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Newly tagged Invest 91L in the Central American Gyre heading towards MX/TX, a slow and sprawling flood threat. Bahamas hybrid well E of FL 10%/30% odd and expected to track back to the W across FL or SE US this week.

Days since last H. Landfall - US: Any 292 (Idalia) , Major: 292 (Idalia) Florida - Any: 292 (Idalia) Major: 292 (Idalia)

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News Talkback >> 2004 News Talkbacks

Clark
Meteorologist

Reged:
Posts: 1710

Re: Weakening
Fri Sep 03 2004 03:28 AM

danielw -- indeed it is.

To illustrate this, I used one of the utilities we have here called GEMPAK. Those of you in meteorology are probably familiar with it; for those of you who aren't, simply put, it allows you to display a whole bunch of meteorological data. It's akin to a programming language to display data.

Since it is a rather large file, I have uploaded it to my webserver so as not to clog this webserver down. It is in Adobe PDF format and is about 900kb in size. The file contains a plot of all 12z radio observations from across the eastern US & Bermuda along with three model output runs for comparison -- GFS in lime green, NOGAPS in red, and Eta in a barely readable yellow (my apologies).

You can get the file here:
http://www.northflams.org/misc/500height.pdf

Contours are denoted every 20m, i.e. 5900m, 5920m, and so on. The number in the upper right of each station obervation gives that station's height. Of particular note are how the models handled the height in Bermuda and the heights along the east coast in Charleston and Jacksonville. Only the GFS came close; the other models kept the 5900 and 5920 lines well out to sea. I could do the same for other times and show the same thing -- and this is all without the aid of the radio observations from the G-IV surveillance plane.

Just an interesting piece of info to leave you all with for the evening.

