Cock Mountain (County Down) weather

Headline:

Mainly dry, cold Wednesday with sunny spells. Showers in evening.

This Evening and Tonight:

The night will continue dry with clear periods. Light winds and clear periods will lead to a frosty night with the occasional mist or fog patch. Minimum temperature -2 °C.

Wednesday:

After a bright and frosty start much of the day will stay dry with sunny spells. Cloud will spread south during the afternoon with showers in north during the evening. Maximum temperature 5 °C.

Outlook for Thursday to Saturday:

Cloudy with showers becoming wintry towards the evening Thursday. Snow showers become frequent overnight into Friday but ease for a time from the afternoon. Further snow showers Saturday. Windy.

Cold northerly winds dominant across the UK in the first week of January. These will bring wintry showers (often of snow) to many coastlines (and areas just inland of these) that are exposed to onshore winds. Day-to-day changes in wind direction will change the places most exposed to the showers, but many inland locations across central and southern areas will remain mostly dry but cold - some more coherent bands of rain, sleet and snow working south at times. Into the second week of January slightly milder conditions will attempt to move in from the west, with a risk of further snow on the leading edge of these turning to rain. Colder regime more likely to the north with average to just below average in the south.

Whilst confidence in details is low, by the start of this period the transition back to westerly winds bringing Atlantic weather systems into the UK is expected to be complete, with temperatures most likely recovering to around or just below average. There is perhaps a weak signal for slowly evolving weather patterns to be more favoured than normal, such patterns increase the chances of frost and fog above normal by night.