Met Office: Eryri: latest visual satellite

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Sefyllfa cyffredinol Dydd Sadwrn

Cloudy and wet at first, becoming drier and brighter but also windier later.

Peryglon	Risgiau	Eglurhad
Stormydd eira	No Risk
Eira trwm	No Risk
Gwyntoedd nerth storom	No Risk
Tymhestloedd	Medium	Winds may gust to 50mph at times during the day, most likely in the afternoon.
Effaith oeri difrifol	Low	Feeling cold around the summits in the mid to late afternoon as winds strengthen.
Niwl hirbarhaol ac eang dros y bryniau	High	Hill fog likely above 300 metres in the morning, gradually lifting and breaking in the afternoon.
Stormydd o daranau	No Risk
Glaw trwm di-baid	High	Heavy rain is likely from dawn until midday.

Peryglon

Risgiau

Eglurhad

Stormydd eira

No Risk

Eira trwm

No Risk

Gwyntoedd nerth storom

No Risk

Tymhestloedd

Medium

Winds may gust to 50mph at times during the day, most likely in the afternoon.

Effaith oeri difrifol

Low

Feeling cold around the summits in the mid to late afternoon as winds strengthen.

Niwl hirbarhaol ac eang dros y bryniau

High

Hill fog likely above 300 metres in the morning, gradually lifting and breaking in the afternoon.

Stormydd o daranau

No Risk

Glaw trwm di-baid

High

Heavy rain is likely from dawn until midday.

Crynodeb a thebygolrwydd gwlybaniaeth Dydd Sadwrn
O'r Wawr hyd 0900	0900 hyd 1200	1200 hyd 1500	1500 hyd Machlud
Heavy Rain	Heavy Rain	Light rain	Light rain
100%	>90%	70%	40%

Crynodeb a thebygolrwydd gwlybaniaeth Dydd Sadwrn

O'r Wawr hyd 0900

0900 hyd 1200

1200 hyd 1500

1500 hyd Machlud

Heavy Rain

Light rain

100%

>90%

70%

40%

Rhagolygon y tywydd manwl ar gyfer y mynyddoedd: Eryri

Dydd Sadwrn
Dydd Sul
Rhagolygon

Dydd Sadwrn

Tywydd

Overcast with heavy rain at first and extensive hill fog. Rain continues for the rest of the morning but eases by the afternoon, with drier and brighter weather moving in from the west before the end of the day.

Gwelededd

Generally poor at first, and less than 200 metres in hill fog. Becoming good during the afternoon.

Niwl dros y bryniau

Extensive hill fog above 300 metres will persist throughout the morning. It will begin to lift and break in the afternoon with only occasional hill fog at around 600 metres likely by the end of the day.

Gwyntoedd uchaf uwch ben 500m

Southwesterly 25-30mph becoming northerly 30-40mph gusting 50mph at times.

Tymheredd

Dyffrynnoedd	Plus 8 Celsius.
900 m	Plus 6 Celsius at first, falling to plus 1 Celsius in the afternoon.
Lefel rhewi	Above summits.

Dydd Sul

Tywydd

Dry at first on Sunday with light winds and some sunny periods. It gradually becomes cloudier during the morning with outbreaks of rain likely in the afternoon and early evening. This rain should stay quite light though and some places could have a mainly dry day.

Gwelededd

Good or very good but falling to poor in afternoon rain and to less than 200 metres in hill fog.

Niwl dros y bryniau

Occasional patches around 800 metres, becoming more extensive and descending to 500 metres in afternoon rain.

Gwyntoedd uchaf uwch ben 500m

Westerly 15-20mph becoming southwesterly 30-40mph.

Tymheredd

Dyffrynnoedd	Plus 5 Celsius increasing to plus 7 Celsius.
900 m	Plus 2 Celsius
Lefel rhewi	Above summits.

Rhagolygon

Dydd Llun

Remaining unsettled with strong winds gusting to around gale force at times. Rain is likely to be heavy and persistent and there is likely to be extensive hill fog. The freezing level may just touch the summits at some point during the day.

Dydd Mawrth

A respite from the unsettled weather likely on Tuesday, with clear and dry conditions expected. It will be rather windy at first with a risk of gale force gusts around the summits, but should become calmer during the day. The freezing level should remain around the summits.

Dydd Mercher

A return to the wet and windy weather on Wednesday, with occasional rain spreading from the west, possibly becoming heavier and more persistent by the end of the day. It will become windy too with gales likely around the summits.