Yorkshire Dales mountain area forecast
Forecast issued: 0409 on Friday, 6 December 2013
Overview for Friday
Markedly less windy than Thursday, although pre-dawn gales possible. Fine and frosty to start, cloudier and less cold with a little snow late on.
Medium risk of Severe chill effect: Winds remain strong while the air is coldest. Easing later.
Medium risk of Persistent extensive hill fog: Milder air moving over cold ground is likely to lead to widespread blanket hill fog at 500m later.
Low risk of Heavy snow: Snow late in the day should be mainly light.
Low risk of Gales: There is a chance of early gale-force gusts, easing later.
No risk of Blizzards; Storm force winds; Thunderstorms; Heavy persistent rain; Strong sunlight;
Weather summary and probability of precipitation for Friday
|Dawn to 0900||Sunny||0% chance of precipitation|
|0900 to 1200||Sunny intervals||0% chance of precipitation|
|1200 to 1500||Cloudy||20% chance of precipitation|
|1500 to dusk||Light snow||40% chance of precipitation|
Detailed mountain weather forecast
Although less windy than Thursday, gale-force gusts are still possible pre-dawn. Otherwise a clear, crisp and cold start with a hard frost. Staying largely fine through the morning before clouding over into the afternoon, with a little snow possible to end the day. Hill fog will become extensive as milder air moves in later, with mistiness developing below this.
Starting good, becoming very good for a time before moderating later. Locally poor in snow showers.
Milder air moving over cold ground is likely to lead to widespread blanket hill fog at 500m later, with extensive mistiness below this.
Maximum winds above 400m
Northwesterly 40-45mph in showers, easing markedly later.
Valleys: Minus 3 becoming plus 2 Celsius.
700 m: Minus 4 becoming zero Celsius.
Freezing level: Rising from the surface to clear the peaks later.
Less cold than Friday, with the best of limited cloud breaks likely towards the east, perhaps giving an early frost. Otherwise rather cloudy throughout, with hill fog possible over the higher peaks, perhaps giving a little light rain and drizzle at times.
Moderate becoming good.
Broken hill fog around 500m.
Maximum winds above 400m
Valleys: Minus 1 becoming plus 7 Celsius.
700 m: Plus 3 Celsius.
Freezing level: Near the highest summits.
A similar day to Saturday, still a lot of cloud around, however a slightly greater chance of sunny spells as high pressure builds to the south. Moderate westerly winds.
With patchy rain having moved through overnight, perhaps a damp and rather cloudy start. Although the cloudy theme will generally persist, some sunny spells are still likely with light westerly winds.
Similar to previous days, although with a risk of slow to clear fog as southwesterly winds become light.