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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

Maryland Natural Disasters

Maryland has one of the lighter federal disaster records in the country. 38 FEMA disaster declarations are on record, led by flood, with $258.7M in combined property and crop damage. A light count doesn't mean zero risk, just fewer events that crossed the federal declaration threshold. NOAA storm event data shows 10,290 recorded weather events resulting in 61 fatalities, figures the state uses to prioritize disaster-preparedness planning.

38
FEMA declarations
10,290
NOAA storm events
61
Storm fatalities
$258.7M
Property + crop damage

The Maryland risk picture

1 of the 24 counties FEMA scores, 4%, carry a FEMA "high-risk" National Risk Index rating, with riverine flooding the single largest driver of expected annual loss statewide. Maryland has 31 Major Disaster (DR) declarations; FEMA authorizes Individual Assistance, Public Assistance, or both separately for each declaration. NOAA-tracked storms have caused 121 injuries statewide.

4%
of counties rated high-risk by FEMA National Risk Index
38
FEMA disaster declarations on record
$258.7M
in tracked property + crop damage
20,788
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.

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FEMA declarations

38

Low volume

Major Disaster share

82%

Mostly major

NOAA storm events

10,290

Observed severe-weather records

How does Maryland compare?

Maryland vs. every U.S. state

FEMA disaster declarations, all-time

38 17th percentile higher than 17% 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

Maryland county risk-score spread

FEMA National Risk Index composite scores, 0–100

60.2 Top 46% higher than 54% of 24 county composite scores

State average 0 100 Maryland 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?

Maryland sits at the 11th percentile of FEMA declaration volume and the 40th 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 Maryland's record?

FEMA declaration types in Maryland

Wider bars = more declarations of that incident type

declarations

What this shows Flood leads Maryland's FEMA declaration mix with 10 records among the types shown.

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

NOAA storm events by year in Maryland

Reported severe-weather events, 2015-2025 catalog window

4006008001,0001,2001,400 20152016201720182019202020212022202320242025 946

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

Peak year in this series: 2018 (1,220 events). Counts are reported events, not a complete census.

40 /100

Historical Activity Index

Moderate historical activity

Maryland · 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) Low
6/30

38 OpenFEMA declarations, full ingest window (0.4x state average)

NOAA Storm Events (2015–2025) Moderate
12/25

10290 NOAA storm events in the 2015–2025 extract (0.9x median state)

NOAA Damage (2015–2025) Low
4/25

Recorded NOAA property+crop damage in the 2015–2025 extract (0.4x median state)

Hazard Diversity Very High
18/20

7 different disaster types declared in Maryland

What does Maryland's hazard record show?

FEMA disaster declarations

Maryland (MD) has a low level of federal declaration activity, with 38 FEMA declaration records, including 31 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 Flood, followed by Hurricane (9), Severe Storm (8), Snowstorm (7). 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.

Flood exposure & where to dig deeper

Flood exposure is quantified separately through the National Flood Insurance Program. Policyholders across 24Maryland counties have filed 20,788 NFIP claims totaling $339.9M, or an average of $16.4K 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 Riverine Flooding, estimated at $0.5B annually. Drill into individual counties 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, Maryland recorded 10,290 individual storm events, causing 61 fatalities and 121 injuries, with combined property and crop damage estimated at $258.7M. The most frequent event types in the state are Thunderstorm Wind (3,959 events), Winter Weather (1,341 events), Flood (1,089 events). Across the 24counties FEMA scores here, its National Risk Index flags 1 as high-risk, with an average county Risk Index score (FEMA's own formula, distinct from our Historical Activity tool below) of 60.2/100.

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.

