Tornado Risk in Louisiana

All Louisiana counties ranked by FEMA National Risk Index tornado score

Tornado risk — violently rotating columns of air capable of catastrophic local damage — is rated for 64 of 64 Louisiana counties in FEMA's National Risk Index. East Baton Rouge Parish carries the state's highest tornado score at 99.6, with $52M in expected annual tornado losses.

10 Louisiana counties are rated High or Very High for tornado, and expected annual losses from tornado total roughly $247M statewide. The full ranking below links to each county's complete 18-hazard risk profile.

County Rankings — Tornado

#CountyTornado ScoreRatingAnn. Freq.Ann. Loss
1 East Baton Rouge Parish
99.6
Very High 0.40 / yr $52M
2 Ouachita Parish
96.0
High 0.49 / yr $10M
3 Livingston Parish
95.7
High 0.58 / yr $13M
4 Calcasieu Parish
95.6
High 0.87 / yr $11M
5 Ascension Parish
95.3
High 0.24 / yr $13M
6 Lafourche Parish
94.5
High 0.64 / yr $9M
7 St. Landry Parish
94.1
High 0.85 / yr $7M
8 Terrebonne Parish
92.9
High 0.71 / yr $9M
9 Iberia Parish
91.6
High 0.56 / yr $6M
10 Tangipahoa Parish
90.2
High 0.81 / yr $6M
11 Caddo Parish
89.8
Medium 0.86 / yr $5M
12 St. Martin Parish
89.5
Medium 0.61 / yr $5M
13 Evangeline Parish
87.8
Medium 0.66 / yr $4M
14 Lincoln Parish
86.9
Medium 0.38 / yr $4M
15 St. Tammany Parish
86.6
Medium 1.03 / yr $6M
16 St. Mary Parish
86.4
Medium 0.59 / yr $4M
17 Vernon Parish
86.0
Medium 1.12 / yr $4M
18 Bossier Parish
85.8
Medium 0.80 / yr $5M
19 Avoyelles Parish
84.3
Medium 0.71 / yr $3M
20 St. John the Baptist Parish
79.7
Medium 0.31 / yr $4M
21 Pointe Coupee Parish
78.8
Medium 0.54 / yr $2M
22 Webster Parish
78.2
Medium 0.54 / yr $2M
23 East Feliciana Parish
77.5
Medium 0.40 / yr $2M
24 Iberville Parish
77.4
Medium 0.52 / yr $3M
25 St. Charles Parish
77.2
Medium 0.26 / yr $3M
26 Jefferson Davis Parish
75.7
Medium 0.59 / yr $3M
27 Jefferson Parish
72.2
Medium 0.36 / yr $2M
28 Sabine Parish
72.0
Medium 0.81 / yr $2M
29 Madison Parish
71.9
Medium 0.68 / yr $2M
30 Richland Parish
71.8
Medium 0.48 / yr $2M
31 Orleans Parish
71.6
Medium 0.28 / yr $2M
32 Washington Parish
71.6
Medium 0.77 / yr $2M
33 Acadia Parish
71.5
Medium 0.57 / yr $2M
34 St. Helena Parish
69.2
Medium 0.39 / yr $1M
35 Rapides Parish
68.7
Medium 1.15 / yr $2M
36 Morehouse Parish
68.4
Medium 0.65 / yr $1M
37 St. James Parish
67.6
Medium 0.17 / yr $2M
38 Assumption Parish
67.4
Medium 0.24 / yr $2M
39 West Baton Rouge Parish
65.6
Medium 0.17 / yr $3M
40 Lafayette Parish
65.3
Medium 0.22 / yr $2M
41 Allen Parish
65.1
Medium 0.75 / yr $2M
42 Franklin Parish
64.9
Low 0.56 / yr $1M
43 West Feliciana Parish
64.9
Medium 0.37 / yr $2M
44 Union Parish
64.6
Low 0.67 / yr $1M
45 Natchitoches Parish
64.2
Low 1.09 / yr $1M
46 Claiborne Parish
63.0
Low 0.63 / yr $1M
47 East Carroll Parish
62.7
Low 0.45 / yr $1M
48 Jackson Parish
62.6
Low 0.48 / yr $1M
49 Grant Parish
60.8
Low 0.54 / yr $2M
50 Winn Parish
58.8
Low 0.80 / yr $1M
51 Bienville Parish
54.2
Low 0.72 / yr $858K
52 St. Bernard Parish
50.9
Low 1.18 / yr $1M
53 De Soto Parish
50.0
Low 0.80 / yr $859K
54 Concordia Parish
49.1
Low 0.60 / yr $798K
55 Beauregard Parish
48.1
Low 1.02 / yr $1M
56 Tensas Parish
46.0
Low 0.61 / yr $664K
57 Red River Parish
45.1
Low 0.36 / yr $662K
58 West Carroll Parish
42.1
Low 0.32 / yr $646K
59 Plaquemines Parish
40.2
Low 0.68 / yr $773K
60 Caldwell Parish
39.9
Low 0.45 / yr $684K
61 LaSalle Parish
30.8
Low 0.51 / yr $499K
62 Catahoula Parish
30.4
Low 0.59 / yr $322K
63 Vermilion Parish
29.9
Low 0.90 / yr $413K
64 Cameron Parish
26.7
Low 1.21 / yr $399K

64 Louisiana counties with measurable tornado risk. See the national tornado ranking or all Louisiana counties by overall risk.

Frequently Asked Questions

Which Louisiana county has the highest tornado risk?

East Baton Rouge Parish has the highest FEMA tornado risk score in Louisiana at 99.6 (Very High), with $52M in expected annual losses and about 0.40 events per year.

How many Louisiana counties face significant tornado risk?

64 Louisiana counties record measurable tornado risk in FEMA's National Risk Index; 10 of them are rated High or Very High.

Other Hazards in Louisiana