AMBER WARNING - ICE (Sat 10am - Sun 6am)
Northern England and southern Scotland
Freezing rain is expected to result in the rapid development of widespread ice, with very dangerous travelling conditions likely.
What to expect:
Injuries from slips and falls and danger to life on icy surfaces are likely
Black ice may form quickly affecting bus, train and air travel
Dangerous driving conditions are likely leading to road traffic collisions, road closures and longer journey times
Pavements and cycle paths likely to become instantly impassable because of the sudden formation of black ice
Pavements and cycle paths likely to become instantly impassable because of the sudden formation of black ice
Power and other services, such as telephone and mobile phone coverage, likely to be interrupted or cut
Heavy freezing rain is expected to develop during Saturday. This will result in the rapid formation of widespread ice on roads, pavements, trees and other structures. Freezing rain is rare in the United Kingdom but when it does occur the impacts can be very severe. This is due to the fact that it can form very quickly, it can be difficult to see and is incredibly slippery. Some sleet and snow is possible over the very highest ground and the freezing rain may also be followed by a spell of sleet and snow as the precipitation clears from the west. The freezing rain and sleet and snow will be accompanied by strong southeasterly winds which will pose an additional hazard to travel, in particular over high ground.
AMBER WARNING - SNOW (Sat 9am - Sun 8am)
Scottish Highlands
Heavy snow and blizzards bringing disruption to travel and infrastructure.
What to expect:
Travel delays on roads are likely, stranding some vehicles and passengers
Some delays and cancellations to rail travel are likely
There is a good chance that some rural communities could become cut off
Power cuts are likely and other services, such as mobile phone coverage, may be affected
A period of prolonged and heavy snow is expected to develop through Saturday morning, before clearing from the west through Sunday morning. 5-10 cm of snow is likely widely across the area, whilst some areas could see 20 cm, perhaps as much as 40cm over higher ground. Strong south-esaterly winds will lead to temporary blizzard conditions as well as drifting of lying snow.
YELLOW WARNING - RAIN & WIND (Sat 6am - Sat 6pm)
Northern Ireland and South West England
Heavy rain and strong winds across parts of Northern Ireland , south-west England and south Wales.
What to expect:
Spray and flooding on roads probably making journey times longer
Flooding of a few homes and business is possible
Delays for high-sided vehicles on exposed routes and bridges likely
Some short term loss of power and other services is possible
Some festive events may be affected by poor conditions.
Heavy rain and gales will affect parts of Northern Ireland and southwestern areas of the UK on Saturday. The wettest areas could see 30 to 50 mm of rain in 6 to 12 hours, while winds could gust to between 50 and 60 mph, especially in exposed coastal areas. The combination of these factors on a busy shopping weekend, may add to potential disruption.
YELLOW WARNING - SNOW & ICE (Sat 9am - Sun 9am)
Scotland and most of England (down to Bedfordshire)
Periods of freezing rain, with snow in Scotland later, leading to some dangerous travelling conditions.
What to expect:
Possible travel delays on roads stranding some vehicles and passengers
Possible delays or cancellations to rail and air travel
Some rural communities could become cut off
Power cuts may occur and other services, such as mobile phone coverage, may be affected
A chance of injuries from slips and falls on icy surfaces
Bus and train services may be delayed or cancelled, with some road closures and longer journey times possible
Untreated pavements and cycle paths might be impassable because of black ice
Freezing rain is expected to develop during Saturday, lasting into the early hours of Sunday. This may result in the formation of ice on roads, pavements, trees and other structures. Freezing rain is rare in the United Kingdom, but when it does occur impacts can be severe. This is due to the fact that it can form very quickly, it can be difficult to see, and is incredibly slippery. Freezing rain is likely to change to snow before it dies out across parts of Scotland, bringing some accumulations of 2-5 cm. The freezing rain and snow will be accompanied by strong southeasterly winds which will pose an additional hazard to travel, in particualr over high ground.
YELLOW WIND WARNING (Sat 12pm - Sun 6am)
Scottish Northern Isles
Severe gales expected over the Northern Isles and parts of Caithness.
What to expect:
Some delays to road, rail, air and ferry transport expected
Some short term loss of power and other services
Coastal routes, sea fronts and coastal communities affected by spray and/or large waves
A spell of very windy weather is expected over the Northern Isles and parts of Caithness on Saturday afternoon and overnight into Sunday. Southeasterly winds will be around 50mph with gusts widely 60mph perhaps 70mph at times.
Source :https://www.dailymail.co.uk/news/article-6498657/Storm-Deirdre-strikes-Freezing-rain-snow-70mph-severe-gales-set-batter-Britain.html
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