Eye assumes a square shape on the north, east, and south walls - then collapse just before daylight..   7:45 UTC frame and the next frame. 

http://www.ssd.noaa.gov/PS/TROP/floaters/15L/html5-rgb-long.html

 

 

-------------------------

it's never too late to have a happy childhood...

Edited: 09/24/2017 at 07:17 AM by TONYlookaround

Have you been to PR and Dominica yet to document the measely Cat1 damage from the over-hyped storm?

I fail to see anything in Maria's evolution that is out of the norm for a storm moving north into a higher sheer environment.

-------------------------
...

7:45 UTC 

-------------------------

it's never too late to have a happy childhood...

rectangular eyewalls are normal.  We see the square tornados all the time. 

 

-------------------------

it's never too late to have a happy childhood...

http://www.ssd.noaa.gov/PS/TROP/floaters/15L/html5-rgb-long.html   The frame that lowers the intensity from 3 to 2.

-------------------------

it's never too late to have a happy childhood...

Edited: 09/24/2017 at 07:21 AM by TONYlookaround

Only rectangle on that satellite image is what you imagine and drew on that jpg.

-------------------------
...

 

no highlighter - square eye - category lowers from 3 to 2.  point proven. 

 

-------------------------

it's never too late to have a happy childhood...

Edited: 09/24/2017 at 07:39 AM by TONYlookaround

squareness lowers category

-------------------------

it's never too late to have a happy childhood...

Whatever it is I think I see becomesa tootsie role to me.

-------------------------
...

The eye structure started breaking down well before the 745 UTC imaged on which you are fixating.

-------------------------
...

Be there or be square! "If the wave breaks here, don't be there! Nobody listens to Turtle!"

-------------------------
Life is a garden*Dig it!

S,  you know I'm kidding about squareness being normal.  Man makes squares in the sky, not 120 mph winds.   Just like man makes the square grouper. 

-------------------------

it's never too late to have a happy childhood...

Edited: 09/24/2017 at 01:09 PM by TONYlookaround

Look harder.  hold it in longer too. 

-------------------------

it's never too late to have a happy childhood...

How?

1000s of C130 Missions per hour? That nobody happens to be able to document?

Some top secret energy weapon?

Did you ever find the square in Harvey? Irma? Jose?

Seems in the storms that I've watched over my life that the eye of a storm in decay is often quite out of round. 

-------------------------
...

Somewhat related: Saturn has a giant storm shaped like a hexagon:

Polygonal eyewalls Actually fairly common in intense TCs. The link is to the seminal paper on the subject. Not often noted in weakening TCs although that may be because the eye of a weakening hurricane often becomes cloud filled and the eyewall structure is no longer discernible in satellite images.

-------------------------
"If I say it's safe to surf this beach, captain, then it's safe to surf this beach!"