Hazard Plain Automated baseline

Newport County, RI

Risk-assessment baseline packet

County FIPS:
44005
Release:
2026-10
Data as of:
2026-09-30
Storm Events data through:
2026-06-30

Hazard Plain is an independent product built from public federal data. It is not a FEMA document and is not reviewed or endorsed by FEMA or any state agency.

Hazard Plain release 2026-10, as of 2026-09-30.

Summary

Plan status as of 2026-09-30: No county-level plan row in FEMA data.

Highest expected annual loss (FEMA National Risk Index, modeled total; see B1-a): Inland Flooding ($8,668,509 a year), Hurricane ($2,382,338) and Coastal Flooding ($753,519).

The tables that follow are organized by the items of FEMA's Local Mitigation Plan Review Tool, Element B (B1-a to B2-c); each heading says which item its tables support.

Plan clock

No county-level plan row in FEMA data

What changed since your last plan

Not available. No county-level plan row in FEMA data, so there is no approval date to count from.

Sources: 1, 2, 4, 6 (numbered list at the end)

Plan status for every jurisdiction listed in this county

Source: 1

JurisdictionTypeStatusPlanApprovedExpiresDays to expirynegative = days since expiryNotes
Newport cityCityApproved, expires 2031-03-312025 Aquidneck Island Regional Hazard Mitigation and Flood Management Plan (FEMA plan 111337)2026-04-012031-03-311,643Also approved under plan 108398 (2022 Newport Hazard Mitigation Plan Update, expires 2027-12-13). FEMA's plan status map shows one plan per jurisdiction and may show one of these; this packet uses the approved plan that expires last.
Jamestown townTownApproved, expires 2030-01-26Natural Hazard Mitigation Plan Update Jamestown, Rhode Island (FEMA plan 110139)2025-01-272030-01-261,214
Little Compton townTownApproved, expires 2029-08-06Town of Little Compton 2024 Hazard Mitigation & Flood Management Plan (FEMA plan 109969)2024-08-072029-08-061,041
Middletown townTownApproved, expires 2031-03-312025 Aquidneck Island Regional Hazard Mitigation and Flood Management Plan (FEMA plan 111337)2026-04-012031-03-311,643
Portsmouth townTownApproved, expires 2031-03-312025 Aquidneck Island Regional Hazard Mitigation and Flood Management Plan (FEMA plan 111337)2026-04-012031-03-311,643
Tiverton townTownApproved, expires 2030-10-212025 Town of Tiverton Hazard Mitigation Plan Update (FEMA plan 110825)2025-10-222030-10-211,482

State plan status and tribal plans in this state: see the state page.

Supports FEMA checklist item B1-a: hazard identification

Hazards NRI does not cover (local data needed)

  • dam failure (incl. upstream dams)
  • levee failure
  • flash flood as its own subtype
  • ice jams
  • debris flows
  • erosion (riverine and coastal)
  • land subsidence and sinkholes
  • expansive soils

The 18 National Risk Index hazards, ranked by expected annual loss (EAL)

Sources: 5, 6

Rank by EALHazardNRI risk ratingEAL ratingEAL buildingsmodeled dollars per yearEAL agriculturemodeled dollars per yearCost of expected deaths and injuriesFEMA's dollar value per year, not property damageEAL total (see note)modeled dollars per yearStorm Events records, 1996 to 2026-06-30countStorm Events coverage note
1Inland FloodingRelatively LowRelatively Low$8,656,883under $1$11,626$8,668,50921
2HurricaneRelatively LowRelatively Moderate$2,106,480$218,570$57,288$2,382,3383
3Coastal FloodingRelatively ModerateRelatively Moderate$750,879n/a$2,640$753,51910
4EarthquakeVery LowRelatively Low$415,884n/a$67,388$483,271Storm Events does not record earthquakes.
5Strong WindRelatively LowRelatively Low$100,969$1$329,211$430,181123Includes 48 High Wind and 60 Strong Wind records (NOAA non-thunderstorm wind types, outside NRI's Strong Wind definition).
6LightningRelatively LowRelatively Low$14,349n/a$266,294$280,6438
7Cold WaveVery LowRelatively Low$167$1,502$241,733$243,4012
8TornadoVery LowVery Low$175,046$138$43,707$218,8901
9Heat WaveVery LowRelatively Lowunder $1$1,498$206,721$208,2202
10DroughtRelatively LowRelatively Lown/a$97,999n/a$97,9995
11Ice StormRelatively LowRelatively Low$37,701n/a$3,242$40,9430No recorded events in Storm Events since 1996 (data through 2026-06-30).
12Winter WeatherRelatively LowRelatively Low$8,128$7$32,536$40,67163
13WildfireVery LowVery Low$5,114$1$416$5,5310No recorded events in Storm Events since 1996 (data through 2026-06-30).
14HailVery LowVery Low$2,478$94$880$3,45212
15LandslideVery LowVery Low$23n/a$10$320No recorded events in Storm Events since 1996 (data through 2026-06-30).
TsunamiInsufficient DataInsufficient Datan/an/an/an/a0No recorded events in Storm Events since 1996 (data through 2026-06-30).

Total = buildings + agriculture + population equivalence; FEMA values each expected death (or 10 injuries) at $13.7 million (2024 dollars).

