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Quantum
23 March 2020 17:30:57


 


This is quite ridiculous.


Not only does it bring -10C 850hpa temps but it puts us in reach of breaking yet another high pressure record.


It would also be the coldest airmass of the entire 'winter'


 


2023/2024 Snow days (approx 850hpa temp):
29/11 (-6), 30/11 (-6), 02/12 (-5), 03/12 (-5), 04/12 (-3), 16/01 (-3), 18/01 (-8), 08/02 (-5)

Total: 8 days with snow/sleet falling.

2022/2023 Snow days (approx 850hpa temp):

18/12 (-1), 06/03 (-6), 08/03 (-8), 09/03 (-6), 10/03 (-8), 11/03 (-5), 14/03 (-6)

Total: 7 days with snow/sleet falling.

2021/2022 Snow days (approx 850hpa temp):

26/11 (-5), 27/11 (-7), 28/11 (-6), 02/12 (-6), 06/01 (-5), 07/01 (-6), 06/02 (-5), 19/02 (-5), 24/02 (-7), 30/03 (-7), 31/03 (-8), 01/04 (-8)
Total: 12 days with snow/sleet falling.
Tim A
23 March 2020 17:49:56


This is quite ridiculous.


Not only does it bring -10C 850hpa temps but it puts us in reach of breaking yet another high pressure record.


It would also be the coldest airmass of the entire 'winter'


 


Originally Posted by: Quantum 


Is it though? 


850hpa temps at 1040mb are going to be much higher in the atmosphere than the 850hpa temps when we have a polar NW and sea level pressure of 970mb.


Tim
NW Leeds
187m asl

Β My PWS 
Whether Idle
23 March 2020 17:52:35


 


Is it though? 


850hpa temps at 1040mb are going to be much higher in the atmosphere than the 850hpa temps when we have a polar NW and sea level pressure of 970mb.


Originally Posted by: Tim A 


Its a fairly typical early spring cold high and typical cold east or North easterly type set up.  Wont be a kind regime of weather but will encourage people to stay indoors if cloudier and cold.


Dover, 5m asl. Half a mile from the south coast.
Gooner
23 March 2020 19:01:48

 


 


Chilly weather on the way 



 


Remember anything after T120 is really Just For Fun



Marcus
Banbury
North Oxfordshire
378 feet A S L


Gandalf The White
23 March 2020 19:40:15


Seems like we could see the coldest airmass of the entire 'winter' next week. Would not rule out some late march or early April snow.


 


Originally Posted by: Quantum 


Yes, I’ve been watching this pattern evolve for several days. GFS shows fairly widespread wintry showers overnight Saturday into Sunday.  It will feel pretty bitter under cloud cover with a brisk NE wind but quite pleasant in any sunshine with shelter.  


 


Location: South Cambridgeshire
130 metres ASL
52.0N 0.1E


ozone_aurora
23 March 2020 19:50:31

Apologise for posting something off topic here, but did so to ensure better attention. If there is a better site on TWO to post this please let me know.

After looking at satellite images of canary islands just to see what the weather like onhttps://www.metoffice.gov.uk/public/weather/observation/map#?map=SatelliteIRAndRADAR&fcTime=1584949500&zoom=5&lon=-4.00&lat=52.45, I am now receiving the message when I access https://www.metoffice.gov.uk/: (Is was looking for forecast charts) :-


Access Denied


You don't have permission to access "http://www.metoffice.gov.uk/public/weather/observation/map" on this server.


Reference #18.cd8f655f.1584992688.29ed31ab.


 


How very odd! Why is this? 

nsrobins
23 March 2020 20:57:09

What work is deemed ‘absolutely necessary’?


Sorry - wrong thread 😊


Neil
Fareham, Hampshire 28m ASL (near estuary)
Stormchaser, Member TORRO
Gandalf The White
23 March 2020 21:07:34


What work is deemed ‘absolutely necessary’?


