Flhurricane.com - Central Florida Hurricane Center - Tracking Storms since 1995Hurricanes Without the Hype! Since 1995

Tropical Storm Watch issued for the Lower and Middle Florida Keys from Key West to W of Channel 5 Bridge, and for the Dry Tortugas #RAFAEL #FLWX

Days since last H. Landfall - US: Any 25 (Milton) , Major: 25 (Milton) Florida - Any: 25 (Milton) Major: 25 (Milton)

NEWS

CURRENT STORMS

ADV#10 11:00 am EDT

Click for Storm Spotlight

ADV#5A 6:00 pm EDT

Click for Storm Spotlight

HypeScale: 4

COMMUNICATION

STORM DATA

CONTENT

FOLLOW US

National Hurricane Center

You are not logged in. [Login]

Other Forums · Search · Active Topics
New user · Who's Online · FAQ · Rules · Calendar

News Talkback >> 2005 News Talkbacks

Clark
Meteorologist

Reged:
Posts: 1710

Re: Steve Gregory's Wunderground blog
Thu Jul 14 2005 10:58 AM

Actually, Terra, you've got it right. The eye is the area of the lowest barometric pressure. The strongest warming in a hurricane is found at upper levels in the eye due to sinking air. In fact, the eye is such a clear region because of the sinking air.

This sinking air is a necessary artifact of hurricanes, in fact; with such strong rising motion in the eyewall (and through the convective mass as well), there must be some compensating sinking motion to maintain balance. Some of this is seen on the outer periphery of the storm, but the majority of this is found within the eye. The sinking causes the air at upper levels to warm -- forced descent is a warming process -- and helps drive the warm-core structure of the cyclone. With all of that heating at upper levels, the strongest response in the hurricane, coincidentally enough, is found at the surface. The response of the storm at the surface is to deepen, leading to increased rising motion and, given favorable surface & upper-air conditions, a feedback cycle upon which the storm can intensify.

The stronger the storm, the stronger the descent within the eye. The need for this descent & the associated warming aloft is the primary reason why you don't ever see the eye contract to a near-zero diameter: if it were to do so, the sinking motion would be cut off, weakening the warming aloft (which in a hurricane is not due to convection), and the pressure would begin to rise. That's why you see eyewall replacement cycles with these storms, as the natural tendency for any eyewall is to contract. The science behind that one is pretty complicated, though (heavy in physical and dynamical meteorology), and I'll leave it for another day.

--------------------
Current Tropical Model Output Plots
(or view them on the main page for any active Atlantic storms!)

Post Extras

Print Post

Remind Me!

