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johncs2016
02 December 2023 14:00:44
After last night's excitement, our weather here in Edinburgh has now reverted back to its boring self with constant grey skies and with absolutely nothing happening which is even remotely interesting.😡

The temperature at all three of my local stations has risen above freezing once again, and our very slight covering of snow from last night has now largely disappeared here in NW Edinburgh where I am.😡
The north of Edinburgh, usually always missing out on snow events which occur not just within the rest of Scotland or the UK, but also within the rest of Edinburgh.
scillydave
02 December 2023 14:25:58
Much colder than forecast here today - currently an ice day with a high of -0.3c and temp at the moment of -0.5c

Interesting to see how this affects tonight's precipitation which is forecast as rain.

Met Office App says it should be 3c at present 
Currently living at roughly 65m asl North of Cowbridge in the Vale of Glamorgan.

Formerly of, Birdlip, highest village in the Cotswolds and snow heaven in winter; Hawkinge in Kent - roof of the South downs and Isles of Scilly, paradise in the UK.
picturesareme
02 December 2023 15:05:25
3pm and still the temperature has failed to get above freezing. We can thank patchy freezing mist & fog for it I think. 

Currently -0.5C. 

 
Bertwhistle
02 December 2023 15:27:10
Zero degrees and below freezing for most of day. Some mistiness at times and really, really raw. Bad day to change the pond lining but we did.
🐟
Bertie, Itchen Valley.
Retire while you can still press the 'retire now' button.
Retron
02 December 2023 15:38:24
Today's daytime high was just 1.1C, which makes it a very cold day indeed, especially considering there's no snow on the ground, and the ground itself isn't frozen.

The clear skies, as shown on all the models, failed to arrive today. It's been overcast throughout and has now turned misty. It seems the sun adds a degree or two even at this time of year!

It's currently +0.3, dew -0.6.
 
Leysdown, north Kent
dagspot
02 December 2023 15:39:39
light snow, temp -0.5dc 
Neilston 600ft ASL
four
  • four
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02 December 2023 15:50:14
A lot of places through Ryedale north of York look like having an ice day with some not reaching -2C due to fog persisting.
Here it has touched +0.1 that's got to be deliberate.
This evening some cloud already it will be a more normal frost I would think, -0.3C currently
doctormog
02 December 2023 15:51:24
No fog or snow here but it looks like it will be an ice day. Currently mostly clear and -2.7°C after an earlier max of -0.3°C.
sunny coast
02 December 2023 16:03:29
An unexpectedly bitter day here near Eastbourne max just marginally above freezing around midday but has since dropped back to minus 1 in thickening freezing fog and some places inland temps mid pm are minus 3 . 
NMA
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02 December 2023 16:08:02

An unexpectedly bitter day here near Eastbourne max just marginally above freezing around midday but has since dropped back to minus 1 in thickening freezing fog and some places inland temps mid pm are minus 3 . 

Originally Posted by: sunny coast 


It's been foggy and below freezing all day inland. Sunny on the coast. 
At least no wind which would create a penetrating frost.
 
Vale of the Great Dairies
South Dorset
Elevation 60m 197ft
Gusty
02 December 2023 16:44:16
A very cold day with a high very briefly of 1.4c. Again, impressive given the lack of snow cover here.

Also impressive is the fact that it remained sub zero until 11am, falling back below 0c just after 3pm.

A misty day with snow cover a little way inland perfectly preserved on this greyest, misty and quietest of December days.

I'm expecting a very rapid rise of temperature around midnight as we pull in air off the channel ahead of tomorrows rain. Its not uncommon for a 6 degree rise in an hour in such a set up, we shall see.

Currently -0.6c / -1.1c
Fog
Calm conditions
1016.9mb steady

 
Steve - Folkestone, Kent
Current conditions from my Davis Vantage Vue
https://www.wunderground.com/dashboard/pws/IFOLKE11 
Join Kent Weather on Facebook.
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Retron
02 December 2023 16:44:40

No fog or snow here but it looks like it will be an ice day. Currently mostly clear and -2.7°C after an earlier max of 0.3°C.

