Paul

Post your reports of snow/sleet/hail here.... Edited by Du Snow: Anything other than snow reports will be deleted and placed in the appropriate forum. Thankyou

Only just noticed this, but totally agree Mr CS, TWS and Du Snow. We need to keep this area only for reports, theres plenty of other places to discuss other things on the forum!! As the winter draws closer and reports of snow become more regular (we hope!), then we will have a thread for each day so that things are easier to find...

Here in Crawley, the heavy rain that the Met Office gave a severe warning for, didn't materialise (well there's a suprise :roll: ), and all we had last night was drizzle for a while. It is now 7c, misty/foggy.

Originally posted by Osborne One-Nil Location: Appleby in Westmorland, Cumbria Posted: 22 Oct 2003 08:31 am -------------------------------------------------------------------------------- Well, last night it eventually dipped to -6.1C after only reaching 5.4C during the day. Currently -2.1C and freezing (I assume) fog with a visibility of around 100m. Not a puff of wind. _________________ The Proper North - 54.5N, 2.5W, 690ft above sea-level

Currently 5c here in Crawley, cloud cover spreading in, heavy rain aparently on the way. I think I may stay up to see it - I've forgotten what it looks like!

Into day three of our tell us what the weather's doing week, please post your weather reports here!

Slight frost overnight, temp now 11c, mostly sunny. Winds lighter than yesterday but still very cold feel.

Posted by RGoodman, from Milton Keynes, Bucks Cold Frosty start to the day. Temperature hovering between 0 - 1 Deg C. Blue skies and sunshine !!

Day two of our tell us what the weathers doing week. Please post your reports for Tuesday here!

Cloud cover has pretty much gone now, it's mostly clear. Still a fresh northerly wind making it feel around 0c, actual temperature is 12c.

Posted by Anton in Glasgow @ 12.49 - 20/10 an unforcast light snowishy hail shower just past by i so wasn't expecting that here in glasgow the jocks seem to be geting a fare share of snow it was on the regional news this mornin showing the first snow fall up north in the highlands

Hello all Its partly cloudy here at the moment, with cloudcover increasing, temp 12c, winds are fresh northerly, making it feeling very cold! Should see some showers within a couple of hours...

Reports posted by Stu_London: London W1 - 0430 hrs High Cloud Moderate Breeze - appears to be coming from the NE Temperature (at a guess) - 7-8C Dark! London W1 - 0620hrs Patchy Cloud Cover Breeze Fallen Light Temp 6-7C Still dark _________________ Stu London

Please post your weather conditions here for Monday 20th October, please remember a maximum of one report an hour per person will be entered into the draw to win the holiday!

I know this is cheating a bit, as really I should only post when I see snow where I am but Click here to see some of the highest peaks in the UK on webcams - where you can see the first snow of this spell has fallen on the 'gorms.

Please post your snow or wintry precipitation reports in here, please don't post fake reports, as we will try and verify all reports and any we can't verify will be deleted! Heres hoping there are quite a few reports in here over the coming few days

Cheers for doing this mate, I was thinking of doing this earlier today but just didn't have the time http://nwstatic.co.uk/forum/public/style_emoticons//laugh.gif

Lake District - Skiddaw Lake District - Place Fell Wales - Snowdon Wales - Snowdon summit from Elidir Fach Scotland - Ben Nevis Scotland - Cairngorm basestation (655 metres approx) Scotland - Buachaille Etive Mhor, Rannoch Moor Scotland - Cairngorm Ptarmigan Restaurant (1097m)

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A dam line is basically the height that you would have to go up to before the pressure falls to 500hPa. From a typical 500hPa chart, the best way to work out the 1000-500 thickness is: (1000-SLP) + 500hPa height ...where: SLP - Sea Level Pressure And the 500hPa height can be found by using the scale on the right hand side of the chart. -------------------------------------------------------------------------------- Basically, all we need to worry about are the actual figures: the main figures to look for in the UK are: 528DAM and below for an increasing chance of seeing snowfall, preferable values of 522 and below. 546DAM tends to be associated with the mild and wet conditions in winter - so isn't very popular! In the summer this line is usually close to the northwest of the country. 564DAM and above is usually found with a very warm airmass in summer, and most often in a Spanish plume affair. Very warm or hot conditions are likely. Usually we don't see much above 570DAM or much below 515DAM in the UK. Originally posted on UKww forum by Paul B (copied here with their permission) http://www.ukweatherworld.co.uk

