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Retron
Sunday, June 18, 2017 7:32:23 AM


I think I can make out 10 locations forecasting a 9 in your map, Darren. Is the ozone gone, do you think?


In fact, I've just selected the BBC forecast for Falmouth. It has all the visual irony of the kingfisher on the 'no fishing' sign: it says 'UV9' and immediately underneath 'UK range 1-8'.


Originally Posted by: Bertwhistle 


It's clearly right on the borderline between 8 and 9 today, as the 7 AM update only has 4 "9s" in the same area as that map I posted.


And yes, it looks like it low ozone levels aloft are partly the cause:


http://www.temis.nl/uvradiation/nrt/uvindex.php?lon=-0.07&lat=51.30


You can enter your own lattitude / longitude figures to get the ozone levels for any area, btw. So for Falmouth, you get:


http://www.temis.nl/uvradiation/nrt/uvindex.php?lon=-5.07&lat=50.15


The 21st (Wednesday) is forecast to have low ozone over the south of the UK. I wouldn't be surprised to see the odd 9 pop up on the forecast nearer the time!


Leysdown, north Kent
Bertwhistle
Sunday, June 18, 2017 4:12:23 PM

7.8 today


Bertie, Itchen Valley.
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Bertwhistle
Monday, June 19, 2017 6:04:26 PM

7.1 today in Reading but 8.5 in Camborne. The air's more humid now.


Bertie, Itchen Valley.
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Bertwhistle
Tuesday, June 20, 2017 9:31:58 PM

7.3 today.


Bertie, Itchen Valley.
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Bertwhistle
Wednesday, June 21, 2017 6:09:29 PM

6.8; hazier, more humid.


Bertie, Itchen Valley.
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picturesareme
Friday, June 23, 2017 11:53:54 AM
Hit 8.3 already today - that's the highest for a number of days now.
Bertwhistle
Friday, June 23, 2017 4:07:35 PM

Hit 8.3 already today - that's the highest for a number of days now.

Originally Posted by: picturesareme 


Yes, and a 7.6 in Reading so possibly an 8 here at a push. That's getting rid of all that humidity. The Reading graph is spiky, with the sun in-and-out. How was the coastal graph Pictures? I haven't looked at the satellites yet so not sure if you had a sunny day.


Bertie, Itchen Valley.
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Retron
Friday, June 23, 2017 5:33:48 PM

Impressive amounts of ozone are in the forecast - and the UV index plummets as a result. A peak of 6.1 under clear skies in late June would be quite remarkable.

http://www.temis.nl/uvradiation/nrt/uvindex.php?lon=-0.07&lat=51.30

London

Date UV
index ozone
column
23 Jun 2017 7.6 310.9 DU
24 Jun 2017 7.7 308.1 DU
25 Jun 2017 7.4 317.9 DU
26 Jun 2017 7.0 328.4 DU
27 Jun 2017 6.3 358.4 DU
28 Jun 2017 6.1 365.2 DU


Leysdown, north Kent
Bertwhistle
Monday, June 26, 2017 7:32:20 PM

24 June: only 4.9


25 June: 5.0


26 June: back up to 7.8.


Bertie, Itchen Valley.
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Bertwhistle
Wednesday, June 28, 2017 6:17:04 PM

3.7 yesterday and 3.2 today. Not far off the seasonal zenith, these are the lowest readings at Reading for a while. This reflects the high UV and great sunshine we've had- not just quantifiable by hours of sunshine.


Bertie, Itchen Valley.
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Bertwhistle
Friday, June 30, 2017 5:12:15 PM

3.5 yesterday, 5.0 today (Reading). Still time for some 8s in the south in the next fortnight. Then we can watch the numbers slip down, although expect 6s potentially through most of August.


Bertie, Itchen Valley.
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Bertwhistle
Sunday, July 2, 2017 5:40:14 PM

5.1 yesterday; 7.2 today.


Bertie, Itchen Valley.
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Bertwhistle
Monday, July 3, 2017 5:43:33 PM

5.7 there. Higher here this afternoon.


Bertie, Itchen Valley.
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Bertwhistle
Thursday, July 6, 2017 7:55:15 PM

6.3, 6.7, 6.2 over the last three days. Good run of sixes but I feel the top numbers are slipping away again.


Bertie, Itchen Valley.
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Bertwhistle
Saturday, July 8, 2017 12:41:12 PM

7.5 yesterday. Slow to get going today in Reading, but strong sunshine here.


Bertie, Itchen Valley.
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Bertwhistle
Saturday, July 8, 2017 4:39:52 PM

7.3 finish for Reading


 


Bertie, Itchen Valley.
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Bertwhistle
Tuesday, July 11, 2017 5:38:22 PM

6.7, 6.3, 3.1 for the last 3 days. Impressive that Reading managed a 3.1 under this!


Bertie, Itchen Valley.
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Bertwhistle
Monday, July 17, 2017 6:04:16 PM

Several dull days but 6.8 today- I noticed the RH was down this afternoon.


Bertie, Itchen Valley.
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Bertwhistle
Tuesday, July 18, 2017 7:07:09 PM

6.6 today .....earlier than now, obviously!


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forestedge
Tuesday, July 18, 2017 7:44:47 PM

Maxed at 6.8 here today at 1400.


Roger
Ashurst Bridge (New Forest)
9m ASL
https://www.newforestweather.co.uk 
Bertwhistle
Wednesday, July 19, 2017 6:35:07 PM


Maxed at 6.8 here today at 1400.


Originally Posted by: forestedge 


That seems right Roger- 6.7 in Reading.


4.0 today.


Bertie, Itchen Valley.
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Bertwhistle
Monday, August 7, 2017 6:28:15 AM

Reading reached 6.3 yesterday but an amazing (for August) 7.6 on Saturday!


Edit: looking back that's the highest since 26th June.


Bertie, Itchen Valley.
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Retron
Monday, August 7, 2017 6:58:42 AM


Reading reached 6.3 yesterday but an amazing (for August) 7.6 on Saturday!


Originally Posted by: Bertwhistle 


Tell me about it - I was out in the fields with the wolves and (between thunderstorms) the sun was searing... the day itself wasn't hot, but boy that sun was strong. The wolves were panting and we handlers were sweating our unmentionables off, as we we were all wearing coats. (And there was a corker of a storm towards the end of the walk as well, booming thunder all around. The wolves, incidentally, weren't at all bothered!)


Still, with the sun losing 0.3° in altitude a day the UV index should decline quite quickly now.


Leysdown, north Kent
Bertwhistle
Friday, August 25, 2017 9:14:29 AM

Worth noting that locally factor 6 is forecast from today until Monday. So late in the summer for a 4 day run like this- remember, the sun is only as high as in mid April over the next few days, and 6 is a rare call then. In fact 6 wasn't breached at Reading this year until 11th May.


So make the most of a good tanning/ vit D spell.


Bertie, Itchen Valley.
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Bertwhistle
Tuesday, August 29, 2017 7:10:04 PM

Last 3 days (including today) 5.4, 5.4, 5.0 at Reading. So close to 6 each day on the sunny south coast.


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