Identify Eyewall Replacement Cycles

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StormScanWx
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Identify Eyewall Replacement Cycles

#1 Postby StormScanWx » Tue May 16, 2006 6:25 pm

Anyone here at S2K care to give me a crash course on how to identify EWRCs?
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Jim Cantore

#2 Postby Jim Cantore » Tue May 16, 2006 6:36 pm

Image

NOTE: The gap in the SW eyewall[/img]
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CHRISTY

#3 Postby CHRISTY » Tue May 16, 2006 6:38 pm

Hope this helps!

http://thestormtrack.com/archives/2005/07/what_is_eyewall.html
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#4 Postby Normandy » Tue May 16, 2006 8:51 pm

http://www.wunderground.com/hurricane/h ... entric.gif

Emily had double eyewalls.
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Jim Cantore

#5 Postby Jim Cantore » Tue May 16, 2006 8:52 pm

So did Katrina and Rita and Ivan
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#6 Postby milankovitch » Tue May 16, 2006 9:31 pm

Here is Wilma undergoing an EWRC. Look for an outer eyewall to form and a moat (empty space) to develope between the the two eyewalls.

http://cimss.ssec.wisc.edu/tropic/real- ... hr_05.html
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Re: Identify Eyewall Replacement Cycles

#7 Postby Derecho » Wed May 17, 2006 2:14 pm

StormScanWx wrote:Anyone here at S2K care to give me a crash course on how to identify EWRCs?


Probably the most important thing to know is that they take a good amount of time...absolute minimum 12 hours, and usually more like 18-24 hours.

People proclaim FAR too many of them and often claim they're occuring a couple hours apart..."EWRC" has become one of those catchphrases people toss around without really completely understanding them.

Also another problem is ALL weakening of any hurricane is attributed to EWRCs.....which obviously is not the case; what seems to drive it is people disappointed in a storm that's weakening due to shear, dry air, etc. and proclaiming a mythical EWRC allows them to kid themselves it's going to quickly restrengthen.
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#8 Postby JonathanBelles » Wed May 17, 2006 2:42 pm

is a ERC and a EWRC the same? is one more correct?
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#9 Postby terstorm1012 » Wed May 17, 2006 2:54 pm

milankovitch wrote:Here is Wilma undergoing an EWRC. Look for an outer eyewall to form and a moat (empty space) to develope between the the two eyewalls.

http://cimss.ssec.wisc.edu/tropic/real- ... hr_05.html


Excellent example, IMO.
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#10 Postby Recurve » Wed May 17, 2006 7:55 pm

milankovitch wrote:Here is Wilma undergoing an EWRC. Look for an outer eyewall to form and a moat (empty space) to develope between the the two eyewalls.

http://cimss.ssec.wisc.edu/tropic/real- ... hr_05.html



That is a FANtastic loop. Tiny eye, new eyewall forming, eye filling then clearing out.
Great link!
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