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The data below is historical (NOAA Storm Events / FEMA), not a live alert. For current warnings and evacuation orders, check the National Weather Service, Ready.gov, or FEMA.gov.

State profile · FEMA + NOAA + National Risk Index

Louisiana Natural Disasters

Louisiana carries a substantial federal disaster record. 111 FEMA disaster declarations are on record, led by hurricane, with $37.4B in combined property and crop damage. The count also reflects declaration policy and program use; it is not a direct measure of physical hazard frequency. NOAA storm event data shows 11,204 recorded weather events resulting in 174 fatalities, numbers that shape which hazards get priority in the state's preparedness planning.

111
FEMA declarations
11,204
NOAA storm events
174
Storm fatalities
$37.4B
Property + crop damage

The Louisiana risk picture

7 of the 64 parishes FEMA scores, 11%, carry a FEMA "high-risk" National Risk Index rating, with hurricane the single largest driver of expected annual loss statewide. Louisiana has 78 Major Disaster (DR) declarations; FEMA authorizes Individual Assistance, Public Assistance, or both separately for each declaration. NOAA-tracked storms have caused 423 injuries statewide.

11%
of parishes rated high-risk by FEMA National Risk Index
111
FEMA disaster declarations on record
$37.4B
in tracked property + crop damage
481,179
NFIP flood insurance claims filed statewide

FEMA's National Risk Index and NOAA's Storm Events Database measure different things: modeled long-run risk vs. observed severe-weather events. Storm Events is a reported dataset, so its counts track what was observed and logged, not every event that occurred, and reporting is denser where more people live. See the methodology for how they relate.

View my watchlist

FEMA declarations

111

High volume

Major Disaster share

70%

Major-heavy

NOAA storm events

11,204

Observed severe-weather records

How does Louisiana compare?

Louisiana vs. every U.S. state

FEMA disaster declarations, all-time

111 Top 20% higher than 80% of 59 states and territories

This state 0 400 all U.S. states and territories FEMA tracks, bucketed by value

Each bar is a band; taller bars hold more states and territories. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source FEMA Disaster Declarations Summaries v2 · 2026-08-25

Louisiana county risk-score spread

FEMA National Risk Index composite scores, 0–100

62.4 44th percentile higher than 44% of 64 county composite scores

State average 0 100 Louisiana counties, bucketed by FEMA score, bucketed by value

Each bar is a band; taller bars hold more county composite scores. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source FEMA National Risk Index (NRI), county composite scores · 2026-08-25

The declaration chart counts past federal actions. The county score chart summarizes FEMA's modeled National Risk Index composite; it is not a forecast, and a state average does not describe every county.

Do more storms mean more federal disasters?

Louisiana sits at the 78th percentile of FEMA declaration volume and the 47th percentile of NOAA storm-event volume among 55 states and territories, those two ranks are not interchangeable.

FEMA declaration rank vs NOAA storm-event rank

Each point is a state or territory plotted by within-sample rank percentile (0–100) on FEMA OpenFEMA declarations (x) and NOAA Storm Events (y). Crosshairs mark the mid-rank (50th). Illinois is the clearest threshold-gap example in this release. Source: FEMA OpenFEMA Disaster Declarations Summaries v2 + NOAA Storm Events Database. 2×2 strategic matrix plotting 30 entities by FEMA declarations (percentile) (X) and NOAA storm events (percentile) (Y), with a crosshair dividing the plot into four quadrants. Busy on both ledgersMany storms · fewer declarationsDeclaration-heavy · fewer stormsQuiet on both 406080100120 020406080100120 FEMA declarations (percentile) NOAA storm events (percentile) Signature insight
Each point is a state or territory plotted by within-sample rank percentile (0–100) on FEMA OpenFEMA declarations (x) and NOAA Storm Events (y). Crosshairs mark the mid-rank (50th). Illinois is the clearest threshold-gap example in this release. Source: FEMA OpenFEMA Disaster Declarations Summaries v2 + NOAA Storm Events Database.
Read the chart, every state as text

Percentiles are within this release's state/territory sample. Raw counts are the underlying FEMA and NOAA totals.

