Ian Docwra
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A good place name for settling snow!
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Looks as if the cold ends on Sunday with extremely mild (12C) conditions from next week in the south. We've managed to miss the heaviest of the snow to the north, east and south of us! -10C is forecast tonight here under clear skies, so a potential 22C range from tonight to next Monday.
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However, as the wind shifts through E to SE it will be drier air and higher pressure so will kill any ppn.
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Sadly, it's probably too much to the N of E to get the heavy stuff there. We've just had a flurry but the main stream is east of us again. It went from a heavy E-W streamer last night to pivoting over us to the current NE streamer, but with it dying out for the period when it pivoted - i.e giving us nothing. Nature can be cruel!
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It's possible where significant snow still remains and with the wind falling much lighter. The night is predicted to be largely clear, giving rapid radiation cooling. London won't get that low, but rural areas, especially frost hollows, could see -10C. It was -16.7C in northern Scotland last night and could be around that there again tonight.
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The tie is between temperatures dropping as the sun sets (allowing the ground to cool a bit) and the energy for convective showers also dropping.
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Fun with Bruno, our Husky/American Bulldog cross, today.
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Right, can I order that version please?!
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Warm, wet ground just below the surface and possible ducts and drains beneath too. Add on a little solar warming (even through cloud) and it goes fast.
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Again, the very mild and very wet lead up to this has led to much ground snow loss, when a cold, frosty precursor would not have. Bear in mind that if all the snow that fell had accumulated (on frosty, dry ground) many more areas would have a significant depth. That's exactly what happened here on 24 January, when snow from the west settled on a hard frost - not a flake was wasted!
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My point was that the BBC's output isn't consistent within itself (i.e. lining up the text summaries and the hourly breakdowns) and neither is the MO's today. BTW, the BBC TV forecast this morning talked of streamers, too.
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The Met Office is doing what the BBC does - their SE regional text sumary talks of scattered snow showers in the east of the region overnight, while its forecast map shows a significant streamer NE to SW right across the middle of the region tonight/early tomorrow morning, with nothing to the east of that. Consistency, even if wrong, is far better than such randomness.
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These things happen elsewhere too - for example, look at lake effect snow in upstate New York, where some staggering falls tail off to barely a covering within a few tens of miles.
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Yes - we have this on a local flood-prone road - spray is thrown up and freezes.
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The sun is now about six weeks higher than its minimum in December and is starting to have a noticeable impact. Even in moderate cloud its radiation can melt snow in sub-zero air, whereas in December/early January it is too weak unless fully sunny. February snow in southern Britain is always likely to melt in any sunshine when it's powdery as it has more air/surface area to absorb warmth. A bit of thaw and re-freeze toughens it up a little although reduces the volume/depth.
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That is largely what made the 2018 'Beast' so remarkable, especially the last stage in mid-March, when we had sub-zero maxima for several days.
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Disappointed so far with the NW radar - it has failed to reflect reality quite often in this spell - it shows a continuous cover of light snow over our area now and we actually have partly blue skies widely and nothing falling at all.
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Ther tabloids generally hype the weather hugely! They are not known for their worship of facts.
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Yes, and the fact that the water has been relatively warm recently after what has been a mild winter. We have two large ponds and they are only slushilly(!)-covered. With still, clear nights they should freeze easily. A calm, clear night has a steep temperature gradient from the ground/water up, whereas the wind both keeps the water moving and mixes up the air so that the water surface-level will be exposed to, say, -2C whereas it might be -8C in still air with the steeper gradient.
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I suspect most of the white stuff tonight will be frost. Clear spells and a lighter wind could lead to some very low temperatures.
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The alien artefact off Thanet must have woken up and destroyed everything! Actually I have noticed there are several such anomalies in that area, but the one off Thanet's east coast is by far the largest.
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Met Office reports heavy rain at Heathrow, where NW radar shows only snow everywhere. Mind you they've been showing rain at Aviemore very often this week, which has clearly been nonsense. I find it odd that they can get reporting actual conditions, rather than forecasts, so wrong.
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Still 400 miles away over warm water, though. Sorry, but I can't see it getting anywhere near Sussex.
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Brighter spells here and no snow falling at present. +0.1C. Big visible difference between parts of our garden just now - one area is sandy (free-draining), with full snow cover; the other is loamy and wet, with slushy stuff. Looking both ways from the same spot.
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You really need to amend your profile to include your location if you are going to refer to "here" - no-one can tell where that is.