Disaster Types in Maryland

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

Flood

26.3%

10 declarations

Hurricane

23.7%

9 declarations

Severe Storm

21.1%

8 declarations

Snowstorm

18.4%

7 declarations

Biological

5.3%

2 declarations

Winter Storm

2.6%

1 declarations

Tornado

2.6%

1 declarations

Storm Events by Type

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

Event Type Events Fatalities Injuries Property Damage
Thunderstorm Wind 3,959 6 43 $102.0M
Winter Weather 1,341 4 26 $95.0K
Flood 1,089 1 0 $1.4M
Flash Flood 790 9 4 $96.3M
Dense Fog 513 0 0 $0
Winter Storm 419 0 0 $0
Hail 410 0 0 $203.0K
Frost/Freeze 263 0 0 $0
Heat 253 15 1 $0
Coastal Flood 242 0 0 $1.7M
Heavy Rain 231 0 0 $0
High Wind 177 2 8 $290.0K
Excessive Heat 149 11 0 $0
Cold/Wind Chill 145 0 0 $100.0K
Tornado 82 2 9 $49.4M
Lightning 47 2 19 $3.9M
Ice Storm 37 0 10 $20.0K
Tropical Storm 35 1 1 $3.0M
Strong Wind 31 1 0 $54.6K
Heavy Snow 21 0 0 $4.0K

Storm Events by Year

Year Events Fatalities Injuries Property Damage
2025 946 2 5 $9.6M
2024 554 1 5 $41.1M
2023 649 2 4 $76.8M
2022 865 3 2 $7.8M
2021 1,103 6 9 $11.4M
2020 1,128 1 20 $10.0M
2019 1,208 4 16 $2.3M
2018 1,220 29 11 $72.3M
2017 851 1 18 $1.1M
2016 888 4 21 $24.5M
2015 878 8 10 $1.7M

FEMA Disaster Declarations

How the 38 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download all 38 declarations as CSV . Source data is public domain; our derived presentation is CC0.

38 unique disaster declarations in Maryland.

DR# Title Type Incident Date
3634 SEVERE WINTER STORM EM Winter Storm 2026-01-24
4583 TROPICAL STORM ISAIAS DR Hurricane 2021-02-04
4491 COVID-19 PANDEMIC DR Biological 2020-03-26
3430 COVID-19 EM Biological 2020-03-13
4376 SEVERE STORM AND FLOODING DR Flood 2018-07-02
4374 SEVERE STORMS AND FLOODING DR Severe Storm 2018-06-25
4279 SEVERE STORM AND FLOODING DR Flood 2016-09-16
4261 SEVERE WINTER STORM AND SNOWSTORM DR Snowstorm 2016-03-04
4170 SNOWSTORM DR Severe Storm 2014-04-10
4091 HURRICANE SANDY DR Hurricane 2012-11-20
3349 HURRICANE SANDY EM Hurricane 2012-10-28
4075 SEVERE STORMS AND STRAIGHT-LINE WINDS DR Severe Storm 2012-08-02
4038 REMNANTS OF TROPICAL STORM LEE DR Flood 2011-10-05
4034 HURRICANE IRENE DR Hurricane 2011-09-16
3335 HURRICANE IRENE EM Hurricane 2011-08-27
1910 SEVERE WINTER STORMS AND SNOWSTORMS DR Snowstorm 2010-05-06
1875 SEVERE WINTER STORM AND SNOWSTORM DR Snowstorm 2010-02-19
1652 SEVERE STORMS, FLOODING, AND TORNADOES DR Severe Storm 2006-07-02
3251 HURRICANE KATRINA EVACUATION EM Hurricane 2005-09-13
1492 HURRICANE ISABEL DR Hurricane 2003-09-19
3179 SNOW EM Severe Storm 2003-03-14
1409 TORNADO DR Tornado 2002-05-01
1324 SEVERE WINTER STORM DR Severe Storm 2000-04-10
1303 HURRICANE FLOYD MAJOR DISASTER DECLARATIONS DR Hurricane 1999-09-24
1139 SEVERE STORMS AND FLOODING ASSOC WITH TROPICAL STORM FRAN DR Hurricane 1996-09-17
1094 SEVERE STORMS AND FLOODING DR Flood 1996-01-23
1081 BLIZZARD OF 96 (SEVERE SNOW STORM) DR Snowstorm 1996-01-11
1016 SEVERE WINTER WEATHER AND ICE STORMS DR Snowstorm 1994-03-16
3100 SEVERE SNOWFALL & WINTER STORM EM Snowstorm 1993-03-16
839 SEVERE STORMS & HIGH WINDS DR Severe Storm 1989-08-28
773 SEVERE STORM & FLOODING DR Flood 1986-09-10
601 SEVERE STORMS, TORNADOES & FLOODING DR Severe Storm 1979-09-14
524 ICE CONDITIONS DR Snowstorm 1977-01-26
522 SEVERE STORMS & FLOODING DR Flood 1976-10-14
489 HEAVY RAINS & FLOODING DR Flood 1975-10-04
341 TROPICAL STORM AGNES DR Flood 1972-06-23
309 SEVERE STORMS & FLOODING DR Flood 1971-08-17
127 SEVERE STORMS, HIGH TIDES & FLOODING DR Flood 1962-03-09

FEMA National Risk Index

Composite natural hazard risk scores for Maryland counties based on FEMA's National Risk Index.

