PlainHazard

If you are in immediate danger, call 911.

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.

Missouri · FEMA + NOAA + National Risk Index

St. Louis (city), MO

2 FEMA disaster declarations (2022–2025), with a FEMA National Risk Index rating of Relatively High. Most common hazard: Severe Storm.

2
FEMA declarations
2
Major disasters
99
NRI risk · Relatively High
Severe Storm
Top hazard

FEMA's National Risk Index places St. Louis (city) County in the top 1% of U.S. counties for overall natural-hazard risk, and its FEMA disaster-declaration count is higher than 22% of all 2,729 counties tracked.

How does St. Louis (city) County compare?

St. Louis (city) County
2
Missouri county avg
2
National county avg
3.7

How disaster-prone is St. Louis (city) County?

St. Louis (city) County, Missouri has recorded 2 FEMA disaster declarations between 2022 and 2025, of which 2 were classified as Major Disaster declarations (DR) requiring federal individual and public assistance. That puts the county's average at 0.7 declarations per year across a 3-year record, or roughly 0% above the Missouri county average of 2.0 and 47% below the national county average of 3.7.

The dominant disaster type on record is Severe Storm, with 1 of 2 declarations falling under this category. This county sits among the highest-risk counties nationally on FEMA's National Risk Index, a composite score of 98.7/100 (Relatively High). Expected Annual Loss is rated Relatively High (roughly $359.2M in annualized losses). Social vulnerability reads Relatively High and community resilience Relatively High, both critical modifiers of realized harm here. Of the 18 hazards FEMA models, Heat Wave stands out as the sharpest exposure here, rated Very High.

Taken together, St. Louis (city) County reads as low relative risk on this historical lens, fewer federally recognized disasters than a typical U.S. county.

Risk Assessment

Risk Level

Low

vs. Missouri Avg

+0%

State avg: 2.0

vs. National Avg

-47%

National avg: 3.7

Avg Per Year

0.7

Over 3 years

FEMA NRI 8-hazard radar - St. Louis (city) County

St. Louis (city) County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard composite scores for Earthquake 70, Flood 0, Hurricane 8, Tornado 92, Wildfire 8, Drought 0, Heat Wave 92, Winter Storm 48. Overall composite 40 of 100, classified Moderate. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 40 composite
St. Louis (city) County NRI risk profile FIPS 29510 · composite 40/100 (Moderate)
How to read this radar

The radar plots St. Louis (city) County's relative exposure to the eight headline natural hazards used by the FEMA National Risk Index. Each axis is the qualitative NRI risk rating (Very Low through Very High) re-expressed on a 0-100 scale so that the polygon shape lets you compare a county against another at a glance. A rounder polygon means broad multi-hazard exposure; a spiky polygon means one or two dominant hazards drive most of the modeled risk.

FEMA Records

2

Total declarations

NRI Source

FEMA 2023

Latest NRI release

County FIPS

29510

MO state code

Source: FEMA National Risk Index FEMA National Risk Index Per-county per-hazard ratings, 2023 release

Disaster Types

Severe Storm 1
Flood 1

Declaration Types

What DR / EM / FM mean

FEMA categorizes declarations as Major Disasters (DR), Emergencies (EM), or Fire Management Assistance (FM).

Major Disaster - 2 100.0%

of all 2 declarations

FEMA Declarations Timeline

Year Declarations
2025 1
2022 1

Disaster Declarations

DR# Title Type Incident Date
4877 SEVERE STORMS, STRAIGHT-LINE WINDS, TORNADOES, AND FLOODING DR Severe Storm 2025-06-09
4665 SEVERE STORMS AND FLOODING DR Flood 2022-08-08

Storm Events in Missouri

Storm Type Events Fatalities Injuries Property Damage
Thunderstorm Wind 7,277 32 61 $78.8M
Hail 4,904 0 1 $87.3M
Flash Flood 2,644 49 14 $414.1M
Flood 1,929 26 7 $304.8M
Drought 1,158 0 350 $90.8M

Source: NOAA Storm Events Database NOAA Storm Events Database State-level aggregated data, 2015–2025

