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1. Amber warning of Wind
Issued at:
1621 on Tue 11 Feb 2014
Valid from:
1000 on Wed 12 Feb 2014
Valid to:
2350 on Wed 12 Feb 2014
A vigorous area of low pressure is expected to move northeastwards across northern parts of the UK later on Wednesday, clearing eastwards early on Thursday. This is likely to be accompanied by a swathe of southwesterly gales across many areas which may be severe in places. Winds will veer more westerly later on Wednesday.
A first peak in the winds is likely over southwest England around the middle of Wednesday but with the main swathe of even stronger and potentially damaging winds crossing parts of Wales then northern England later in the day.
The public should be prepared for the the risk of disruption to transport and possibly also power supplies. In addition, large waves are likely to affect some coasts.
This warning should be viewed in the broader context of the Yellow Wind warning.
The warning has been updated to adjust the impact matrix to cater for medium likelihood of high impacts for west and north Wales on Wednesday afternoon and early evening.
There remains some uncertainty regarding the exact track of the vigorous depression and hence the areas more likely to be affected by the worst of the winds. However, current ideas suggest that parts of western England, Wales and northern England will bear the brunt with gusts of 60-70 mph widely, and gusts of 80-90 mph in exposed parts of north and west Wales and perhaps northwest England.
Please monitor the website as this warning may be adjusted as new information becomes available.
2. Yellow warning of Snow
Issued at:
1200 on Tue 11 Feb 2014
Valid from:
1415 on Tue 11 Feb 2014
Valid to:
1000 on Wed 12 Feb 2014
Showers will turn increasingly to snow on Tuesday, even down to low levels, and will continue through Tuesday night. Snow showers will continue into Wednesday morning in the north. Accumulations of 2-5 cm are likely on ground above about 150-200 m with perhaps 10 cm or more above 300 m especially in the west of Scotland, Northern Ireland, northern England and Wales. On low ground, lying snow will tend to melt between showers by day but 1-3 cm may settle on Tuesday evening and night. Icy stretches will also form in the evening, these lasting well into Wednesday morning in the north.
The public should be aware of the risk of some travel disruption and difficult driving conditions. This is an update to the warning issued yesterday, to include more of Wales and central England.
Following the eastwards clearance of the frontal system on Tuesday, a cold and unstable westerly airstream is expected to follow across many parts of the UK which will persist through Tuesday night into early Wednesday. This will bring snow showers with accumulations in places.
3. Yellow warning of Rain
Issued at:
1218 on Tue 11 Feb 2014
Valid from:
0900 on Wed 12 Feb 2014
Valid to:
2100 on Wed 12 Feb 2014
A further spell of widespread rain, heavy in places, is likely to spread northeastwards across much of the UK on Wednesday clearing eastwards from southern areas on Wednesday evening. Following earlier heavy rainfall, the public should be aware of the potential for further flooding in places.
Gale or severe gale force winds are likely to be an added hazard in places (see separate warnings).
This is an update to the Alert first issued on Sunday.
Another Atlantic depression is expected to bring a spell of heavy rainfall and very strong winds to parts of the UK on Wednesday. Southern and western parts of England and Wales look most likely to see further heavy rainfall. Some 15-25 mm of rain are likely within the warning area with a risk of 40 mm on high ground of south Wales and southwest England - much of this within a 12 hour period. Falling soon after earlier widespread rainfall, the cumulative effects of these weather systems are likely to exacerbate the current flooding situation.
4. Yellow warning of Snow
Issued at:
1232 on Tue 11 Feb 2014
Valid from:
1000 on Wed 12 Feb 2014
Valid to:
2100 on Wed 12 Feb 2014
A band of rain, sleet and snow will push into Southern Scotland on Wednesday morning, spreading north to affect much of the mainland during the afternoon and evening. Accumulations of 10-15 cm are likely above around 300 m with 2-5 cm above around 100 m. Temporary accumulations of 1-2 cm are possible to low levels for a time on the leading edge. The snow will turn to rain at all levels across Southern Scotland and the Central Belt through Wednesday afternoon.
The public should be aware of the risk of some travel disruption and difficult driving conditions.
A vigorous area of low pressure is expected to move northeast across the UK during Wednesday. The leading edge of the precipitation associated with this system will engage the cold air already established across Scotland. This will allow snow to develop quite widely. However, as less cold air pushes into southern Scotland later, snow here will change to rain, with any lying snow thawing rapidly.
5. Yellow warning of Wind
Issued at:
1146 on Tue 11 Feb 2014
Valid from:
1000 on Wed 12 Feb 2014
Valid to:
0300 on Thu 13 Feb 2014
A vigorous area of low pressure is expected to move northeastwards across northern parts of the UK later on Wednesday, clearing eastwards early on Thursday. This is likely to be accompanied by a swathe of southwesterly gales across many areas which will be severe in places. Winds will veer more westerly later on Wednesday.
A first peak in the winds is likely over southwest England around the middle of Wednesday but with the main swathe of even stronger and potentially damaging winds crossing parts of Wales then northern England later in the day (see Amber warning).
The public should be prepared for the the risk of disruption to transport and possibly also power supplies. In addition, large waves are likely to affect some coasts.
This warning has been updated to include parts of Northern Ireland and southern Scotland.
There remains some uncertainty regarding the exact track of the vigorous depression and hence the areas more likely to be affected by the worst of the winds. However, current ideas suggest that parts of western England, Wales and northern England will bear the brunt with gusts of 60-70 mph widely, perhaps with gusts of 80-90 mph in exposed parts of north and west Wales and northwest England.
Please monitor the website as this warning may be adjusted as new information become available.
