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Pennsylvania · FEMA + NOAA + National Risk Index

Blair County, PA

18 FEMA disaster declarations (1972-2020), with a FEMA National Risk Index rating of Relatively Low. Most common hazard: Flood.

18
FEMA declarations
12
Major disasters
78
NRI risk · Relatively Low
Flood
Top hazard

The verdict

Blair County has a nationally busy FEMA history: 18 declarations, more than 37% of counties in this registry. But the state comparison tempers that reading: the total is 3% below the Pennsylvania county mean. FEMA's separate National Risk Index places the county in the riskiest 22%; that score models loss and vulnerability rather than counting declarations.

Riskiest 22%
of U.S. counties for FEMA National Risk Index score
Relatively Low
FEMA National Risk Index rating
18
FEMA declarations vs 21 national county avg
1,115
NFIP flood insurance claims filed

FEMA's National Risk Index and its declaration registry are separate measures. This county's registry includes Major Disaster (DR) and Emergency (EM) records; an EM authorizes a narrower set of federal assistance than a DR.

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How does Blair County compare?

Blair County vs. all counties in this dataset

FEMA disaster declarations, all-time

18 37th percentile higher than 37% of 3,266 counties

This county 0 90 all U.S. counties FEMA tracks, bucketed by value

Each bar is a band; taller bars hold more counties. 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 · 2026-08-03

Blair County's FEMA Risk Index score

FEMA National Risk Index composite score vs. the Pennsylvania county average

0/100100/100Pennsylvania avg67/10077.7/100
FEMA National Risk Index composite score vs. the Pennsylvania county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Blair County is led by Riverine Flooding (about $27.3M Expected Annual Loss, Historical Loss Ratio Relatively Low), while Winter Weather carries the highest National Risk Index rating (Relatively High). EAL and risk score use different inputs; they need not agree.

Source: FEMA National Risk Index (December 2025 release) - Expected Annual Loss vs composite risk rating by hazard.

What does Blair County's hazard record show?

Reading the federal records together

FEMA's NFIP table contains a substantial paid-claim history for this county: 1,115 claims and $8.5M in payments. PlainHazard labels 500 or more claims a heavy registry record; that is a reporting bucket, not an official FEMA risk grade. The average paid claim was $7.6K. NFIP totals exclude uninsured flood losses and do not measure how many properties currently carry a policy.

Start with the state benchmark: a Pennsylvania county averages 18.6 federal declaration records, while Blair County has 18. The gap is 3% below that mean. Fewer entries indicate a quieter history of recorded federal actions, not immunity from a hazard and not a prediction about what happens next.

FEMA National Risk Index

This county sits among the highest-risk counties nationally on FEMA's National Risk Index, a composite score of 77.7/100 (Relatively Low). Expected Annual Loss is rated Relatively Low (roughly $33.9M in annualized losses). Social vulnerability reads Relatively Moderate and community resilience Very High, both critical modifiers of realized harm here. Of the 18 hazards FEMA models, Winter Weather stands out as the sharpest exposure here, rated Relatively High. FEMA's modeled frequency puts that hazard at an average of 14 times per year here, based on 265 historical events on record.

Declaration frequency

Nationally, Blair County's 18 FEMA records form a high-volume history; within Pennsylvania, however, the count is 3% below the county mean. 12 entries carry the Major Disaster classification. The largest incident group is Flood, appearing 6 times. The full 48-year record averages 0.4 declarations annually. A DR label alone does not say whether Individual Assistance, Public Assistance, or both followed.

55 /100

Historical Activity Index

High historical activity

Blair County, PA · PlainHazard-derived composite from federal records

This 0–100 index is an explicit PlainHazard composite from FEMA declaration history only on the county surface (this DB has no county-level NOAA damage row) . 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) Moderate
13/30

18 OpenFEMA declarations, full ingest window (0.9x national county average)

County Disaster Density Moderate
12/25

18 declarations (1.0x state county average of 19)

Major Disaster Share High
17/25

12 of 18 declarations are major disasters (67%)

Hazard Diversity High
13/20

5 different disaster types declared in Blair County

Historical Declaration Activity

Activity Band

High

vs. Pennsylvania Avg

-3%

State avg: 18.6

vs. National Avg

-13%

National avg: 20.7

Avg Per Year

0.4

Over 48 years

FEMA NRI 8-hazard radar - Blair County

Blair County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 25, Flood 48, Hurricane 25, Tornado 25, Wildfire 8, Drought 0, Heat Wave 25, Winter Storm 70. The simple mean of these eight displayed scores is 28 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 28 8-hazard mean
Blair County NRI risk profile FIPS 42013 · displayed-hazard mean 28/100
How to read this radar

Each axis: NRI risk rating (Very Low-Very High) on a 0-100 scale. Rounder = broad exposure; spiky = one or two hazards dominate.