Notify Moderator

Entire topic
Subject	Posted by	Posted on
Emily a Hurricane	MikeC	Thu Jul 14 2005 10:58 AM
Re: Emily a Hurricane	Beaumont, TX	Thu Jul 14 2005 11:44 PM
Re: Emily a Hurricane	ralphfl	Thu Jul 14 2005 11:58 PM
Re: Emily a Hurricane	Big Red Machine	Fri Jul 15 2005 01:09 AM
Forecast Track	danielw	Fri Jul 15 2005 01:28 AM
Emily Now a CAT 4	danielw	Fri Jul 15 2005 01:48 AM
Re: Emily Now a CAT 4	ShanaTX	Fri Jul 15 2005 01:53 AM
Re: Emily Now a CAT 4	danielw	Fri Jul 15 2005 02:02 AM
Re: Emily Now a CAT 4	HCW	Fri Jul 15 2005 02:01 AM
Re: Emily Now a CAT 4	ShanaTX	Fri Jul 15 2005 02:03 AM
Re: Emily Now a CAT 4	HCW	Fri Jul 15 2005 02:10 AM
Re: Emily Now a CAT 4	ShanaTX	Fri Jul 15 2005 02:13 AM
Re: Emily Now a CAT 4	CaneTrackerInSoFl	Fri Jul 15 2005 02:16 AM
Re: Emily Now a CAT 4	WeatherNLU	Fri Jul 15 2005 02:25 AM
Re: Emily Now a CAT 4	danielw	Fri Jul 15 2005 02:37 AM
Re: Emily Now a CAT 4	CaneTrackerInSoFl	Fri Jul 15 2005 02:41 AM
Re: Emily Now a CAT 4	jlauderdal	Fri Jul 15 2005 07:18 AM
Dropsondes	danielw	Fri Jul 15 2005 03:04 AM
Re: RECON	HCW	Fri Jul 15 2005 01:49 AM
Re: Emily a Hurricane	ohioaninmiss	Thu Jul 14 2005 11:00 PM
Re: Emily a Hurricane	drcrazibob	Thu Jul 14 2005 11:11 PM
Re: Emily a Hurricane	ohioaninmiss	Thu Jul 14 2005 11:12 PM
Re: Emily a Hurricane	ohioaninmiss	Thu Jul 14 2005 11:09 PM
Re: Emily a Hurricane	Terra	Fri Jul 15 2005 07:23 AM
Re: Emily a Hurricane	firestar_1	Fri Jul 15 2005 07:46 AM
Re: Emily a Hurricane	HCW	Fri Jul 15 2005 10:39 AM
Re: Emily a Hurricane	52255225	Thu Jul 14 2005 11:13 PM
Re: Emily a Hurricane	bn765	Thu Jul 14 2005 11:20 PM
Re: Emily a Hurricane	CaneTrackerInSoFl	Thu Jul 14 2005 11:33 PM
Re: Emily a Hurricane	Ryan	Thu Jul 14 2005 11:39 PM
Re: Emily a Hurricane	bn765	Thu Jul 14 2005 11:36 PM
Re: Emily a Hurricane	scottsvb	Thu Jul 14 2005 11:37 PM
Re: Emily a Hurricane	jaxmike	Thu Jul 14 2005 10:52 PM
Re: Emily a Hurricane	Tazmanian93	Thu Jul 14 2005 11:00 PM
Re: Emily a Hurricane	Beaumont, TX	Thu Jul 14 2005 02:20 PM
Re: Emily a Hurricane	drcrazibob	Thu Jul 14 2005 02:27 PM
Re: Emily a Hurricane	ShanaTX	Thu Jul 14 2005 02:46 PM
Playa del carmen/Emily	ftlaudbob	Thu Jul 14 2005 02:49 PM
Re: Playa del carmen/Emily	Rob1966	Thu Jul 14 2005 03:40 PM
Re: Playa del carmen/Emily	BullitNutz	Thu Jul 14 2005 03:41 PM
Re: Emily a Hurricane	Lysis	Thu Jul 14 2005 02:40 PM
Re: Emily a Hurricane	Tazmanian93	Thu Jul 14 2005 03:17 PM
Franklin?	rmbjoe1954	Thu Jul 14 2005 03:32 PM
Re: Franklin?	Tazmanian93	Thu Jul 14 2005 04:05 PM
Re: Franklin?	Steve H1	Thu Jul 14 2005 05:22 PM
First Cat 5 of Season?	Storm Hunter	Thu Jul 14 2005 05:56 PM
Kudos to the NHC and a few thoughts on Emily	Bloodstar	Thu Jul 14 2005 06:34 PM
Re: First Cat 5 of Season?	jlauderdal	Thu Jul 14 2005 06:19 PM
Re: First Cat 5 of Season?	Rabbit	Thu Jul 14 2005 07:22 PM
Re: Franklin?	Steve H1	Thu Jul 14 2005 03:55 PM
Re:Models & Troph	javlin	Thu Jul 14 2005 02:40 PM