NRI risk rating combines expected annual loss with social vulnerability and community resilience; EAL rating rates expected annual loss alone. Both compare this county with all U.S. counties.

Local data needed: state and local wildfire, landslide and tsunami records (Storm Events records these hazards only in part).

Not applicable to this county per NRI, with no federal declaration and no Storm Events record since 1996: avalanche and volcanic activity. That is the evidence for leaving them out of the plan.

The state hazard mitigation plan also lists hazards for this county; FEMA asks the plan to explain any hazard it leaves out.

Supports FEMA checklist item B1-b: hazard location

Affects the whole county (national data give no location within it): Cold Wave, Drought, Hail, Heat Wave, Ice Storm, Lightning, Strong Wind and Winter Weather.

Coastal Flooding and Inland Flooding: The FEMA Flood Insurance Rate Map (FIRM) is the required location source for flooding. See the FEMA Flood Map Service Center (https://msc.fema.gov) for this county.

Hazards that vary within the county: highest-rated census tracts

Source: 5

HazardHighest-rated census tractsNRI risk rating, score 0 to 100
Earthquaketract 409 (Relatively Low, 57.7); tract 404 (Relatively Low, 55.0); tract 410 (Relatively Low, 52.0)
Hurricanetract 404 (Relatively Moderate, 84.0); tract 414 (Relatively Moderate, 83.1); tract 409 (Relatively Moderate, 80.6)
Landslidetract 416.02 (Very Low, 56.5); tract 417.02 (Very Low, 50.7); tract 409 (Very Low, 48.9)
Tornadotract 404 (Relatively Low, 30.4); tract 409 (Very Low, 26.5); tract 414 (Very Low, 24.9)
Tsunamino tract has a National Risk Index rating for this hazard
Wildfiretract 414 (Very Low, 66.1); tract 417.02 (Very Low, 58.8); tract 417.01 (Very Low, 58.2)

Up to 3 census tracts per hazard, highest National Risk Index rating first, then highest score; a tract number is the Census tract number (for example 409 is Census Tract 409). FEMA's Resilience Analysis and Planning Tool maps the National Risk Index for every tract: https://www.fema.gov/emergency-managers/practitioners/resilience-analysis-and-planning-tool

Supports FEMA checklist item B1-c: hazard extent

Extent: scale, observed range and worst recorded event per hazard

Sources: 6, 7

HazardScaleRecordscount and yearsObserved rangeWorst recorded eventMost damaging (when different)How it applies to jurisdictionsNote
Coastal Flood, Storm Surge/Tidenone in data (flood depth: FIRM)10 records, 1997 to 2023 (10 zone-level)Coastal Flood, 2012-10-29, $3,000,000 property; $0 crops (2012 dollars); NWS zone RIZ007Countywide (zone-level records).Flood depth: see the FEMA Flood Insurance Rate Map.
Cold/Wind Chill, Extreme Cold/Wind Chillwind chill2 records, 2015 to 2016 (2 zone-level)1 day; 2 with a recorded value1 consecutive day, 2016-02-14, zone-levelCountywide (zone-level records).
Frost/Freeze (outside NRI's Cold Wave definition)crop damage0
DroughtU.S. Drought Monitor scale (D0 to D4)5 records, 2012 to 2016 (5 zone-level)19 days to 34 days (median 30 days); 3 with a recorded value34 days (about 1.1 months), 2012-04-12 to 2012-05-15, a run of 2 consecutive Storm Events drought records, zone-levelCountywide (zone-level records).Storm Events enters a drought at D2 or worse east of the Rockies and D3 or worse from the Rockies west (NWS Instruction 10-1605); NRI drought counts D3 and D4 only.
EarthquakeModified Mercalli (local data)0Storm Events does not record earthquakes; the USGS earthquake catalog is the source.
Hailhail size (inches)13 records, 1994 to 20240.75 in to 1.75 in (median 0.88 in); 13 with a recorded value1.75 in hail, 1997-06-22Event records naming jurisdictions in the plan: Tiverton town (4 records), Newport city (3 records), Portsmouth town (3 records), Little Compton town (2 records).
Excessive Heat, Heatheat index (in event narratives)2 records, 2010 to 2011 (2 zone-level)1 day; 2 with a recorded value1 consecutive day, 2011-07-22, zone-levelCountywide (zone-level records).
Hurricane, Tropical Storm, Tropical DepressionSaffir-Simpson3 records, 2011 to 2021 (3 zone-level)Strongest recorded: Tropical Storm record, 2021-08-22, $500,000 property; $0 crops (2021 dollars); NWS zone RIZ007Countywide (zone-level records).Storm Events files every zone of a storm's episode under the storm's type; flooding from the storm is filed as Flood or Flash Flood records.
Ice StormSperry-Piltz ice scale (local data)0
Flash Flood, Flood, Lakeshore Flooddamage and flood days (flood depth: FIRM)21 records, 1997 to 2026Flood, 2010-03-30, $3,520,000 property; $0 crops (2010 dollars)Event records naming jurisdictions in the plan: Newport city (6 records), Middletown town (5 records), Jamestown town (4 records), Portsmouth town (3 records), Tiverton town (2 records), Little Compton town (1 record).Flood depth: see the FEMA Flood Insurance Rate Map. Storm Events damage is often $0 or blank for floods, major ones included; FEMA Public Assistance by declaration (B1-d) shows which floods cost the most.
Debris Flownone (count and damage only)0
Lightningannualized frequency (the measure FEMA's Local Mitigation Planning Handbook names)8 records, 1998 to 2023Lightning, 2010-06-05, $20,000 property; $0 crops (2010 dollars)Event records naming jurisdictions in the plan: Portsmouth town (2 records), Tiverton town (2 records), Jamestown town (1 record), Little Compton town (1 record), Newport city (1 record).Storm Events lists lightning with damage or casualties.
High Wind and Strong Wind (outside NRI's Strong Wind definition)wind speed (kt and mph)108 records, 1996 to 2024 (108 zone-level)27 kt (31 mph) to 70 kt (81 mph) (median 50.5 kt (58 mph)); 64 with a recorded value70 kt (81 mph), measurement type not recorded, High Wind, 1996-10-19; NWS zone RIZ007High Wind, 2012-10-29, $100,000 property; $0 crops (zone total, 2012 dollars)Countywide (zone-level records).
Thunderstorm Windwind speed (kt and mph)22 records, 1974 to 202150 kt (58 mph) to 65 kt (75 mph) (median 50 kt (58 mph)); 15 with a recorded value65 kt (75 mph) measured gust, Thunderstorm Wind, 2020-08-25Event records naming jurisdictions in the plan: Newport city (5 records), Little Compton town (3 records), Jamestown town (2 records), Portsmouth town (2 records), Tiverton town (2 records).
TornadoEnhanced Fujita (Fujita before Feb 2007)1 record, 2019F/EF0; 1 with a recorded valueEF0 tornado, 2019-10-02, 0.22 mi within this county, 60 yd wide, $5,000 property; $0 crops (2019 dollars)No event record names a jurisdiction in the plan.Before 1996 a tornado is listed once, under the county where it began, with its whole path's rating and length; from 1996 on, each county lists its own segment. Length is not used to rank tornadoes (see Methods).
Tsunaminone (count and damage only)0
Wildfireacres burned (local data)0
Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleetnone in data (snowfall: local data)63 records, 1996 to 2026 (63 zone-level)Heavy Snow, 2001-03-26, $100,000 property; crops not reported (2001 dollars); NWS zone RIZ007Countywide (zone-level records).