FEMA Records

18

Below median

Major Disaster share

67%

Major-heavy

NRI risk score

78

Relatively Low

Source: FEMA National Risk Index Per-county per-hazard ratings, December 2025 release

How often does each hazard strike Blair County?

FEMA's National Risk Index models a historical event count and an annualized frequency for each hazard type. Most hazards are expressed as modeled occurrences per year; FEMA expresses drought and heat-wave frequency as event-days per year. These modeled frequencies are not forecasts.

Hazard NRI Risk Rating Recurrence
Winter Weather Relatively High an average of 14 times per year
Riverine Flooding Relatively Moderate an average of 1.5 times per year
Landslide Relatively Low roughly once every 2 years
Hurricane Relatively Low roughly once every 21 years
Lightning Relatively Moderate an average of 37 times per year
Strong Wind Relatively Moderate an average of 2.8 times per year
Earthquake Relatively Low roughly once every 1,852 years
Avalanche Very Low roughly once every 100 years
Tornado Relatively Low roughly once every 6 years
Cold Wave Relatively Low an average of 1.8 times per year
Hail Relatively Low an average of 1.6 times per year
Heat Wave Relatively Low 1.3 modeled event-days per year
Wildfire Very Low roughly once every 10,202 years
Ice Storm Very Low roughly once every 10 years

Source: FEMA National Risk Index Modeled annualized frequency; drought and heat wave use event-days/year, December 2025 release

Disaster Types

Flood 6
Snowstorm 4
Hurricane 3
Severe Storm 3
Biological 2

What Flood declarations mean here

Flood is the most frequent declaration type on Blair County's record, 33% of its declarations. Federal flood declarations cover two mechanisms that behave very differently: riverine flooding, which builds over days as a watershed drains and is usually forecast well in advance, and flash flooding, which can arrive in under an hour from rainfall that fell somewhere upstream.

Flood is also the one hazard class where a second federal dataset exists for the same events. The National Flood Insurance Program records what was actually paid on insured losses, so it measures a narrower thing than the declaration count: uninsured damage, and flooding outside mapped special flood hazard areas, never enters it. Reading the two together is more informative than either alone.

Declaration counts describe past federal action. They are a record of what was declared, not a forecast of future hazard probability.

Declaration Types

What DR / EM / FM mean

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

Major Disaster - 12 66.7%

of all 18 declarations

Emergency - 6 33.3%

of all 18 declarations

FEMA Declarations Timeline

Year Declarations
2020 2
2016 1
2013 1
2011 1
2010 1
2005 1
2004 2
2003 2
1996 3
1993 1
1984 1
1977 1
1972 1

Disaster Declarations

How the 18 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 18 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.

DR# Title Type Incident Date
4506 COVID-19 PANDEMIC DR Biological 2020-03-30
3441 COVID-19 EM Biological 2020-03-13
4267 SEVERE WINTER STORM AND SNOWSTORM DR Snowstorm 2016-03-23
3356 HURRICANE SANDY EM Hurricane 2012-10-29
3340 REMNANTS OF TROPICAL STORM LEE EM Flood 2011-09-08
1898 SEVERE WINTER STORMS AND SNOWSTORMS DR Snowstorm 2010-04-16
3235 HURRICANE KATRINA EM Hurricane 2005-09-10
1555 SEVERE STORMS AND FLOODING ASSOCIATED WITH TROPICAL DEPRESSION FRANCES DR Severe Storm 2004-09-19
1557 TROPICAL DEPRESSION IVAN DR Hurricane 2004-09-19
1485 SEVERE STORMS, TORNADOES, AND FLOODING DR Severe Storm 2003-08-23
3180 SNOW EM Severe Storm 2003-03-14
1130 SEVERE STORMS, FLOODING, AND TORNADOES DR Flood 1996-07-26
1093 SEVERE STORMS AND FLOODING DR Flood 1996-01-21
1085 BLIZZARD OF 96 DR Snowstorm 1996-01-13
3105 SEVERE SNOWFALL & WINTER STORM EM Snowstorm 1993-03-16
721 SEVERE STORMS & FLOODING DR Flood 1984-08-27
537 SEVERE STORMS & FLOODING DR Flood 1977-07-21
340 TROPICAL STORM AGNES DR Flood 1972-06-23

Storm Events in Pennsylvania

Statewide NOAA context only. PlainHazard does not currently attribute these state totals to Blair County.