Re: Emily a Hurricane	Domino	Thu Jul 14 2005 04:44 AM
Re: Emily a Hurricane	danielw	Thu Jul 14 2005 06:25 AM
Re: Emily a Hurricane	OrlandoDan	Thu Jul 14 2005 05:03 AM
Re: Emily a Hurricane	Ryan	Thu Jul 14 2005 01:56 PM
Re: Emily a Hurricane	317288	Thu Jul 14 2005 09:58 AM
Re: Emily a Hurricane	trinibaje	Wed Jul 13 2005 11:28 PM
Re: Emily a Hurricane	ftlaudbob	Wed Jul 13 2005 11:30 PM
Re: Emily a Hurricane	javlin	Wed Jul 13 2005 11:25 PM
Re: Emily a Hurricane	HanKFranK	Wed Jul 13 2005 11:30 PM
Re: Emily a Hurricane	Joe	Thu Jul 14 2005 12:02 AM
Steve Gregory's Wunderground blog	Margie	Thu Jul 14 2005 12:53 AM
Re: Steve Gregory's Wunderground blog	danielw	Thu Jul 14 2005 01:20 AM
Re: Steve Gregory's Wunderground blog	Terra	Thu Jul 14 2005 01:30 AM
Re: Steve Gregory's Wunderground blog	Clark	Thu Jul 14 2005 02:36 AM
Re: Steve Gregory's Wunderground blog	BullitNutz	Thu Jul 14 2005 02:46 AM
Re: Steve Gregory's Wunderground blog	Terra	Thu Jul 14 2005 06:41 AM
Re: Steve Gregory's Wunderground blog	BullitNutz	Thu Jul 14 2005 06:47 AM
Re: Steve Gregory's Wunderground blog	Terra	Thu Jul 14 2005 06:52 AM
Re: Steve Gregory's Wunderground blog	Clark	Thu Jul 14 2005 10:58 AM
Re: Steve Gregory's Wunderground blog	Margie	Thu Jul 14 2005 11:02 AM
Re: Steve Gregory's Wunderground blog	ralphfl	Thu Jul 14 2005 01:12 PM
Re: Steve Gregory's Wunderground blog	Clark	Thu Jul 14 2005 02:55 PM
Re: Steve Gregory's Wunderground blog	Lysis	Thu Jul 14 2005 03:08 PM
Re: Steve Gregory's Wunderground blog	Lysis	Thu Jul 14 2005 01:17 PM
Re: Steve Gregory's Wunderground blog	firestar_1	Thu Jul 14 2005 05:12 PM
Re: Steve Gregory's Wunderground blog	Lysis	Thu Jul 14 2005 05:21 PM
Carnac predicts	Margie	Thu Jul 14 2005 05:20 PM
Re: Steve Gregory's Wunderground blog	Lysis	Thu Jul 14 2005 11:16 AM
Re: Steve Gregory's Wunderground blog	Clark	Thu Jul 14 2005 12:32 PM
Re: Steve Gregory's Wunderground blog	Margie	Thu Jul 14 2005 01:26 PM
Re: Steve Gregory's Wunderground blog	scottsvb	Thu Jul 14 2005 01:32 PM
Re: Steve Gregory's Wunderground blog	Lysis	Thu Jul 14 2005 01:28 PM
Re: Steve Gregory's Wunderground blog	Keith234	Thu Jul 14 2005 12:40 PM
Gilbert 1988	Cancun Weather Watcher	Thu Jul 14 2005 12:43 PM
Re: Gilbert 1988	ftlaudbob	Thu Jul 14 2005 01:01 PM
Re: Gilbert 1988	Tazmanian93	Thu Jul 14 2005 01:05 PM
Re: Gilbert 1988	nl	Thu Jul 14 2005 01:07 PM
Re: Gilbert 1988	nl	Thu Jul 14 2005 01:04 PM
Re: Gilbert 1988	Cancun Weather Watcher	Thu Jul 14 2005 01:26 PM
Re: Gilbert 1988	jr928	Thu Jul 14 2005 01:39 PM
Re: Gilbert 1988	nl	Thu Jul 14 2005 01:40 PM
Re: Gilbert 1988	Tazmanian93	Thu Jul 14 2005 01:44 PM
Re: Gilbert 1988	TAZMAN	Thu Jul 14 2005 02:01 PM
Wink	Lysis	Thu Jul 14 2005 02:13 PM
Re: Emily's eye	Margie	Thu Jul 14 2005 03:11 PM
Re: Emily's eye	WeatherNut	Thu Jul 14 2005 03:44 PM
Re: Emily's eye	AgentB	Thu Jul 14 2005 04:17 PM
not due west...a wobble	Rick on boat in Mobile	Thu Jul 14 2005 04:35 PM
I've noticed	Margie	Thu Jul 14 2005 04:45 PM
