Issued at: 11:40 on Thursday 17 January 2013
Valid from: 01:00 on Friday 18 January 2013
Valid to: 23:55 on Friday 18 January 2013
A band of heavy sleet and snow will spread northeastwards across Wales and the southwestern half of England, with rain turning increasingly to snow across Northern Ireland through Friday initially over high ground, but later to low levels. Winds will strengthen, leading to drifting of lying snow, whilst blizzards are likely over high ground. The snow will turn to rain and sleet across southwest England through the day.
Meanwhile, snow showers affecting North Sea coastal counties of Scotland and England will move further inland during Friday.
Accumulations of snow will be very variable in the east, with 2-5 cm in places and possibly 10 cm above 200 metres, whilst heavier falls are expected across southern, central and western areas, with 10-15 cm or more possible in some areas. This warning should be viewed alongside other warnings issued for Friday.
The public should be aware of the risk of significant travel disruption.