On Tuesday, 9 December 2014 15:15:08 UTC, wrote:
"Richard Dixon" wrote in message
...
Ye Gods. That's this winter's buzzword sorted. Come in Polar Vortex, your
time is up. Move over The Beast From The East.

I wonder if anyone trumpeting this new word dare try and explain what 1
bergeron is to the public?


I call it the "pest from the west" .

Weather bomb indeed, just a plain old fashioned fast deepening low, nothing
to get *that* excited about.

Judging by the fronts shown on the midnight chart this morning it could push through the two "highs" either side of the Atlantic and that would allow for tonadoes. Looks like it has mice in them too.
So earthquakes as well as tornadoes but then with all those thundery things running up the coast of Europe I think volcanic eruptions will be shouting from the mountaintops.

Looks like hell on wheels.
Or interesting, at least.

On Tue, 9 Dec 2014 18:09:20 -0000, "Togless"
wrote:

It certainly looks quite lively out there in the Atlantic..

It's been quite lively here today. Max gust of 43mph and 22.4mm since
00:00 making a total for the month so far of 81.2mm and so far for the
year of 1999.2mm.

The CF went through at about 15:30 and the temperature has fallen from
10.3°C to 5.1°C and still falling. Currently gusting to 30mph.

--
Alan White
Mozilla Firefox and Forte Agent.
By Loch Long, twenty-eight miles NW of Glasgow, Scotland.
Webcam and weather:- http://windycroft.co.uk/weather

Graham Easterling wrote:

On Tuesday, December 9, 2014 6:09:21 PM UTC, Togless wrote:
"Malcolm" wrote (quoting the Daily Express, I think):

"The deepest and most powerful low pressure system for A CENTURY
is currently hurtling towards the west coast where mammoth 50-ft
waves threaten mayhem."

Are they claiming that it's already the deepest and most powerful low
pressure system for a century (which should be easy enough to verify or
refute), or just that they expect it to be?

It certainly looks quite lively out there in the Atlantic...

Whilst 50' waves are very large, they occur in the north Atlantic every
winter. In fact 60' waves have been surfed in Ireland & Portugal.


It depends, of course, on whether we're talking about significant wave height
(which is the usual way to describe the sea state) or the maximum wave height.

Down the more exposed parts of the west coast of the British Isles the once in
50 year extreme significant wave height is around 16 metres (about 52 feet) so
this would be a rare occurrence . West Cornwall is a little lower with 14
metres (about 46 feet). However, with a significant wave height of 16 metres
the highest occasional individual waves would be 27-30 metres (around 90-100
feet).

So, if we are talking about 50 feet as a significant wave height around the
west coast of the British Isles this would be a rare and very notable
occurrence but if we are talking about a maximum wave height then it would not
be a notable occurrence.


--
Norman Lynagh
Tideswell, Derbyshire
303m a.s.l.
http://peakdistrictweather.org

Graham P Davis wrote:

On Tue, 9 Dec 2014 18:09:20 -0000
"Togless" wrote:

"Malcolm" wrote (quoting the Daily Express, I think):

"The deepest and most powerful low pressure system for A CENTURY
is currently hurtling towards the west coast where mammoth 50-ft
waves threaten mayhem."

Are they claiming that it's already the deepest and most powerful
low pressure system for a century (which should be easy enough to
verify or refute), or just that they expect it to be?


I knew I was getting old but seem to be getting forgetful too. If
that piddling little depression is the deepest for a century and I
remember lots deeper than this, where'd my telegram from the queen go?

There was one that I can remember 20 or 30 years ago that got below 920 mb SW
of Iceland. I think that one holds the record.

Stephen Burt has done some research in this field that was published in
'Weather'

--
Norman Lynagh
Tideswell, Derbyshire
303m a.s.l.
http://peakdistrictweather.org

Norman wrote:

Graham P Davis wrote:

On Tue, 9 Dec 2014 18:09:20 -0000
"Togless" wrote:

"Malcolm" wrote (quoting the Daily Express, I think):

"The deepest and most powerful low pressure system for A CENTURY
is currently hurtling towards the west coast where mammoth 50-ft
waves threaten mayhem."