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Subject	Posted by	Posted on
Frances at 11PM	MikeC	Fri Sep 03 2004 03:28 AM
The gulfstream	Alex.K	Fri Sep 03 2004 03:05 AM
Re: The gulfstream	JG	Fri Sep 03 2004 03:09 AM
Weakening	Rabbit	Fri Sep 03 2004 02:52 AM
Re: Weakening	JG	Fri Sep 03 2004 03:07 AM
Re: Weakening	danielw	Fri Sep 03 2004 03:10 AM
slow down..	bobbi	Fri Sep 03 2004 03:58 AM
Re:Glad to be In	javlin	Fri Sep 03 2004 03:47 AM
Movement?	SonnerShawn	Fri Sep 03 2004 03:55 AM
Re: Movement?	SoonerShawn	Fri Sep 03 2004 03:56 AM
Re: Movement?	danielw	Fri Sep 03 2004 04:09 AM
TWC	Colleen A.	Fri Sep 03 2004 04:34 AM
The trend over?	Alex.K	Fri Sep 03 2004 04:23 AM
Here's the rub...	LI Phil	Fri Sep 03 2004 04:43 AM
Re: Here's the rub...	Colleen A.	Fri Sep 03 2004 04:53 AM
Frances seems to be crawing at the moment	Frank P	Fri Sep 03 2004 04:21 AM
Re: Weakening	BabyCat	Fri Sep 03 2004 03:21 AM
Re: Weakening	Jamiewx	Fri Sep 03 2004 02:58 AM
Re: Weakening	Clark	Fri Sep 03 2004 03:04 AM
Re: Weakening	jth	Fri Sep 03 2004 03:00 AM
Re: Weakening	danielw	Fri Sep 03 2004 03:04 AM
Re: Weakening	Clark	Fri Sep 03 2004 03:28 AM
Re: Weakening	HCW	Fri Sep 03 2004 02:58 AM
Re: Weakening	jaybythebay	Fri Sep 03 2004 03:01 AM
Folks, please...	LI Phil	Fri Sep 03 2004 03:10 AM
Re: Folks, please...	Clark	Fri Sep 03 2004 03:41 AM
Re: Folks, please...	FromUpNorth	Fri Sep 03 2004 04:05 AM
Re: Folks, please...	wxman007	Fri Sep 03 2004 04:09 AM
hey jason..and Phil and NHC	bobbi	Fri Sep 03 2004 05:20 AM
Re: hey jason..and Phil and NHC	LI Phil	Fri Sep 03 2004 05:30 AM
Re: hey jason..and Phil and NHC	scottsvb1	Fri Sep 03 2004 05:42 AM
Re: hey jason..and Phil and NHC	LI Phil	Fri Sep 03 2004 06:09 AM
Re: hey jason..and Phil and NHC	wxman007	Fri Sep 03 2004 06:18 AM
Re: hey jason..and Phil and NHC	john03	Fri Sep 03 2004 06:26 AM
Re: recon	john03	Fri Sep 03 2004 06:39 AM
Re:sats	john03	Fri Sep 03 2004 06:54 AM
Re:sats	jth off	Fri Sep 03 2004 06:56 AM
Re:sats bck	john03	Fri Sep 03 2004 06:58 AM
Re:sats bck	jth off	Fri Sep 03 2004 06:59 AM
Re:sats bck	Humanriff	Fri Sep 03 2004 07:02 AM
Re:sats bck	john03	Fri Sep 03 2004 07:04 AM
Re:sats bck	john03	Fri Sep 03 2004 07:01 AM
Re:sats bck	danielw	Fri Sep 03 2004 07:05 AM
Re:sats bck	john03	Fri Sep 03 2004 07:06 AM
Re:sats bck	danielw	Fri Sep 03 2004 07:11 AM
Re:sats bck	john03	Fri Sep 03 2004 07:15 AM
Re:Orange	danielw	Fri Sep 03 2004 07:25 AM
Re:Orange	john03	Fri Sep 03 2004 07:37 AM
Re:NWS Miami update	danielw	Fri Sep 03 2004 07:34 AM
Re:NWS Key West update	danielw	Fri Sep 03 2004 07:43 AM
Re:NWS Key West update	john03	Fri Sep 03 2004 07:46 AM
Re:LSU	danielw	Fri Sep 03 2004 07:49 AM
Re:LSU	john03	Fri Sep 03 2004 07:52 AM
Re:LSU	Becky1322	Fri Sep 03 2004 08:15 AM
Re:LSU	danielw	Fri Sep 03 2004 08:06 AM
Re: sat	john03	Fri Sep 03 2004 08:15 AM
Re: sat	danielw	Fri Sep 03 2004 08:35 AM
Re:LSU	scottsvb1	Fri Sep 03 2004 08:11 AM
Re:LSU	666	Fri Sep 03 2004 08:03 AM
Re:LSU	LadyStorm	Fri Sep 03 2004 12:09 PM
Frances continues to weaken	berrywr	Fri Sep 03 2004 08:17 AM
Re: Frances continues to weaken	danielw	Fri Sep 03 2004 08:25 AM
Following Lowest Pressure	berrywr	Fri Sep 03 2004 08:36 AM
Re: Following Lowest Pressure	firestar_1	Fri Sep 03 2004 12:14 PM
Track	WXMAN RICHIE	Fri Sep 03 2004 12:32 PM
Re: Following Lowest Pressure	LeftOrlando	Fri Sep 03 2004 12:20 PM
Re: Following Lowest Pressure	berrywr	Fri Sep 03 2004 08:43 AM
Re: Following Lowest Pressure	LakeCountySeat	Fri Sep 03 2004 08:47 AM
Re: Following Lowest Pressure	danielw	Fri Sep 03 2004 08:41 AM
Re: Following Lowest Pressure	rmbjoe1954	Fri Sep 03 2004 08:49 AM
Re: Just in Time	danielw	Fri Sep 03 2004 08:47 AM