StateFEMA declsFEMA %ileNOAA stormsNOAA %ile
California3969823,69493
Texas3899653,30998
Oklahoma2589523,89695
Washington215934,40822
Florida1889112,83855
Oregon169893,69520
New Mexico1268710,97445
Arizona120859,54138
New York1188421,65382
Montana1128213,57656
Colorado1117818,34073
Louisiana1117811,20447
Nevada110764,53424
Alabama1027514,58364
Kentucky987119,94778
Mississippi987114,10062
Tennessee976916,64569
South Dakota966722,75987
Alaska94642,68315
Kansas946425,11596
Arkansas876013,63758
Nebraska876020,13680
Missouri865822,95289
North Carolina855616,36767
West Virginia845512,02649
Georgia815116,67671
Minnesota815119,10975
Iowa784921,88384
Virginia774723,58491
North Dakota754510,81844
Hawaii72446,20031
Maine71424,78127
Illinois684022,08885
Pennsylvania643819,42776
New Hampshire63362,54711
Vermont62353,44918
Idaho60315,14229
Ohio603116,18465
Massachusetts59256,78133
New Jersey59258,21835
Utah59254,57825
Wisconsin562413,80760
Indiana542212,68753
Puerto Rico51182,94416
South Carolina511810,52042
Michigan46169,05236
Wyoming451512,49451
Connecticut43132,62213
Maryland381110,29040
U.S. Virgin Islands339880
Rhode Island3179247
Delaware2651,4759
Guam2542582
District of Columbia2424525
American Samoa1702924

What shapes Louisiana's record?

FEMA declaration types in Louisiana

Wider bars = more declarations of that incident type

declarations

What this shows Hurricane leads Louisiana's FEMA declaration mix with 38 records among the types shown.

Source FEMA OpenFEMA Disaster Declarations Summaries v2 As of 2026-08-25

NOAA storm events by year in Louisiana

Reported severe-weather events, 2015-2025 catalog window

5001,0001,5002,0002,500 20152016201720182019202020212022202320242025 1,188

Source: NOAA Storm Events Database As of 2026-08-25

Peak year in this series: 2023 (2,199 events). Counts are reported events, not a complete census.

77 /100

Historical Activity Index

Very High historical activity

Louisiana · PlainHazard-derived composite from federal records

This 0–100 index is an explicit PlainHazard composite mixing OpenFEMA declaration totals (1953–present) with NOAA Storm Events (2015–2025), different windows and event definitions, disclosed weights on the methodology page . It is not FEMA's National Risk Index, not a forecast, and not a safety, insurance, or preparedness rating. Open the calculator · Methodology

FEMA Declarations (1953–present) High
19/30

111 OpenFEMA declarations, full ingest window (1.3x state average)

NOAA Storm Events (2015–2025) High
13/25

11204 NOAA storm events in the 2015–2025 extract (1.0x median state)

NOAA Damage (2015–2025) Very High
25/25

Recorded NOAA property+crop damage in the 2015–2025 extract (64.9x median state)

Hazard Diversity Very High
20/20

13 different disaster types declared in Louisiana

What does Louisiana's hazard record show?

Flood exposure & where to dig deeper

Flood exposure is quantified separately through the National Flood Insurance Program. Policyholders across 64Louisiana counties have filed 481,179 NFIP claims totaling $21.0B, or an average of $43.6K per claim. NFIP data captures only insured flood losses, so uninsured flood damage and storm-surge losses outside mapped high-risk zones remain invisible in this figure. The highest-Expected-Annual-Loss hazard across the state is Hurricane, estimated at $1.5B annually. Drill into individual parishes for localized risk, read FEMA's hazard-specific briefings, and review insurance and flood-zone designations, state-level averages can mask sharp county-to-county differences in exposure and resilience.

NOAA storm events & FEMA National Risk Index

NOAA's Storm Events Database adds the near-term severe-weather lens. Between 2015 and 2025, Louisiana recorded 11,204 individual storm events, causing 174 fatalities and 423 injuries, with combined property and crop damage estimated at $37.4B. The most frequent event types in the state are Thunderstorm Wind (3,274 events), Flash Flood (1,516 events), Hail (1,224 events). Across the 64parishes FEMA scores here, its National Risk Index flags 7 as high-risk, with an average county Risk Index score (FEMA's own formula, distinct from our Historical Activity tool below) of 62.4/100.

What this count is, and is not. Storm Events is a reported database: NOAA compiles it from National Weather Service offices, trained spotters, law enforcement, and the public. It is a record of what was observed and logged, not a complete census of severe weather. Densely populated areas report more events than sparsely populated ones with similar meteorological exposure, and detection has improved over time, so an event count is not a like-for-like measure of hazard between places or across decades. Damage figures are field estimates, not audited losses. See methodology.

FEMA disaster declarations

Louisiana (LA) has a high level of federal declaration activity, with 111 FEMA declaration records, including 78 Major Disaster declarations (DR). A DR may authorize Individual Assistance, Public Assistance, or both; those program approvals are not implied by the DR count. The dominant declaration type is Hurricane, followed by Flood (29), Severe Storm (15), Coastal Storm (5). Declaration counts at the state level reflect the cumulative federal footprint: large multi-county events count once per state, but repeat hazard patterns across decades are visible in the breakdown below.

