- Southwesterly winds will mean 50-55mph through much of the day, gusting to 70mph.
- Storm force winds
- Risk of gusts above 70mph throughout much of the day in southwesterly winds.
- Severe chill effect
- Strong winds and precipitation will cause a chill effect at altitude.
- Persistent extensive hill fog
- Hill fog at 400m will persist through much of the morning in association with a band of rain.
- Heavy persistent rain
- A band of rain, heavy at times, will pass over the park through the morning.
- No low risks
- Heavy snow
- Strong sunlight
A band of precipitation will arrive from the southwest in the early morning, falling as snow at first over the peaks. This band will contain some heavier bursts, most likely to affect the south of the park. After the rain clears the park in the late morning, conditions will be cloudy, especially on southwest-facing slopes, perhaps with some light rain or drizzle.
|0000 to 0300||0300 to 0600||0600 to 0900||0900 to 1200||1200 to 1500||1500 to 1800||1800 to 2100||2100 to 2400|
|Partly cloudy night||Light rain||Heavy rain||Light rain||Drizzle||Drizzle||Cloudy||Cloudy|
Visibility will be moderate in the early rain, becoming poor in the snow or heavier bursts of rain. After the rain has passed however, the visibility will be moderate to good, with best conditions in the northeast of the park.
Persistent hill fog at 400m and above expected in association with the rain in the morning, with a risk of isolated patches down to 200m in heavier spells of rain. Becoming more patchy in the afternoon and mainly confined southwest-facing slopes.
Max wind above 500m
Initially southeasterly at 20mph gusting 30mph. Winds will become southwesterly 45-50mph, gusting 70mph from the early morning onwards.
- Minimum temperature will be plus 4 Celsius, rising to plus 12 Celsius during the day.
- Minimum temperature will be minus 2 Celsius, rising to plus 7 Celsius during the day.
- Freezing level:
- Initially at 700m in the early morning, the freezing level will rapidly rise above the summits in the morning.
A cloudy, drizzly start before a band of rain slowly crosses the park from the northwest, clearing by the evening. Strong, possibly storm force, southwesterly winds in the morning, becoming northwesterly and lighter through the afternoon and evening.
Visibility will be moderate in the drizzle and rain, improving to good after the band of rain moves southeast across the park.
Periods of hill fog expected at 400m and above in association with the rain through the morning, clearing gradually through the afternoon, with the worst conditions in the south of the park.
Max wind above 500m
Winds will be initially 55mph gusting 75mph, and will gradually turn northwesterly, easing through the afternoon to 15mph gusting 25mph.
- Minimum temperature will be plus 6 degrees, rising to plus 11 Celsius in the day.
- Minimum temperature will be plus 4 degrees, rising to plus 7 Celsius in the day, before falling again to zero overnight.
- Freezing level:
- Freezing level will be above the summits, lowering to just above summits overnight.
Parts of the park may continue to see rain, perhaps with some sleet or snow on higher ground, before a drier and brighter spell in the afternoon. Freezing levels will fall to around 500m in the morning. Winds will be strong and initially northerly or northeasterly, turning to southwesterly later.
Some parts may see a shower through the day, with a band of rain approaching overnight and into Saturday. Freezing level rising above summits in the early morning. Winds will be strong and southwesterly, with a risk of gale-strength gusts.
Early band of rain clearing through the day with showers possible later. Freezing level will fall to 400-700m through the day. Winds likely to be strong and southwesterly through the day.
Issued at: 1644 on Mon 30 Nov 2015