In event narratives only (local data needed): wind chill, temperature, heat index, ice thickness, acres burned and snow depth; any physical measure of debris flow, lightning and tsunami.

Storm Events records are more complete after 1996; before 1996 only Tornado (from 1950), Hail and Thunderstorm Wind (from 1955) exist. Zone-level records from zones that no NWS zone-county file places in this county (mostly before 2020) are not counted here (the Methods page explains the zone matching).

Dollars are nominal (as reported), labeled with the year; not adjusted for inflation.

Supports FEMA checklist item B1-d: previous occurrences

Federal declarations for this county: 22 declarations covering 16 separate hazard incidents counted in this packet (declarations for the same incident count once; non-natural and evacuation-only declarations are not counted).

No county-level plan row in FEMA data, so there is no approval date to count from.

Federal disaster declarations for this county

Sources: 1, 2, 3

DeclaredIncident beganFEMA numberTypeTitleMapped hazardCounty Public Assistancefederal share obligated, nominal dollarsFlagsNotes
2024-03-202024-01-09DR-4766-RIMajor disasterSevere Storms and FloodingInland Flooding$834,957.61within last 5 years
2022-05-122022-01-28DR-4653-RIMajor disasterSevere Winter Storm and SnowstormWinter Weather$407,575.28within last 5 years
2021-08-212021-08-20EM-3563-RIEmergencyHurricane HenriHurricaneno Public Assistance recorded
2020-03-302020-01-20DR-4505-RIMajor disasterCOVID-19 PandemicNon-natural, not counted$4,884,869.38
2020-03-132020-01-20EM-3440-RIEmergencyCOVID-19Non-natural, not countedno Public Assistance recordedsame incident as DR-4505
2015-04-032015-01-26DR-4212-RIMajor disasterSevere Winter Storm and SnowstormWinter Weather$483,309.40
2013-03-222013-02-08DR-4107-RIMajor disasterSevere Winter Storm and SnowstormWinter Weather$350,707.04
2012-11-032012-10-26DR-4089-RIMajor disasterHurricane SandyHurricane$1,171,791.55
2012-10-292012-10-26EM-3355-RIEmergencyHurricane SandyHurricaneno Public Assistance recordedsame incident as DR-4089
2011-09-032011-08-27DR-4027-RIMajor disasterTropical Storm IreneHurricane$507,392.45
2011-08-272011-08-26EM-3334-RIEmergencyHurricane IreneHurricaneno Public Assistance recordedsame incident as DR-4027
2010-03-302010-03-12EM-3311-RIEmergencySevere Storms and FloodingInland Floodingno Public Assistance recordedsame incident as DR-1894
2010-03-292010-03-12DR-1894-RIMajor disasterSevere Storms and FloodingInland Flooding$651,075.41
2007-05-252007-04-15DR-1704-RIMajor disasterSevere Storms and Inland and Coastal FloodingCoastal Flooding$569,383.40
2005-09-192005-08-29EM-3255-RIEmergencyHurricane Katrina EvacuationHurricane: evacuation support, not a local hazard event; not counted$111,023.57
2005-02-172005-01-22EM-3203-RIEmergencyRecord SnowWinter Weather$279,179.98
1996-01-241996-01-07DR-1091-RIMajor disasterBlizzard of 96 (Severe Snow Storm)Winter Weatherno Public Assistance recorded
1993-03-161993-03-13EM-3102-RIEmergencyBlizzards, High Winds & Record SnowfallWinter Weatherno Public Assistance recorded
1991-08-261991-08-19DR-913-RIMajor disasterHurricane BobHurricaneno Public Assistance recorded
1985-10-151985-09-27DR-748-RIMajor disasterHurricane GloriaHurricaneno Public Assistance recorded
1978-02-161978-02-16DR-548-RIMajor disasterSnow & IceWinter WeatherPA not declared for this county
1978-02-071978-02-07EM-3058-RIEmergencyBlizzard & SnowstormsWinter Weatherno Public Assistance recorded

