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 2006, are as follows:
|
RANK |
CITY |
ACF (%) |
DISTURBED LAND AREA (ACRES) |
|
1 |
Little Rock, AR |
0.02540 |
204 |
|
2 |
Atlanta, GA |
0.02306 |
186 |
|
3 |
Indianapolis, IN |
0.01779 |
154 |
|
4 |
Birmingham, AL |
0.01917 |
143 |
|
5 |
Jackson, MS |
0.01408 |
113 |
|
6 |
Macon, GA |
0.01288 |
104 |
|
7 |
Shreveport, LA |
0.01210 |
97 |
|
8 |
Chattanooga, TN |
0.00855 |
70 |
|
9 |
Topeka, KS |
0.00755 |
61 |
|
10 |
Huntsville, AL |
0.00747 |
60 |
|
11 |
Philadelphia, PA |
0.00733 |
59 |
|
12 |
Madison, WI |
0.00671 |
54 |
|
13 |
McAllen, TX |
0.00606 |
49 |
|
14 |
Mesquite, TX |
0.00551 |
44 |
|
15 |
Springfield, IL |
0.00537 |
43 |
|
16 |
Pembroke Pines, FL |
0.00516 |
42 |
|
17 |
Hollywood, FL |
0.00507 |
41 |
|
18 |
Coral Springs, FL |
0.00459 |
37 |
|
19 |
Trenton, NJ |
0.00444 |
36 |
|
20 |
Columbus, GA |
0.00412 |
33 |
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 57-year period from 1950 through 2006. 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 57-year period.
VorTek LLC
715 Arcadia Circle
Huntsville, AL 35801
http://vortek.home.mindspring.com