Hurricane Severity Index

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KBBOCA
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Hurricane Severity Index

#1 Postby KBBOCA » Wed Aug 08, 2012 5:56 pm

Hi all,
I was browsing some of the hurricane write ups at Wikipedia (which I know many S2K members have contributed to!), and came across a link to something called the "hurricane severity index" developed by 2 mets at Impact Weather.

http://felix.impactweather.com/hsi/hsi.pdf

It's an interesting presentation showing the impact of a storm's size and total windfield in relation to the damage it caused.

I was surprised I'd not seen discussion of it here at S2K, but could well have missed it, or it may have been many years ago. (Looks like this Index was developed in 2006).

Does anyone have an update as to whether an alternate severity index such as this is under active consideration? It seems like it would be an excellent idea in helping the general public understand that it's not just about the Saffir Simpson Category, but the total windfield, potential storm surge (affected by size), etc.

Just curious... Thanks.
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Hurricane Andrew
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#2 Postby Hurricane Andrew » Wed Aug 08, 2012 8:24 pm

I think i'll have a little fun wth this. Suppose S2K formes a scale like this.

(my scale!)
Hurricane Impact Scale
Points can be earned in these areas.
-Size
-Max Winds
-Area of Max Winds
-Expected Surge
-
SIZE
Small-1pt
Med-2pt
Lrg-3pt
Very lrg-4pt

MAX WINDS
50-73mph:1
74-95mph:2
96-114mph:3
115+mph:4

Size of Hurricane winds
Small:1
Med:2
Large:3

Expeted Surge
2-4 ft:1
4-8ft:2
8-12ft:3
12-16ft:4
16+ft:5

For example
Storm XXX
Size: Large
Max Winds: 135mph
Max Wind Size: Small
Surge: 8ft
HIS:11pts
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