FEMA National Risk Index

Overall Risk

Relatively High

Score: 98.7/100

Expected Annual Loss

Relatively High

$359.2M/year

Social Vulnerability

Relatively High

Community Resilience

Relatively High

Hazard Risk Breakdown

Heat Wave Very High
Tornado Very High
Earthquake Relatively High
Strong Wind Relatively High
Lightning Relatively High
Cold Wave Relatively Moderate
Hail Relatively Moderate
Ice Storm Relatively High
Winter Weather Relatively Moderate
Landslide Very Low
Hurricane Very Low
Wildfire Very Low
Drought No Rating

Source: FEMA National Risk Index (NRI) FEMA National Risk Index (NRI) Ratings reflect relative scores among all US counties. Data: hazards.fema.gov/nri

Counties with Similar Risk in Missouri

Frequently Asked Questions

How many natural disasters has St. Louis (city) County, Missouri had?
St. Louis (city) County, Missouri has received 2 FEMA disaster declarations from 2022 to 2025. Of these, 2 were major disaster declarations.
What is the most common disaster type in St. Louis (city) County?
The most common disaster type in St. Louis (city) County is Severe Storm, with 1 declaration. Other disaster types include Flood (1).
How does St. Louis (city) County's disaster risk compare to the Missouri average?
St. Louis (city) County has 2 disaster declarations, which is 0% higher than the Missouri county average of 2.0 declarations. Compared to the national county average of 3.7, it is 47% lower.
How many major FEMA disaster declarations has St. Louis (city) County received?
St. Louis (city) County has received 2 major disaster declarations, representing 100% of all 2 disaster declarations. Major disaster declarations typically involve significant damage requiring federal assistance.
What types of storms are most common in Missouri?
The most common storm types in Missouri include Thunderstorm Wind (7,277 events), Hail (4,904 events), Flash Flood (2,644 events). NOAA storm event data covers severe weather from 2015 to 2025.
What was the worst year for disasters in St. Louis (city) County?
The most active year for disaster declarations in St. Louis (city) County was 2022, with 1 declaration. The county has FEMA disaster data spanning 2022 to 2025.
What is the overall disaster risk level for St. Louis (city) County?
St. Louis (city) County's 2 FEMA disaster declarations put it in the low-risk band, fewer federally recognized disasters than a typical U.S. county over the same span.
What is the FEMA National Risk Index score for St. Louis (city) County?
According to the FEMA National Risk Index, St. Louis (city) County, Missouri has an overall risk score of 98.7 out of 100 (Relatively High). The county's social vulnerability rating is Relatively High and community resilience is Relatively High. The Expected Annual Loss (EAL) score is Relatively High, representing $359.2M in annualized losses.
Which natural hazard poses the greatest risk to St. Louis (city) County?
Based on FEMA NRI data, the highest-risk natural hazard in St. Louis (city) County is Heat Wave (risk rating: Very High). Other significant hazards include Tornado (Very High) and Earthquake (Relatively High). These scores are based on FEMA's analysis of historical event frequency, exposed assets, and community vulnerability.
Data Sources & Methodology

Disaster declaration data comes from the FEMA OpenFEMA Disaster Declarations Summaries v2 API, which includes all federally declared disasters, emergencies, and fire management assistance grants.

Storm event data is sourced from the NOAA Storm Events Database (2015–2025), which tracks significant weather events including thunderstorms, tornadoes, floods, and winter storms.

This data is provided for informational purposes only. FEMA disaster declarations represent federal response actions and may not capture all local emergencies or weather events.

What this means for St. Louis (city)

St. Louis (city), MO has 2 FEMA disaster declarations on record, a low historical disaster load, 0% above the Missouri county average.

  • Its most common federal declaration type is major disaster (2 of 2) - know the hazards most likely here before they happen. Missouri overview
  • See how this county ranks against the rest of the country for disaster frequency. Most-disaster rankings
  • Read how to read FEMA declarations, NRI risk scores, and what they do and don't tell you. Disaster-data guide

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

All federal data sources used on this page
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainHazard Editorial

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. This page draws directly on FEMA federal disaster data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.