County Public Assistance: applicants the FEMA record places in this county, including any state agencies FEMA files there; statewide rows are listed on the state page; federal share obligated, nominal dollars.

Statewide declarations

Source: 2

DeclaredIncident beganFEMA numberTypeTitleMapped hazard
1955-08-201955-08-20DR-39-RIMajor disasterHurricane & FloodHurricane (primary); also designated: Inland Flooding
1954-09-021954-09-02DR-23-RIMajor disasterHurricanesHurricane (primary); also designated: Inland Flooding

FEMA recorded these with designated area Statewide and no county, so they are listed on every county page in the state and not counted with county rows. Local data needed: whether each one affected this county.

Previous occurrences by hazard, with explicit no-event rows

Sources: 2, 6, 7

HazardStorm Events records, all years on file(years in the Period column)Since plan approvalrecordsIn the 12 months before plan approvalrecordsLast 5 yearsrecordsDeclared incidents, all yearsseparate disastersDeclared since approvalseparate disastersPeriodStatement
Coastal Flooding10211996 to 2026-06-30
Cold Wave2001996 to 2026-06-30
Drought5001996 to 2026-06-30
Earthquake000Storm Events does not record earthquakes; the USGS earthquake catalog is the source.
Hail13101955 to 2026-06-30
Heat Wave2001996 to 2026-06-30
Hurricane3051996 to 2026-06-30
Ice Storm0001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Inland Flooding21421996 to 2026-06-30
Landslide0001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Lightning8101996 to 2026-06-30
Strong Wind1301101955 to 2026-06-30Includes 48 High Wind and 60 Strong Wind records.
Tornado1001950 to 2026-06-30
Tsunami0001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Wildfire0001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Winter Weather63481996 to 2026-06-30

Notable Storm Events records

Sources: 1, 6, 7

DateEvent typeMagnitude or extentDamagenominal dollarsDeaths, injuriesdirect onlyLocationWhy listed
2021-08-22Tropical Storm$500,000 property; $0 crops (zone total, 2021 dollars)0, 0NWS zone RIZ007 (NEWPORT), zone-levelB1-c worst recorded: Hurricane, Tropical Storm, Tropical Depression
2020-08-25Thunderstorm Wind65 kt (75 mph) measured gust$50,000 property; $0 crops (2020 dollars)0, 0JAMESTOWNB1-c worst recorded: Thunderstorm Wind
2019-10-02TornadoEF0, 0.22 mi within this county, 60 yd wide$5,000 property; $0 crops (2019 dollars)0, 0QUONSET PT NASB1-c worst recorded: Tornado
2018-03-02High Wind58 kt (67 mph) measured gust$2,000 property; $0 crops (zone total, 2018 dollars)1, 0NWS zone RIZ007 (NEWPORT), zone-leveldeaths or injuries recorded
2016-02-14Extreme Cold/Wind Chill$0 property; $0 crops (zone total, 2016 dollars)0, 0NWS zone RIZ007 (NEWPORT), zone-levelB1-c worst recorded: Cold/Wind Chill, Extreme Cold/Wind Chill
2012-10-29Coastal Flood$3,000,000 property; $0 crops (zone total, 2012 dollars)0, 0NWS zone RIZ007 (NEWPORT), zone-levelB1-c worst recorded: Coastal Flood, Storm Surge/Tide
2012-04-12Drought$0 property; $0 crops (zone total, 2012 dollars)0, 0NWS zone RIZ007 (NEWPORT), zone-levelB1-c worst recorded: Drought
2011-07-22Excessive Heat$0 property; $0 crops (zone total, 2011 dollars)0, 0NWS zone RIZ007 (NEWPORT), zone-levelB1-c worst recorded: Excessive Heat, Heat
2010-06-05Lightning$20,000 property; $0 crops (2010 dollars)0, 0PORTSMOUTHB1-c worst recorded: Lightning
2010-03-30Flood$3,520,000 property; $0 crops (2010 dollars)0, 0CONANICUT PARK to JAMESTOWNB1-c worst recorded: Flash Flood, Flood, Lakeshore Flood
2001-03-26Heavy Snow$100,000 property; crops not reported (zone total, 2001 dollars)0, 0NWS zone RIZ007 (NEWPORT), zone-levelB1-c worst recorded: Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleet
1996-10-19High Wind70 kt (81 mph), measurement type not recordeddamage not reported0, 0NWS zone RIZ007 (NEWPORT), zone-levelB1-c worst recorded: High Wind and Strong Wind

The full list is in the Excel file, sheet "B1-d Storm Events history" (258 rows).