Disaster Types in Louisiana

Share of this state's FEMA declarations; the bar chart above is the same mix as counts.

Hurricane

34.2%

38 declarations

Flood

26.1%

29 declarations

Severe Storm

13.5%

15 declarations

Coastal Storm

4.5%

5 declarations

Tornado

4.5%

5 declarations

Fire

4.5%

5 declarations

Biological

2.7%

3 declarations

Severe Ice Storm

2.7%

3 declarations

Snowstorm

1.8%

2 declarations

Winter Storm

1.8%

2 declarations

Other

1.8%

2 declarations

Tropical Storm

0.9%

1 declarations

Toxic Substances

0.9%

1 declarations

Storm Events by Type

NOAA storm event data for Louisiana (2015-2025).

Event Type Events Fatalities Injuries Property Damage
Thunderstorm Wind 3,274 12 29 $24.9M
Flash Flood 1,516 20 17 $3.9B
Hail 1,224 0 0 $49.3M
Excessive Heat 1,183 3 0 $0
Heat 1,106 5 0 $0
Tornado 712 23 270 $635.8M
Drought 677 0 0 $200.0K
Winter Weather 225 3 1 $26.0K
Tropical Storm 193 2 13 $853.6M
Astronomical Low Tide 153 0 0 $0
Storm Surge/Tide 128 1 0 $3.7B
Winter Storm 125 5 0 $850.0K
Flood 111 9 1 $6.1B
Heavy Snow 84 7 0 $220.0K
Hurricane (Typhoon) 76 55 4 $22.1B
Lightning 66 7 22 $9.3M
Cold/Wind Chill 53 3 0 $0
Coastal Flood 50 0 0 $0
Heavy Rain 48 1 0 $0
Extreme Cold/Wind Chill 40 3 1 $0

Storm Events by Year

Year Events Fatalities Injuries Property Damage
2025 1,188 12 4 $8.4M
2024 1,311 8 18 $231.4M
2023 2,199 15 73 $90.3M
2022 815 9 60 $191.5M
2021 784 42 12 $12.7B
2020 875 38 28 $14.7B
2019 813 8 35 $186.7M
2018 741 9 19 $18.2M
2017 825 7 55 $107.6M
2016 901 22 103 $9.2B
2015 752 4 16 $21.0M

FEMA Disaster Declarations

How the 111 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download all 111 declarations as CSV . Source data is public domain; our derived presentation is CC0.

111 unique disaster declarations in Louisiana.

DR# Title Type Incident Date
4927 TROPICAL STORM ARTHUR DR Tropical Storm 2026-06-30
4900 SEVERE WINTER STORM DR Winter Storm 2026-02-18
3638 SEVERE WINTER STORM EM Winter Storm 2026-01-24
4817 HURRICANE FRANCINE DR Hurricane 2024-09-16
3614 TROPICAL STORM FRANCINE EM Hurricane 2024-09-10
3600 SEAWATER INTRUSION EM Other 2023-09-27
5486 HIGHWAY 113 FIRE FM Fire 2023-08-30
5485 LIONS CAMP ROAD FIRE FM Fire 2023-08-27
5484 IDA FIRE FM Fire 2023-08-25
5482 TIGER ISLAND FIRE FM Fire 2023-08-23
3574 TROPICAL STORM NICHOLAS EM Coastal Storm 2021-09-13
4611 HURRICANE IDA DR Hurricane 2021-08-29
3568 TROPICAL STORM IDA EM Hurricane 2021-08-27
4606 SEVERE STORMS, TORNADOES, AND FLOODING DR Flood 2021-06-02
4590 SEVERE WINTER STORMS DR Severe Ice Storm 2021-03-09
3556 SEVERE WINTER STORM EM Severe Ice Storm 2021-02-18
4577 HURRICANE ZETA DR Hurricane 2021-01-12
3549 TROPICAL STORM ZETA EM Hurricane 2020-10-27
4570 HURRICANE DELTA DR Hurricane 2020-10-16
3547 HURRICANE DELTA EM Hurricane 2020-10-07
3543 HURRICANE SALLY EM Hurricane 2020-09-14
4559 HURRICANE LAURA DR Hurricane 2020-08-28
3538 TROPICAL STORMS LAURA AND MARCO EM Hurricane 2020-08-23
3527 TROPICAL STORM CRISTOBAL EM Coastal Storm 2020-06-07
4484 COVID-19 PANDEMIC DR Biological 2020-03-24
3459 COVID-19 EM Biological 2020-03-13
3522 COVID-19 EM Biological 2020-03-13
4462 FLOODING DR Flood 2019-09-19
4458 HURRICANE BARRY DR Hurricane 2019-08-27
3416 TROPICAL STORM BARRY EM Coastal Storm 2019-07-11
4439 SEVERE STORMS AND TORNADOES DR Severe Storm 2019-06-03
3413 FLOODING EM Flood 2019-05-29
4345 TROPICAL STORM HARVEY DR Hurricane 2017-10-16
3392 TROPICAL STORM NATE EM Hurricane 2017-10-06
3382 TROPICAL STORM HARVEY EM Hurricane 2017-08-28
4300 SEVERE STORMS, TORNADOES, AND STRAIGHT-LINE WINDS DR Tornado 2017-02-11
4277 SEVERE STORMS AND FLOODING DR Flood 2016-08-14
4263 SEVERE STORMS AND FLOODING DR Flood 2016-03-13
3376 FLOODING EM Flood 2016-02-05
4228 SEVERE STORMS AND FLOODING DR Flood 2015-07-13
4102 SEVERE STORMS AND FLOODING DR Severe Storm 2013-02-22
4080 HURRICANE ISAAC DR Hurricane 2012-08-29
3347 TROPICAL STORM ISAAC EM Hurricane 2012-08-27
4041 TROPICAL STORM LEE DR Coastal Storm 2011-10-28
4015 FLOODING DR Flood 2011-08-18
3322 FLOODING EM Flood 2011-05-06
1863 SEVERE STORMS, TORNADOES, AND FLOODING DR Severe Storm 2009-12-10
1792 HURRICANE IKE DR Hurricane 2008-09-13
3295 HURRICANE IKE EM Hurricane 2008-09-11
1786 HURRICANE GUSTAV DR Hurricane 2008-09-02