Avg County Risk Score

60.2/100

High Risk Counties

1

of 24 counties

Top Hazard by EAL

Riverine Flooding

$0.5B annual loss est.

Top 5 Hazards by Expected Annual Loss

#1

Riverine Flooding

$492.3M EAL

#2

Heat Wave

$139.8M EAL

#3

Hurricane

$128.4M EAL

#4

Tornado

$53.8M EAL

#5

Earthquake

$49.9M 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 Maryland from FEMA NFIP data.

Total Claims

20,788

Total Paid

$339.9M

Avg Per Claim

$16.4K

Counties With Claims

24

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

Counties in Maryland

24 counties 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.

#CountyDisastersNRI ratingMajor
1Baltimore County24Relatively Moderate17
2Charles County24Relatively Low17
3Calvert County24Very Low17
4Anne Arundel County23Relatively Moderate16
5Frederick County23Relatively Low16
6Howard County22Relatively Low15
7Baltimore (city)22Relatively High15
8Montgomery County21Relatively Moderate14
9Kent County21Very Low14
10Caroline County21Relatively Low14
11Cecil County21Relatively Low14
12Talbot County20Very Low13
13Dorchester County20Relatively Low13
14Harford County20Relatively Low13
15Prince George's County19Relatively Moderate12
16Carroll County19Relatively Low12
17Queen Anne's County18Very Low11
18St. Mary's County18Very Low12
19Washington County17Relatively Low10
20Allegany County17Relatively Low10
21Somerset County14Relatively Low8
22Garrett County14Very Low8
23Wicomico County14Relatively Low8
24Worcester County14Relatively Low8

Highest-risk counties 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 Maryland are Baltimore (Relatively High), Baltimore (Relatively Moderate), Prince George's (Relatively Moderate), Montgomery (Relatively Moderate), Anne Arundel (Relatively Moderate). Compare any county's recorded history with the Historical Activity tool.

All 24 counties in Maryland are listed above.

Compare beyond this profile

Nationwide states with similar NRI score & FEMA declaration volume

Two PlainHazard-derived comparison paths for Maryland: 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 Maryland?
Maryland is affected by flood, hurricane, severe storm, snowstorm. Topping the list is Flood, based on 38 FEMA disaster declarations on record.
How many FEMA disaster declarations has Maryland had?
Maryland has received 38 FEMA disaster declarations, including 31 major disaster declarations. That total is spread across disaster types including Flood (10), Hurricane (9), Severe Storm (8).
What severe weather events are most common in Maryland?
The most common severe weather events in Maryland include thunderstorm wind (3,959 events), winter weather (1,341 events), flood (1,089 events). Between 2015 and 2025, NOAA recorded these events causing 61 fatalities and $258.7M in property and crop damage.
How active is Maryland's federal disaster declaration record?
Maryland has a low level of historical federal declaration activity, based on 38 FEMA declaration records. This band is not a future-risk forecast. Separately, NOAA storm events from 2015-2025 record 61 fatalities and 121 injuries. NOAA-listed property and crop damage totals $258.7M.
How many flood insurance claims has Maryland had?
Maryland has 20,788 National Flood Insurance Program (NFIP) claims with $339.9M total paid out. The average claim payment is $16.4K, with 24 counties reporting flood insurance claims.
Which counties in Maryland have the most disaster declarations?
Among 24 counties in Maryland, those with the most FEMA declaration records include Baltimore (24 declarations), Charles (24 declarations), Calvert (24 declarations). County-level records show where federal declarations have concentrated across the state.

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

What this means for Maryland

Baltimore alone accounts for 63% of Maryland's FEMA disaster declarations, out of 24 counties tracked statewide.

  • The declaration record is uneven within the state: Baltimore and Charles carry the most FEMA declarations. Browse counties
  • See how Maryland 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.