Location is the place NOAA recorded, as written in its data; it need not be a jurisdiction in this plan.

Local data needed: state-declared emergencies, from your state emergency management agency (federal data do not include them).

Tribal and special-area declarations in this state are listed on the state page.

Supports FEMA checklist item B1-e: probability of future events

Probability: FEMA annualized frequency and descriptor per hazard

Sources: 5, 6

HazardFEMA annualized frequency (modeled)unit per rowUnitIn plain termsDescriptorDescriptor basisNRI events or days in its record period (hail, wind and tornado are area-weighted, so can be fractional)NRI periodLocationNote
Coastal Flooding3.7events per year at a location (modeled)about 3.7 per year at a given location in the countyHighly likelyFEMA annualized frequency (modeled)not shownmodeledsee B1-fDescriptor from NRI: the rate at a location is 1 or more a year, so the county rate is at least that.
Cold Wave0.729event-days per yearabout 0.729 days per yearPossibleStorm Events event-days in 2 of 30 years, 1996 to 2025 (6.67%)4.842005-11-12 to 2024-11-12 (19 years)countywide
Drought3.57event-days per yearabout 3.57 days per yearPossibleStorm Events event-days in 2 of 30 years, 1996 to 2025 (6.67%)912000 to 2025 (25.25 years; D3 and D4 only)countywide
Earthquake0.00113annual probability at a locationchance a given location in the county has at least minor-damage shaking in a year: 0.113%not shownmodeledsee B1-fNo descriptor (Storm Events does not record earthquakes).
Hail1.06events per yearabout 1.06 per yearHighly likelyFEMA annualized frequency (modeled)49.6 (modeled)1986 to 2023 (38 years)countywide
Heat Wave2.61event-days per yearabout 2.61 days per yearPossibleStorm Events event-days in 2 of 30 years, 1996 to 2025 (6.67%)14.52005-11-12 to 2024-11-12 (19 years)countywide
Hurricane0.196events per yearabout 1 in 5 yearsLikelyFEMA annualized frequency (modeled)501851 to 2024 (Atlantic)see B1-fNRI counts hurricane and tropical storm tracks passing within storm-force wind range; federal declarations are in B1-d.
Ice Storm0.238event-days per yearabout 0.238 days per yearStorm Events event-days in 0 of 30 years, 1996 to 2025 (0%)71946-12-31 to 2014-02-12 (67 years)countywideNo Storm Events ice storm record, 1996 to 2025
Inland Flooding0.464event-days per yearabout 0.464 days per yearLikelyStorm Events event-days in 13 of 30 years, 1996 to 2025 (43.3%)131996 to 2023 (28 years)see B1-f
Landslide0.0166events per year (modeled)about 1 in 60 yearsPossibleFEMA annualized frequency (modeled)not shownmodeledsee B1-f
Lightning19.7days per year with a strikeabout 19.7 days per yearHighly likelyFEMA annualized frequency (modeled)not shown1995 to 2023 (29 years; CONUS)countywide
Strong Wind0.699events per yearabout 0.7 per yearLikelyFEMA annualized frequency (modeled)121986 to 2023 (38 years)countywide
Tornado0.0445events per yearabout 1 in 22 yearsPossibleFEMA annualized frequency (modeled)not shown1950 to 2023 (EF2+); 1986 to 2023 (EF0-1)see B1-f
Tsunamiannual probability at the most exposed location (used in place of a county value)Storm Events records in 0 of 30 years, 1996 to 2025 (0%)not shownmodeledsee B1-fNo descriptor: no Storm Events record 1996 to 2025
Wildfire0.0000135annual probability at a locationchance a given location in the county burns in a year: 0.00135%Storm Events records in 0 of 30 years, 1996 to 2025 (0%)not shownmodeledsee B1-fNo descriptor: no Storm Events record 1996 to 2025
Winter Weather9.74event-days per yearabout 9.74 days per yearLikelyStorm Events event-days in 25 of 30 years, 1996 to 2025 (83.3%)64.72005-11-12 to 2024-11-12 (19 years)countywide

FEMA annualized frequency (modeled) is the National Risk Index v1.20 (December 2025) estimate of how often a hazard affects this county in a year; it is not recorded events divided by years, and its unit differs by hazard (events, event-days, or days with a lightning strike per year). For earthquake, wildfire, coastal flooding and tsunami the value is the chance (or number of events) at a location in the county, not across the county, so no "1 in N years" is given and the descriptor comes from Storm Events where it has a record (none for earthquake). The Methods page gives each hazard's method, from FEMA's National Risk Index Technical Documentation v1.20.

Where NRI gives event-days, the descriptor comes from the share of years with a Storm Events record; NRI's source records more events, so the two differ.

