Hazard Plain Preview: automated baseline

Carroll County, NH

Risk-assessment baseline packet

Unit
County area 33003
Release
2026-10
As of
2026-09-28
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.

A starting point for the plan's risk assessment (FEMA Local Mitigation Plan Review Tool, Element B). It does not replace local data or FEMA review. Section headings say which FEMA review item each table supports; whether an item is satisfied is decided by the plan and its reviewers.

Hazard Plain release 2026-10, as of 2026-09-28. Independent product; not a FEMA document.

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

FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-26T121003Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)

FEMA, OpenFEMA DisasterDeclarationsSummaries v2, version 2026-09-27T010817Z, pulled 2026-09-28, https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries (API)

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

FEMA, OpenFEMA NfipMultipleLossProperties v1, version 2026-08-04T164045Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/NfipMultipleLossProperties (API)

Plan status for every jurisdiction listed in this county: 17 rows, in the section "Plan clock: Plan status for every jurisdiction listed in this county" after these cover pages.

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

Plan clock

Plan status for every jurisdiction listed in this county

JurisdictionTypeStatusPlanApprovedExpiresDays to expirynegative = days since expiryUpdate underwayNotes
Albany townTownApproved, expires 2029-06-24Albany, NH Hazard Mitigation Plan Update 2024 (FEMA plan 109764)2024-06-252029-06-241,000
Bartlett townTownApproved, expires 2031-04-21Bartlett and Hart's Location, NH Multi-Jurisdictional Hazard Mitigation Plan Update 2026 (FEMA plan 111664)2026-04-222031-04-211,666
Brookfield townTownApproved, expires 2029-07-17Wakefield & Brookfield, NH Multi-Jurisdictional Hazard Mitigation Plan 2024 (FEMA plan 109370)2024-07-182029-07-171,023
Conway townTownApproved, expires 2030-07-01Conway, NH Hazard Mitigation Plan Update 2025 (FEMA plan 110865)2025-07-022030-07-011,372
Eaton townTownApproved, expires 2029-03-14Eaton Hazard Mitigation Plan Update 2023 (FEMA plan 109037)2024-03-152029-03-14898
Effingham townTownApproved, expires 2030-07-31Town of Effingham, NH Hazard Mitigation Plan Update 2025 (FEMA plan 110962)2025-08-012030-07-311,402
Freedom townTownApproved, expires 2027-05-31Town of Freedom, NH Hazard Mitigation Plan Update 2022 (FEMA plan 108325)2022-06-012027-05-31245
Hart's Location townTownApproved, expires 2031-04-21Bartlett and Hart's Location, NH Multi-Jurisdictional Hazard Mitigation Plan Update 2026 (FEMA plan 111664)2026-04-222031-04-211,666
Jackson townTownApproved, expires 2030-05-18Jackson, NH Hazard Mitigation Plan Update 2025 (FEMA plan 110633)2025-05-192030-05-181,328
Madison townTownApproved, expires 2029-02-11Madison Hazard Mitigation Plan Update 2023 (FEMA plan 109325)2024-02-122029-02-11867
Moultonborough townTownApproved, expires 2030-08-07Town of Moultonborough, New Hampshire Hazard Mitigation Plan Update, 2025 2019 (FEMA plan 111005)2025-08-082030-08-071,409
Ossipee townTownApproved, expires 2027-03-22Town of Ossipee, NH Hazard Mitigation Plan Update 2022 (FEMA plan 108205)2022-03-232027-03-22175
Sandwich townTownApproved, expires 2030-05-18Sandwich, NH Hazard Mitigation Plan Update 2025 (FEMA plan 110527)2025-05-192030-05-181,328
Tamworth townTownApproved, expires 2030-06-24Tamworth, NH Hazard Mitigation Plan Update 2025 (FEMA plan 110556)2025-06-252030-06-241,365
Tuftonboro townTownApproved, expires 2027-07-18Town of Tuftonboro, New Hampshire Hazard Mitigation Plan Update 2022 (FEMA plan 108414)2022-07-192027-07-18293
Wakefield townTownApproved, expires 2029-07-17Wakefield & Brookfield, NH Multi-Jurisdictional Hazard Mitigation Plan 2024 (FEMA plan 109370)2024-07-182029-07-171,023
Wolfeboro townTownApproved, expires 2030-08-18Town of Wolfeboro, New Hampshire Hazard Mitigation Plan Update, 2025 (FEMA plan 111003)2025-08-192030-08-181,420

Source

FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-26T121003Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)

Supports B1-a: hazards

Hazards NRI does not cover: check locally

  • 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)

