Hazards
Forecast for Thurs 17 and Fri 18th May
Blizzards: No Risk
Heavy snow: Low risk – Sleet and snow possible over the
highest summits.
Storm force winds: No Risk
Gales: No Risk
Severe chill effect: No Risk
Persistent extensive hill fog: High risk – Extensive
around 700m with patches to 300m.
Thunderstorms: No Risk
Heavy persistent rain: Low risk – Most of the rain light
and patchy.
Strong sunlight: No Risk
Overview for Thursday
A cloudy day with outbreaks of mainly light rain with
sleet and snow over the summits. Light to moderate winds.
Forecast for Thursday
Weather: Mostly cloudy with outbreaks of rain, although a
little brightness possible at first. Much of the rain
will be light with extensive hill fog, sleet and snow
expected above 750m.
Visibility: Good becoming Moderate, occasionally poor
Hill Fog: Extensive around 700m leading to navigational
difficulties at height with patches to 300m.
Maximum winds above 500m: Southwest turning Southeast 5
to 15mph.
Temperature:
Valleys/Low level: Plus 6 to 10 Celsius.
At 900m: Plus 1 or 2 Celsius
Freezing level: Around 1000m
Weather and Chance of Precipitation:
Dawn – 0900: Cloudy. 40% chance of rain
0900 – 1200: Light rain. 70% chance of rain
1200 – 1500: Light rain. 70% chance of rain
1500 – Dusk: Light rain. 70% chance of rain
Forecast for Friday
Weather: Mostly cloudy with outbreaks of rain, occasional
heavy over the eastern fells with sleet and snow possible
over the highest summits.
Visibility: Moderate or good, but poor at times in the
eastern fells.
Hill Fog: Extensive around 700m, but occasional or
patches to 300m, mainly in the eastern fells.
Maximum winds above 500m: East or Northeast at 20 to
30mph, gusts to 50mph over ridges and summits with a
significant wind chill.
Temperature:
Valleys/Low level: Plus 5 to 10 Celsius
At 900m: Plus 2 Celsius
Freezing level: Around 1200m
