Stormy Weather

[BBMmk2]

I hate this weather. Not good for asthmatics.

[Anna]

Living in t'fells makes a big difference, high up, yes, but weather wise never a dull moment, while views and the weather changes help get through dreech stuff. Currently freezing fog, endless iron-hard frosts all day every day for three days.

We get days when we are in a white world due to thick mist, whereas at the top of the hill there is blue sky and sunshine. I'm not sure how this comes about, apart from the three rivers playing a part. It once lasted for an entire weekend, when I think we all turned into Hobbits. I have some photos (if this link works it's from the top of the hill) it's like living in a subterranean world

And, one at sunset from slightly different viewpoint


Edit: Hurrah! I have cracked how to post images. I promise I won't make a habit of it

[Serial_Apologist]

We get days when we are in a white world due to thick mist, whereas at the top of the hill there is blue sky and sunshine. I'm not sure how this comes about, apart from the three rivers playing a part. It once lasted for an entire weekend, when I think we all turned into Hobbits. I have some photos (if this link works it's from the top of the hill) it's like living in a subterranean world

And, one at sunset from slightly different viewpoint


Edit: Hurrah! I have cracked how to post images. I promise I won't make a habit of it

Lovely pics Anna - well done!

The phenomenon is known as katabatic flow. As the sun disappears behind the hills, first abandoning the valleys, valley bottom temperatures fall faster than on the surrounding hilltops. When the falling valley temperatures reach the dewpoint - which is before the hilltops - fog starts to form. If the air above remains warmer than in the valley, above the dewpoint and therefore free of fog, the cold air sinks to the bottom (katabatic flow), and an inversion or "cap" seals the cold air with its fog in the valley. If the temperature on the hilltops equalises with that in the valley, the fog rises.

[mangerton]

Lovely pics Anna - well done!

The phenomenon is known as katabatic flow. As the sun disappears behind the hills, first abandoning the valleys, valley bottom temperatures fall faster than on the surrounding hilltops. When the falling valley temperatures reach the dewpoint - which is before the hilltops - fog starts to form. If the air above remains warmer than in the valley, above the dewpoint and therefore free of fog, the cold air sinks to the bottom (katabatic flow), and an inversion or "cap" seals the cold air with its fog in the valley. If the temperature on the hilltops equalises with that in the valley, the fog rises.

Agreed, great pics. Do post more, Anna, if they're as good as these.

S_A, thanks for the explanation of katabatic flow. I see this effect from time to time on my way to work when I arrive at the top of a hill and am about to descend into a foggy lower lying part of the city.

Strangely, my place of work appears to sit in a place with a micro climate of its own. Temperatures are frequently 2-3 degrees colder than locations only a few hundred metres away.

[salymap]

Very nice pix Anna, agreed.

Are others finding dear Windows extra slow and 'not responding' at the moment? Off topic but with house problems, the time this takes to come to life is trying my patience.

I hope we all have a bit of sun today to warm things up before the rain comes.

[Serial_Apologist]

Very nice pix Anna, agreed.

Are others finding dear Windows extra slow and 'not responding' at the moment? Off topic but with house problems, the time this takes to come to life is trying my patience.

I hope we all have a bit of sun today to warm things up before the rain comes.

Fat chance I'm afraid, saly, as we're still in the continental arctic air - but, cheer up! it's going to be really wet and windy tomorrow, but MUCH MILDER!!!

Btw I find the system's incredibly slow most of the time these days, buffering links every few seconds so it takes 20 minutes to play a 5 minute uploaded clip. I find the best thing is to download any clips to file and view them later - but it IS a nuisance when somebody's just posted a clip and you want to respond to them.

[aka Calum Da Jazbo]

might just be time to clean the registries and delete temporary internet files etc [try Glary Utilities it is available in a free version]

bright white frosty blue sky and the coldest yet .... looking forward to opening the windows again during the wet windy milder spell ahead!

[Flay]

might just be time to clean the registries and delete temporary internet files etc [try Glary Utilities it is available in a free version]

If you download this please remember to un-check all the boxes wanting you to set this and that as the default. I suppose that is how they recoup their costs, but you do not need it.

[aka Calum Da Jazbo]

and to install all sorts of tool bars but it is an effective utility

[Anna]

S_A, thank you so much for the explanation about katabatic flow (I had erroneously thought it something to do with the rivers and difference in temp between land and water because I see the mist rising from the river) The weekend when it didn't shift at all was very unusual, normally it clears after a couple of hours. In fact, having read a bit, I didn't realise there were so many different causes of mist/fog. Quite fascinating.

Saly and S_A, are you just finding this site slow (sometimes it does go at a snails pace) or all the internet? If it's all of the Net then perhaps it's your ISP, have you done a speed test? A friend was complaining of the same thing, BT came out and traced the fault back to the exchange and fixed it.

Edit: Spectacular meteor show tonight around 2am, unfortunately too cloudy for most of us except South Scotland and North England http://www.bbc.co.uk/news/science-environment-20709852

[Flay]

and to install all sorts of tool bars but it is an effective utility

I have just downloaded and run it. It is fast. Now to see if it makes a difference on my system... It looks like it will do the job of C-Cleaner too.

Some time ago I obtained a "registry booster." I really don't know if such things are needed. Glary seems to sort this out too.

[Flay]

By the way, freezing fog all day here in S Yorks, it looks to be getting worse. My friend near Grantham said they had briliant sunshine this morning.

I don't think I'll be seeing the meteor shower tonight

[Anna]

I don't think I'll be seeing the meteor shower tonight

I don't know if anyone did, certainly no pics have been posted on the BBC site. I did check about 1.30am but it was low, thick cloud.
Miserable gloomy dark day. Early this morning the barometer had dropped to 982 and it's been tipping it down from before dawn, eased off lunchtime but now hammering down again. Only consolation is that we haven't had the high winds predicted. It's evidently around 8° but it certainly doesn't feel much warmer.

[Serial_Apologist]

I don't know if anyone did, certainly no pics have been posted on the BBC site. I did check about 1.30am but it was low, thick cloud.
Miserable gloomy dark day. Early this morning the barometer had dropped to 982 and it's been tipping it down from before dawn, eased off lunchtime but now hammering down again. Only consolation is that we haven't had the high winds predicted. It's evidently around 8° but it certainly doesn't feel much warmer.

Yes, the part of the front that's brought the rain and milder temperatures is dawdling further west than here, as it moves northeast. It cleared here at around 2 pm, and I'm just watching the dramatic spectacle to the north of the retreating frontal cloud moving north, raggedy cumulonimbus illuminated dirty yellow by the descending sun, and masses and masses of greyish-purple scud cloud, with some salmon pink cumulus popping up, swept in underneath on the south-southwester, which has still to pick up at ground level. Very clear visibility; 8.5 C as of now.

Simon's still hedging his bets on a white Christmas, saying it looks mostly unlikely.

[Anna]

I'm just watching the dramatic spectacle to the north of the retreating frontal cloud moving north, raggedy cumulonimbus illuminated dirty yellow by the descending sun, and masses and masses of greyish-purple scud cloud, with some salmon pink cumulus popping up, swept in underneath on the south-southwester, which has still to pick up at ground level.

S_A, that description makes me jealous! So often here the weather just sits on top of us, grey with low cloud base and mist. It's rare that we get some decent cloud watching action, particularly at this time of year - do you take photos as a record to go with your other records? That dirty yellow and purple is so spectacular.