On Sat, 27 Sep 2014 16:48:48 +0100
"ron button" wrote:


"Dawlish" wrote in message
...
New research backs UKMO's ideas and the theories of others, but, as
always in science, nothing is certain (Gavin Schmidt).

"The Arctic is warming twice as fast as the rest of the planet, an
effect enhanced when the sea ice that normally cools the Arctic air
melts away. Because of this, the air currents that come from that
region are getting disproportionately warmer too, narrowing the
temperature difference between the Arctic and southerly winds, and
thereby weakening the jet stream itself. "The winds have weakened by
10 per cent over the past three decades in the west-to-east wind of
the jet stream,"

http://www.newscientist.com/article/...l#.VCbNar40Pwx

Is that why there are no hurricanes this year ?


Not sure what you mean by "no" hurricanes as there have been four so far
this season.

Although an El Nino isn't officially present as yet, conditions are
close enough to adversely affect Atlantic hurricane activity. Also,
incipient storms have been killed off by dry, dusty, Saharan air.

--
Graham P Davis, Bracknell, Berks. Mail: 'newsman' not 'newsboy'.
"Minds are like parachutes. They only function when they're open". -
Lord Dewar (1864-1930)

On Sat, 27 Sep 2014 17:31:08 +0100, Graham P Davis
wrote:
Although an El Nino isn't officially present as yet, conditions are
close enough to adversely affect Atlantic hurricane activity. Also,
incipient storms have been killed off by dry, dusty, Saharan air.

Not to mention too much wind shear also...

--
Freddie
Pontesbury
Shropshire
102m AMSL
http://www.hosiene.co.uk/weather/
http://twitter.com/PontesburyWx for hourly reports

On Saturday, 27 September 2014 17:31:08 UTC+1, Graham P Davis wrote:
On Sat, 27 Sep 2014 16:48:48 +0100

"ron button" wrote:





"Dawlish" wrote in message

...

New research backs UKMO's ideas and the theories of others, but, as

always in science, nothing is certain (Gavin Schmidt).



"The Arctic is warming twice as fast as the rest of the planet, an

effect enhanced when the sea ice that normally cools the Arctic air

melts away. Because of this, the air currents that come from that

region are getting disproportionately warmer too, narrowing the

temperature difference between the Arctic and southerly winds, and

thereby weakening the jet stream itself. "The winds have weakened by

10 per cent over the past three decades in the west-to-east wind of

the jet stream,"



http://www.newscientist.com/article/...l#.VCbNar40Pwx



Is that why there are no hurricanes this year ?





Not sure what you mean by "no" hurricanes as there have been four so far

this season.



Although an El Nino isn't officially present as yet, conditions are

close enough to adversely affect Atlantic hurricane activity. Also,

incipient storms have been killed off by dry, dusty, Saharan air.



--

Graham P Davis, Bracknell, Berks. Mail: 'newsman' not 'newsboy'.

"Minds are like parachutes. They only function when they're open". -

Lord Dewar (1864-1930)

I take it Graham you think the weather is "crazier"?

On Sat, 27 Sep 2014 17:51:14 +0100
Freddie wrote:

On Sat, 27 Sep 2014 17:31:08 +0100, Graham P Davis
wrote:
Although an El Nino isn't officially present as yet, conditions are
close enough to adversely affect Atlantic hurricane activity. Also,
incipient storms have been killed off by dry, dusty, Saharan air.

Not to mention too much wind shear also...


Yes, that's the sub-El Nino.

--
Graham P Davis, Bracknell, Berks. Mail: 'newsman' not 'newsboy'.
"Minds are like parachutes. They only function when they're open". -
Lord Dewar (1864-1930)