Sorry - wrong thread 😊


Originally Posted by: nsrobins 


LOL


Checking the model output is unarguably 'absolutely necessary' but fortunately an occupation you can carry out from home.


With family members, if they're similarly afflicted....


πŸ˜‰


Location: South Cambridgeshire
130 metres ASL
52.0N 0.1E


DEW
  • DEW
  • Advanced Member
24 March 2020 07:21:07

Jet stream running close to the NW this week with strong branch over the Med until it ties itself in knots from Sat 28th. The Med branch resumes and dominates until Tue 7th when it begins to move back our way.


GFS 0z has same pattern as yesterday, first HP over Baltic with ridge to UK (e-lies in S of UK, W-lies in N) until Sun 29th when strong new HP centre S of Icelland brings in cold NE-lies for a couple of days before it, too, moves off to Baltic by Thu 2nd. Despite some advances by Atlantic LP, this hangs on to Thu 9th with mostly S-ly flow.


ECM similar to Wed 1st but HP stays mid Atlantic and brings in some really cold N-lies by Fri 3rd. Big contrast with GFS and GEFS.


GEFS temps bottom out around 30/31st Mar (~ 9C below norm) then diverge with mean close to norm by 2nd Apr but wide range. General tendency to be on mild side at least in the S towards the end on Fri 10th. A little rain here and there, more likely after Fri 3rd.


 


War does not determine who is right, only who is left - Bertrand Russell

Chichester 12m asl
nsrobins
24 March 2020 07:29:10


 


LOL


Checking the model output is unarguably 'absolutely necessary' but fortunately an occupation you can carry out from home.


With family members, if they're similarly afflicted....


πŸ˜‰


Originally Posted by: Gandalf The White 


I tried to involve family members over the years but two divorces later and I tend to restrict my ‘activities’ to just me these days πŸ€ͺ😁


Neil
Fareham, Hampshire 28m ASL (near estuary)
Stormchaser, Member TORRO
Gandalf The White
24 March 2020 09:03:09


 


I tried to involve family members over the years but two divorces later and I tend to restrict my ‘activities’ to just me these days πŸ€ͺ😁


Originally Posted by: nsrobins 


ROFL


The interaction in winter in this family extends to: 


Me; "It looks like it might snow in x days"


Wife: "Let's wait and see."


πŸ™„


Location: South Cambridgeshire
130 metres ASL
52.0N 0.1E


Maunder Minimum
24 March 2020 09:24:35

Thames snow streamer incoming in a few days? Just what you want at the start of April.


Note to the weather gods - please could you arrange for the UK to have winter during the winter months in future and spring when spring is due.


New world order coming.
nsrobins
24 March 2020 11:15:06
For a brief period Sun am to Mon pm there is a real chance of snowfall, albeit borderline and transient, across the SE.
Uppers of -11, a very new cold air mass and a N Sea around 2C above normal equate to a surface temp of about +4 Sun pm (GFS HD) but into Sun night if a CVZ sets-up we could see some snow in places.
Neil
Fareham, Hampshire 28m ASL (near estuary)
Stormchaser, Member TORRO
Phil G
24 March 2020 12:40:06
Maybe the colder weather may be a bit of a blessing keeping a few more people indoors who otherwise would still have ventured out.
JACKO4EVER
24 March 2020 16:07:40
What a wretched climate this is, you just couldn’t make it up.
😑
nsrobins
24 March 2020 16:09:39
Still expecting a covering of snow in the E and SE of the UK into Sunday night / on paper parameters look on or just the right side of the line. It won’t last long if it happens but it would be an interesting diversion from all the gloom at the moment.
Neil
Fareham, Hampshire 28m ASL (near estuary)
Stormchaser, Member TORRO
Quantum
24 March 2020 16:26:44

What the hell is with the GFS 12Z?!!?!?!?!?


 



2023/2024 Snow days (approx 850hpa temp):
29/11 (-6), 30/11 (-6), 02/12 (-5), 03/12 (-5), 04/12 (-3), 16/01 (-3), 18/01 (-8), 08/02 (-5)

Total: 8 days with snow/sleet falling.

