First sign of Winter

[Turnedoutniceagain]

I'm at 6.2c. Lowest of the season for me so far

[Aaron]

Aonach Moor and Cairngorm Mountains fell below freezing last night.

Eskdalemuir and Shap both fell to 1C, as did Redesdale Camp and Tulloch Bridge, brr.

[Isolated Frost]

Currently 4.8C here, quite a shock to me for being quite near the coast. I'd imagine somewhere did get an air frost last night in the UK (excluding the mountains).

[DeepSnow]

Had a low of 7.0C last night thanks to there being no wind! First time it has gone below double figures this month here! Lowest temperature since June which managed 6.2C. Would be good to beat that low sometime this month though not sure I will! Been a very mild month for low temperatures here with most staybing between 12-14C! Its nice to have these autumn morning with the clear air and watching the mist and fog in the valley below first thing in the morning!

[Osbourne One-Nil]

Dropped down to 1.9C here last night with a grass frost (-0.4º),

[Isolated Frost]

Dropped down to 1.9C here last night with a grass frost (-0.4º),

Yep - first site I check on frosty mornings like this, greatasby.co.uk

Coolest morning since May 5th here, pretty fantastic.

The Durham average temperature (DAT) is now at 14.2C (+1.1C), falling from 14.5C (+1.4C) yesterday.

Eskdalemuir 0.5C @ 0700

[Aaron]

Coldest temperature since 11 June here.. but June was still colder.

[19jacobob93]

Highest point in the UK, therefore should be the first place to receive snow!

http://visit-fortwilliam.co.uk/the-ben-nevis-webcam-fort-william-scotland

[Aaron]

Highest point in the UK, therefore should be the first place to receive snow!

http://visit-fortwil...illiam-scotland

Not necessarily!

[19jacobob93]

Not necessarily!

Note "should"

[Cymro]

Well it got down to 3.4 here so just skimmed a ground frost, nothing visible but im sure slightly higher up there would have definitely been a slight frost, coldest night since beginning of June, autumn has really drawn in quite fast this year, from say 2 weeks ago where it was undoubtedly summer to know where it is very typically autmn.

[spindrift1980]

Note "should"

The first new lying snowfalls in the UK have already occurred - on 28/29 August on the higher Cairngorms, most notably on Beinn Macdui (second highest mountain in Scotland/UK). The date of first snowfall (28 Aug) being exactly the same as in 2010, but whereas 2010 brought a mere dusting, 2011 produced notable new drifts on Beinn Macdui, which I saw myself from 20+ miles away near the Lecht ski centre on 31/8/11. There were still visible remnants for at least 12 days after the initial fall, reckoned to be the most persistent August snowfall since at least 1945.

The Cairngorms (in the central highlands, with the closest the British isles has to a continental climate) often see earlier snowfalls than Ben Nevis, which lies very close to the west coast.

http://www.winterhighland.info/forum/ is a good resource for mountain webcams and tracking the emergence of winter!

[toggerob]

Ben Nevis lies closer to the Atlantic Gulf so despite it being 1000ft higher than any other mainland mountain in the UK, it's still influenced by the same airmass moving over it and takes a substantial lowering of the freezing level for snowfall to settle on its base. The Cairngorms however as already mentioned is much further inland, surrounded by larger sq miles of landmass and as a result the combined height and topographic cooling effect away from the warmer SSTs allows the air to cool considerably, which then obviously falls as snow in the winter months. This same effect can be seen on a larger scale with the perma-frosts of Siberia & Canada on the continents.

[spindrift1980]

Ben Nevis lies closer to the Atlantic Gulf so despite it being 1000ft higher than any other mainland mountain in the UK, it's still influenced by the same airmass moving over it and takes a substantial lowering of the freezing level for snowfall to settle on its base. The Cairngorms however as already mentioned is much further inland, surrounded by larger sq miles of landmass and as a result the combined height and topographic cooling effect away from the warmer SSTs allows the air to cool considerably, which then obviously falls as snow in the winter months. This same effect can be seen on a larger scale with the perma-frosts of Siberia & Canada on the continents.