Descriptor scale used in this packet (defined per unit)

Sources: 5, 6

UnitDescriptorDefinition
events per yearHighly likely1 or more per year
events per yearLikelyabout once in 1 to 10 years
events per yearPossibleabout once in 10 to 100 years
events per yearUnlikelyless than once in 100 years
annual probabilityLikely10% to under 100% chance in a given year
annual probabilityPossible1% to under 10% chance in a given year
annual probabilityUnlikelyunder 1% chance in a given year
event-days (share of years)Highly likelyevent-days recorded in 90% or more of years
event-days (share of years)Likelyevent-days recorded in 10% to under 90% of years
event-days (share of years)Possibleevent-days recorded in some years but under 10% of years
lightning strike-daysHighly likelycloud-to-ground strikes on 1 or more days per year

Intensity bands: historical frequency (Storm Events)

Source: 6

HazardBandYearsEventscounty-coded recordsYears in periodEvents per yearevents / years
Hail1.00-1.99 in1996 to 20255300.167
Hail2.00 in+1996 to 20250300
Thunderstorm Wind (counted as NRI Strong Wind)50-64 kt1996 to 202514300.467
Thunderstorm Wind (counted as NRI Strong Wind)65 kt+1996 to 20251300.0333
Thunderstorm Wind (counted as NRI Strong Wind)unmeasured or below 50 kt1996 to 20250300
TornadoEF0-11996 to 20251300.0333
TornadoEF2-31996 to 20250300
TornadoEF4-51996 to 20250300
Tornadounrated (EFU)1996 to 20250300

The bands show how often events of each severity were recorded in this county, to profile how severe events have been (FEMA's probability item asks for the range of intensities).

Hail smaller than 1 inch is not counted: on 2010-01-05 the National Weather Service raised its severe-hail threshold from 3/4 inch to 1 inch, so smaller reports became less common after 2009 (NWS Service Change Notice 09-52). NRI hail frequency uses a 0.75 inch threshold.

Optional: future conditions. Not a required item in the 2025 FEMA Local Mitigation Planning Policy Guide; some states ask for it. The federal Climate Mapping for Resilience and Adaptation (CMRA) site gives county exposure to future climate conditions (https://resilience.climate.gov/).

Supports FEMA checklist item B1-f: hazards that vary across jurisdictions

Range of census tract risk within the county

Source: 5

HazardTractsrated of allNRI risk score, 0 to 100Tracts by rating
MinMedianMax
Coastal Flooding21 of 2373.886.996.6Relatively High 1, Relatively Moderate 7, Relatively Low 10, Very Low 3, No Rating 2
Cold Wave23 of 2318.324.028.7Relatively Low 22, Very Low 1
Drought9 of 2377.286.292.1Relatively Moderate 1, Relatively Low 7, Very Low 1, No Rating 14
Earthquake23 of 2310.840.657.7Relatively Low 10, Very Low 13
Hail23 of 231.13.08.0Very Low 23
Heat Wave23 of 233.210.819.8Relatively Low 1, Very Low 22
Hurricane23 of 2354.276.384.0Relatively Moderate 5, Relatively Low 18
Ice Storm23 of 233.021.841.6Relatively Low 1, Very Low 22
Inland Flooding23 of 230.818.469.3Relatively Moderate 4, Relatively Low 10, Very Low 9
Landslide23 of 2310.032.356.5Very Low 23
Lightning23 of 2317.448.165.7Relatively Moderate 11, Relatively Low 11, Very Low 1
Strong Wind23 of 2319.649.967.3Relatively Moderate 8, Relatively Low 14, Very Low 1
Tornado23 of 233.920.230.4Relatively Low 1, Very Low 22
Tsunami0 of 23Insufficient Data 23
Wildfire22 of 2319.943.466.1Very Low 22, No Rating 1
Winter Weather23 of 2322.140.252.8Relatively Moderate 1, Relatively Low 22

Drought: Agriculture is all of NRI's expected annual loss for this hazard in the county, so the tract range mostly reflects where crop and livestock value is.

Rated tracts only: No Rating (score 0.0), Not Applicable and Insufficient Data tracts are counted but not used for the minimum, median and maximum.

The score ranks a tract against all U.S. tracts (100 = highest). The rating is FEMA's category for the tract's risk value, computed differently, so the two can disagree.

Frequency data for cold wave, drought, hail, heat wave, ice storm, lightning, strong wind and winter weather are county-wide or coarse (49 km grid or NWS zone), the same for every jurisdiction; the tract range mostly reflects where buildings and people are (crop and livestock value where a line above names agriculture).

Each jurisdiction (starting figures from federal data)

Sources: 1, 3, 4, 6

JurisdictionTypePlan statusRepetitive lossFMA RL and SRL (44 CFR 77.2); repeat-flood, any definitionPublic Assistance to this jurisdictionFEMA records matched by applicant name; federal share obligated, nominal dollarsEvent records naming this placeall years; since its planNotes
Newport cityCityApproved, expires 2031-03-31FMA RL 6, SRL 7; any 25$2,112,542.0515 total; 2 since its planAlso approved under plan 108398 (2022 Newport Hazard Mitigation Plan Update, expires 2027-12-13). FEMA's plan status map shows one plan per jurisdiction and may show one of these; this packet uses the approved plan that expires last. Includes $108,811.44 for declarations not counted as hazard incidents (DR-4505-RI).
Jamestown townTownApproved, expires 2030-01-26FMA RL 0, SRL 0; any 1$745,391.087 total; 0 since its planIncludes $12,367.87 for declarations not counted as hazard incidents (DR-4505-RI).
Little Compton townTownApproved, expires 2029-08-06FMA RL 0, SRL 0; any 0$373,441.097 total; 0 since its planIncludes $6,418.54 for declarations not counted as hazard incidents (DR-4505-RI).
Middletown townTownApproved, expires 2031-03-31FMA RL 0, SRL 0; any 3$971,054.395 total; 0 since its planIncludes $328,399.18 for declarations not counted as hazard incidents (DR-4505-RI, EM-3255-RI).
Portsmouth townTownApproved, expires 2031-03-31FMA RL 0, SRL 0; any 8$772,236.0110 total; 0 since its planIncludes $15,902.03 for declarations not counted as hazard incidents (DR-4505-RI).
Tiverton townTownApproved, expires 2030-10-21FMA RL 0, SRL 0; any 3$774,189.7010 total; 1 since its planIncludes $359,746.89 for declarations not counted as hazard incidents (DR-4505-RI).