Are they claiming that it's already the deepest and most powerful
low pressure system for a century (which should be easy enough to
verify or refute), or just that they expect it to be?


I knew I was getting old but seem to be getting forgetful too. If
that piddling little depression is the deepest for a century and I
remember lots deeper than this, where'd my telegram from the queen go?

There was one that I can remember 20 or 30 years ago that got below 920 mb SW
of Iceland. I think that one holds the record.

Stephen Burt has done some research in this field that was published in
'Weather'


It was January 1993 to SE of Iceland. See the following

http://onlinelibrary.wiley.com/doi/1...854.x/abstract

--
Norman Lynagh
Tideswell, Derbyshire
303m a.s.l.
http://peakdistrictweather.org

On Tuesday, December 9, 2014 7:21:02 PM UTC, Norman wrote:
Graham Easterling wrote:

On Tuesday, December 9, 2014 6:09:21 PM UTC, Togless wrote:
"Malcolm" wrote (quoting the Daily Express, I think):

"The deepest and most powerful low pressure system for A CENTURY
is currently hurtling towards the west coast where mammoth 50-ft
waves threaten mayhem."

Are they claiming that it's already the deepest and most powerful low
pressure system for a century (which should be easy enough to verify or
refute), or just that they expect it to be?

It certainly looks quite lively out there in the Atlantic...

Whilst 50' waves are very large, they occur in the north Atlantic every
winter. In fact 60' waves have been surfed in Ireland & Portugal.


It depends, of course, on whether we're talking about significant wave height
(which is the usual way to describe the sea state) or the maximum wave height.

Down the more exposed parts of the west coast of the British Isles the once in
50 year extreme significant wave height is around 16 metres (about 52 feet) so
this would be a rare occurrence . West Cornwall is a little lower with 14
metres (about 46 feet). However, with a significant wave height of 16 metres
the highest occasional individual waves would be 27-30 metres (around 90-100
feet).

So, if we are talking about 50 feet as a significant wave height around the
west coast of the British Isles this would be a rare and very notable
occurrence but if we are talking about a maximum wave height then it would not
be a notable occurrence.


--
Norman Lynagh
Tideswell, Derbyshire
303m a.s.l.
http://peakdistrictweather.org

I assumed from the wording, rightly or wrongly, that it was the maximum wave height that was being referred to.

Dramatic Video of recent 60' reef break surfing in Portugal https://www.youtube.com/watch?v=lFyp1o9CAvs (You can skip the Ad)

Move the decimal point to the left, and 6' is still big as far as I'm concerned, these men are clearly mad!

Graham

Graham Easterling wrote:

On Tuesday, December 9, 2014 7:21:02 PM UTC, Norman wrote:
Graham Easterling wrote:

On Tuesday, December 9, 2014 6:09:21 PM UTC, Togless wrote:
"Malcolm" wrote (quoting the Daily Express, I think):

"The deepest and most powerful low pressure system for A CENTURY
is currently hurtling towards the west coast where mammoth 50-ft
waves threaten mayhem."

Are they claiming that it's already the deepest and most powerful low
pressure system for a century (which should be easy enough to verify or
refute), or just that they expect it to be?

It certainly looks quite lively out there in the Atlantic...

Whilst 50' waves are very large, they occur in the north Atlantic every
winter. In fact 60' waves have been surfed in Ireland & Portugal.


It depends, of course, on whether we're talking about significant wave
height (which is the usual way to describe the sea state) or the maximum
wave height.

Down the more exposed parts of the west coast of the British Isles the once
in 50 year extreme significant wave height is around 16 metres (about 52
feet) so this would be a rare occurrence . West Cornwall is a little lower
with 14 metres (about 46 feet). However, with a significant wave height of
16 metres the highest occasional individual waves would be 27-30 metres
(around 90-100 feet).

So, if we are talking about 50 feet as a significant wave height around the
west coast of the British Isles this would be a rare and very notable
occurrence but if we are talking about a maximum wave height then it would
not be a notable occurrence.