We keep hearing a lot about these different meteorological terms, but which ones are the most reliable? I will attempt to shed a little light. (without going into a great technical explanation of which each is). Thickness (TT) (typically 1000-500mb) Is widely used in forecasting snow, the 528DAM is banded about so frequently, but i have always found it never to be as clear cut as that, TT below 522DAM is really the figure i would look for to use as a benchmark, however sometimes even below this it will rain or sleet, and in some cases thickness well in the 530's will give snow. But why ?, it all relates to the lowest third of the atmosphere, that below 850mbs, (this area is crucial in snow/rain forecasting. It is often a better guide to use 1000-850mb thickness as an indicator for snow, simply because more often that not it is this area which is more important than above. 850mb Temps the temp of the 850mb layer is widely used -5, -10 etc, this is more simple, as it is what is says it is :- the temperature at the 850mb level. For snow usually at least -5 must be present, but again this doesn't always work. The crucial thing we are missing up to now is the temps of the lowest layers of the atmosphere, near the surface, the boundary layer. It is these lowest layers that are important. This is where WBulb & 850mb WBPT comes in, (Wet Buld potential temperature). Dave & Sam have already spoken of the Wet Bulb Temp, the 850mb WBPT is simply the potential temperature of the wet bulb calculated at the 850mb level (this is more for fronts) Forecasters will use a mixture of all three to gauge the risk of snow, but typically it will be the Wet Bulb which will have greatest weight. Today for example we have thickness below 528mb / 850temps are at or below -5C in most places, yet the snow is above 300-400m. Why? Well wet bulb temps are above freezing (between 1-4C), so snow is only likely where the wet bulb falls to below freezing. (the wet bulb freezing level), however in the heaviest showers this is dragged down with the constant precipitation (the atmosphere aloft is cold as i have said above, so with heavy enough rain/hail this is dragged down, the snow level is also dragged down so eventually it snows at the surface temporarily) Over the next 24-30 hrs the wet bulb temps drop steadily, and more and more showers turn to snow. The frontal system, despite moving in with very cold air aloft will have an atlantic maritime warm sector, it will reintroduce wet bulbs above freezing for most of western britain overnight into thurs, thus rain is more likely, despite the low 850mb temps and TT. Only inland away from the sea will the wet bulb remain sub zero, so here on the eastern edge will it fall as snow, and poss more generally as it moves away south and lower wet bulbs feed south. Another situation is when you have high thicknesses and higher 850mb temps, but a cold undercut (continental typically), here wet bulb will be several degrees below zero, so snow is more likely than rain as the cold air at the boundary layer undercuts the warm air aloft. (this was responsible for the blizzrds in the westcountry in feb 1978, thicknesses here were well above 528 and 850mb temps in the SW nearer to 0 to +1C. Taken from the UKww forum - with their permission, originally posted by 'PJB' http://www.ukweatherworld.co.uk

Hello Bagpuss, welcome to net-weather! Down here in Sussex the wind is picking up too, but no rain as yet either. I think it may start arriving here around lunchtime and will probably be with you sometime this afternoon.

Please post your weather conditions here!

Hello Autumn Greetings. Welcome to net-weather, hope you will enjoy it here.... To post pictures onto this forum at the moment, you have to first save them to webspace, then you can embed them in your posts. If you can't save them to webspace, feel free to email them to paul@net-weather.co.uk and then I will place them into your post for you.. Many thanks Paul

Hello Rade, welcome to net-weather! Glad you have managed to find us! Look forward to discussing the weather with you, its always great to chat to overseas visitors about the climate in their country. Croatia sounds amazing, 40ºc one week then 20ºc the next! If you have any questions about net-weather please feel free to ask me or any of the other mods/admins/hosts. Thanks Paul