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General Discussion >> Hurricane Ask/Tell

danielw
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Posts: 3527
Loc: Hattiesburg,MS (31.3N 89.3W)

HurriSheet... Intensity and Surge Estimations from Pressure
Mon Apr 30 2007 10:48 PM Attachment (575 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(these have not been peer reviewed)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)

Post Extras

Entire topic
Subject	Posted by	Posted on
HurriSheet... Intensity and Surge Estimations from Pressure	danielw	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	danielw	Tue Apr 14 2009 08:01 PM
Re: HurriSheet... Intensity and Surge Estimations from Pressure	danielw	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	danielw	Sun May 17 2009 10:00 AM
Re: HurriScale	danielw	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 Dunham	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	danielw	Mon Jul 23 2007 08:25 PM

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