Repetitive-loss counts are for whole NFIP communities, which can extend beyond this county (see the note in B2-c).

County Public Assistance in B1-d also includes applicants filed under the county that are not jurisdictions in this plan (for example state agencies, special districts and nonprofits), so the jurisdiction rows add up to less.

Supports FEMA checklist items B2-a and B2-b: vulnerability and potential impacts

Local data needed

The table below gives county-level starting figures; the plan describes impacts for each jurisdiction and its own assets.

No county-level plan row in FEMA data, so there is no approval date to count from.

  • Critical facilities and lifelines per hazard
  • A problem statement per jurisdiction per hazard
  • Changes in development in hazard-prone areas since the last approval, or a statement of none (E1-a)
  • Future assets

County-level starter: exposure, expected annual loss and damage since the plan

Sources: 1, 2, 3, 5, 6, 7

HazardBuilding exposuremodeled dollarsAgriculture exposuremodeled dollarsPopulation exposedpeopleEAL buildingsmodeled dollars per yearEAL agriculturemodeled dollars per yearCost of expected deaths and injuriesFEMA's dollar value per year, not property damageEAL as % of exposurebuildings; agriculture where notedStorm Events damage since plancounty-coded records, property plus crops, nominal dollarsZone-level damage since planproperty plus crops, reported for the zonePublic Assistance since plannominal dollars; see noteNote
Coastal Flooding$2,935,679,214n/a8,904$750,879n/a$2,6400.0256%
Cold Wave$21,245,795,484$24,823,83685,564$167$1,502$241,733under 0.0001%
Droughtn/a$13,801,681n/an/a$97,999n/a0.71% (agriculture)NRI has no building exposure for this hazard; agriculture shown
Earthquake$35,722,844,870n/a85,643$415,884n/a$67,3880.00116%
Hail$21,245,797,402$24,823,83685,564$2,478$94$880under 0.0001%
Heat Wave$21,245,795,484$24,823,83685,564under $1$1,498$206,721under 0.0001%
Hurricane$21,241,551,434$24,823,83685,531$2,106,480$218,570$57,2880.00992%
Ice Storm$21,034,936,848n/a85,031$37,701n/a$3,2420.000179%
Inland Flooding$21,206,688,515$804,1034,962$8,656,883under $1$11,626n/a (see note)NRI counts the full building value of any census block with some flood loss; this is not the value of buildings in the floodplain. Use local FIRM overlays for B2-a/B2-b.
Landslide$231,811,312n/a824$23n/a$10under 0.0001%
Lightning$21,245,797,402n/a85,564$14,349n/a$266,294under 0.0001%
Strong Wind$21,245,797,402$24,823,83685,564$100,969$1$329,2110.000475%
Tornado$21,245,797,402$24,823,83685,564$175,046$138$43,7070.000824%
Tsunamin/an/an/an/an/an/aNRI publishes no building exposure for this county
Wildfire$4,605,555,392$8,843,14616,921$5,114$1$4160.000111%
Winter Weather$21,245,795,484$24,823,83685,564$8,128$7$32,536under 0.0001%

Totals since the plan: not available. No county-level plan row in FEMA data, so there is no approval date to count from.

FEMA does not split Public Assistance by hazard. A declaration mapped to several hazards is listed under each of them with its full amount, so the per-hazard column does not add up to the total; the unit total counts each declaration once.

NRI computes earthquake exposure on its own basis, so it exceeds the county building value in B2-a.

Supports FEMA checklist item B2-a: vulnerability (county context)

County context

Source: 5

MeasureValue
Population85,564
Building value (total, not at risk)$21,245,797,402
Agriculture value (total, not at risk)$24,823,836
NRI risk rating (all hazards)Very Low
Expected annual loss, buildings and agriculture, all hazards$12,593,911
Expected annual loss, population equivalence, all hazards (NRI values each statistical life at $13.7M; a modeled value of expected deaths and injuries, not property damage)$1,263,690
Social vulnerability ratingVery Low
Community resilience ratingVery High
NRI versionDecember 2025

FEMA's all-hazard expected annual loss adds buildings, agriculture and population equivalence; this table gives the property part and the population-equivalence part as separate rows.

Social vulnerability: higher means people are more likely to be harmed and slower to recover. Community resilience: lower means the community is less able to recover. High social vulnerability and low resilience both raise the NRI risk rating.

Supports FEMA checklist item B2-c: repetitive loss properties

Repetitive loss in this county, both definitions

Sources: 1, 4

DefinitionPropertiesSevere repetitive lossProperties
Repetitive loss, FMA definition (44 CFR 77.2)6Severe repetitive loss, FMA definition (44 CFR 77.2)7
Repetitive loss, NFIP insurance definition40Severe repetitive loss, NFIP insurance definition5

The state NFIP coordinator's list, the source FEMA's Handbook names, often uses the NFIP insurance definition (second row).

