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danielwAdministrator
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Reged: Wed
Posts: 3525
Loc: Hattiesburg,MS (31.3N 89.3W)
HurriSheet... Intensity and Surge Estimations from Pressure
      Mon Apr 30 2007 10:48 PM Attachment (307 downloads)

UPDATED 19 April 2009... see the Google links at the bottom of this post.

Some quick formulas for estimating Hurricanes:

From 1013mb to 1000mb-A 1mb drop, in pressure, equals a 5mph increase in windspeed.

From 1000mb to 890mb- A 1mb drop, in pressure, equals a 1 mph increase in windspeed.

Delta P-or change in pressure:
After a storm reaches 75mph. A rough estimation of the Maximum Possible Windspeed (at Flight Level or 10000 feet) may be assumed by using the following formula.
1000 - present pressure in mb= deltaP
deltaP + 75 = Rough estimate of the Max Poss Wind.

eg. Katrina 1000-902=98+75= 173mph
eg. Rita 1000-899=101+75=176mph

more to follow...
(these have not been peer reviewed)

Storm Surge estimation:
1010mb- Storm's lowest pressure/ 4 = maximum possible storm surge, in feet.
Katrina__ 1010-902=108 / 4 =27feet
Rita_____1010-937= 73 / 4 = 18.25feet ( at landfall)

See Attachment, above, for a printable jpg of the HurriSheet.

Google Online Spreadsheet here: HurriSheet Spreadsheet
HurriSheet PDF.. ready to print

Edited by danielw (Sat Mar 31 2012 10:46 AM)

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Entire topic
Subject Posted by Posted on
* HurriSheet... Intensity and Surge Estimations from Pressure danielwAdministrator Mon Apr 30 2007 10:48 PM
. * * 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

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