Grib Nantlle (Nantlle Ridge) Y Garn (Gwynedd) weather

Headline:

Blustery showers on Monday, mainly dry on Tuesday.

This Evening and Tonight:

Often wet and showery overnight with occasionally heavy showers. Longer spells of rain may develop in places with isolated thunderstorms in the west. Snow on mountain tops. Feeling rather cold with occasionally strong westerly winds but staying largely frost-free. Minimum temperature 2 °C.

Monday:

A changeable day consisting of often cloudy skies, brief sunny intervals and occasional showers. These heavy with hail in places and wintry over higher ground. Blustery and feeling rather cold. Maximum temperature 8 °C.

Outlook for Tuesday to Thursday:

Settled at first with some sunshine. Wednesday may turn wetter in southern counties later with hill snow possible, easing on Thursday. Rather cold with ice and frost possible overnight.

Showers or longer spells of rain, as well as occasional strong winds, are most likely at first as Atlantic low pressure systems dominate in the vicinity of the UK. Some heavy rain is likely in places, with some snow probable at times, mainly on high ground in the north. Temperatures varying from around, or a little above, average especially in the south to cold at times, mainly in the north. Although unsettled weather is likely to dominate at first, there will be some drier interludes between weather systems. These drier interludes will become increasingly likely and perhaps more prolonged through the period.

Confidence in the dominant weather patterns during this period is low. There are signals for both periods of unsettled conditions, bringing a risk of heavy rain and possibly strong winds, and periods of drier, more settled weather, which may mean slightly colder conditions. The more settled pattern is looking slightly more probable early in this period, with more unsettled conditions currently looking slightly more likely towards the end.