Re: Following Lowest Pressure	scottsvb1	Fri Sep 03 2004 08:40 AM
Subsidence W of Frances?	berrywr	Fri Sep 03 2004 08:51 AM
Is Frances a dud?	Wxwatcher2	Fri Sep 03 2004 09:09 AM
Re: Is Frances a dud?	52255225	Fri Sep 03 2004 11:53 AM
Re: Is Frances a dud?	RevUp	Fri Sep 03 2004 12:13 PM
Re: Is Frances a dud?	Rasvar	Fri Sep 03 2004 12:05 PM
Re: Is Frances a dud?	HanKFranK	Fri Sep 03 2004 12:05 PM
Seems like they always.......	Frank P	Fri Sep 03 2004 12:43 PM
Re: Seems like they always.......	Jeffmidtown	Fri Sep 03 2004 12:56 PM
Re: Seems like they always.......	DMFischer	Fri Sep 03 2004 12:52 PM
Re: Is Frances a dud?	52255225	Fri Sep 03 2004 12:21 PM
Re: Is Frances a dud?	HCW	Fri Sep 03 2004 12:31 PM
Re: Is Frances a dud?	Rasvar	Fri Sep 03 2004 12:29 PM
Re: Is Frances a dud?	Ed in Va	Fri Sep 03 2004 12:34 PM
Re: Is Frances a dud?	maxwellincfl	Fri Sep 03 2004 12:52 PM
Re: Color Sat pic	danielw	Fri Sep 03 2004 08:55 AM
Re: LSU Sat pic	danielw	Fri Sep 03 2004 09:05 AM
Re: Frances continues to weaken	scottsvb1	Fri Sep 03 2004 08:29 AM
Re: Frances continues to weaken	scottsvb1	Fri Sep 03 2004 08:22 AM
Re:Dud	danielw	Fri Sep 03 2004 08:12 AM
Re: ridge	fred08	Fri Sep 03 2004 07:34 AM
Re:Orange	Timothy	Fri Sep 03 2004 07:30 AM
Re:sats bck	scottsvb1	Fri Sep 03 2004 07:18 AM
Ivan and Frances	Bloodstar	Fri Sep 03 2004 07:21 AM
Re:sats bck	fred08	Fri Sep 03 2004 07:20 AM
Tropical storm Ivan	Matt033	Fri Sep 03 2004 07:33 AM
Re:sats bck	Rabbit	Fri Sep 03 2004 07:06 AM
Re:sats	danielw	Fri Sep 03 2004 06:56 AM
Re:sats	danielw	Fri Sep 03 2004 07:00 AM
Re: Satellites	danielw	Fri Sep 03 2004 06:27 AM
Re: hey jason..and Phil and NHC	wxman007	Fri Sep 03 2004 05:59 AM
Re: Maximum Winds	danielw	Fri Sep 03 2004 06:05 AM
Re: Maximum Winds	fred08	Fri Sep 03 2004 06:11 AM
Re: Maximum Winds	danielw	Fri Sep 03 2004 06:16 AM
Re: Maximum Winds	fred08	Fri Sep 03 2004 06:15 AM
Re: hey jason..and Phil and NHC	HCW	Fri Sep 03 2004 05:55 AM
Re: Folks, please...	FromUpNorth	Fri Sep 03 2004 04:21 AM
Re: Folks, please...	wxman007	Fri Sep 03 2004 04:27 AM
Re: Folks, please...	jth offline	Fri Sep 03 2004 04:43 AM
Re: Folks, please...	wxman007	Fri Sep 03 2004 05:00 AM
Re: think comeback.....	fred08	Fri Sep 03 2004 05:17 AM
Re: think comeback.....	Colleen A.	Fri Sep 03 2004 05:23 AM
Re: think comeback.....	666	Fri Sep 03 2004 06:59 AM
Re: Colleen...	danielw	Fri Sep 03 2004 05:03 AM
Re: Colleen...	Colleen A.	Fri Sep 03 2004 05:16 AM
Re: Satellites	danielw	Fri Sep 03 2004 04:48 AM
Re: Satellites	Colleen A.	Fri Sep 03 2004 04:58 AM
I was wrong.... it is moving as forecast by NHC	Frank P	Fri Sep 03 2004 04:38 AM
Re: I was wrong.... it is moving as forecast by NHC	Colleen A.	Fri Sep 03 2004 04:47 AM
0304Z Vortex message	danielw	Fri Sep 03 2004 04:41 AM
Re: Folks, please...	jth offline	Fri Sep 03 2004 04:35 AM
Re: Folks, please...	HCRay	Fri Sep 03 2004 04:41 AM
Re: Folks, please...	FromUpNorth	Fri Sep 03 2004 04:34 AM
Re: Folks, please...	wxman007	Fri Sep 03 2004 04:39 AM
Re: Folks, please...	FromUpNorth	Fri Sep 03 2004 04:41 AM
Re: Folks, please...	HCRay	Fri Sep 03 2004 04:14 AM
salt lick	HanKFranK	Fri Sep 03 2004 03:58 AM
Re: salt lick	Clark	Fri Sep 03 2004 04:27 AM
Re: salt lick	Colleen A.	Fri Sep 03 2004 04:41 AM
Re: salt lick	Clark	Fri Sep 03 2004 05:00 AM
Re: salt lick	bobbi	Fri Sep 03 2004 04:07 AM
Stewart's Discussion	Colleen A.	Fri Sep 03 2004 04:21 AM
Re: Folks, please...	Todd	Fri Sep 03 2004 03:22 AM
Re: Weakening	Clark	Fri Sep 03 2004 03:08 AM
Re: Weakening	JG	Fri Sep 03 2004 03:19 AM
Re: Weakening	Clark	Fri Sep 03 2004 03:32 AM
I am here...	wxman007	Fri Sep 03 2004 03:27 AM
Re: Weakening	jth	Fri Sep 03 2004 02:57 AM

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