While my recent posts have been focusing on the US with all the snow now settling into the Northeast, back here in the UK and we too have snow on the way with disruption likely during Sunday into Monday morning’s rushhour. The current cold pattern which has been pretty moderate over the past day or so will deepen into early next week as a southeast cutting low, not only brings snow but will pull colder air in from the east.
Let me break it down for you. A weather system sliding east across the Atlantic will slow as it approaches the UK and a low will develop near Ireland. In the meantime, a cold northerly upper flow will keep the cold air in place but it’s as the low develops and then cuts east, southeast across central and southern England, snow breaks out from the Midlands up through north Wales, northern England, Scotland and Northern Ireland. A SE to NW oriented frontA boundary separating two masses of air of different densities. will see heavy snow break out along it but in the south of England, precip is likely to fall as rain.
Winds of course blow anti-clockwise around lows and with the track of this system being southeastwards from Ireland towards southern England, winds will pick up from an easterly direction and this will draw colder continental air into the UK. This will help keep the air nice and cold with no chance of rain rather than snow.
Right now it appears like Sunday into Sunday night will see the worst of the snow which will be heavy and with a stiff and cold east wind, blowing and drifting will make for treacherous driving, especially up over higher, exposed routes.
Here’s the latest GFSGlobal Forecast System; a global numerical weather prediction system containing a global computer model and variational analysis run by the National Oceanic and Atmospheric Administration (NOAA). snow charts.
48 hrs (Sun)
66 hrs (Mon)
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