Rank by EALHazardNRI risk ratingEAL ratingEAL buildingsmodeled dollars per yearEAL agriculturemodeled dollars per yearEAL population equivalencestatistical value of life and injury, $13.7M per life, not property damageEAL total (see note)modeled dollars per yearStorm Events records since 1996countEvidence for an omissionNRI Not Applicable, no declaration and no Storm Events record since 1996Storm Events coverage note
1Inland FloodingRelatively ModerateRelatively Moderate$22,442,475$64,639$55,222$22,562,337130
2HurricaneRelatively ModerateRelatively Moderate$4,676,841$25,085$68,700$4,770,6262
3Cold WaveRelatively LowRelatively Low$122$1,896$798,038$800,05725Includes 1 Frost/Freeze record, event types the NRI definition of this hazard leaves out.
4Ice StormRelatively HighRelatively High$673,574$37,948$711,5222
5EarthquakeRelatively LowRelatively Low$516,079$43,837$559,916Not in Storm Events. Storm Events coverage of this hazard is limited; absence is not evidence of low risk.
6LightningRelatively ModerateRelatively Moderate$39,967$426,559$466,52623
7Winter WeatherRelatively HighRelatively High$117,306$10$305,965$423,281237
8TornadoVery LowVery Low$61,558$34$165,214$226,8063
9Strong WindRelatively LowRelatively Low$49,017$52$170,241$219,310213Includes 18 High Wind records and 27 Strong Wind records, event types the NRI definition of this hazard leaves out.
10Heat WaveVery LowVery Lowunder $1$1,952$176,643$178,5953
11HailVery LowVery Low$4,151$934$33,945$39,03084
12WildfireVery LowVery Low$17,518$1$1,306$18,8251
13LandslideRelatively LowRelatively Low$12,135$4,442$16,5770No recorded events in Storm Events since 1996 (data through 2026-06-30). Storm Events coverage of this hazard is limited; absence is not evidence of low risk.
14AvalancheRelatively LowVery Lowunder $1$3,635$3,6350No recorded events in Storm Events since 1996 (data through 2026-06-30).
15DroughtNo RatingNo Expected Annual Losses$0$019
Coastal FloodingNot ApplicableNot Applicable0NRI rates coastal flooding Not Applicable for this county, and no federal declaration for this county names it.No recorded events in Storm Events since 1996 (data through 2026-06-30).
TsunamiNot ApplicableNot Applicable0NRI rates tsunami Not Applicable for this county, and no federal declaration for this county names it.No recorded events in Storm Events since 1996 (data through 2026-06-30). Storm Events coverage of this hazard is limited; absence is not evidence of low risk.
Volcanic ActivityNot ApplicableNot Applicable0NRI rates volcanic activity Not Applicable for this county, and no federal declaration for this county names it.No recorded events in Storm Events since 1996 (data through 2026-06-30). Storm Events coverage of this hazard is limited; absence is not evidence of low risk.

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

Sources

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, 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)

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

Check your state hazard mitigation plan's hazard list for this county; explain any hazard you drop.

Supports B1-b: location

Where each hazard occurs

HazardLocationCensus tracts ratedrated of all tracts
AvalancheCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.15 of 19
Coastal FloodingCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.0 of 19
Cold WaveAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.19 of 19
DroughtAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.0 of 19
EarthquakeCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.19 of 19
HailAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.19 of 19
Heat WaveAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.19 of 19
HurricaneCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.19 of 19
Ice StormAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.19 of 19
Inland FloodingThe 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.19 of 19
LandslideCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.19 of 19
LightningAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.19 of 19
Strong WindAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.19 of 19
TornadoCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.19 of 19
TsunamiCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.0 of 19
Volcanic ActivityCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.0 of 19
WildfireCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.19 of 19
Winter WeatherAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.19 of 19

Source

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, 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)

