

Easterly 35 mph

Temperature

Valleys: Plus 7 becoming 16 Celsius
700 m: Plus 10 Celsius
Freezing level: Well above the summit

Tuesday

Weather

Cloudy with extensive hill fog and showers or periods of locally heavy rain. The cloud base will lift only very slowly during Tuesday morning but scattered heavy or thundery showers are likely throughout the day.

Visibility

Very poor with fog overnight, improving slowly during the morning to be moderate to good by early afternoon.

Hill fog

Extensive above 250 metres at first. Lifting and breaking slowly but persisting over the highest ground.

Maximum winds above 400m

easterly 25 mph

Temperature

Valleys: Plus 7 becoming 17 Celsius
700 m: Plus 7 Celsius
Freezing level: Well above the summits.

Outlook

Wednesday

After a dry and bright start cloud will thicken from the west with a band of rain spreading in from late morning to give a few hours of wet weather. This should clear later in the afternoon with perhaps some late sunshine. Moderate or fresh south to southeasterly winds.

Thursday

Another day of sunny spells and scattered heavy showers with a risk of thunder. Winds will be generally light and visibility mostly good outside of showers.

Friday

Variable amounts of cloud, further showers but not as heavy or frequent as Thursday.


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