This is Isabel Friday morning. Note the multiple votices.

http://home.alltel.net/jk73946/Graph...15Z_Isabel.gif

Jim

On Sat, 13 Sep 2003 03:31:25 -0500, Mike1
wrote:

In article .com,
Jim wrote:

http://home.alltel.net/jk73946/Graph...15Z_Isabel.gif


That reminds me; TWC was agog over new 250m resolutions. Anyone have an
URL for any on the net?


Being able to see 250 meter thick vertical layers in water vapor would
be real helpful right about now. Found a useless research link but
no publicly available images.

http://www.arm.gov/docs/research/vap...s/mwrprof.html

Do you think the 8k res water vapor images are outlining the steering
ridge accurately?

On Sat, 13 Sep 2003 03:34:15 GMT, Jim wrote:

This is Isabel Friday morning. Note the multiple votices.

http://home.alltel.net/jk73946/Graph...15Z_Isabel.gif

What an impressive image! This is probably an extremely dumb question
by a layperson, but after seeing this I've got to ask: why are there
vortices in the eye? I thought that was supposed to always be clear.

Barb

wrote:
Barb Beier
On Sat, 13 Sep 2003 03:34:15 GMT, Jim wrote:

This is Isabel Friday morning. Note the multiple votices.
http://home.alltel.net/jk73946/Graph...15Z_Isabel.gif

What an impressive image! This is probably an extremely dumb question
by a layperson, but after seeing this I've got to ask: why are there
vortices in the eye? I thought that was supposed to always be clear.

At that time there were two eyewalls, an inner eyewall and the larger
outer eyewall. The inner eyewall and the outer eyewall were rotating
at different speeds. The vortices apparantly formed and acted like
like roller bearings between the two core walls.


This is incorrect (those vortices would not be visible as they'd be
underneath the "doughnut" od the CDO); the vortices being referred to
are eddy patterns between strong eyewall winds and a calm center,
visible in the low cumulus of the eye itself. Yesterday there were five
of them in a starfish pattern; today there are four.

I believe these eye vortices are a manifestation similar to those in
multi-vortex tornados: There is a maximum rate at which a single vortex
can process air, so if atmospheric conditions enable the formation of a
storm more powerful than a single one can "service", the storm will
develop several rotating around a common center.

--

Reply to sans two @@, or your reply won't reach me.

"An election is nothing more than an advance auction of stolen goods."
-- Ambrose Bierce

Jim wrote in message tnews.com...
This is Isabel Friday morning. Note the multiple votices.

http://home.alltel.net/jk73946/Graph...15Z_Isabel.gif

Jim

That's an awesome looking eye. That has to be at least 50 miles in
diameter! The six little vortices form a perfect pentagon around the
center. A smaller eye would probably be slightly more favorable for
peak intensity though. It still hasn't weakened one bit though.

The six little vortices form a perfect pentagon around the
center.

Er, wouldn't there be a hexagon, if there were six vortices?

No, see Roller-bearing idea ... one in center, and 5 around.



--
/"\ Bill Ricker N1VUX
\ / http://world.std.com/~wdr/
X Member of the ASCII Ribbon Campaign Against HTML Mail
/ \

William Ricker wrote in message ...
The six little vortices form a perfect pentagon around the
center.

Er, wouldn't there be a hexagon, if there were six vortices?

No, see Roller-bearing idea ... one in center, and 5 around.

I just made some rough calculations about the windspeed in the eyewall
using the figure from the National Hurricane Center that the eye has a
diameter of 40 nautical miles and by estimation of the speed of the
rotation of features within the eye. I get 160 knots.

Allan

Jim wrote:

On Sat, 13 Sep 2003 14:05:32 GMT, wrote:

On Sat, 13 Sep 2003 03:31:25 -0500, Mike1
wrote:

In article .com,
Jim wrote:

http://home.alltel.net/jk73946/Graph...15Z_Isabel.gif


That reminds me; TWC was agog over new 250m resolutions. Anyone have an
URL for any on the net?


Being able to see 250 meter thick vertical layers in water vapor would
be real helpful right about now. Found a useless research link but
no publicly available images.

http://www.arm.gov/docs/research/vap...s/mwrprof.html

Do you think the 8k res water vapor images are outlining the steering
ridge accurately?

Here is a 250m res Terra image, just a couple of hours later

http://rapidfire.sci.gsfc.nasa.gov/g....1500.250m.jpg

THIS IMAGE IS BIG!!!
Jim

OK, I'm impressed. That was worth the 10+ minute download. Thanks.

Regards,
Russell

Jim wrote in message tnews.com...
On Sat, 13 Sep 2003 14:05:32 GMT, wrote:

On Sat, 13 Sep 2003 03:31:25 -0500, Mike1
wrote:

In article .com,
Jim wrote:

http://home.alltel.net/jk73946/Graph...15Z_Isabel.gif


That reminds me; TWC was agog over new 250m resolutions. Anyone have an
URL for any on the net?


Being able to see 250 meter thick vertical layers in water vapor would
be real helpful right about now. Found a useless research link but
no publicly available images.

http://www.arm.gov/docs/research/vap...s/mwrprof.html

Do you think the 8k res water vapor images are outlining the steering
ridge accurately?


Here is a 250m res Terra image, just a couple of hours later

http://rapidfire.sci.gsfc.nasa.gov/g....1500.250m.jpg

I wouldn't download this unlass you have a lot bandwidth and ram.

That was huge. Unfortunately I could only view it once, and I didn't
finish exploring the whole image. You could get lost in it. When I
tried to open it from another folder the hard drive started working
like mad and everything hung up. I waited 20 minutes for the thing to
load before giving up. I only have 128 megs of ram.

The eye appears to be contracting as we approach 1am EST Sunday night,
and looks like it will track w-wnw directly over a 25N/70W plot-point.

The entire storm is over 84F water now.

--

Reply to sans two @@, or your reply won't reach me.

"An election is nothing more than an advance auction of stolen goods."
-- Ambrose Bierce