Supports B1-c: extent

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

HazardScaleRecordscount, yearsObserved rangeWorst recorded eventMost damaging (when different)How it applies to membersNote
Avalanchenone (count and damage)0Physical measure: in event narratives only; local data required.
Coastal Flood, Storm Surge/Tidenone in data (FIRM for depth)0Flood depth: see the FEMA Flood Insurance Rate Map.
Cold/Wind Chill, Extreme Cold/Wind Chillwind chill24, 1998 to 2026 (24 zone-level)1 day to 6 days (median 2 days); 21 with a recorded value6 consecutive days, 2000-01-13 to 2000-01-18, zone-levelZone-level records: applies countywide; national data do not locate these events within the county.Wind chill: in event narratives only; local data required.
Frost/Freeze (outside NRI Cold Wave definition)crop damage1, 2023 to 2023 (1 zone-level)No crop damage reported in 1 records.Zone-level records: applies countywide; national data do not locate these events within the county.Temperature: in event narratives only; local data required.
DroughtUS Drought Monitor D-scale19, 1999 to 2026 (19 zone-level)26 days to 212 days (median 46 days); 8 with a recorded value212 days (7 months), 2025-11-01 to 2026-05-31, a run of 7 consecutive Storm Events drought records, zone-levelDrought, 2020-10-01, $100,000 property; $500,000 crops, reported for the zone (2020 dollars)Zone-level records: applies countywide; national data do not locate these events within the county.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)0No Storm Events record; local data required (e.g., USGS).
Hailhail size (inches)91, 1984 to 20250.75 in to 2.75 in (median 1 in); 91 with a recorded value2.75 in hail, 1998-08-24Event records naming member places: Conway town (11 records), Madison town (7 records), Jackson town (4 records), Sandwich town (3 records), Brookfield town (2 records), Effingham town (2 records), Tamworth town (2 records), Wolfeboro town (2 records), Freedom town (1 record), Ossipee town (1 record).
Excessive Heat, Heatheat index (narratives)3, 1998 to 2024 (3 zone-level)2 days; 1 with a recorded value2 consecutive days, 2024-06-19 to 2024-06-20, zone-levelZone-level records: applies countywide; national data do not locate these events within the county.Heat index: in event narratives only; local data required. Heat records from November to March (unseasonable warmth, not a heat wave) are counted but not used for the longest run.
Hurricane, Tropical Storm, Tropical DepressionSaffir-Simpson2, 2011 to 2020 (2 zone-level)Strongest recorded (records with damage, a wind speed or direct casualties first, then storm type, category and wind): Tropical Storm record, 2020-08-04, $50,000 property; crops not reported, reported for the zone (2020 dollars), 1 direct death (reported for the zone); NWS zone NHZ004 (NORTHERN CARROLL), zone-level: may include parts of neighboring countiesZone-level records: applies countywide; national data do not locate these events within the county.Storm Events files every zone of a storm's episode under the storm's event type and category, so a Hurricane (Typhoon) record, especially an inland or remnant one, does not by itself mean hurricane-force winds here; read the damage and wind columns.
Ice StormSperry-Piltz (local data)2, 1998 to 2008 (2 zone-level)Ice Storm, 1998-01-07, $5,450,000 property; crops not reported, reported for the zone (1998 dollars); NWS zone NHZ004 (NORTHERN CARROLL), zone-level: may include parts of neighboring countiesZone-level records: applies countywide; national data do not locate these events within the county.Ice thickness: in event narratives only; local data required.