Originally Posted by: doctormog 



Your definition of an ice day is different to mine! (Or there's a typo)...

I take an ice day to have a max of -0.1 or less... even 0.0 isn't a guarantee, as it could be a rounded 0.01.

Talking of ice, though, it's now -0.2C out there and still misty with it. Three frosts in a row... my mum used to say "three frosts and it wets itself", and indeed tomorrow it's going to rain. There's a kernel of truth in the old sayings!
Leysdown, north Kent
Bolty
02 December 2023 16:53:33
A high of 0.7°C here today, with the frost lasting even in spells of sunshine. Now a few flurries are threatening from the SW.
Scott
Blackrod, Lancashire (4 miles south of Chorley) at 156m asl.
My weather station 
Bolty
02 December 2023 16:54:48

Your definition of an ice day is different to mine! (Or there's a typo)...

I take an ice day to have a max of -0.1 or less... even 0.0 isn't a guarantee, as it could be a rounded 0.01.

Talking of ice, though, it's now -0.2C out there and still misty with it. Three frosts in a row... my mum used to say "three frosts and it wets itself", and indeed tomorrow it's going to rain. There's a kernel of truth in the old sayings!

Originally Posted by: Retron 



Is a high of 0.0°C exactly still considered an ice day? I'd personally call it one, anyway.
Scott
Blackrod, Lancashire (4 miles south of Chorley) at 156m asl.
My weather station 
Retron
02 December 2023 17:03:45

Is a high of 0.0°C exactly still considered an ice day? I'd personally call it one, anyway.

Originally Posted by: Bolty 


I'd be a bit wary, as there's an 4-in-9 chance that it's actually above freezing (if you take -0.4 to -0.1 to be an ice day, 0.0 to be dead on freezing, could be either way, 0.1 to 0.4 to not be an ice day). It's simpler IMO just to take a rounded -0.1 or lower to be an ice day, no ambiguity then.

 
Leysdown, north Kent
doctormog
02 December 2023 17:15:03

Your definition of an ice day is different to mine! (Or there's a typo)...

I take an ice day to have a max of -0.1 or less... even 0.0 isn't a guarantee, as it could be a rounded 0.01.

Talking of ice, though, it's now -0.2C out there and still misty with it. Three frosts in a row... my mum used to say "three frosts and it wets itself", and indeed tomorrow it's going to rain. There's a kernel of truth in the old sayings!

Originally Posted by: Retron 



Typo, -0.3°C!

Down to -3.1°C here now and much colder inland.
Retron
02 December 2023 17:24:13

Typo, -0.3°C!

Down to -3.1°C here now and much colder inland.

Originally Posted by: doctormog 


Phew! Knowing you're a scientific sort of guy, I did wonder! 😀

Still -0.2 here, it's plateaued for the last hour despite the lack of wind. There's going to be a firework display at a nearby garden centre tonight, so I was hoping for the wind to pick up to make it quieter... no such luck.
 
Leysdown, north Kent
POD
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02 December 2023 17:24:47
Fog.
-1.8c max. -0.3c at 02:26
1021.8mb rising
Pat, Crawley Down, West Sussex.
Caz
  • Caz
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02 December 2023 17:42:26
So far today, our max temp has been -1.3c
Market Warsop, North Nottinghamshire.
Join the fun and banter of the monthly CET competition.
johncs2016
02 December 2023 18:12:34

Your definition of an ice day is different to mine! (Or there's a typo)...

I take an ice day to have a max of -0.1 or less... even 0.0 isn't a guarantee, as it could be a rounded 0.01.

Talking of ice, though, it's now -0.2C out there and still misty with it. Three frosts in a row... my mum used to say "three frosts and it wets itself", and indeed tomorrow it's going to rain. There's a kernel of truth in the old sayings!