Showing 50 of 111 declarations.

FEMA National Risk Index

Composite natural hazard risk scores for Louisiana parishes based on FEMA's National Risk Index.

Avg County Risk Score

62.4/100

High Risk Parishes

7

of 64 parishes

Top Hazard by EAL

Hurricane

$1.5B annual loss est.

Top 5 Hazards by Expected Annual Loss

#1

Hurricane

$1.5B EAL

#2

Riverine Flooding

$911.5M EAL

#3

Tornado

$246.6M EAL

#4

Cold Wave

$185.4M EAL

#5

Heat Wave

$139.6M EAL

Source: FEMA National Risk Index (NRI) EAL = Expected Annual Loss. Data: hazards.fema.gov/nri

NFIP Flood Insurance Claims

National Flood Insurance Program claims across Louisiana from FEMA NFIP data.

Total Claims

481,179

Total Paid

$21.0B

Avg Per Claim

$43.6K

Counties With Claims

64

Source: FEMA National Flood Insurance Program (NFIP) OpenFEMA Claims Data

Parishes in Louisiana

64 parishes with FEMA disaster data. Declaration counts measure past federal action; NRI rating is FEMA's modeled composite, so a high count is not a high rating.

#ParishDisastersNRI ratingMajor
1Ascension Parish58Relatively Moderate39
2St. Martin Parish54Relatively Moderate34
3Lafourche Parish54Relatively Moderate34
4Terrebonne Parish53Relatively Moderate32
5Livingston Parish52Relatively High33
6St. Charles Parish51Relatively Moderate32
7St. Tammany Parish50Relatively High31
8Jefferson Parish50Relatively High31
9Rapides Parish49Relatively Moderate26
10St. Mary Parish49Relatively Moderate27
11Assumption Parish49Relatively Low30
12Tangipahoa Parish48Relatively Moderate29
13St. Bernard Parish48Relatively Low29
14East Baton Rouge Parish47Relatively High29
15Pointe Coupee Parish47Relatively Low26
16Iberville Parish47Relatively Low29
17St. Landry Parish46Relatively Moderate27
18St. John the Baptist Parish46Relatively Moderate27
19Vermilion Parish46Relatively Moderate26
20Plaquemines Parish45Relatively Low26
21Catahoula Parish45Very Low27
22West Feliciana Parish44Very Low24
23Ouachita Parish44Relatively Moderate27
24St. James Parish44Relatively Low25
25Iberia Parish43Relatively Moderate24
26Beauregard Parish43Relatively Low24
27Lafayette Parish43Relatively High27
28Avoyelles Parish42Relatively Low22
29Calcasieu Parish42Relatively High23
30Acadia Parish42Relatively Moderate24
31Jefferson Davis Parish42Relatively Low22
32Franklin Parish42Very Low24
33Washington Parish41Relatively Moderate23
34Natchitoches Parish41Relatively Low22
35Allen Parish40Relatively Low21
36East Feliciana Parish40Relatively Low21
37Cameron Parish39Very Low21
38Orleans Parish39Relatively High20
39St. Helena Parish39Very Low21
40Vernon Parish39Relatively Low17
41LaSalle Parish38Very Low21
42West Baton Rouge Parish38Very Low20
43Caldwell Parish38Very Low22
44Grant Parish37Very Low21
45Webster Parish37Relatively Low21
46Concordia Parish37Very Low18
47Richland Parish36Very Low20
48Bossier Parish36Relatively Moderate20
49Union Parish36Relatively Low21
50Morehouse Parish35Relatively Low18
51Caddo Parish35Relatively Moderate19
52Evangeline Parish35Relatively Low18
53Bienville Parish35Very Low19
54Lincoln Parish35Relatively Low19
55Claiborne Parish34Very Low19
56Sabine Parish33Relatively Low15
57Madison Parish33Very Low18
58De Soto Parish33Very Low17
59East Carroll Parish32Very Low17
60Winn Parish32Very Low17
61Red River Parish32Very Low16
62West Carroll Parish31Very Low16
63Tensas Parish29Very Low14
64Jackson Parish27Very Low13