Re: I've noticed	nl	Thu Jul 14 2005 04:48 PM
Re: not due west...a wobble	Tazmanian93	Thu Jul 14 2005 04:42 PM
Re: not due west...a wobble	nl	Thu Jul 14 2005 04:40 PM
Re: not due west...a wobble	Keith234	Thu Jul 14 2005 05:00 PM
Re: not due west...a wobble	Tazmanian93	Thu Jul 14 2005 05:08 PM
Re: not due west...a wobble	Keith234	Thu Jul 14 2005 05:08 PM
Re: not due west...a wobble	Clark	Thu Jul 14 2005 06:07 PM
Re: not due west...a wobble	Keith234	Thu Jul 14 2005 07:55 PM
Re: not due west...a wobble	Lysis	Thu Jul 14 2005 06:32 PM
Re: not due west...a wobble	Clark	Thu Jul 14 2005 06:35 PM
Re: not due west...a wobble	Margie	Thu Jul 14 2005 07:09 PM
Re: not due west...a wobble	Lysis	Thu Jul 14 2005 07:08 PM
Re: not due west...a wobble	Ryan	Thu Jul 14 2005 10:40 PM
Re: not due west...a wobble	drcrazibob	Thu Jul 14 2005 10:48 PM
Re: not due west...a wobble	bn765	Thu Jul 14 2005 10:52 PM
Re: not due west...a wobble	Clark	Thu Jul 14 2005 07:32 PM
Re: not due west...a wobble	Keith234	Thu Jul 14 2005 07:54 PM
Re: not due west...a wobble	nl	Thu Jul 14 2005 07:35 PM
Re: not due west...a wobble	nowhammies	Thu Jul 14 2005 09:49 PM
Re: not due west...a wobble	richisurfs	Thu Jul 14 2005 07:56 PM
central florida	HanKFranK	Thu Jul 14 2005 07:42 PM
Re: central florida	Terra	Thu Jul 14 2005 07:58 PM
Re: central florida	Keith234	Thu Jul 14 2005 08:03 PM
Emily	Margie	Thu Jul 14 2005 08:17 PM
Box Theory	RedingtonBeachGuy	Thu Jul 14 2005 08:53 PM
Re: Box Theory	Brad in Miami	Thu Jul 14 2005 10:58 PM
Re: Box Theory	nl	Thu Jul 14 2005 08:57 PM
Re: Box Theory	h2ocean	Thu Jul 14 2005 09:40 PM
Tracking info	StormSurfer	Thu Jul 14 2005 09:49 PM
Re: Box Theory	richisurfs	Thu Jul 14 2005 09:09 PM
Re: Box Theory	Clark	Thu Jul 14 2005 09:08 PM
models shift back right	Frank P	Thu Jul 14 2005 09:12 PM
Re: models shift back right	Margie	Thu Jul 14 2005 09:32 PM
Re: models shift back right	Frank P	Thu Jul 14 2005 09:52 PM
Re: models shift back right	Joe	Thu Jul 14 2005 10:18 PM
Pressure still dropping	Bloodstar	Thu Jul 14 2005 10:39 PM
Re: models shift back right	Keith234	Thu Jul 14 2005 09:46 PM
Re: central florida	Terra	Thu Jul 14 2005 08:14 PM
Re: not due west...a wobble	Margie	Thu Jul 14 2005 07:16 PM
stuff to ponder	HanKFranK	Thu Jul 14 2005 07:28 PM
Damage from Emily	Allison	Thu Jul 14 2005 07:26 PM
Wave potential	Clark	Thu Jul 14 2005 07:01 PM
Re: Wave potential	nl	Thu Jul 14 2005 07:09 PM
Re: not due west...a wobble	Storm Hunter	Thu Jul 14 2005 06:25 PM
Re: not due west...a wobble	Storm Hunter	Thu Jul 14 2005 06:35 PM
Re: not due west...a wobble	Rabbit	Thu Jul 14 2005 04:42 PM
Re: Emily's eye	BullitNutz	Thu Jul 14 2005 03:46 PM
Re: Emily's eye	Tazmanian93	Thu Jul 14 2005 04:17 PM
Re: Gilbert 1988	Keith234	Thu Jul 14 2005 12:48 PM
Re: Gilbert 1988	Steve H1	Thu Jul 14 2005 01:03 PM
Re: Steve Gregory's Wunderground blog	BullitNutz	Thu Jul 14 2005 06:56 AM
Re: Steve Gregory's Wunderground blog	firestar_1	Thu Jul 14 2005 07:41 AM