Flash Flood, Flood, Lakeshore Flooddamage and flood days (FIRM for depth)130, 1996 to 2026 (26 zone-level)Flash Flood, 2011-08-28, $2,400,000 property; $0 crops (2011 dollars)Event records naming member places: Conway town (30 records), Madison town (10 records), Jackson town (6 records), Bartlett town (4 records), Tamworth town (4 records), Freedom town (2 records), Ossipee town (2 records), Sandwich town (2 records), Wolfeboro town (2 records), Tuftonboro town (1 record). Zone-level records (26) apply countywide.Flood depth: see the FEMA Flood Insurance Rate Map. Storm Events damage can be $0 or blank even for a major flood, so the worst record here may not be the worst flood; compare FEMA Public Assistance by declaration in B1-d.
Debris Flownone (count and damage)0Physical measure: in event narratives only; local data required.
Lightningannualized frequency (the measure FEMA's Local Mitigation Planning Handbook names)23, 1998 to 2020Lightning, 2005-07-19, $200,000 property; crops not reported (2005 dollars)Event records naming member places: Conway town (4 records), Ossipee town (2 records), Wakefield town (2 records), Wolfeboro town (2 records), Effingham town (1 record), Madison town (1 record), Sandwich town (1 record), Tuftonboro town (1 record).Storm Events lists lightning with damage or casualties; physical measure in event narratives only; local data required.
High Wind and Strong Wind (outside NRI Strong Wind definition)wind speed (kt and mph)45, 1996 to 2021 (45 zone-level)34 kt (39 mph) to 61 kt (70 mph) (median 50 kt (58 mph)); 18 with a recorded value61 kt (70 mph) estimated gust, High Wind, 2017-10-30; NWS zone NHZ006 (SOUTHERN CARROLL), zone-level: may include parts of neighboring countiesHigh Wind, 2012-10-29, $100,000 property; $0 crops, reported for the zone (2012 dollars)Zone-level records: applies countywide; national data do not locate these events within the county.
Thunderstorm Windwind speed (kt and mph)195, 1970 to 202650 kt (58 mph) to 87 kt (100 mph) (median 50 kt (58 mph)); 168 with a recorded value87 kt (100 mph) estimated gust, Thunderstorm Wind, 2026-06-18, 1 direct injuryThunderstorm Wind, 1994-07-26, $5,000,000 property; crops not recorded (1994 dollars)Event records naming member places: Tamworth town (13 records), Conway town (12 records), Ossipee town (11 records), Sandwich town (8 records), Tuftonboro town (8 records), Madison town (7 records), Wakefield town (7 records), Brookfield town (6 records), Effingham town (5 records), Bartlett town (4 records); and 3 more member places (see the XLSX file).
TornadoEnhanced Fujita (F before Feb 2007)10, 1963 to 2020F/EF0 to F/EF2 (median F/EF1); 9 with a recorded valueEF2 tornado, 2008-07-24, 19.99 mi within this county, 880 yd wide, $347,000 property; crops not reported (2008 dollars)Tornado, 1986-08-07, $2,500,000 property; crops not recorded (1986 dollars)Event records naming member places: Effingham town (1 record).From 1996 on, tornado records are per-county segments and length is the path length within this county (NWS Instruction 10-1605); records before 1996 may give the whole path length, including the path outside this county, and before 1996 a tornado is listed once, under the county where it began, with the whole path's rating; counties farther along the path may not list it. Length is not used to rank tornadoes.
Tsunaminone (count and damage)0Physical measure: in event narratives only; local data required.
Volcanic Ash, Volcanic AshfallVolcanic Explosivity Index (local data)0Physical measure: in event narratives only; local data required.
Wildfireacres burned (local data)1, 2022 to 2022 (1 zone-level)No damage reported in 1 records.Zone-level records: applies countywide; national data do not locate these events within the county.Acres burned: in event narratives only; local data required.
Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleetnone in data (snowfall local)237, 1996 to 2026 (237 zone-level)No damage reported in 237 records.Zone-level records: applies countywide; national data do not locate these events within the county.Snow depth: in event narratives only; local data required.