Highest-risk parishes by FEMA National Risk Index

Declaration counts above measure past federal action; FEMA's NRI is a composite of Expected Annual Loss, social vulnerability, and community resilience. By that separate measure the highest-risk counties in Louisiana are Jefferson (Relatively High), Orleans (Relatively High), East Baton Rouge (Relatively High), St. Tammany (Relatively High), Calcasieu (Relatively High). Compare any county's recorded history with the Historical Activity tool.

All 64 parishes in Louisiana are listed above.

Compare beyond this profile

Nationwide states with similar NRI score & FEMA declaration volume

Two PlainHazard-derived comparison paths for Louisiana: nearest states by average county National Risk Index composite and nearest FEMA declaration count (floor ≥5 records). Record similarity only, not a forecast of the next hazard.

Disaster Preparedness Guides

Learn more about natural disaster risk, preparedness, and data interpretation.

Frequently Asked Questions

What natural disasters affect Louisiana?
Louisiana is affected by hurricane, flood, severe storm, coastal storm. Topping the list is Hurricane, based on 111 FEMA disaster declarations on record.
How many FEMA disaster declarations has Louisiana had?
Louisiana has received 111 FEMA disaster declarations, including 78 major disaster declarations. These declarations span multiple disaster types including Hurricane (38), Flood (29), Severe Storm (15).
What severe weather events are most common in Louisiana?
The most common severe weather events in Louisiana include thunderstorm wind (3,274 events), flash flood (1,516 events), hail (1,224 events). These NOAA storm events recorded from 2015 to 2025 have caused 174 fatalities and $37.4B in property and crop damage.
How active is Louisiana's federal disaster declaration record?
Louisiana has a high level of historical federal declaration activity, based on 111 FEMA declaration records. This band is not a future-risk forecast. Separately, NOAA storm events from 2015-2025 record 174 fatalities and 423 injuries. Combined NOAA-listed property and crop losses total $37.4B.
How many flood insurance claims has Louisiana had?
Louisiana has 481,179 National Flood Insurance Program (NFIP) claims with $21.0B total paid out. Claims average $43.6K, with 64 counties reporting flood insurance claims.
Which parishes in Louisiana have the most disaster declarations?
Among 64 parishes in Louisiana, those with the most FEMA declaration records include Ascension (58 declarations), St. Martin (54 declarations), Lafourche (54 declarations). County-by-county figures show where the state's federal declaration history concentrates.

Source: FEMA OpenFEMA Disaster Declarations, NOAA Storm Events Database (2015-2025) For informational purposes only

What this means for Louisiana

Ascension alone accounts for 52% of Louisiana's FEMA disaster declarations, out of 64 counties tracked statewide.

  • The declaration record is uneven within the state: Ascension and St. Martin carry the most FEMA declarations. Browse counties
  • See how Louisiana ranks against other states for disaster frequency and damage. State rankings
  • Learn what FEMA declarations, NRI risk scores, and damage figures do and don't tell you. Disaster-data guide

Historical declaration counts and damage totals describe past federal response, not a forecast. For current threats, follow the National Weather Service and local officials; in an emergency call 911.

Verify with FEMA → · Verify with FEMA NRI → · Verify with NOAA →

Every figure on PlainHazard is rendered directly from FEMA federal disaster data, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or national statistics report, the data & editorial changelog, or report a data error.