Current Radar or Satellite Image

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


The 2024 season is officially over after a brutal number of landfals, a stunning rampup in the back-half and a record-early Cat 5.
Days since last H. Landfall - US: Any 56 (Milton) , Major: 56 (Milton) Florida - Any: 56 (Milton) Major: 56 (Milton)
None
COMMUNICATION
STORM DATA
CONTENT
FOLLOW US
 

You are not logged in. [Login] Other Forums · Search · Active Topics
New user · Who's Online · FAQ · Rules · Calendar

General Discussion >> Hurricane Ask/Tell
Previous thread Previous   View all threads Index   Next thread Next   Flat Mode Flat  

dem05
User


Reged:
Posts: 368
Loc: Port Charlotte, FL
Re: HurriScale
      Mon Jul 23 2007 01:08 AM

This is good info for the weather hobbiest's back pocket. I would like to indicate two things that should be remembered when using this though...

As Danial Pointed Out, the "clock starts ticking" in his formula when the storm reaches 75MPH. This is very important for a best estimate. For example, Wilma did not become a hurricane until she reached a pressure of about 977 mb. This low pressure was a function of the overall surrounding environment, which also had a very low pressure. The lowest pressure for Wilma was around 882 mb. If you initialized Wilma as a hurricane at 1000MB (Wich is not correct, remember it was 977mb), you would get a wind speed of roughly 193 mph. When initiallizing at 977mb, which is the correct pressure, the wind speed would 170mph...which is pretty close to the actual maximum sustained winds (which were around 175mph).

Also important to remember is that this is an estimate, not a perfect science. In addition, the equation does not have an adjustment factor for strengthening or weakening hurricanes...with particular emphasis on weakening storms. The pressure in a weakening storm is not very representative of it's actual maximum wind potential. An example would be Katrina prior to landfall, the maximum wind speeds decelerated much faster than the pressure rise. This is similar to most weakening storms, so the 1:1, Pressure:Wind convention will not work for weakening systems. But this is a pretty cool little tool for hurricanes otherwise.

Post Extras Print Post   Remind Me!     Notify Moderator


Entire topic
Subject Posted by Posted on
* HurriSheet... Intensity and Surge Estimations from Pressure danielwAdministrator Mon Jul 23 2007 01:08 AM
. * * Re: HurriScale dem05   Mon Jul 23 2007 01:08 AM
. * * Re: HurriScale Hootowl   Thu May 03 2007 07:10 AM
. * * Re: HurriScale Lamar-Plant City   Tue May 01 2007 04:55 PM
. * * Re: HurriScale IMTechspec   Sat Jul 21 2007 11:48 PM
. * * Re: HurriScale RevUp   Tue Jul 24 2007 12:17 PM
. * * Experimental Wind Loading Data CoconutCandy   Tue Jul 24 2007 08:40 PM
. * * Re: HurriSheet... Intensity and Surge Estimations from Pressure danielwAdministrator   Tue Apr 14 2009 08:01 PM
. * * Re: HurriSheet... Intensity and Surge Estimations from Pressure danielwAdministrator   Wed Apr 22 2009 02:16 PM
. * * Re: HurriSheet... Intensity and Surge Estimations from Pressure Storm Hunter   Sat May 16 2009 01:53 PM
. * * Re: HurriSheet... Intensity and Surge Estimations from Pressure danielwAdministrator   Sun May 17 2009 10:00 AM
. * * Re: HurriScale danielwAdministrator   Thu May 03 2007 01:58 AM
. * * Wind Loading and the Saffir-Simpson Scale CoconutCandy   Fri Jul 20 2007 09:05 AM
. * * Re: Wind Loading and the Saffir-Simpson Scale audienceofone   Fri Jul 20 2007 10:01 AM
. * * Re: Wind Loading and the Saffir-Simpson Scale Ed DunhamAdministrator   Fri Jul 20 2007 05:54 PM
. * * Wind Loading and the Saffir-Simpson Scale CoconutCandy   Mon Jul 23 2007 07:43 PM
. * * Re: Wind Loading and the Saffir-Simpson Scale danielwAdministrator   Mon Jul 23 2007 08:25 PM

Extra information
0 registered and 3 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: 15146

Rate this thread

Jump to

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