Where a hazard names more than 10 member places, the table lists the 10 with the most records; every place is in the XLSX file, sheet "B1-c Extent".

Storm Events records are more complete after 1996; before 1996 only Tornado (from 1950), Hail and Thunderstorm Wind (from 1955) exist. Zone-level records are placed with NWS zone-county files, which exist from 2020 on; an earlier record is placed by its zone number in the nearest later file only when its zone name matches that file, records from zones NWS renumbered are placed by name or left out, and a record whose zone is in no known file is left out of every count, so counts before 2020 can be low. Some current zones are also missing from the NWS files, so recent counts can be low too.

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

Sources

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

NOAA National Weather Service, NWS county-public forecast zones correlation file, version bp03mr20 to bp16ap26 (11 files; newest bp16ap26), pulled 2026-09-28, https://www.weather.gov/gis/ZoneCounty

Supports B1-d: previous occurrences

Declaration rows
35
Counted incidents
28

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

Federal disaster declarations for this county

DeclaredIncident beganFEMA numberTypeTitleMapped hazardCounty Public Assistancefederal share obligated, nominal dollarsFlagsNotes
2024-07-102024-04-03DR-4799-NHMajor disasterSEVERE WINTER STORM AND FLOODINGWinter Weather (primary); also designated: Inland Flooding$585,713.22within last 5 years
2024-02-272023-12-17DR-4761-NHMajor disasterSEVERE STORM AND FLOODINGInland Flooding$677,864.34within last 5 years
2023-09-142023-07-09DR-4740-NHMajor disasterSEVERE STORMS AND FLOODINGInland Flooding$2,076,604.37within last 5 years
2023-03-152022-12-22DR-4693-NHMajor disasterSEVERE STORM AND FLOODINGInland Flooding$1,218,072.40within last 5 years
2020-04-032020-01-20DR-4516-NHMajor disasterCOVID-19 PANDEMICNon-natural, not counted$5,669,387.62
2020-03-132020-01-20EM-3445-NHEmergencyCOVID-19Non-natural, not countednone foundsame incident as DR-4516
2018-06-082018-03-13DR-4371-NHMajor disasterSEVERE WINTER STORM AND SNOWSTORMWinter Weather$99,362.77
2018-01-022017-10-29DR-4355-NHMajor disasterSEVERE STORM AND FLOODINGInland Flooding$290,590.22
2017-06-012017-03-14DR-4316-NHMajor disasterSEVERE WINTER STORMWinter Weather$97,728.49
2013-03-192013-02-08DR-4105-NHMajor disasterSEVERE WINTER STORM AND SNOWSTORMWinter Weather$111,808.75
2012-11-282012-10-26DR-4095-NHMajor disasterHURRICANE SANDYHurricane$14,017.98
2012-10-302012-10-26EM-3360-NHEmergencyHURRICANE SANDYHurricanenone foundsame incident as DR-4095
2011-11-012011-10-29EM-3344-NHEmergencySEVERE STORMHazard not mapped (severe storm title names no single hazard); not countednone found
2011-09-032011-08-26DR-4026-NHMajor disasterTROPICAL STORM IRENEHurricane$2,124,387.02
2011-08-272011-08-26EM-3333-NHEmergencyHURRICANE IRENEHurricanenone foundsame incident as DR-4026
2009-01-022008-12-11DR-1812-NHMajor disasterSEVERE WINTER STORMIce Storm$5,570.68
2008-12-132008-12-11EM-3297-NHEmergencySEVERE WINTER STORMWinter Weathernone foundsame incident as DR-1812
2008-09-052008-07-24DR-1787-NHMajor disasterSEVERE STORMS AND FLOODINGInland Flooding$97,433.72
2008-08-112008-07-24DR-1782-NHMajor disasterSEVERE STORMS, TORNADO, AND FLOODINGInland Flooding; Tornado$227,307.25
2007-04-272007-04-15DR-1695-NHMajor disasterSEVERE STORMS AND FLOODINGInland Flooding$2,355,689.74
2006-05-252006-05-12DR-1643-NHMajor disasterSEVERE STORMS AND FLOODINGInland Flooding$129,513.21
2005-09-192005-08-29EM-3258-NHEmergencyHURRICANE KATRINA EVACUATIONHurricane: evacuation support, not a local hazard event; not countednone found
2005-04-282005-03-11EM-3211-NHEmergencyRECORD SNOWWinter Weather$69,772.63
2005-03-302005-02-10EM-3208-NHEmergencyRECORD SNOWWinter Weather$73,551.85
2005-03-302005-01-22EM-3207-NHEmergencyRECORD AND/OR NEAR RECORD SNOWWinter Weather$43,188.59
2004-01-152003-12-06EM-3193-NHEmergencySNOWWinter Weather$50,857.27
1998-07-021998-06-12DR-1231-NHMajor disasterSEVERE STORMS AND FLOODINGInland Flooding; Winter Weathernone found
1998-01-151998-01-07DR-1199-NHMajor disasterSEVERE ICE STORM, RAINS AND HIGH WINDSIce Storm; Strong Windnone found
1996-01-031995-10-20DR-1077-NHMajor disasterEXCESSIVE RAINFALL, HIGH WINDS, AND FLOODINGInland Flooding (primary); also designated: Strong Windnone found
1993-03-161993-03-13EM-3101-NHEmergencyBLIZZARDS, HIGH WINDS & RECORD SNOWFALLWinter Weathernone found
1991-09-091991-08-18DR-917-NHMajor disasterHURRICANE BOB & SEVERE STORMSHurricanenone found
1990-08-291990-08-07DR-876-NHMajor disasterSEVERE STORMS & FLOODINGInland Floodingnone found
1987-04-161987-03-30DR-789-NHMajor disasterSEVERE STORMS & FLOODINGInland FloodingPA not declared for this county
1974-01-211974-01-21DR-411-NHMajor disasterHEAVY RAINS & FLOODINGInland Floodingnone found
1973-07-111973-07-11DR-399-NHMajor disasterSEVERE STORMS & FLOODINGInland Floodingnone found

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.

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

Statewide declarations

DeclaredIncident beganFEMA numberTypeTitleMapped hazardFlagsNotes
1953-07-021953-07-02DR-11-NHMajor disasterFOREST FIREWildfire

FEMA recorded these with designated area Statewide and no county. Listed on every county page in the state; not counted with county rows.

