chrisbell-nottheweatherman

To be fair, Hammer isn't a Moderator, and he wasn't saying "don't post BBC forecasts in the regional threads" anyway. Anyway, dry and bright here now.

Snow has fallen here (large flakes at one point) but nothing has laid, so my prediction is still valid. Oddly, this, in itself, hasn't beaten last year - we did have a short flurry of wet snow back then.

Very unusual for this area forum, Paul.

I'm not claiming any great insight; it's just a feeling in my water. I'd certainly like to be proven wrong!

Even though I still expect to see no lying snow this side of December this year, I think it's unreasonable to state that there's nothing interesting in the weather ATM.

Sadly, I think my prediction of no lying snow for my area this winter is still on.

If I might take the liberty of quoting Tamara on the MOD thread (I think her advice is brilliant):

Matt, might I suggest you repeat that a few hundred times in the MOD thread today to stop the nonsense in there? As a result of checking through the last 3-4 pages over there, my "Ignore" list has nearly doubled in length (the schadenfreude-loving mildies who search for a sign of the Atlantic powering through at T1,000,000 were in that list already). I aim to have all the drama queens in that list by this autumn so I can enjoy the MOD thread next winter, reading only those posters, yourself included, who know what they're on about and who actually take a balanced viewpoint.

Typical of what happens in there when cold weather is forecast.

Any idea when my area (S. Norfolk) is likely to get the strongest gusts?

Pretty gusty out there now.

As usual, I haven't made things very clear. I'll have another try. Dew point is the temperature at which a parcel of air can no longer hold on to its moisture; if the temperature drops to that level, precipitation will result. Strictly speaking, it is the point at which the rate of condensation of water vapour outstrips that of evaporation. Colder air holds less water than warm air, and therefore, as temperature increases, the relative humidity decreases. Relative humidity, expressed as a percentage, is the ratio of the partial pressure of the water vapour in a given parcel of air set against the equilibrium pressure in that same parcel. Equilibrium pressure is basically the point at which the rate of condensation equals that of evaporation and the air cannot hold any more vapour. Combining these definitions of relative humidity and equilibrium pressure, it can be seen that the relative humidity is comparing how much water vapour the air contains with how much it could contain. What all this means this means is that, as the relative humidity increases, the gap between the actual temperature and dew point narrows as the air is getting closer to its equilibrium pressure - it's close to maximum saturation, and even a small drop in temperature will cause precipitation.

Dew point is the temperature at which a parcel of air can no longer hold on to its moisture; if the temperature drops to that level, precipitation will result. Strictly speaking, it is the point at which the rate of condensation of water vapour outstrips that of evaporation. Colder air holds less water than warm air, and therefore, as temperature increases, the relative humidity decreases (relative humidity, expressed as a percentage, is the ratio of the partial pressure of water vapour in a given parcel of air to the equilibrium pressure in that same parcel, i.e. the point at which the rate of condensation equals that of evaporation and the air cannot hold any more vapour). What this means is that, as the relative humidity increases, the gap between the actual temperature and dew point narrows.

Indeed. Not only that, at lunchtime yesterday, their forecast was that East Anglia would stay dry during daylight hours, when we'd already had drizzle.

Much the same here - a rather dreary afternoon.

Indeed, though I'd add (without sounding harsh) that if nasty weather affecting a British wedding was a potential worry, holding it in mid-January probably wasn't the best idea.

Thanks Matt - do you think there's going to be a problem with icy surfaces tonight? Also, can I make a request, please - if anyone sees that Iceni is on this thread, could you let her know that I PM'd her last night, please?

Thanks Matt.

I didn't realise Chelmsford was in the south-west, Matt.

Offtopic post i know - please bear with me. If there's little signal for anything cold, what is this chap banging on about? https://www.youtube.com/watch?v=GUbX4BLroF4

Any news for the third of the lows which is due to hit on Saturday? I'm well to the south of the worst-affected areas, but I have a hospital appointment on Saturday morning and was just wondering how windy my area may be by then?

Indeed.

That's better!

Indeed - this pattern is, AFAIK, fairly similar. Apologies to Mods for one-liner - as things are quieter here now, I thought a response to the question would be OK.

I've tried watching his videos, but what with his dodgy sound quality, propensity to gabble and heavy Brummie accent, I can't understand what he's saying. I'd love to be able to ask him to slow down a bit, but fear I'd risk him feeling hurt.