2022/2023 Snow days (approx 850hpa temp):

18/12 (-1), 06/03 (-6), 08/03 (-8), 09/03 (-6), 10/03 (-8), 11/03 (-5), 14/03 (-6)

Total: 7 days with snow/sleet falling.

2021/2022 Snow days (approx 850hpa temp):

26/11 (-5), 27/11 (-7), 28/11 (-6), 02/12 (-6), 06/01 (-5), 07/01 (-6), 06/02 (-5), 19/02 (-5), 24/02 (-7), 30/03 (-7), 31/03 (-8), 01/04 (-8)
Total: 12 days with snow/sleet falling.
nsrobins
24 March 2020 16:35:27


What the hell is with the GFS 12Z?!!?!?!?!?


 



Originally Posted by: Quantum 


Come on Q, where have you been hiding? πŸ˜‚


Neil
Fareham, Hampshire 28m ASL (near estuary)
Stormchaser, Member TORRO
Quantum
24 March 2020 16:46:28


 


Come on Q, where have you been hiding? πŸ˜‚


Originally Posted by: nsrobins 


It has a 2nd wave too though! And its alot colder than the 6Z.


 


2023/2024 Snow days (approx 850hpa temp):
29/11 (-6), 30/11 (-6), 02/12 (-5), 03/12 (-5), 04/12 (-3), 16/01 (-3), 18/01 (-8), 08/02 (-5)

Total: 8 days with snow/sleet falling.

2022/2023 Snow days (approx 850hpa temp):

18/12 (-1), 06/03 (-6), 08/03 (-8), 09/03 (-6), 10/03 (-8), 11/03 (-5), 14/03 (-6)

Total: 7 days with snow/sleet falling.

2021/2022 Snow days (approx 850hpa temp):

26/11 (-5), 27/11 (-7), 28/11 (-6), 02/12 (-6), 06/01 (-5), 07/01 (-6), 06/02 (-5), 19/02 (-5), 24/02 (-7), 30/03 (-7), 31/03 (-8), 01/04 (-8)
Total: 12 days with snow/sleet falling.
DPower
24 March 2020 18:51:41
https://www.ecmwf.int/en/about/media-centre/news/2020/drop-aircraft-observations-could-have-impact-weather-forecasts .
I had been musing about this the last day or so especially as there is disagreement in the models at relatively short timeframe.
Brian Gaze
24 March 2020 18:58:07


https://www.ecmwf.int/en/about/media-centre/news/2020/drop-aircraft-observations-could-have-impact-weather-forecasts


I had been musing about this the last day or so especially as there is disagreement in the models at relatively short timeframe.


Originally Posted by: DPower 


I raised this in a thread several days ago. Still available here:


https://www.theweatheroutlook.com/twocommunity/default.aspx?g=posts&t=20927


 


Brian Gaze
Berkhamsted
TWO Buzz - get the latest news and views 
"I'm not socialist, I know that. I don't believe in sharing my money." - Gary Numan
DPower
24 March 2020 19:00:23
My bad Brian. Just seen your thread Every day like Christmas.
Cheers.
RobN
  • RobN
  • Advanced Member
24 March 2020 19:01:06

GEFS gives highest snow risk for me since last November.


Rob
In the flatlands of South Cambridgeshire 15m ASL.
Brian Gaze
24 March 2020 19:02:49

My bad Brian. Just seen your thread Every day like Christmas.
Cheers.

Originally Posted by: DPower 



Brian Gaze
Berkhamsted
TWO Buzz - get the latest news and views 
"I'm not socialist, I know that. I don't believe in sharing my money." - Gary Numan
Tim A
24 March 2020 19:39:38
GFS seems a bit out of kilter with a NE flow and possible snow showers later in the weekend, ECM and UKMO have the high pressure much closer, with less of a risk, although SE areas more favourable. Seems to be more of a trend for a potent northerly around the 240hour mark now.


Tim
NW Leeds
187m asl

Β My PWS 

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