Bossier Parish, Louisiana: Natural Disaster Risk and History
Bossier Parish, Louisiana has a Relatively Moderate natural-hazard risk rating in FEMA's National Risk Index (v1.20, December 2025): a score of 82.5 out of 100, higher than about 82% of US counties, with ice storms, heat waves and lightning scoring highest of its 18 hazards and $48 million a year in expected losses.
OpenFEMA lists 34 federal disaster declarations that included Bossier Parish since 1977, not counting 2 for COVID-19; the latest is EM-3638-LA (Severe Winter Storm, declared 24 January 2026). NOAA's Storm Prediction Center recorded 72 tornadoes touching Bossier Parish from 1950 to 2025.
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Population 128,536 Buildings worth $21 billion Area 876 sq mi Risk rank in Louisiana 23 of 64 FIPS 22015
All 18 hazards, highest risk first
FEMA National Risk Index| Hazard | Risk rating | Score | Expected loss a year | How often | Events in record |
|---|---|---|---|---|---|
| Ice storm | Very High | 99.4 | $4.1 million | about 1.5 a year | 103 |
| Heat wave | Relatively High | 97.9 | $14 million | about 21 a year | 338 |
| Lightning | Relatively High | 92.8 | $1.4 million | about 64 a year | 166,315 strikes |
| Hail | Relatively Moderate | 92.4 | $2.1 million | about 5.3 a year | 202 |
| Strong wind | Relatively High | 88.6 | $1.8 million | about 6 a year | 229 |
| Tornado | Relatively Moderate | 85.8 | $5.3 million | about once every 1.3 years | 61 |
| Hurricane | Relatively Low | 74.8 | $935,318 | about once every 16 years | 22 |
| Inland flooding | Relatively Moderate | 74.0 | $15 million | about 2.4 a year | 68 |
| Earthquake | Relatively Low | 72.0 | $886,498 | about once every 629 years | — |
| Cold wave | Relatively Low | 65.2 | $1.7 million | about once every 1.5 years | 13 |
| Drought | Relatively Low | 63.0 | $330,307 | about 25 a year | 952 |
| Winter weather | Relatively Low | 51.4 | $65,186 | about 2.8 a year | 54 |
| Landslide | Very Low | 43.8 | $849 | about once every 5.4 years | — |
| Wildfire | Very Low | 38.6 | $23,118 | rarer than once in 1,000 years | — |
| Avalanche | Not Applicable | — | — | — | — |
| Coastal flooding | Not Applicable | — | — | — | — |
| Tsunami | Not Applicable | — | — | — | — |
| Volcanic activity | Not Applicable | — | — | — | — |
Score: FEMA's percentile among US counties that face the hazard (higher = more risk). Expected loss: FEMA's modelled average yearly loss to buildings, people (as a statistical value) and crops. How often: FEMA's annualised frequency of the hazard in the county; for some hazards it counts event-days, so it is a rough guide, not a forecast. "Not Applicable" means FEMA does not model that hazard here.
Federal disaster declarations 34
Most common: Hurricane 17, Flood 4, Severe Storm 4, Severe Ice Storm 3.
| Decade | Declarations | Incident types |
|---|---|---|
| 1970s | 2 | Tornado, Snowstorm |
| 1980s | 1 | Flood |
| 1990s | 4 | Severe Storm ×3, Flood |
| 2000s | 10 | Hurricane ×7, Severe Storm, Other, Severe Ice Storm |
| 2010s | 3 | Flood ×2, Hurricane |
| 2020s | 14 | Hurricane ×9, Coastal Storm ×2, Severe Ice Storm ×2, Winter Storm |
The last 10
Widest declarations that included Bossier Parish
- Severe Winter Storm (2026, EM-3638-LA): 64 Louisiana counties designated.
- Tropical Storm Francine (2024, EM-3614-LA): 64 Louisiana counties designated.
- Tropical Storm Nicholas (2021, EM-3574-LA): 64 Louisiana counties designated.
Named storms in its declarations: Tropical Storm Francine (2024), Tropical Storm Nicholas (2021), Hurricane Ida (2021), Tropical Storm Ida (2021), Tropical Storm Zeta (2020), Hurricane Delta (2020), Hurricane Sally (2020), Hurricane Laura (2020), Tropical Storm Cristobal (2020), Hurricane Isaac (2012), Hurricane Gustav (2008), Hurricane Rita (2005), Hurricane Katrina (2005), Hurricane Ivan (2004), Tropical Storm Allison (1989).
Not counted above: 2 COVID-19 ("Biological") declarations — in 2020 every US county was included. Louisiana also had 6 statewide declarations with no county list.
