danielwAdministrator
(Moderator)
Thu Sep 11 2008 08:16 AM
Re: Galveston Bay surge impact

Quick, and not totally accurate formula for estimating surge height developed at LSU.
Pressure change from 1013mb divided by 4 equals approximate surge height.

1013mb-946mb= 16.75 feet of surge not including waves.

Significant Wave height formula for the average 1/3 of the waves is:
1013mb- 946mb=67 x 0.2= 13.4meters x 3.28 = 43.95 feet !!!

Pressure wind relationship for 946mb would be near 129mph at the surface... should Ike spin up~danielw


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