Re: Steve Gregory's Wunderground blog	nl	Thu Jul 14 2005 08:37 AM
Re: Steve Gregory's Wunderground blog	GuppieGrouper	Thu Jul 14 2005 07:15 AM
Re: Steve Gregory's Wunderground blog	Tazmanian93	Thu Jul 14 2005 08:38 AM
Re: Steve Gregory's Wunderground blog	ralphfl	Thu Jul 14 2005 08:56 AM
Re: Steve Gregory's Wunderground blog	Clark	Thu Jul 14 2005 11:05 AM
Re: Steve Gregory's Wunderground blog	drcrazibob	Thu Jul 14 2005 10:33 AM
This site	Wxwatcher2	Thu Jul 14 2005 10:51 AM
Re: Steve Gregory's Wunderground blog	NewWatcher	Thu Jul 14 2005 10:38 AM
Re: Steve Gregory's Wunderground blog	Lysis	Thu Jul 14 2005 10:51 AM
Re: Steve Gregory's Wunderground blog	Shalafi	Thu Jul 14 2005 10:13 AM
Re: Steve Gregory's Wunderground blog	Terra	Thu Jul 14 2005 09:32 AM
Re: Steve Gregory's Wunderground blog	B.C.Francis	Thu Jul 14 2005 09:48 AM
Re: Steve Gregory's Wunderground blog	Tazmanian93	Thu Jul 14 2005 09:30 AM
Re: Steve Gregory's Wunderground blog	nl	Thu Jul 14 2005 09:39 AM
Re: Steve Gregory's Wunderground blog	Margie	Thu Jul 14 2005 09:57 AM
Re: Steve Gregory's Wunderground blog	tpratch	Thu Jul 14 2005 10:12 AM
Re: Steve Gregory's Wunderground blog	Margie	Thu Jul 14 2005 10:52 AM
Re: Steve Gregory's Wunderground blog	tpratch	Thu Jul 14 2005 11:07 AM
Re: Steve Gregory's Wunderground blog	Margie	Thu Jul 14 2005 11:23 AM
something else on evacuations	Margie	Thu Jul 14 2005 11:36 AM
Re: Steve Gregory's Wunderground blog	Rich B	Thu Jul 14 2005 11:32 AM
Re: Steve Gregory's Wunderground blog	drcrazibob	Thu Jul 14 2005 11:38 AM
Re: Steve Gregory's Wunderground blog	Tazmanian93	Thu Jul 14 2005 11:42 AM
hurricane names	Margie	Thu Jul 14 2005 12:24 PM
Re: Steve Gregory's Wunderground blog	rmbjoe1954	Thu Jul 14 2005 11:36 AM
Re: Steve Gregory's Wunderground blog	Tazmanian93	Thu Jul 14 2005 12:48 PM
Re: Steve Gregory's Wunderground blog	Floridacane	Thu Jul 14 2005 02:14 PM
Emily is looking to begin a more northly gig...	Rick on boat in Mobile	Thu Jul 14 2005 01:07 PM
Re: Steve Gregory's Wunderground blog	Tazmanian93	Thu Jul 14 2005 11:28 AM
Re: Steve Gregory's Wunderground blog	Lysis	Thu Jul 14 2005 11:30 AM
Re: Steve Gregory's Wunderground blog	nl	Thu Jul 14 2005 11:43 AM
Re: Steve Gregory's Wunderground blog	nl	Thu Jul 14 2005 11:50 AM
Re: Steve Gregory's Wunderground blog	rmbjoe1954	Thu Jul 14 2005 11:55 AM
Re: Steve Gregory's Wunderground blog	nl	Thu Jul 14 2005 12:03 PM
Re: Steve Gregory's Wunderground blog	Steve H1	Thu Jul 14 2005 12:21 PM
Re: Steve Gregory's Wunderground blog	tpratch	Thu Jul 14 2005 12:09 PM
Re: Steve Gregory's Wunderground blog	Lysis	Thu Jul 14 2005 12:24 PM
Re: Steve Gregory's Wunderground blog	Lysis	Thu Jul 14 2005 11:26 AM
Re: Steve Gregory's Wunderground blog	Lysis	Thu Jul 14 2005 09:41 AM
Re: Steve Gregory's Wunderground blog	AdvAutoBob	Thu Jul 14 2005 11:29 AM
Re: Steve Gregory's Wunderground blog	nl	Thu Jul 14 2005 09:44 AM
