Milder air has flooded into the Isle of Man during this afternoon and
evening.

Low this morning 1.5C, currently 10.4C and still rising.
--


Jim

On Wednesday, 13 February 2013 20:39:58 UTC, Jim Kewley wrote:
Milder air has flooded into the Isle of Man during this afternoon and

evening.



Low this morning 1.5C, currently 10.4C and still rising.

--





Jim

Hey Jim -if you was thinking of taking advantage of the SH summer avoid sailing the Anarctic as record levels of ice there for this time of year since measurements were taken.

In message ,
Lawrence13 writes

Hey Jim -if you was thinking of taking advantage of the SH summer avoid
sailing the Anarctic as record levels of ice there for this time of
year since measurements were taken.

Jeepers that's my idea of hell. Always make a point of keeping north of
35S when on our rare ventures into southern latitudes.

--


Jim

On Wednesday, 13 February 2013 23:56:25 UTC, Jim Kewley wrote:
In message ,

Lawrence13 writes



Hey Jim -if you was thinking of taking advantage of the SH summer avoid

sailing the Anarctic as record levels of ice there for this time of

year since measurements were taken.



Jeepers that's my idea of hell. Always make a point of keeping north of

35S when on our rare ventures into southern latitudes.



--





Jim

You always did have a latitude problem. But seriously the Southern oceans seem to me some real challenge for sailors. Is it purely the fact it all fairly flat sea which allows winds to howl unabated or more than that?

In message ,
Lawrence13 writes

You always did have a latitude problem. But seriously the Southern
oceans seem to me some real challenge for sailors. Is it purely the
fact it all fairly flat sea which allows winds to howl unabated or more
than that?

The Southern Ocean is sailing's great challenge, you are correct in
thinking it's because the waves are free to roar unhindered round the
planet.

Waves, the big danger, can build to enormous heights. Even in my younger
days, and pre-bad back, there's no way I'd have ventured into the
Southern Ocean with a 40 foot yacht. Nonetheless there's people who do
it in cruising boats.

--


Jim

On Wed, 13 Feb 2013 at 16:14:04, Lawrence13 wrote
in uk.sci.weather :

You always did have a latitude problem.



But seriously the Southern oceans seem to me some real challenge for
sailors. Is it purely the fact it all fairly flat sea which allows
winds to howl unabated or more than that?

Surely howling winds are incompatible with flat seas?
--
Paul Hyett, Cheltenham (change 'invalid83261' to 'blueyonder' to email me)

In article ,
Jim Kewley writes:
In message bf2d32ce-b665-48a2-a4bf-9783410ed3cc@googlegroup
s.com, Lawrence13 writes

You always did have a latitude problem. But seriously the
Southern oceans seem to me some real challenge for sailors. Is it
purely the fact it all fairly flat sea which allows winds to howl
unabated or more than that?

The Southern Ocean is sailing's great challenge, you are correct in
thinking it's because the waves are free to roar unhindered round
the planet.
snip

I think it might also be because with almost no land there's no scope
for major winter anticyclones like we see in Siberia every winter, and
thus nothing to disrupt the Jet Stream. There might also be a steeper
thermal gradient close to Antarctica than what we see in the Northern
Hemisphere, which might lead to deeper lows and hence stronger winds.
--
John Hall

"Whenever people agree with me I always feel I must be wrong."
Oscar Wilde

On Thursday, 14 February 2013 00:37:56 UTC, Jim Kewley wrote:
In message ,

Lawrence13 writes



You always did have a latitude problem. But seriously the Southern

oceans seem to me some real challenge for sailors. Is it purely the

fact it all fairly flat sea which allows winds to howl unabated or more

than that?



The Southern Ocean is sailing's great challenge, you are correct in

thinking it's because the waves are free to roar unhindered round the

planet.



Waves, the big danger, can build to enormous heights. Even in my younger

days, and pre-bad back, there's no way I'd have ventured into the

Southern Ocean with a 40 foot yacht. Nonetheless there's people who do

it in cruising boats.



--





Jim

Well Russell Crow did it in Master and Commander

In message , John Hall
writes

The Southern Ocean is sailing's great challenge, you are correct in
thinking it's because the waves are free to roar unhindered round
the planet.
snip

I think it might also be because with almost no land there's no scope
for major winter anticyclones like we see in Siberia every winter, and
thus nothing to disrupt the Jet Stream. There might also be a steeper
thermal gradient close to Antarctica than what we see in the Northern
Hemisphere, which might lead to deeper lows and hence stronger winds.

That certainly makes good sense to me. My limited knowledge of the
Southern Ocean has been gleaned from sailing books and sailor's
experiences down there. The big concern of sailors in those waters are
the massive waves which can occur. Waves, like the weather, run
unhindered with nothing to sap their latent energy.
--


Jim

On 14/02/13 07:37, Paul Hyett wrote:
On Wed, 13 Feb 2013 at 16:14:04, Lawrence13 wrote
in uk.sci.weather :

You always did have a latitude problem.



But seriously the Southern oceans seem to me some real challenge for
sailors. Is it purely the fact it all fairly flat sea which allows
winds to howl unabated or more than that?

Surely howling winds are incompatible with flat seas?

I think he means there are no fixed vertical obstructions to the wind to
increase the surface drag or in other words, the roughness length is
very low.