Rain & Hill Snow Today, More Rain & Severe Gales Tomorrow

11th February 2014 08:08

Rain & Hill Snow Today, More Rain & Severe Gales Tomorrow

After rather benign conditions for many on Monday, though we did see some snow first thing in Wales, the weather is taking a turn for the worse today, as we see the first of three low pressure systems rolling off the Atlantic over the next five days, bringing yet more wind and rain. All three weather systems could dump a further 40-70mm across Wales, much of southern England and NW Britain this week, so dire news for those already affected by flooding, as water levels are unlikely to recede for a while and may rise further. Not only will this extra rain be an issue, but Wednesday's deep low pressure system will likely bring damaging winds, with gusts of 70-80mph in places, which will likely cause disruption to travel and power supplies, damage to property, further coastal flooding and fallen trees.

Back to today, squally and locally heavy rain accompanied by a strong southerly wind will quickly move east this morning across all parts, falling as snow mainly above 200m across Wales, northern England and Scotland, but we have seen some snow at lower levels too across Scotland this morning. Some significant falls of snow are likely across Scotland and the far north of England before clearing this morning, so some hazardous conditions on the higher routes here. The rain and hill snow will last a few hours and the rain will be locally torrential in places, bringing 10-20mm widely, perhaps as much as 30mm across western hills this morning, before clearing eastern England early afternoon, though perhaps lingering across NE Scotland. Clearer, brighter but much colder conditions  already moving in across Ireland will follow the rain for the afternoon as winds veer westerly, with sleet and snow showers blowing in, mainly across the north and along western coasts, bringing further snow to northern hills and perhaps increasingly to lower levels across the north this evening. Temperatures reaching 4-5C in the north, 6-8C in the south.

Sleet and snow showers will continue across Northern Ireland, Scotland and northern England overnight into Wednesday, bringing further significant accumulations over the hills and perhaps slight accumulations at lower levels too. So a risk of icy patches developing where skies clear. Further south, showery rain is likely to spread eastwards across southern and central parts of England and Wales.

After a cold start, temperatures will quickly rise Wednesday morning, as southwesterly winds  strengthen ahead of a deepening area of intense low pressure moving northeast across Ireland and eventually northern Britain.  A spell of heavy rain and gales will sweep northeast across most areas during the day, before clearing the east coast in the evening, though rain and hill snow likely lingering across Scotland into the night. Another 10-20mm of rain is likely widely, with 20-30mm locally and over higher ground. Wind gusts of 60-70mph are possible inland across England and Wales, perhaps 70-80mph around southern and western coasts, so the potential for disruption to travel and power supplies along with a risk of more coastal flooding during high tides. Snow is likely again over the Scottish mountains, with a risk of blizzard conditions. So atrocious and hazardous conditions likely across many areas. Temperatures will reach 4-6C at best across the north, 7-9C across the south.

A brief respite on Thursday and the first half of Friday, so apart from some wintry showers across Scotland and rain showers around southern and western coasts, most places will be drier and brighter both days, with lighter winds. But the third low pressure system of the week will arrive from the southwest later on Friday, another deep depression, which will spread rain and strong winds across southern England during Friday afternoon, before wind and rain spreads north across much of England and Wales during the evening. 

Saturday looks likely to remain wet and windy across many areas, as the deep low moves northeast across northern England, with widespread gales wrapping around the low and severe gales around the coasts. Winds will veer northwesterly as the low exits into the North Sea, so it will turn colder from the north, with an increasing risk of hill snow across the north. Sunday, for now, promises to be a much drier and brighter day, once early rain clears the east.

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