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Offline Stormchaser  
#621 Posted : 25 March 2020 12:02:54(UTC)
Stormchaser

Rank: Advanced Member

Joined: 24/10/2008(UTC)
Posts: 11,846
Man
Location: West Hants

Optimal conditions here today for maximum UV for the time of year. One never sees a clearer sky in this part of the world - not one contrail getting involved and generally less pollutants in the air to serve as condensation nuclei for cloud formation.

Reminds me fondly of April 2010 during the Icelandic good-luck-writing-it-correctly volcano eruption.


From sitting out in the garden during coffee and lunch breaks during the lock-down, I've developed the slightest of tans over the past few days.

If you have any problems or queries relating to TWO you can Email twomoderationteam@gmail.com :)

Homeland: Rural Mid-West Hants nearly 10 miles S of Salisbury (near Fordingbridge). More insights: https://twitter.com/peacockreports

2018's Homeland Extremes:

T-Max: 30.9*C 8th July | T-Min: -7.7*C 28th Feb | Wettest Day: 19.2mm 14th October | Ice Days: 4 (28 Feb - 2 Mar & 18 Mar)

Keep Calm and Forecast On

Offline Bertwhistle  
#622 Posted : 25 March 2020 18:18:26(UTC)
Bertwhistle

Rank: Advanced Member

Joined: 20/11/2015(UTC)
Posts: 6,104
Location: Central Southern England

Reading 3.9 Chilton 4.0  Camborne 4.1

Serious UV for March!

Bertie, Itchen Valley.

Remember Finlake!

Offline Bertwhistle  
#623 Posted : 25 March 2020 18:22:17(UTC)
Bertwhistle

Rank: Advanced Member

Joined: 20/11/2015(UTC)
Posts: 6,104
Location: Central Southern England

Originally Posted by: Stormchaser Go to Quoted Post

Optimal conditions here today for maximum UV for the time of year. One never sees a clearer sky in this part of the world - not one contrail getting involved and generally less pollutants in the air to serve as condensation nuclei for cloud formation.

Reminds me fondly of April 2010 during the Icelandic good-luck-writing-it-correctly volcano eruption.


From sitting out in the garden during coffee and lunch breaks during the lock-down, I've developed the slightest of tans over the past few days.

Had that gin-clear sky James (we are not that far from you obviously) but it was so crisp it was hard to pretend it was a luscious spring or summer day. Remember March 2012? Same sort of UV but such a different feel. That said, a bit of browning boasted by the teenage offspring today!

Bertie, Itchen Valley.

Remember Finlake!

Offline Bertwhistle  
#624 Posted : 27 March 2020 14:50:09(UTC)
Bertwhistle

Rank: Advanced Member

Joined: 20/11/2015(UTC)
Posts: 6,104
Location: Central Southern England

Max UV has dropped a bit today in southern stations, despite continuous sunshine here. Air quality/ humidity?

Bertie, Itchen Valley.

Remember Finlake!

Offline Bertwhistle  
#625 Posted : 01 April 2020 12:10:07(UTC)
Bertwhistle

Rank: Advanced Member

Joined: 20/11/2015(UTC)
Posts: 6,104
Location: Central Southern England

4.3 yesterday in Chilton but a 5 forecast for this area on Sunday:

https://www.metoffice.gov.uk/weather/forecast/gcp46pp1c#?date=2020-04-05

 

Bertie, Itchen Valley.

Remember Finlake!

Offline Whether Idle  
#626 Posted : 01 April 2020 15:56:19(UTC)
Whether Idle

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Location: Dover

Originally Posted by: Bertwhistle Go to Quoted Post

4.3 yesterday in Chilton but a 5 forecast for this area on Sunday:

https://www.metoffice.gov.uk/weather/forecast/gcp46pp1c#?date=2020-04-05

 

Hopefully Sun day will deliver the "5" goodies 

The Johnson Government had a choice on whether to tackle the virus hard- or let it spread- they've shown they care more for their money than they do for the health and the safety of the British People.
Offline Bertwhistle  
#627 Posted : 02 April 2020 14:29:28(UTC)
Bertwhistle

Rank: Advanced Member

Joined: 20/11/2015(UTC)
Posts: 6,104
Location: Central Southern England

Originally Posted by: Whether Idle Go to Quoted Post

 

Hopefully Sun day will deliver the "5" goodies 

Me too WI; still not enough known about UV on this darned virus.

Meanwhile 4.4 in Chilton and 3.9 in Reading today, between the cloud patches.

Bertie, Itchen Valley.

Remember Finlake!

