PRESS RELEASE
As part of an ongoing company-funded research study of tornadic risk assessment, by means of the Site Assessment of Tornado Threat (SATT) software, VorTek has determined the rankings of the top twenty tornado-prone cities for the month of March. The rankings, based on National Weather Service data from 1950 through 2007, are as follows:
|
RANK |
CITY |
ACF (%) |
DISTURBED LAND AREA (ACRES) |
|
1 |
Little Rock, AR |
0.0250 |
201 |
|
2 |
Atlanta, GA |
0.0227 |
182 |
|
3 |
Indianapolis, IN |
0.0188 |
152 |
|
4 |
Birmingham, AL |
0.0178 |
143 |
|
5 |
Macon, GA |
0.0171 |
138 |
|
6 |
Jackson, MS |
0.0138 |
111 |
|
7 |
Shreveport, LA |
0.0119 |
96 |
|
8 |
Montgomery, AL |
0.0103 |
83 |
|
9 |
Columbus, GA |
0.0092 |
74 |
|
10 |
Chattanooga, TN |
0.0084 |
68 |
|
11 |
Topeka, KS |
0.0075 |
60 |
|
12 |
Huntsville, AL |
0.0073 |
59 |
|
13 |
Philadelphia, PA |
0.0072 |
58 |
|
14 |
Madison, WI |
0.0066 |
53 |
|
15 |
McAllen, TX |
0.0060 |
48 |
|
16 |
Mesquite, TX |
0.0055 |
44 |
|
17 |
Springfield, IL |
0.0053 |
42 |
|
18 |
Pembroke Pines, FL |
0.0051 |
41 |
|
19 |
Hollywood, FL |
0.0050 |
40 |
|
20 |
Coral Springs, FL |
0.0045 |
36 |
The Annual Coverage Fraction (ACF) represents the average fraction of land area within a 20-mile radius of the city disturbed by tornadoes during March for the 58-year period from 1950 through 2007. The Disturbed Land Area represents the average number of acres of land within a 20-mile radius of the city disturbed by tornadoes during March for the same 58-year period.
VorTek LLC
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Huntsville, AL 35801
http://vortek.home.mindspring.com