Dolgellau (Gwynedd) weather

Headline:

Unsettled with further spells of rain.

Today:

A murky start in the east with low cloud and drizzle lingering, however, brighter in the west with remnant fog and ice patches clearing readily. Cloudy at times through the afternoon, with occasional showers, though some brighter breaks remain possible. Maximum temperature 8 °C.

Tonight:

Turning increasingly cloudy from the south through the evening as a rain back pushes northwards overnight, bringing heavy and prolonged outbreaks at times, accompanied by strengthening winds. Frost patches possible. Minimum temperature 3 °C.

Tuesday:

A dull and damp day as a rain band continues to push northwards, bringing further low cloud and heavy downpours. Strong winds persist in coastal regions and over hills. Maximum temperature 7 °C.

Outlook for Wednesday to Friday:

Wednesday promises a bright and drier day, though low cloud may form overnight. Turning unsettled again from Thursday with further bands of rain. Breezy at times. Turning chillier.

Frontal systems over the Atlantic, steered by a south-shifted jet stream, are likely to approach the UK at times, but tending to stall as they encounter a blocking area of high pressure to the north and northeast. This will result in further spells of rain at times, falling in areas already sensitive to flooding. As these bands of rain spread northwards, some snow will be possible in northern England and Scotland, mainly over higher ground, as they encounter colder air. A subtle shift southwards of these areas of low pressure is anticipated during the second week of February, which may allow a greater chance of colder air to spread across larger parts of the UK, including the south, bringing an increased risk of wintry hazards for a time.

Whilst confidence is lower through this period, a south-shifted jet stream is likely to persist for much of the time, steering areas of low pressure towards and south of the UK. This is likely to bring further spells of wet and windy weather, with rain most frequent in the south and west, and perhaps also eastern Scotland, with the driest conditions, relative to normal, in northwest Scotland. Some hill snow will be possible at times as the wet weather encounters colder air across northern parts of the UK. Temperatures for the period as a whole will likely be close to average for most parts, but perhaps a little below in the northeast.