Offline forestedge  
#628 Posted : 02 April 2020 21:46:38(UTC)
forestedge

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Joined: 09/04/2006(UTC)
Posts: 134
Man
United Kingdom
Location: Ashurst Bridge, Totton, Hampshire

4.2 here today highest of the year so far. Could be 5 on Sunday 🔥

Roger

Ashurst Bridge (New Forest)

9m ASL

http://www.newforestweather.co.uk

Offline Stormchaser  
#629 Posted : 03 April 2020 09:15:18(UTC)
Stormchaser

Rank: Advanced Member

Joined: 24/10/2008(UTC)
Posts: 11,846
Man
Location: West Hants

https://twitter.com/peacockreports/status/1245035614782750720

It will be interesting to see how much of an effect this has, if the weather is clear in the N. half of the UK Sun or Mon.

Sunday's looking rather cloudy but Monday shows some potential, sporadically:

 

SHOW EXTERNAL IMAGES

If you have any problems or queries relating to TWO you can Email twomoderationteam@gmail.com :)

Homeland: Rural Mid-West Hants nearly 10 miles S of Salisbury (near Fordingbridge). More insights: https://twitter.com/peacockreports

2018's Homeland Extremes:

T-Max: 30.9*C 8th July | T-Min: -7.7*C 28th Feb | Wettest Day: 19.2mm 14th October | Ice Days: 4 (28 Feb - 2 Mar & 18 Mar)

Keep Calm and Forecast On

Offline Bertwhistle  
#630 Posted : 03 April 2020 16:36:36(UTC)
Bertwhistle

Rank: Advanced Member

Joined: 20/11/2015(UTC)
Posts: 6,104
Location: Central Southern England

Reading 4.6 Camborne 4.8+, Chilton 5.2.

Suspect Chilton.

Brilliant sun today and between now and Monday, from what James (SC) has said, with potential 5s anyway, there is the further potential of some exceptional high UV input, looking like the N of the UK from those charts.

Bertie, Itchen Valley.

Remember Finlake!

Offline Bertwhistle  
#631 Posted : 04 April 2020 14:19:53(UTC)
Bertwhistle

Rank: Advanced Member

Joined: 20/11/2015(UTC)
Posts: 6,104
Location: Central Southern England

Cam 5.3   R 5.2   Ch(5.6)

 

Belfast and Leeds topped 4.7

 

Gib only made 4.0 (but just fell shy of 8 on 31st March!)

Bertie, Itchen Valley.

Remember Finlake!

Offline forestedge  
#632 Posted : 04 April 2020 19:37:13(UTC)
forestedge

Rank: Advanced Member

Joined: 09/04/2006(UTC)
Posts: 134
Man
United Kingdom
Location: Ashurst Bridge, Totton, Hampshire

Hi Bertie

I know this has been raised before but I think you are inconsistent on reading the defra uv scales,

2nd April - Meanwhile 4.4 in Chilton and 3.9 in Reading today, between the cloud patches.

I agree just below 4 at Reading but Chilton was 3.4

4th April - Cam 5.3   R 5.2   Ch(5.6)

Surely from interpretation of the 2nd April, Reading was 4.2 not 5.2 and Chilton 4.4 not 5.4?

(I maxed at 4.0 today and am about 50 miles southwest of Reading) Meteoblue forecast for today was 4.0

The scale must start at zero as that is the value before sunset and rises thereafter. Probably need to contact DEFRA to confirm!

Stay safe at home...

 

 

 

 

 

 

 

Roger

Ashurst Bridge (New Forest)

9m ASL

http://www.newforestweather.co.uk

Offline Bertwhistle  
#633 Posted : 05 April 2020 13:33:07(UTC)
Bertwhistle

Rank: Advanced Member

Joined: 20/11/2015(UTC)
Posts: 6,104
Location: Central Southern England

Originally Posted by: forestedge Go to Quoted Post

Hi Bertie

I know this has been raised before but I think you are inconsistent on reading the defra uv scales,

2nd April - Meanwhile 4.4 in Chilton and 3.9 in Reading today, between the cloud patches.

I agree just below 4 at Reading but Chilton was 3.4

4th April - Cam 5.3   R 5.2   Ch(5.6)

Surely from interpretation of the 2nd April, Reading was 4.2 not 5.2 and Chilton 4.4 not 5.4?

(I maxed at 4.0 today and am about 50 miles southwest of Reading) Meteoblue forecast for today was 4.0

The scale must start at zero as that is the value before sunset and rises thereafter. Probably need to contact DEFRA to confirm!

Stay safe at home...

