Just noticed that the Met Office is forecasting 'VERY HIGH' UV for
today. They have an Index of 8 for Sidmouth. I don't think I've seen
that before.

But this leads me to ask why do they think the UV will be high today? I
would have thought tomorrow should be higher but they have the UV down
to 6 for Thursday.

The UV is currently 4.8 (10:33) and about where it was yesterday at this
time. Yesterday's UV peaked at 7.3.

This month's UV high so far was 8.9 on the 2nd. The Met Office missed
that one.

--
Nick Gardner
Otter Valley, Devon
20 m amsl
http://www.ottervalley.co.uk

On Wednesday, June 10, 2015 at 10:42:28 AM UTC+1, Nick Gardner wrote:
Just noticed that the Met Office is forecasting 'VERY HIGH' UV for
today. They have an Index of 8 for Sidmouth. I don't think I've seen
that before.

But this leads me to ask why do they think the UV will be high today? I
would have thought tomorrow should be higher but they have the UV down
to 6 for Thursday.

The UV is currently 4.8 (10:33) and about where it was yesterday at this
time. Yesterday's UV peaked at 7.3.

This month's UV high so far was 8.9 on the 2nd. The Met Office missed
that one.

--
Nick Gardner
Otter Valley, Devon
20 m amsl
http://www.ottervalley.co.uk

It's sunny, it's near the longest day, that's the way they work. Anybody that records or observes UV reading knows the UV forecasts are simply rubbish..

St Martin's Scilly has been over 9 several times this year, always in humid air with high pressure to the south or SW, never to the north. 10 was recorded in patchy sea fog back in May. Today it's reached 7.3, lower than many recent days, in fact lower than the average this month. As it's now 13:30 it's unlikely to little if at all.

One thing that irritated me about yesterday's Spotlight forecast was the statement blandly blaming the wind for the below average temperature, we were told "If it hadn't been windy it would have been in the 20s" Strange it wasn't in the 20s anywhere (officially)yesterday then, plenty of places were sunny & not windy.

My warmest ever May day is 24.4C, very high temperatures don't happen here in May due to cold sea. It last reached 24C on 25th May 2012 when it was windier here than it was yesterday and the wind was from much the same direction, surely the very different source of the air couldn't be the reason?!

I think DBs getting very careless with his throw away generalisations. Just stick to trying to forecast the weather.

Graham
Penzance

On 10/06/2015 13:30, Graham Easterling wrote:
I think DBs getting very careless with his throw away generalisations. Just stick to trying to forecast the weather.

In the end the UV reached 7.1, so a little down on yesterday. We'll see
what tomorrow brings but unless it is overcast all day I reckon that the
Met Office's forecast of 6 will easily be beaten - probably by 10:30 am.

Another day of lengthy spells of scorching sunshine. The humidity was
higher today so that breeze had a softer 'edge' to it. A maximum of
18.8C and over 11.6 hours of sunshine so far.

DB has made some right howlers over the last few months. As you say
Graham, he seems to be very sloppy/careless with his 'facts'.

Monthly sunshine now up to 96 hours. There's been 83 hours in the last 7
days.

--
Nick Gardner
Otter Valley, Devon
20 m amsl
http://www.ottervalley.co.uk

On Wednesday, 10 June 2015 13:30:39 UTC+1, Graham Easterling wrote:
On Wednesday, June 10, 2015 at 10:42:28 AM UTC+1, Nick Gardner wrote:
Just noticed that the Met Office is forecasting 'VERY HIGH' UV for
today. They have an Index of 8 for Sidmouth. I don't think I've seen
that before.

But this leads me to ask why do they think the UV will be high today? I
would have thought tomorrow should be higher but they have the UV down
to 6 for Thursday.

The UV is currently 4.8 (10:33) and about where it was yesterday at this
time. Yesterday's UV peaked at 7.3.

This month's UV high so far was 8.9 on the 2nd. The Met Office missed
that one.

--
Nick Gardner
Otter Valley, Devon
20 m amsl
http://www.ottervalley.co.uk

It's sunny, it's near the longest day, that's the way they work. Anybody that records or observes UV reading knows the UV forecasts are simply rubbish.

St Martin's Scilly has been over 9 several times this year, always in humid air with high pressure to the south or SW, never to the north. 10 was recorded in patchy sea fog back in May. Today it's reached 7.3, lower than many recent days, in fact lower than the average this month. As it's now 13:30 it's unlikely to little if at all.

One thing that irritated me about yesterday's Spotlight forecast was the statement blandly blaming the wind for the below average temperature, we were told "If it hadn't been windy it would have been in the 20s" Strange it wasn't in the 20s anywhere (officially)yesterday then, plenty of places were sunny & not windy.

My warmest ever May day is 24.4C, very high temperatures don't happen here in May due to cold sea. It last reached 24C on 25th May 2012 when it was windier here than it was yesterday and the wind was from much the same direction, surely the very different source of the air couldn't be the reason?!

I think DBs getting very careless with his throw away generalisations. Just stick to trying to forecast the weather.

Graham
Penzance
--------------------------------------------------------------------------------
David Braine (BBC Spotlight SW)knows about cold advection brought by wind speed and direction.
I taught him in the 80's at uni.
I admit he was being simplistic in his statement about the wind and low temperature. I reckon Jo Public knew what he meant even if he did not mention the origin of the air.

Most of the TV weather presenters only tell half truths when it comes to the science. I often cringe myself. A few extra words and people might be educated.
But that is not the purpose of their 2 mins on air.
They just relax and give some generalisations.
Quite silly sometimes.

Len
Wembury
-----------------------------------------------------------------------------

I heard that and thought exactly the same thing as well.

I suppose you could argue that he was thinking that lower wind speed would mean less in the way of wind chill, but he is missing the point, and that is this is a very cold air mass for June and without the strong sunshine it would have been even cooler.

Personally I think David Braine is sitting pretty in a job that will take him through the next 10 or 15 years to retirement, his fellow presenters can't really match him, although they may be nicer to look at! I think its a lot more difficult to get away with a bad forecast to an aircrew than a TV audience. To be fair, he has been good enough to reply to emails that I have sent him on occasion.