A good summary, except Ben Nevis certainly isn't 1000ft higher than any other UK mountain, mainland or otherwise. There is only 114 foot difference between Ben Nevis (4409ft) and Beinn Macdui (4295ft). The Cairngorms have 5 of the 6 highest mountains in the UK, and by far the largest areas of land over 2000ft, over 3000ft and over 4000ft (only Ben Nevis & the Cairngorms rise over the 4000ft mark).

[19jacobob93]

The first new lying snowfalls in the UK have already occurred - on 28/29 August on the higher Cairngorms, most notably on Beinn Macdui (second highest mountain in Scotland/UK). The date of first snowfall (28 Aug) being exactly the same as in 2010, but whereas 2010 brought a mere dusting, 2011 produced notable new drifts on Beinn Macdui, which I saw myself from 20+ miles away near the Lecht ski centre on 31/8/11. There were still visible remnants for at least 12 days after the initial fall, reckoned to be the most persistent August snowfall since at least 1945.

The Cairngorms (in the central highlands, with the closest the British isles has to a continental climate) often see earlier snowfalls than Ben Nevis, which lies very close to the west coast.

http://www.winterhighland.info/forum/ is a good resource for mountain webcams and tracking the emergence of winter!

Yeah I remember, not a bad start at all if you ask me!

And thanks for that link! I couldn't find any decent webcams for anywhere apart from Big Ben

[Isolated Frost]

15th September, -0.4C at Tyndrum, brilliant, there is our first lowland frost!

[A Winter's Tale]

Perhaps a chance of frost between the 5th and 7th but it's still a long way out. Hopefully my first frost and freezing temperature of the winter.

[A Winter's Tale]

Tonight could see the first frosts for some so here is our FROST WATCH:

The coldest temperature in the UK currently is 7.9C at Loch Glascarnoch and with the coolest of the uppers expected to arrive later well surely there will be some frosts.

http://www.metoffice.gov.uk/weather/uk/observations/ Here is the perfect site to check temperatures.

The BBC have mentioned that temps may be as low as 2C in places like Aviemore so expect the arrival of Jack Frost within the next hours.

[KTtom]

Well, I've got my first stinking cold for a long time ... not sure if thats a sign

[Isolated Frost]

Tonight could see the first frosts for some so here is our FROST WATCH:

The coldest temperature in the UK currently is 7.9C at Loch Glascarnoch and with the coolest of the uppers expected to arrive later well surely there will be some frosts.

http://www.metoffice...k/observations/ Here is the perfect site to check temperatures.

The BBC have mentioned that temps may be as low as 2C in places like Aviemore so expect the arrival of Jack Frost within the next hours.

Too windy and cloudy, and the possibly wet. Plus under the flow the uppers are not quite cool enough as opposed to slacker hp flows where up to 5c can deliver frosts. 3/4c at a push in some glens at dawn imo.

[wimblettben]

Today has been the first in a while which has actually felt a little bit like Winter. Maybe because the temperature didn't rise above the mid teens.

[GulberwickWeather]

Some blustery wintry showers today and feeling really chilly, single figure max today @ 9.6C

[Aaron]

There was a lot of hail on the roads today which accumulated near the gutters.. looked like snow!

[Interitus]

A good summary, except Ben Nevis certainly isn't 1000ft higher than any other UK mountain, mainland or otherwise. There is only 114 foot difference between Ben Nevis (4409ft) and Beinn Macdui (4295ft). The Cairngorms have 5 of the 6 highest mountains in the UK, and by far the largest areas of land over 2000ft, over 3000ft and over 4000ft (only Ben Nevis & the Cairngorms rise over the 4000ft mark).

Strictly speaking Aonach Beag, Aonach Mor and Carn Mor Dearg are also over 4000ft

[spindrift1980]

Strictly speaking Aonach Beag, Aonach Mor and Carn Mor Dearg are also over 4000ft

Quite right - I forgot about the Aonachs. I should have written that there is no land above 4000ft outside the Cairmgorms and Lochaber.