Repeat-flood properties: county total and NFIP communities

Sources: 1, 4

ScopeRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
County total6740540117
of which: Tiverton town0030301
of which: Jamestown town0010100
of which: Middletown town0030301
of which: Newport city6725525113
of which: Portsmouth town0080802

Repeat-flood properties by jurisdiction in the plan (NFIP community)

Sources: 1, 4

JurisdictionNFIP community IDRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
Newport city4454036725525113
Jamestown town4453990010100
Little Compton town4400350000000
Middletown town4454010030301
Portsmouth town4454050080802
Tiverton town4400120030301

Counts by occupancy group for each jurisdiction are in the Excel file, sheet "B2-c Jurisdictions".

Jurisdiction rows are whole NFIP communities and need not add up to the county total: a community that extends into another county is counted in full on each jurisdiction row, while the county table counts only its part in this county.

County repeat-flood properties by occupancy group

Sources: 1, 4

Occupancy groupRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
single-family residential011911918
2 to 4 unit residential0040401
other residential0000000
non-residential661741708
not reported0000000

FEMA's occupancy groups have no institutional class; institutional properties are counted in non-residential or other residential in the table by occupancy group.

FMA RL and FMA SRL are the Flood Mitigation Assistance definitions (44 CFR 77.2), the ones the FEMA Local Mitigation Planning Policy Guide cites. NFIP repetitive loss (the FEMA insurance definition) is 2 or more claims over $1,000 in 10 years, and a property can leave that group once it is mitigated. Also shown: NFIP severe repetitive loss, any category, mitigated and currently insured. The Methods page gives the OpenFEMA field details.

Counts are aggregates of FEMA's public NFIP Multiple Loss Properties file (FEMA's data date 2026-08-02; file version 2026-08-04). No property is identified. County assignment is FEMA's geocode.

In this county 0 properties are FMA repetitive loss but not NFIP repetitive loss, and 34 properties are NFIP repetitive loss but not FMA repetitive loss.

Exact counts; no count suppression.

Sources

Tables cite these sources by number. The full list, for the plan's bibliography (FEMA review item A4-a):

  1. FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-29T134039Z, pulled 2026-09-30, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)
  2. FEMA, OpenFEMA DisasterDeclarationsSummaries v2, version 2026-09-29T162832Z, pulled 2026-09-30, https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries (API)
  3. FEMA, OpenFEMA PublicAssistanceFundedProjectsSummaries v1, version 2026-09-29T150754Z, pulled 2026-09-30, https://www.fema.gov/api/open/v1/PublicAssistanceFundedProjectsSummaries (API)
  4. FEMA, OpenFEMA NfipMultipleLossProperties v1, version 2026-08-04T164045Z, pulled 2026-09-30, https://www.fema.gov/api/open/v1/NfipMultipleLossProperties (API)
  5. FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-30, https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_Counties.zip (download, 25 MB), https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_CensusTracts.zip (download, 635 MB)
  6. NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-30, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/
  7. NOAA National Weather Service, NWS county-public forecast zones correlation file, version bp03mr20 to bp16ap26 (11 files; newest bp16ap26), pulled 2026-09-30, https://www.weather.gov/gis/ZoneCounty
  8. U.S. Census Bureau, Census 2024 Gazetteer, 2020 place by county, CT county-to-cousub crosswalk, version 2024-gazetteer, pulled 2026-09-30, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_counties_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_cousubs_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_place_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_unsd_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_elsd_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_scsd_national.zip, https://www2.census.gov/geo/docs/reference/codes2020/national_place_by_county2020.txt, https://www2.census.gov/geo/docs/reference/ct_change/ct_cou_to_cousub_crosswalk.xlsx (used to match place names and codes; no table prints its values)

What this packet is and what the plan adds

This packet is the federal data for the plan's risk assessment (the summary on page 1 says how it is organized); the plan and FEMA's review decide whether each item is met.

The plan adds what only the community has: local data on assets, critical facilities, development and each jurisdiction's impacts; local hazard history, including state-declared emergencies; the mitigation strategy; and adoption.

How the federal data are built: National Risk Index values are FEMA's model, not counts of events. Storm Events is more complete from 1996; zone-level records are placed by forecast zone, not by location in the county. Public Assistance for a jurisdiction is matched by applicant name. The Methods page gives every rule and the known edge cases.

OpenFEMA disclaimer

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).

Reuse, citation and corrections

Reuse and citation: Hazard Plain text and tables are licensed under Creative Commons Attribution 4.0 International (CC BY 4.0, https://creativecommons.org/licenses/by/4.0/); credit Hazard Plain and the release. The underlying federal data are public domain; OpenFEMA data are also subject to the OpenFEMA terms and conditions.

Cite this: Hazard Plain (2026). Newport County, RI: risk-assessment baseline packet, release 2026-10 (data as of 2026-09-30; County FIPS 44005). Automated baseline. https://hazardplain.org/ri/44005/ Built from FEMA OpenFEMA, the FEMA National Risk Index and NOAA NCEI Storm Events; source versions in the packet's Sources list.

Corrections: to report an error, name the packet, the table and what your records show. Contact: contact@hazardplain.org