Re: LA - Even with the levee repairs, it still would not have beenenough
- From: "Scott M. Kozel" <kozelsm@xxxxxxxxxxx>
- Date: Mon, 05 Sep 2005 23:43:07 -0400
MrSparkle <sparkle@xxxxxxxxxxxx> wrote:
>
> http://www.usatoday.com/weather/stormcenter/2005-08-31-Katrina-intensity_x.htm?csp=34
>
> Hurricane Katrina stronger than Andrew at landfall
> By Doyle Rice, USATODAY.com
>
> Hurricane Katrina was the third-most intense hurricane to ever hit the
> United States since reliable records began in 1851, according to the
> National Weather Service. Only the "Labor Day Hurricane" that hit the
> Florida Keys in September 1935 and 1969's Hurricane Camille were more
> intense.
>
> As measured by barometric pressure, Katrina was more intense than
> Hurricane Andrew, which roared across south Florida in August 1992.
> Barometric pressure is the most accurate representation of a storm's
> power. The lower the barometric pressure, the more intense the storm is.
>
> Katrina's winds at landfall were 140 mph, which places the storm as a
> strong Category 4 on the Saffir-Simpson scale of hurricane intensity.
> Andrew was a Category 5 storm, with winds of 165 mph when it made
> landfall south of Miami.
Andrew was a "small and ferocious Cape Verde hurricane", much smaller in
diameter than Katrina, comparatively with Andrew having about 1/2 the
overall storm diameter, about 1/3 the storm diameter of hurricane force
winds, and about 1/3 the diameter of the eye.
As such Katrina carried far more overall energy than Andrew, and since
the eye is the location of the lowest barometric pressure, because of
the outward whirling effect of the storm causing lower atmospheric
pressure in the center of the storm, so the much greater overall storm
size and much greater eye size of Katrina led to lower barometric
pressure in the center of the eye as compared to Andrew, despite the
fact that Andrew had somewhat higher maximum wind speeds than Katrina.
--
Scott M. Kozel Highway and Transportation History Websites
Virginia/Maryland/Washington, D.C. http://www.roadstothefuture.com
Philadelphia and Delaware Valley http://www.pennways.com
.
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