Source

FEMA, OpenFEMA DisasterDeclarationsSummaries v2, version 2026-09-27T010817Z, pulled 2026-09-28, https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries (API)

Previous occurrences by hazard, with explicit no-event rows

HazardStorm Events recordsfull periodSince plan approvalrecordsDuring plan reviewrecordsLast 5 yearsrecordsDeclared incidentsdistinct incidentsDeclared since approvaldistinct incidentsPeriodStatement
Avalanche0001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Coastal Flooding0001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Cold Wave25301996 to 2026-06-30Includes 1 Frost/Freeze record, event types the NRI definition of this hazard leaves out.
Drought19801996 to 2026-06-30
Earthquake000No Storm Events record; local data required (e.g., USGS).
Hail911201955 to 2026-06-30
Heat Wave3101996 to 2026-06-30
Hurricane2031996 to 2026-06-30
Ice Storm2021996 to 2026-06-30
Inland Flooding13045151996 to 2026-06-30
Landslide0001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Lightning23001996 to 2026-06-30
Strong Wind2402421955 to 2026-06-30Includes 18 High Wind records and 27 Strong Wind records, event types the NRI definition of this hazard leaves out.
Tornado10011950 to 2026-06-30
Tsunami0001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Volcanic Activity0001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Wildfire1101996 to 2026-06-30
Winter Weather23728111996 to 2026-06-30

Sources

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

FEMA, OpenFEMA DisasterDeclarationsSummaries v2, version 2026-09-27T010817Z, pulled 2026-09-28, https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries (API)

NOAA National Weather Service, NWS county-public forecast zones correlation file, version bp03mr20 to bp16ap26 (11 files; newest bp16ap26), pulled 2026-09-28, https://www.weather.gov/gis/ZoneCounty

Notable Storm Events records

DateEvent typeMagnitude or extentDamagenominal dollarsDirect deaths, injuriesindirect not countedLocationFlagsWhy listed
2026-06-18Thunderstorm Wind87 kt (100 mph) estimated gust$100,000 property; $0 crops (2026 dollars)0, 1MIRROR LAKEwithin last 5 yearsB1-c worst recorded: Thunderstorm Wind
2024-06-19Excessive Heat$0 property; $0 crops, reported for the zone (2024 dollars)0, 0NWS zone NHZ006 (SOUTHERN CARROLL), zone-level: may include parts of neighboring countieswithin last 5 yearsB1-c worst recorded: Excessive Heat, Heat
2020-08-04Tropical Storm$50,000 property; crops not reported, reported for the zone (2020 dollars)1, 0NWS zone NHZ004 (NORTHERN CARROLL), zone-level: may include parts of neighboring countiesdeaths or injuries recorded
2017-10-30High Wind61 kt (70 mph) estimated gust$0 property; crops not reported, reported for the zone (2017 dollars)0, 0NWS zone NHZ006 (SOUTHERN CARROLL), zone-level: may include parts of neighboring countiesB1-c worst recorded: High Wind and Strong Wind (outside NRI Strong Wind definition)
2014-07-02Lightning$0 property; $0 crops (2014 dollars)0, 2EAST MADISONdeaths or injuries recorded
2011-08-28Flash Flood$2,400,000 property; $0 crops (2011 dollars)0, 0BARTLETT to GLENB1-c worst recorded: Flash Flood, Flood, Lakeshore Flood
2008-07-24TornadoEF2, 19.99 mi within this county, 880 yd wide$347,000 property; crops not reported (2008 dollars)0, 0SOUTH WOLFEBORO to EFFINGHAM FALLSB1-c worst recorded: Tornado
2005-07-19Lightning$200,000 property; crops not reported (2005 dollars)0, 0SANDWICHB1-c worst recorded: Lightning
2000-01-13Extreme Cold/Wind Chilldamage not reported0, 0NWS zone NHZ004 (NORTHERN CARROLL), zone-level: may include parts of neighboring countiesB1-c worst recorded: Cold/Wind Chill, Extreme Cold/Wind Chill
1999-12-11Strong Windspeed not recordeddamage not reported0, 2NWS zone NHZ004 (NORTHERN CARROLL), zone-level: may include parts of neighboring countiesdeaths or injuries recorded
1998-08-24Hail2.75 indamage not reported0, 0TAMWORTH to FREEDOMB1-c worst recorded: Hail
1998-01-07Ice Storm$5,450,000 property; crops not reported, reported for the zone (1998 dollars)0, 0NWS zone NHZ004 (NORTHERN CARROLL), zone-level: may include parts of neighboring countiesB1-c worst recorded: Ice Storm

The full list is in the XLSX file, sheet "B1-d Storm Events history" (783 rows).