--
Norman Lynagh
Tideswell, Derbyshire
303m a.s.l.
http://peakdistrictweather.org

I assumed from the wording, rightly or wrongly, that it was the maximum wave
height that was being referred to.

Dramatic Video of recent 60' reef break surfing in Portugal
https://www.youtube.com/watch?v=lFyp1o9CAvs (You can skip the Ad)

Move the decimal point to the left, and 6' is still big as far as I'm
concerned, these men are clearly mad!

Graham



The guys on the jet-skis were playing an interesting game of 'chicken', too

--
Norman Lynagh
Tideswell, Derbyshire
303m a.s.l.
http://peakdistrictweather.org

"Norman" wrote in
:

On the news on Classic FM today I heard the term 'rapid cyclogenesis'
being used. Well done to them, or to the journalists at Global Radio
who prepare the bulletins for Classic. They must be listening to
someone sensible. Not sure what Joe Public would make of it, though.

It was hosing down at half time at the latest chapter of Liverpool's woeful
season and Adrian Chiles referred to it as the Weather Bomb. Yep, it's
firmly entrenched in popular culture.

Richard

"Norman" wrote in
:

There was one that I can remember 20 or 30 years ago that got below
920 mb SW of Iceland. I think that one holds the record.

Stephen Burt has done some research in this field that was published
in 'Weather'

Oddly enough there was a thread on this a couple of days over 10 days ago -
well deepening rates anyway, but related to a certain extent:

http://www.weather-banter.co.uk/uk-s...-weather/9336-
extratropical-storms-record-deepening-rates.html

Richard

On Tuesday, December 9, 2014 8:15:15 PM UTC, Norman wrote:
Graham Easterling wrote:

On Tuesday, December 9, 2014 7:21:02 PM UTC, Norman wrote:
Graham Easterling wrote:

On Tuesday, December 9, 2014 6:09:21 PM UTC, Togless wrote:
"Malcolm" wrote (quoting the Daily Express, I think):

"The deepest and most powerful low pressure system for A CENTURY
is currently hurtling towards the west coast where mammoth 50-ft
waves threaten mayhem."

Are they claiming that it's already the deepest and most powerful low
pressure system for a century (which should be easy enough to verify or
refute), or just that they expect it to be?

It certainly looks quite lively out there in the Atlantic...

Whilst 50' waves are very large, they occur in the north Atlantic every
winter. In fact 60' waves have been surfed in Ireland & Portugal.


It depends, of course, on whether we're talking about significant wave
height (which is the usual way to describe the sea state) or the maximum
wave height.

Down the more exposed parts of the west coast of the British Isles the once
in 50 year extreme significant wave height is around 16 metres (about 52
feet) so this would be a rare occurrence . West Cornwall is a little lower
with 14 metres (about 46 feet). However, with a significant wave height of
16 metres the highest occasional individual waves would be 27-30 metres
(around 90-100 feet).

So, if we are talking about 50 feet as a significant wave height around the
west coast of the British Isles this would be a rare and very notable
occurrence but if we are talking about a maximum wave height then it would
not be a notable occurrence.


--
Norman Lynagh
Tideswell, Derbyshire
303m a.s.l.
http://peakdistrictweather.org

I assumed from the wording, rightly or wrongly, that it was the maximum wave
height that was being referred to.

Dramatic Video of recent 60' reef break surfing in Portugal
https://www.youtube.com/watch?v=lFyp1o9CAvs (You can skip the Ad)

Move the decimal point to the left, and 6' is still big as far as I'm
concerned, these men are clearly mad!

The guys on the jet-skis were playing an interesting game of 'chicken', too

--
Norman Lynagh
Tideswell, Derbyshire
303m a.s.l.
http://peakdistrictweather.org

The jet skis are used both to tow the surfers out, and for rescue. Alan may remember jet skis towing surfers out at Porthcurno (well Pedne-Vounder to be exact ) during our RIB ride in rather a large swell, including a bumpy ride across the Bay from Perranuthnoe.

Graham