14 day UK: Changeable outlook

Issued Sunday 1st March 2015

Week 1

Cold start but much milder later.

Monday, Tuesday, Wednesday: A mix of sunshine and showers. The showers are expected to be heavy and wintry at times bringing a mix of rain, sleet and snow. Snow mostly in the north where significant accumulations are possible over higher ground. Farther south the showers could turn to snow at times especially at higher levels. Nighttime frosts mostly in sheltered northern locations.

Wednesday: Scattered showers becoming lighter with many places having a dry day with sunny spells. A widespread frost is expected to develop overnight in southern and central regions.

Thursday: Outbreaks of rain in the north spread south eastwards through the day but become lighter and patchier. The south eastern corner of England could remain dry. Temperatures close to average

Friday: Mostly dry in southern and central regions. Wet and windy across north western parts of the UK. Mild in the south but temperatures close to average in the north.

Saturday: Mostly dry in southern and central regions with sunny spells and variable amounts of cloud. Cloudier in the northern half of the UK with patchy outbreaks of rain. Very mild in the south.

Sunday: Dry in southern and central regions with sunny periods. Cloudier in the northern half of the UK but mostly dry. Very mild in the south with temperatures possibly reaching 16C (61F).

Forecast confidence is high on the general overview. 

 

 

Week 2

A mostly dry week.

A good deal of dry weather is expected through the week across much of the UK, but particularly southern and central regions. The north west may remain more changeable with a greater risk of rain at times.

Daytime temperatures probably falling back towards the average after a very mild start. Cloud cover is likely to be variable but where skies clear there could be an increasing risk of nighttime frosts returning.

Forecast confidence is moderate.

Overview

During the early part of the forecast period a cold and showery polar maritime air stream will cover the UK. Through the second half of the first week high pressure is forecast to build in from the west bringing a much milder south westerly flow.

High pressure probably remains over the UK during the second week. Disturbances from the Atlantic may keep things more changeable in the north west.

Global Forecast System (GFS) analysis

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