Louisiana tornado risk

64 counties scored 1 rated Very High

East Baton Rouge Parish has the highest tornado risk in Louisiana, scoring 99.6 out of 100 — rated "Very High" by FEMA's National Risk Index. Recorded tornado events across Louisiana have decreased 23% over the past five years compared to the prior five-year period.

#	County	NRI score	Rating	NOAA events 2016–2026
1	East Baton Rouge Parish	99.6	Very High	8
2	Ouachita Parish	96	Relatively High	8
3	Livingston Parish	95.7	Relatively High	12
4	Calcasieu Parish	95.6	Relatively High	31
5	Ascension Parish	95.3	Relatively High	10
6	Lafourche Parish	94.5	Relatively High	6
7	St. Landry Parish	94.1	Relatively High	19
8	Terrebonne Parish	92.9	Relatively High	4
9	Iberia Parish	91.6	Relatively High	3
10	Tangipahoa Parish	90.2	Relatively High	27
11	Caddo Parish	89.8	Relatively Moderate	30
12	St. Martin Parish	89.5	Relatively Moderate	6
13	Evangeline Parish	87.8	Relatively Moderate	13
14	Lincoln Parish	86.9	Relatively Moderate	6
15	St. Tammany Parish	86.6	Relatively Moderate	29
16	St. Mary Parish	86.4	Relatively Moderate	4
17	Vernon Parish	86	Relatively Moderate	17
18	Bossier Parish	85.8	Relatively Moderate	21
19	Avoyelles Parish	84.3	Relatively Moderate	21
20	St. John the Baptist Parish	79.7	Relatively Moderate	4
21	Pointe Coupee Parish	78.8	Relatively Moderate	5
22	Webster Parish	78.2	Relatively Moderate	15
23	East Feliciana Parish	77.5	Relatively Moderate	1
24	Iberville Parish	77.4	Relatively Moderate	6
25	St. Charles Parish	77.2	Relatively Moderate	6
26	Jefferson Davis Parish	75.7	Relatively Moderate	9
27	Jefferson Parish	72.2	Relatively Moderate	12
28	Sabine Parish	72	Relatively Moderate	15
29	Madison Parish	71.9	Relatively Moderate	19
30	Richland Parish	71.8	Relatively Moderate	17
31	Orleans Parish	71.6	Relatively Moderate	7
32	Washington Parish	71.6	Relatively Moderate	7
33	Acadia Parish	71.5	Relatively Moderate	14
34	St. Helena Parish	69.2	Relatively Moderate	9
35	Rapides Parish	68.7	Relatively Moderate	29
36	Morehouse Parish	68.4	Relatively Moderate	13
37	St. James Parish	67.6	Relatively Moderate	7
38	Assumption Parish	67.4	Relatively Moderate	4
39	West Baton Rouge Parish	65.6	Relatively Moderate	1
40	Lafayette Parish	65.3	Relatively Moderate	3
41	Allen Parish	65.1	Relatively Moderate	10
42	Franklin Parish	64.9	Relatively Low	9
43	West Feliciana Parish	64.9	Relatively Moderate	2
44	Union Parish	64.6	Relatively Low	16
45	Natchitoches Parish	64.2	Relatively Low	18
46	Claiborne Parish	63	Relatively Low	6
47	East Carroll Parish	62.7	Relatively Low	3
48	Jackson Parish	62.6	Relatively Low	12
49	Grant Parish	60.8	Relatively Low	10
50	Winn Parish	58.8	Relatively Low	15
51	Bienville Parish	54.2	Relatively Low	13
52	St. Bernard Parish	50.9	Relatively Low	4
53	De Soto Parish	50	Relatively Low	28
54	Concordia Parish	49.1	Relatively Low	6
55	Beauregard Parish	48.1	Relatively Low	22
56	Tensas Parish	46	Relatively Low	4
57	Red River Parish	45.1	Relatively Low	6
58	West Carroll Parish	42.1	Relatively Low	10
59	Plaquemines Parish	40.2	Relatively Low	5
60	Caldwell Parish	39.9	Relatively Low	7
61	LaSalle Parish	30.8	Relatively Low	8
62	Catahoula Parish	30.4	Relatively Low	9
63	Vermilion Parish	29.9	Relatively Low	4
64	Cameron Parish	26.7	Relatively Low	14

Source: FEMA National Risk Index v1.20.0, December 2025. Scores are 0–100 percentile rankings among all US counties. See the methodology page for definitions. Download the full CSV for all counties.

Tornado risk nationally:

Top 50 US counties

Other hazard risks in Louisiana:

Wildfire Inland Flooding Coastal Flooding Earthquake Heat Wave Hurricane Hail Strong Wind Winter Weather Ice Storm Cold Wave Lightning Drought Landslide Avalanche Tsunami Volcanic Activity

Frequently asked questions

What is the highest tornado risk county in Louisiana?

East Baton Rouge Parish, LA has the highest tornado risk in Louisiana, with a FEMA National Risk Index score of 99.6 out of 100 (rated "Very High").

How many counties in Louisiana are rated Very High for tornado risk?

1 of 64 scored Louisiana counties are rated "Very High" for tornado risk by FEMA's National Risk Index.

What causes tornado risk in Louisiana?

Tornado risk concentrates in the central and southern plains ("Tornado Alley") and the Southeast ("Dixie Alley"), where atmospheric conditions favor supercell thunderstorm development. The highest scores often belong to counties with significant mobile home and manufactured housing stock, which carries disproportionate tornado mortality risk.