Re: Steve Gregory's Wunderground blog	NewWatcher	Thu Jul 14 2005 09:01 AM
Re: Steve Gregory's Wunderground blog	nl	Thu Jul 14 2005 09:18 AM
Re: Steve Gregory's Wunderground blog	Margie	Thu Jul 14 2005 09:50 AM
Re: Steve Gregory's Wunderground blog	nl	Thu Jul 14 2005 09:53 AM
Re: Steve Gregory's Wunderground blog	Lysis	Thu Jul 14 2005 09:22 AM
Re: Steve Gregory's Wunderground blog	nl	Thu Jul 14 2005 09:24 AM
Re: Steve Gregory's Wunderground blog	NewWatcher	Thu Jul 14 2005 09:27 AM
Re: Steve Gregory's Wunderground blog	nl	Thu Jul 14 2005 09:33 AM
Re: Steve Gregory's Wunderground blog	AgentB	Thu Jul 14 2005 09:57 AM
Re: Steve Gregory's Wunderground blog	nl	Thu Jul 14 2005 10:02 AM
Re: Steve Gregory's Wunderground blog	AgentB	Thu Jul 14 2005 10:08 AM
Re: Steve Gregory's Wunderground blog	nl	Thu Jul 14 2005 10:11 AM
Re: Steve Gregory's Wunderground blog	Big Red Machine	Thu Jul 14 2005 10:15 AM
Re: Steve Gregory's Wunderground blog	jr928	Thu Jul 14 2005 11:24 AM
Re: Steve Gregory's Wunderground blog	Tazmanian93	Thu Jul 14 2005 10:37 AM
Re: Steve Gregory's Wunderground blog	Margie	Thu Jul 14 2005 09:54 AM
Re: Steve Gregory's Wunderground blog	nl	Thu Jul 14 2005 09:56 AM
Re: Steve Gregory's Wunderground blog	Margie	Thu Jul 14 2005 10:02 AM
Re: Steve Gregory's Wunderground blog	nl	Thu Jul 14 2005 10:03 AM
Re: Steve Gregory's Wunderground blog	TDW	Thu Jul 14 2005 10:09 AM
Re: Steve Gregory's Wunderground blog	Lysis	Thu Jul 14 2005 10:07 AM
did anyone read this about Dennis's effect in the FLA keys?	Margie	Thu Jul 14 2005 09:32 AM
Re: Steve Gregory's Wunderground blog	Katie	Thu Jul 14 2005 09:23 AM
ralphfl	Rick on boat in Mobile	Thu Jul 14 2005 09:17 AM
Re: ralphfl	HurricaneSteph	Thu Jul 14 2005 09:24 AM
Re: ralphfl	jbmusic	Thu Jul 14 2005 09:31 AM
Re: Steve Gregory's Wunderground blog	ralphfl	Thu Jul 14 2005 08:59 AM
Ralphfl	recmod	Thu Jul 14 2005 09:53 AM
Re: Steve Gregory's Wunderground blog	NewWatcher	Thu Jul 14 2005 08:52 AM
Re: Steve Gregory's Wunderground blog	BullitNutz	Thu Jul 14 2005 07:18 AM
lateniter	HanKFranK	Thu Jul 14 2005 12:53 AM
Re: Emily a Hurricane	CaneTrackerInSoFl	Wed Jul 13 2005 11:29 PM

Extra information

0 registered and 1033 anonymous users are browsing this forum.

Moderator:

Forum Permissions
      You cannot start new topics
      You cannot reply to topics
      HTML is disabled
      UBBCode is enabled

Rating:

Thread views: 65180

Note: This is NOT an official page. It is run by weather hobbyists and should not be used as a replacement for official sources.
CFHC's main servers are currently located at Hostdime.com in Orlando, FL.
Image Server Network thanks to Mike Potts and Amazon Web Services. If you have static file hosting space that allows dns aliasing contact us to help out! Some Maps Provided by:
Great thanks to all who donated and everyone who uses the site as well. Site designed for 800x600+ resolution
When in doubt, take the word of the National Hurricane Center