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1. Amber warning of Wind
Issued at:
1059 on Wed 18 Dec 2013
Valid from:
2100 on Wed 18 Dec 2013
Valid to:
0800 on Thu 19 Dec 2013
Severe gale force winds will affect parts of Northern Ireland, western, central and northern Scotland. A swathe of storm force winds will progress northwards with time, perhaps clipping the far north of Northern Ireland before moving north to affect the western Isles and skirting western and northwestern fringes of mainland Scotland.
Gusts of 70 to 80 mph are expected within the Amber warning area, and to around 90 mph in some of the more exposed locations in western Scotland and the Western Isles. Such winds will lead to very large waves with some coastal over-topping likely. Some heavy rain is also expected. The rain and the strongest winds will clear early on Thursday, giving way to blustery and wintry showers.
The public should be prepared for disruption to transport and possibly power supplies.
A rapidly deepening area of low pressure will pass close to northwest UK later on Wednesday and during the first part of Thursday. There is still some uncertainty about the exact track of the swathe of strongest winds and peak gusts, but in combination with heavy rain and some coastal flooding, the storm has the potential to bring some significant disruption.
2. Yellow warning of Wind
Issued at:
1046 on Wed 18 Dec 2013
Valid from:
1600 on Wed 18 Dec 2013
Valid to:
1100 on Thu 19 Dec 2013
Severe gale force winds will affect parts of Northern Ireland and Scotland. The swathe of strongest winds will progress northwards with time, affecting Northern Ireland during Wednesday evening, then progressing across affected parts of Scotland, clearing Shetland late on Thursday morning.
Gusts of 60 to 70 mph are expected in many areas, especially around exposed coasts, where 80 mph gusts seem likely in places. The wind will lead to large waves with some coastal over-topping possible. Some heavy rain is also expected. The rain and the strongest winds will clear from the south during Thursday morning, giving way to blustery and wintry showers.
The public should be aware of the potential for disruption, particularly to transport.
A rapidly deepening area of low pressure will pass close to northwest UK later on Wednesday and during the first part of Thursday. There is still some uncertainty about the exact track of the swathe of strongest winds and peak gusts, but in combination with heavy rain and some coastal flooding, the storm has the have potential to bring some disruption.
3. Yellow warning of Snow
Issued at:
1203 on Wed 18 Dec 2013
Valid from:
0600 on Thu 19 Dec 2013
Valid to:
0900 on Fri 20 Dec 2013
Heavy showers, likely a mix of sleet and hail on coasts and snow inland, will push in on strong to gale force westerly winds from early on Thursday morning through to early Friday morning. These showers will be most frequent across Argyll the Trossachs western Tayside and Highland, with accumulations of 10-20 cm possible over higher ground and with strong winds some drifting is likely along with blizzard conditions at times. At lower levels 5 cm of snow is possible in places. With these showers there is also the potential for icy stretches to form on the roads. Some ice and local snow accumulations are likely in other areas of Scotland especially later Thursday and into Thursday night.
The public should be aware of potential minor disruption due to the snow and ice.
Following a low pressure system on Wednesday cold air will be pulled into Scotland from the west. Frequent showers will feed into Scotland on strong to gale force westerly winds. These showers will continue through Thursday and Thursday night, before dying out from the west on Friday morning ahead of a new low pressure system developing in the Atlantic