Storm Events records are more complete after 1996; before 1996 only Tornado (from 1950), Hail and Thunderstorm Wind (from 1955) exist. Zone-level records are placed with NWS zone-county files, which exist from 2020 on; an earlier record is placed by its zone number in the nearest later file only when its zone name matches that file, records from zones NWS renumbered are placed by name or left out, and a record whose zone is in no known file is left out of every count, so counts before 2020 can be low. Some current zones are also missing from the NWS files, so recent counts can be low too.

Sources

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

NOAA National Weather Service, NWS county-public forecast zones correlation file, version bp03mr20 to bp16ap26 (11 files; newest bp16ap26), pulled 2026-09-28, https://www.weather.gov/gis/ZoneCounty

FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-26T121003Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)

State-declared emergencies are not in federal data. Add them from your state emergency management agency.

FEMA's declaration data list no tribal or special-area declarations for this state.

Supports B1-e: probability

Probability: FEMA annualized frequency and descriptor per hazard

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
Avalanche0.01events per yearabout 1 in 100 yearsPossibleFEMA annualized frequency (modeled)01994 to 2023 (30 years)see B1-f0.01 is NRI's minimum avalanche frequency for a county in an avalanche susceptibility zone; NRI records no avalanche here, so the descriptor reflects the floor, not local events.
Coastal Floodingevents per year at a location (modeled)not shownmodeledsee B1-fNot Applicable in NRI for this county; no descriptor.
Cold Wave2.73event-days per yearabout 2.73 days per yearLikelyevent-days in 8 of 30 years, 1996 to 2025 (26.7%)51.32005-11-12 to 2024-11-12 (19 years)countywideNRI gives about 2.73 cold wave event-days a year here (its annualized frequency over 19 years; not its event count divided by the years), but Storm Events has a record in only 8 of 30 years. NRI counts from a different source that records far more events than Storm Events, so this descriptor reads much lower than NRI's frequency; read the two together. Frost/Freeze records are not counted in this descriptor: they record crop freezes, not cold waves.
Drought0.186event-days per yearabout 0.186 days per yearLikelyevent-days in 4 of 30 years, 1996 to 2025 (13.3%)702000 to 2025 (25.25 years; D3 and D4 only)countywide
Earthquake0.00174annual probability at a locationchance a given location in the county has at least minor-damage shaking in a year: 0.174%not shownmodeledsee B1-fDescriptor not assigned: the NRI value is the chance at a location in the county, not how often the hazard affects the county, and Storm Events does not record earthquakes.
Hail1.65events per yearabout 1.65 per yearHighly likelyFEMA annualized frequency (modeled)63.0 (modeled)1986 to 2023 (38 years)countywide
Heat Wave1.92event-days per yearabout 1.92 days per yearPossibleevent-days in 2 of 30 years, 1996 to 2025 (6.67%)34.32005-11-12 to 2024-11-12 (19 years)countywideNRI gives about 1.92 heat wave event-days a year here (its annualized frequency over 19 years; not its event count divided by the years), but Storm Events has a record in only 2 of 30 years. NRI counts from a different source that records far more events than Storm Events, so this descriptor reads much lower than NRI's frequency; read the two together.
Hurricane0.0849events per yearabout 1 in 12 yearsPossibleFEMA annualized frequency (modeled)321851 to 2024 (Atlantic)see B1-fNRI counts hurricane and tropical storm tracks passing within storm-force wind range; federal declarations are counted separately in B1-d and need not match.
Ice Storm1.29event-days per yearabout 1.29 days per yearPossibleevent-days in 2 of 30 years, 1996 to 2025 (6.67%)891946-12-31 to 2014-02-12 (67 years)countywideNRI gives about 1.29 ice storm event-days a year here (its annualized frequency over 67 years; not its event count divided by the years), but Storm Events has a record in only 2 of 30 years. NRI counts from a different source that records far more events than Storm Events, so this descriptor reads much lower than NRI's frequency; read the two together.
Inland Flooding2.64event-days per yearabout 2.64 days per yearLikelyevent-days in 23 of 30 years, 1996 to 2025 (76.7%)741996 to 2023 (28 years)see B1-f
Landslide1.33events per year (modeled)about 1.33 per yearHighly likelyFEMA annualized frequency (modeled)not shownmodeledsee B1-f
Lightning19.1days per year with a strikeabout 19.1 days per yearHighly likelyFEMA annualized frequency (modeled)not shown1995 to 2023 (29 years; CONUS)countywide
Strong Wind0.59events per yearabout 0.59 per yearLikelyFEMA annualized frequency (modeled)231986 to 2023 (38 years)countywide
Tornado0.106events per yearabout 1 in 9 yearsLikelyFEMA 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)not shownmodeledsee B1-fNot Applicable in NRI for this county; no descriptor.
Volcanic Activityannual probabilitynot shownmodeledsee B1-fNot Applicable in NRI for this county; no descriptor.
Wildfire0.0000174annual probability at a locationchance a given location in the county burns in a year: 0.00174%PossibleStorm Events records in 1 of 30 years, 1996 to 2025 (3.33%)not shownmodeledsee B1-fDescriptor from Storm Events, not NRI: the NRI value is the chance at a location in the county, not how often the hazard affects the county.
Winter Weather22.2event-days per yearabout 22.2 days per yearHighly likelyevent-days in 30 of 30 years, 1996 to 2025 (100%)4212005-11-12 to 2024-11-12 (19 years)countywide

