Advanced weather forecasting maps suggest a blizzard could bring heavy snow across the UK on Valentine's Day and on Sunday, with several inches expected in places

A massive storm looks set to bring snow to several cities this weekend, starting on Valentine's Day.

Advanced weather modelling maps show snow first hitting Northern Ireland and parts of northern Scotland in the evening on Saturday ( Valentine's Day ). Ireland could also see heavy snow at around 9pm.

The GFS weather model suggests snow will then drift eastwards to engulf almost every inch of England , Wales and Scotland. Maps for around 3am on Sunday show snow falling from the south coast of England right up to the far north of Scotland.

Major cities including Birmingham , Manchester , Liverpool, Newcastle, Edinburgh and Glasgow appear to be in the firing line. Where flurries are most intense over hills, the data suggests snow could fall at a staggering rate of around four inches per hour.

At around 6am, the maps show snow will have reached London as it continues drifting eastward, also falling over East Anglia and parts of Yorkshire. Most of the country will see snow falling at some point this weekend, the maps suggest.

Snow depth charts show 162cm (63 inches) of snow could be settled on hills in northern Scotland by Sunday morning. Southern Scotland could see 12cm (five inches), with 8cm (three inches) coming over hills in northern England. The Midlands and regions further south will likely only see 1cm-2cm.

The Met Office also suggests snow could return to the UK soon. In its forecast for Thursday to Saturday, the national weather agency suggests conditions will turn colder on Friday "with a chance of snow showers, particularly in the north".

Its forecast for February 15 to 24 states: "Showers or longer spells of rain are expected as Atlantic low pressure systems dominate in the vicinity of the UK.

"Some heavy rain is likely in places, probably focussed on western hills, with some snow at times in the north, mainly on high ground. Strong winds are possible at times, especially around coasts. Temperatures will probably be near normal. Later in the period, there is a chance that drier, more settled conditions may begin to develop."

BBC Weather also suggests more snow could come this week, over hills tomorrow, Thursday and on Sunday. The BBC forecast states: "Wednesday and Thursday will stay unsettled, with bands of rain or showers. Higher elevations in Scotland will have snow showers, and as colder air starts to come southwards, some snow or sleet should develop over the hills and mountains of Northern Ireland, Wales and northern England by late Thursday.

"As a front clears southwards there could even be some wintriness over the hills of the Midlands and southern England temporarily, while sleet and snow showers blow across windward coasts elsewhere.

"Most areas should become drier and clearer by Saturday, with sharp frosts in places. However, a new frontal system from the Atlantic should start to bring milder air and rain on Sunday, although preceded by sleet and snow over higher ground, mainly in the northern half of the UK."

最新天气预报图显示，一场暴风雪可能在情人节及周日席卷英国全境，部分地区预计将出现数英寸厚的降雪。

一场强风暴预计将在本周末为多座城市带来降雪，且恰逢情人节当天开始。

高级气象模型图显示，周六（情人节）晚间，降雪将首先袭击北爱尔兰及苏格兰北部部分地区。爱尔兰也可能在晚上9点左右迎来大雪。

全球预报系统（GFS）气象模型显示，降雪将向东移动，逐渐覆盖英格兰、威尔士和苏格兰的几乎每一寸土地。周日凌晨3时左右的天气图显示，从英格兰南海岸直至苏格兰最北端都将出现降雪。

包括伯明翰、曼彻斯特、利物浦、纽卡斯尔、爱丁堡和格拉斯哥在内的主要城市似乎首当其冲。数据显示，在山区降雪最猛烈的地方，每小时积雪量可能达到惊人的4英寸。

气象图显示，大约早上6点，随着降雪带持续东移，伦敦将迎来降雪，东安格利亚和约克郡部分地区也将出现降雪。图示表明，本周末英国大部分地区将在某个时段迎来降雪天气。

积雪深度图表显示，截至周日早晨，苏格兰北部山区的积雪可能达到162厘米（63英寸）。苏格兰南部预计将有12厘米（5英寸）降雪，而英格兰北部山区的降雪量约为8厘米（3英寸）。英格兰中部及更南部的地区可能仅有1至2厘米的微量积雪。

英国气象局还表示，该国可能很快会再次迎来降雪。在该机构发布的周四至周六天气预报中，国家气象部门指出周五天气将转冷，“部分地区可能有阵雪，尤其是北部地区”。

其针对2月15日至24日的天气预报显示：“由于大西洋低压系统持续影响英国周边地区，预计将出现阵雨或持续性降雨。”

部分地区可能出现强降雨，西部山区尤为集中，北部高海拔地带偶有降雪。沿海区域或不时出现大风天气。气温预计接近常年同期水平。后期或将逐渐转为干燥稳定的天气。

英国广播公司天气预报显示，本周降雪可能增多，明日（周三）、周四及周日山区将出现降雪。预报称："周三和周四天气仍不稳定，将出现带状降雨或阵雨。苏格兰高海拔地区将有雪阵，随着冷空气南下，北爱尔兰、威尔士及英格兰北部山区预计在周四晚间出现降雪或雨夹雪。"

随着锋面向南移动，英格兰中部和南部山区或将短暂出现寒冬天气，而其他地区的向风海岸则将迎来雨夹雪和阵雪。

到周六时，大部分地区将变得更为干燥晴朗，局部可能出现严重霜冻。然而，来自大西洋的新锋面系统将于周日开始带来较温和的空气和降雨，不过在此之前，英国北部高海拔地区将先经历雨夹雪和降雪天气。