 

 

Hi Roger

I do think Chilton's is hard to believe- it's almost always a fair bit higher than Reading but is a tad further north. I prefer Reading's, and if you scroll back, it ties in well with your readings most of the time, but the station has been inconsistent in publishing data. Reading the scale, Reading's data seems consistent sometimes- and not at others. I think the particular way the graph is presented might be misleading- protection needed is identified at the 2/3 boundary, suggesting this is 3.0. 

That said, the tabulated data is sometimes (not always!) about a half an index point below the graph. The 4th April at Reading would then be 4.7, not 5.2, and certainly not 4.2- it is above the 4/5 boundary. That 4.7 would tie in well with max forecast UV locally; but it still doesn't explain why on numerous occasions, Reading's data, from this very graph, ties in well with other S.UK reports and forecasts.

I still agree with the position that, if there is any measurable UV, then it is within band 1. MetO always forecasts a UV 1 as soon as the sun makes it above the horizon. There is only a zero below that, and no 0.7 etc. I think the truth is, the graph axis may be not a lot of use, other than for health reasons. The safety bands are more important.

Bertie, Itchen Valley.

Remember Finlake!

Offline Bertwhistle  
#634 Posted : 09 April 2020 21:34:55(UTC)
Bertwhistle

Rank: Advanced Member

Joined: 20/11/2015(UTC)
Posts: 6,104
Location: Central Southern England

Reading 5.0

Camborne 5,7

Bertie, Itchen Valley.

Remember Finlake!

Offline Bertwhistle  
#635 Posted : 10 April 2020 14:16:43(UTC)
Bertwhistle

Rank: Advanced Member

Joined: 20/11/2015(UTC)
Posts: 6,104
Location: Central Southern England

Wow! Camborne crosses the 5/6 boundary. 

Bertie, Itchen Valley.

Remember Finlake!

Offline picturesareme  
#636 Posted : 13 April 2020 00:53:07(UTC)
picturesareme

Rank: Advanced Member

Joined: 16/04/2010(UTC)
Posts: 5,047
Location: pompey

First widespread 6's of the season..

 

[/url] [url=https://imgbb.com/]upload jpg

 

Offline Bolty  
#637 Posted : 13 April 2020 13:00:39(UTC)
Bolty

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Joined: 10/06/2016(UTC)
Posts: 2,598
Man
United Kingdom
Location: Failsworth, Manchester - alt: 93m asl

First UVI of 5 here today. We're now at that time of year when, despite it being a chilly day, you can still get badly burnt by the sun.

This is now about the time when I start to tan, but won't be doing much of that today!

Offline Bertwhistle  
#638 Posted : 13 April 2020 13:46:31(UTC)
Bertwhistle

Rank: Advanced Member

Joined: 20/11/2015(UTC)
Posts: 6,104
Location: Central Southern England

Originally Posted by: picturesareme Go to Quoted Post

First widespread 6's of the season..

 

[/url] [url=https://imgbb.com/]upload jpg

 

Still there today pictures, but if anything, Wednesday's 6 forecast has crept further north: as far as Merthyr Tydfil.

https://www.metoffice.gov.uk/public/weather/forecast/map/gcp1by0nd#?map=MaxUVIndex&fcTime=1586908800&zoom=7&lon=-3.42&lat=55.52

5s forecast as far as Berwick on Tweed.

This came slightly out of nowhere apart from the far SW; must be an air quality issue. Interesting to see if it comes off as forecast.

Bertie, Itchen Valley.

Remember Finlake!

Offline picturesareme  
#639 Posted : 13 April 2020 14:50:49(UTC)
picturesareme

Rank: Advanced Member

Joined: 16/04/2010(UTC)
Posts: 5,047
Location: pompey

Originally Posted by: Bertwhistle Go to Quoted Post

 

Still there today pictures, but if anything, Wednesday's 6 forecast has crept further north: as far as Merthyr Tydfil.

https://www.metoffice.gov.uk/public/weather/forecast/map/gcp1by0nd#?map=MaxUVIndex&fcTime=1586908800&zoom=7&lon=-3.42&lat=55.52

5s forecast as far as Berwick on Tweed.

This came slightly out of nowhere apart from the far SW; must be an air quality issue. Interesting to see if it comes off as forecast.

It'll more then likely be lower levels of ozone causing it. Not unusual in spring it would seem.

Offline Bertwhistle  
#640 Posted : 14 April 2020 12:08:34(UTC)
Bertwhistle

Rank: Advanced Member

Joined: 20/11/2015(UTC)
Posts: 6,104
Location: Central Southern England

Still on for a 6 tomorrow according to MetO but the Beeb has dropped that forecast.

MetO range is less- only as far as Andover (Hants) but with extent for 5s still as good.

3 stations in Cornwall forecast a 6 today.

Bertie, Itchen Valley.

Remember Finlake!

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