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Yorkshire Dales

Weather hazards over 300m on Wed 17 Sep 2014

High risk

Persistent extensive hill fog
Extensive above 200 to 300m to mid-morning, gradually lifting. Further hill fog in the evening.

Medium risk

No medium risks
none

Low risk

Strong sunlight
While the UV index will peak at moderate, low cloud and mist will limit lengthy exposure.

No risk

Blizzards
none
Heavy snow
none
Storm force winds
none
Gales
none
Severe chill effect
none
Thunderstorms
none
Heavy persistent rain
none

Wed 17 Sep 2014

Extensive hill fog, perhaps with drizzle, is expected into the morning, with low cloud sitting on the hill tops. By mid-afternoon, the cloud is expected to have lifted and broken up, especially in the west, with some sunny spells developing, although a few hill fog patches may continue to affect some eastern slopes. In the sunshine, it will feel warm in sheltered western areas, although a moderate breeze over the peaks will keep it cooler in more exposed locations. Hill fog is likely to become more extensive again in eastern areas towards midnight.

Time
0600 to 0900 0900 to 1200 1200 to 1500 1500 to 1800 1800 to 2100 2100 to 2400
Weather
Cloudy Cloudy Cloudy Sunny intervals Cloudy Cloudy
Precipitation probability
10% 10% 0% 0% 0% 10%

Visibility

Poor or very poor in mist and fog, becoming moderate or good during the afternoon.

Hill Fog

Broken to overcast above 200m to 300m in the early hours and at first during the day, lifting through the morning, with just patches above 600m for a time in the afternoon. Further broken or blanket above 300m by the end of the evening, especially in the east.

Max wind above 400m

Northeasterly 15mph.

Temperature

Valleys:
Plus 11 becoming plus 18 Celsius.
800m:
Plus 13 Celsius.
Freezing level:
Well above the peaks.

Recent Rainfall

Location:
Malham
Altitude:
375 m
Rainfall measured at:
0300 on Wed 17 Sep 2014
Last 24 hours:
0.0 mm
Last 48 hours:
0.8 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.

Issued at: 0353 on Wed 17 Sep 2014

Thu 18 Sep 2014

Extensive hill fog, with drizzle, is expected through the early hours and into the morning, with low cloud sitting on the hill tops. Again, the cloud will lift and break up during the morning, especially in the west, and it will feel warm in sunshine. However, there will be a chance of the odd heavy shower developing during the afternoon and evening. Low cloud and hill fog is likely to return towards the end of the evening.

Visibility

Poor or very poor in mist and hill fog, becoming moderate or good during the afternoon although poor in any heavy showers.

Hill Fog

Blanket above 200 to 300m in the early hours and at first during the day, lifting through the morning then mostly above the hills, but patches above 400m in heavy showers and more generally in the east in the evening.

Max wind above 400m

Easterly or Northeasterly 15mph.

Temperature

Valleys:
Plus 11 becoming plus 18 Celsius.
800m:
Plus 15 Celsius.
Freezing level:
Well above the peaks.

Issued at: 0353 on Wed 17 Sep 2014

Fri 19 Sep 2014

Similar conditions to preceding days, quite extensive hill fog to start, breaking, especially in the west, but with a chance of heavy showers, perhaps with thunder, during the afternoon. Further hill fog likely in the evening. Winds will continue to blow from an easterly or northeasterly direction, meaning the best of any sunshine is likely to the west of the park.

Issued at: 0353 on Wed 17 Sep 2014

Sat 20 Sep 2014

Again, extensive hill fog to start, breaking, especially in the west, with some afternoon sunny spells possible. Still a chance of a heavy, thundery shower, though.

Issued at: 0353 on Wed 17 Sep 2014

Sun 21 Sep 2014

Low cloud and fog to start, some at low levels, some at high levels. However, a better chance of sunny spells developing and probably staying dry. Winds will be light. A chilly start in places but feeling pleasantly warm in light winds and sunny spells.

Issued at: 0353 on Wed 17 Sep 2014