Storm Type Events Fatalities Injuries Property Damage
Thunderstorm Wind 9,976 18 114 $115.5M
Flash Flood 2,288 23 8 $463.2M
Winter Weather 1,670 23 268 $566.0K
Hail 1,400 0 0 $2.6M
Winter Storm 881 14 17 $2.9M

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

NFIP Flood Insurance Claims

Total Claims

1,115

Total Paid

$8.5M

Avg Per Claim

$7.6K

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

FEMA National Risk Index

Overall Risk

Relatively Low

Score: 77.7/100

Expected Annual Loss

Relatively Low

$33.9M/year

Social Vulnerability

Relatively Moderate

Community Resilience

Very High

Hazard Risk Breakdown

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

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

The model's sharpest exposure here: Winter Weather

Winter Weather in the model means the accumulation of snow and cold that disrupts rather than destroys: road closures, roof loads, burst pipes and lost heating. Its costs land heavily on transport and on households least able to absorb an interruption.

Worth noting for Blair County: the model and the federal record do NOT point at the same hazard. Winter Weather carries the highest modeled rating (Relatively High), while the county's declaration history is led by Flood. That is not a contradiction, the two measure genuinely different things. Declarations record federal ACTION, which requires damage costly enough to exceed state and local capacity; the Risk Index models EXPECTED annual loss across all 18 hazards whether or not any declaration ever followed. A hazard can be the county's largest modeled exposure and never once have driven a declaration.

National Risk Index ratings are modeled estimates of expected annual loss, not predictions of what will happen in any given year.

Data-matched county comparisons

Blair County's closest FEMA peer: Saline County, AR

Comparisons use published FEMA declaration fields plus the National Risk Index composite for Blair County. Record similarity, not a safety rating.

How these peers are chosen

Cohort: Published U.S. county equivalents outside the source state or territory. Each metric keeps six ETL candidates; three unique destinations are shown after de-duplicating across axes. Declaration-volume ranking combines count and Major-disaster share and prefers a different leading incident type; Major-share ranks the Major fraction adjusted for volume; NRI ranks the modeled composite score only.

Retained FEMA snapshot feed for Blair County - capture-dated entries only.

Further reading for this county

Understanding disaster data

Blair County's NFIP claims file (1,115 claims) and FEMA declaration history measure different federal records - this guide separates them from modeled NRI risk.

More PlainHazard guides

Frequently Asked Questions

What is the most common disaster type in Blair County?
The most common disaster type in Blair County is Flood, with 6 declarations. Other disaster types include Snowstorm (4), Hurricane (3), Severe Storm (3).
How does Blair County's FEMA declaration record compare with the Pennsylvania average?
The typical Pennsylvania county has 18.6 FEMA declaration records; Blair County has 18, or 3% fewer. Against the national county mean of 20.7, this county's total is 13% lower. The comparison is historical and says nothing about the probability of a future event.
How many major FEMA disaster declarations has Blair County received?
Blair County has received 12 major disaster declarations, representing 67% of all 18 disaster declarations.
How many flood insurance claims has Blair County filed?
Blair County has 1,115 National Flood Insurance Program (NFIP) claims totaling $8.5M in payments, with an average of $7.6K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Blair County?
No. In Blair County, Winter Weather has the highest National Risk Index rating (Relatively High), while Riverine Flooding leads Expected Annual Loss at about $27.3M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Blair County?
The most active year for disaster declarations in Blair County was 1996, with 3 declarations. The county has FEMA disaster data spanning 1972 to 2020.
What is the FEMA National Risk Index score for Blair County?
According to the FEMA National Risk Index, Blair County, Pennsylvania has an overall risk score of 77.7 out of 100 (Relatively Low). The county's social vulnerability rating is Relatively Moderate and community resilience is Very High. The Expected Annual Loss (EAL) score is Relatively Low, representing $33.9M in annualized losses.
Which natural hazard poses the greatest risk to Blair County?
The top hazard flagged by FEMA's NRI for Blair County is Winter Weather (risk rating: Relatively High). Other significant hazards include Riverine Flooding (Relatively Moderate) and Landslide (Relatively Low). FEMA's modeled event frequency puts winter weather here at an average of 14 times per year, drawn from 265 historical events on record. 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.

Flood insurance data comes from the FEMA National Flood Insurance Program (NFIP) OpenFEMA claims dataset.

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 Blair County

Against a Pennsylvania county mean of 19 declarations, Blair County, PA records 18, or 3% fewer. PlainHazard classifies that historical total as high activity.

  • Major Disaster is the largest group (12 of 18) in a declaration history that remains below its state benchmark; frequency here is not a forecast. Pennsylvania overview
  • Nationally the county exceeds 37% of recorded county totals, but its own Pennsylvania benchmark is higher. The ranking keeps those two contexts separate. Most-disaster rankings
  • The large NFIP claims file and FEMA declaration history measure different federal records; the guide explains where they overlap and where they do not. Disaster-data guide

A below-average federal record is not a safety guarantee. Use National Weather Service alerts and local emergency-management notices for present conditions, not this historical comparison.

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. See our editorial standards & corrections policy, the methodology behind these numbers, or national statistics report, the data & editorial changelog, or report a data error.