Tornado record since 1950 72
| Tornadoes touching the county | 72 |
|---|---|
| Strongest-rated | (E)F4 ×3 |
| Peak month | April (26) |
| Deadliest | 12 Feb 1950, F4, 82.6 mi path, 18 killed, 77 injured |
| Longest path | 12 Feb 1950, F4, 82.6 mi path, 18 killed, 77 injured |
| Most recent | 24 Sep 2025, EF1, 0.3 mi path |
| Deaths / injuries on those paths | 41 / 538 |
| Rating | (E)F0 | (E)F1 | (E)F2 | (E)F3 | (E)F4 | (E)F5 | Unrated |
|---|---|---|---|---|---|---|---|
| Count | 12 | 36 | 14 | 7 | 3 | 0 | 0 |
| Decade | 1950s | 1960s | 1970s | 1980s | 1990s | 2000s | 2010s | 2020s |
|---|---|---|---|---|---|---|---|---|
| Count | 5 | 5 | 5 | 9 | 15 | 9 | 10 | 14 |
Deaths and injuries are for each tornado's whole path, which can run beyond this county. F-scale ratings before February 2007, Enhanced Fujita (EF) after.
How Bossier Parish compares with its 5 nearest counties
| County | Distance | Overall risk | Score | Top hazard |
|---|---|---|---|---|
| Bossier Parish (this page) | — | Relatively Moderate | 82.5 | Ice storm |
| Webster Parish | 26 km | Relatively Low | 69.5 | Ice storm |
| Caddo Parish | 28 km | Relatively Moderate | 92.6 | Ice storm |
| Claiborne Parish | 59 km | Very Low | 41.7 | Ice storm |
| Lafayette County, AR | 63 km | Very Low | 33.2 | Ice storm |
| Bienville Parish | 63 km | Very Low | 28.7 | Ice storm |
Nearest by distance between county centres. Every county in Louisiana, ranked.
Vulnerability and resilience
| Social vulnerability | Relatively Moderate 41.5 |
|---|---|
| Community resilience | Relatively Low 35.6 |
| Community risk factor | 1.07 |
| Expected annual loss, all hazards | $48 million |
FEMA scales expected losses up where social vulnerability is high (people who may find it harder to prepare, evacuate or recover) and down where community resilience is high. A factor above 1 raises the risk score. For social vulnerability a high rating is worse; for resilience a high rating is better.
Prepare for Bossier Parish's main hazards
- Right now: National Weather Service alerts for Louisiana · all official warnings on Global Incident Tracker.
- Ice storm: Power outages now · Carbon monoxide in winter
- Heat wave: Heatstroke warning signs
- Lightning: Weather alerts for Louisiana
- Your property's flood zone: FEMA Flood Map Service Center ↗ — this page cannot tell you that.
- Official preparedness guidance: Ready.gov ↗ and your county emergency management office.
What this page shows, and what it misses
FEMA's National Risk Index rates a whole county against every other US county; it is a planning-level estimate for nationwide comparison, not a flood-zone map and not a substitute for a local risk assessment or the risk to one home. Declarations are presidential disaster, emergency and fire management declarations that named this county; state declarations and SBA or USDA designations are not included. Tornadoes are counted when the county is one of up to four listed on the track; 670 tornadoes that crossed a state line carry no county list in NOAA's file and are left out.
Federal Emergency Management Agency (FEMA), National Risk Index Dataset: National Risk Index Counties - v1.20.0 (December 2025). Retrieved from https://services.arcgis.com/XG15cJAlne2vxtgt/ArcGIS/rest/services/National_Risk_Index_Counties/FeatureServer/0/query on November 2, 2026, 1:20 PM EST. This product uses the Federal Emergency Management Agency’s National Risk Index dataset API or downloadable datasets but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).
Federal Emergency Management Agency (FEMA), OpenFEMA Dataset: Disaster Declarations Summaries - v2, retrieved from https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries on November 2, 2026, 1:21 PM EST. This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).
Tornado records: NOAA/NWS Storm Prediction Center, Severe Weather Database, tornadoes 1950–2025 (https://www.spc.noaa.gov/wcm/data/1950-2025_actual_tornadoes.csv, downloaded 2 November 2026). Public domain; not endorsed by NOAA. Compiled by Global Incident Tracker.
Questions about Bossier Parish
What natural disasters is Bossier Parish, Louisiana most at risk from?
Bossier Parish, Louisiana has a Relatively Moderate natural-hazard risk rating in FEMA's National Risk Index (v1.20, December 2025): a score of 82.5 out of 100, higher than about 82% of US counties, with ice storms, heat waves and lightning scoring highest of its 18 hazards and $48 million a year in expected losses.
How many federal disaster declarations has Bossier Parish had?
OpenFEMA lists 34 federal disaster declarations that included Bossier Parish since 1977, not counting 2 for COVID-19; the latest is EM-3638-LA (Severe Winter Storm, declared 24 January 2026). Another 6 Louisiana declarations were made statewide without a county list.
How many tornadoes have hit Bossier Parish?
NOAA's Storm Prediction Center recorded 72 tornadoes touching Bossier Parish from 1950 to 2025. The deadliest: 12 Feb 1950, F4, 82.6 mi path, 18 killed, 77 injured (deaths and injuries are for the whole path).
Is the National Risk Index a flood zone map?
No. The National Risk Index is a planning-level estimate for a whole county, built for nationwide comparison. It does not tell you the flood zone or the risk of a single property: for that, look up the address on FEMA's Flood Map Service Center (msc.fema.gov) and ask your local floodplain manager.