Originally Posted by: Retron 



I would agree with that, but I would also say that we need to be careful about how we define our "maximum" temperature. For Edinburgh Gogarbank and the botanic gardens in Edinburgh (as is the case at other SYNOP stations throughout the UK), our temperature data will usually come from raw SYNOP/BUFR data which has been decoded. In most cases, that will be every hour, although I have recently discovered that raw SYNOP data for Edinburgh Gogarbank is also being transmitted at other times within each hour as well such as at half past the hour or 20 minutes past the hour.

If we define what an official observation day is (which is usually from 09:00 UTC on one day to 09:00 UTC on the next day), we could easily take the highest temperature reading from all of the readings within that period and call that our "maximum" temperature. As it turns out though, that is nothing more than the highest reading and will not usually be the same as the actual official "maximum" temperature.

Those official minimum and maximum temperatures will therefore come from separate raw SYNOP/BUFR codes within those same transmitted, which is only transmitted at 06:00 UTC, 09:00 UTC, 18:00 UTC and 21:00 UTC on each day. Since our observation day usually begins and ends at 09:00 UTC on each day, the important readings here will come at 09:00 UTC and 21:00 UTC.

Each of those readings cover the preceding 12 hour period, so the minimum and maximum temperature data for 09:00 UTC will cover the period from 21:00 UTC on the previous day to 09:00 UTC whereas that same data for 21:00 UTC will cover the period from 09:00 UTC on that morning to 21:00 UTC. The higher of those two maximum temperature readings will then be the official maximum temperature on that day with the lower of those two minumum temperature readings being that day's official minimum temperature.

Under that system, those official maximum temperatures will always be the same as or higher than the highest individual temperature reading for throughout that official observation day. Because of that, any official declaration of an ice day can't be made from those highest temperature readings alone because even if that is below freezing, an ice day can only be declared if the official maximum temperature from those twice daily summary readings at 09:00 UTC and 21:00 UTC is below freezing. If that comes out to be either at or above freezing, there can be no official ice day even if the highest individual temperature reading throughout that official observation day is below freezing.

Of course, different stations will operate in different ways in that regard, but this is how official Met Office weather stations usually operate.

Meanwhile here in Edinburgh, it is still overcast but in spite of that, the temperature has dropped to just below freezing once again. Today's official maximum temperature (technically, that can't officially be finalized until 09:00 UTC tomorrow morning) so far at Edinburgh Gogarbank was just 0.9°C which actually makes today our coldest day of this year so far.


 
The north of Edinburgh, usually always missing out on snow events which occur not just within the rest of Scotland or the UK, but also within the rest of Edinburgh.
Bolty
02 December 2023 18:16:19
My time-lapse for today: a cold early winter's day with a hard frost persisting.

https://youtu.be/E1dsbHifCYM 
Scott
Blackrod, Lancashire (4 miles south of Chorley) at 156m asl.
My weather station 
picturesareme
02 December 2023 18:32:42

3pm and still the temperature has failed to get above freezing. We can thank patchy freezing mist & fog for it I think. 

Currently -0.5C. 

 

Originally Posted by: picturesareme 



-0.2C was the top temperature today during daylight hours (and still now) which for a low coastal city on the South coast is impressive. Last night wasn't even that cold only dropping to around -2C and this afternoon we did have some sunshine. 
Rob K
02 December 2023 21:09:37
An ice day here too, set out at 2.30pm and the car thermometer was reading -1C, never went above zero all the way to Reading and back, and was -2C by the time we came back home at 6pm.

Felt properly festive!

Middle Wallop 6am-6pm maximum was -2.1C, although the 9am-9am max will no doubt be spoilt by morning!
Yateley, NE Hampshire, 73m asl
"But who wants to be foretold the weather? It is bad enough when it comes, without our having the misery of knowing about it beforehand." — Jerome K. Jerome
roadrunnerajn
02 December 2023 21:16:05
After a frosty night and early morning lowest -2c. Cloud and patchy heavy rain moved in mid afternoon with a steadily raising temperature, now +8.8c
Germoe, part of the breakaway Celtic Republic.
dagspot
02 December 2023 21:28:47
mist, still lying snow, temp -0.6 dc  a few showers out west
Neilston 600ft ASL

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