FEMA annualized frequency (modeled) comes from the National Risk Index v1.20 (December 2025). It is not recorded events divided by years, and what it measures depends on the hazard. For most hazards it estimates how often the hazard affects this county each year: it counts events or event-days (drought, heat wave, cold wave, winter weather, ice storm and inland flooding are in days per year; lightning is the number of days per year with a recorded cloud-to-ground strike, from the NOAA Storm Prediction Center daily lightning climatology); it may count events in the surrounding area (hail, strong wind, tornado, hurricane and ice storm use a 49 km grid and buffers) and is averaged over the county's area; and some hazards use a minimum value for places with no recorded event. Earthquake, wildfire and coastal flooding are different: FEMA computes them for each census block and averages them over the county, so the value is the chance (for coastal flooding, the modeled number of floods per year) at a location in the county, which is lower than the chance that the hazard strikes somewhere in the county. Earthquake is the chance of at least minor-damage shaking (U.S. Geological Survey model); wildfire is the chance that a location burns in a large fire (U.S. Forest Service burn probability); coastal flooding comes from FEMA flood zones and NOAA high-tide flooding, so it can be above 1 where high-tide flooding is frequent. Tsunami is the value at the county's most exposed location, from recorded events and modeled return periods. For these four hazards the packet gives no "1 in N years" and takes the descriptor from Storm Events (none for earthquake) unless the value is 1 or more a year. Landslide is a U.S. Geological Survey modeled county rate spread by slope susceptibility. Volcanic activity is the chance that a volcano affecting the county erupts in a year. Drought counts only extreme and exceptional drought (D3 and D4). Source: FEMA, National Risk Index Technical Documentation v1.20, sections 5.2.2 (Table 5), 5.2.3, 7.4, 10.4, 16.5, 17.1, 17.3.1, 17.5, 20.3.1, 21.4, 22.4 and 6 to 23.

Sources

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, 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)

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

Descriptor scale used in this packet (defined per unit)

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

Sources

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, 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)

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

Intensity bands: historical frequency (Storm Events)

HazardBandYearsEventscounty-coded recordsYears in periodEvents per yearevents / years
Hail1.00-1.99 in1996 to 202547301.57
Hail2.00 in+1996 to 20252300.0667
Strong Wind (Thunderstorm Wind records)50-64 kt1996 to 2025157305.23
Strong Wind (Thunderstorm Wind records)65 kt+1996 to 20255300.167
Strong Wind (Thunderstorm Wind records)unmeasured or below 50 kt1996 to 20252300.0667
TornadoEF0-11996 to 20252300.0667
TornadoEF2-31996 to 20251300.0333
TornadoEF4-51996 to 20250300
Tornadounrated (EFU)1996 to 20250300

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.

Source

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

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.

Supports B1-f: variation across the planning area

Range of census tract risk within the county

HazardTractsrated of allRisk score minNRI score, 0 to 100MedianMaxTracts by ratingNote
Avalanche15 of 1955.760.262.6Very Low 15, Not Applicable 4
Coastal Flooding0 of 19Not Applicable 19
Cold Wave19 of 1929.744.360.5Relatively Moderate 7, Relatively Low 12National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Drought0 of 19No Rating 19National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Earthquake19 of 1931.249.462.9Relatively Low 17, Very Low 2
Hail19 of 1922.229.842.1Relatively Low 1, Very Low 18National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Heat Wave19 of 196.711.533.2Relatively Low 2, Very Low 17National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Hurricane19 of 1977.385.189.7Relatively Moderate 18, Relatively Low 1
Ice Storm19 of 1970.091.395.9Relatively High 10, Relatively Moderate 9National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Inland Flooding19 of 1939.478.796.5Very High 1, Relatively High 8, Relatively Moderate 9, Relatively Low 1
Landslide19 of 1968.387.596.9Relatively Moderate 2, Relatively Low 12, Very Low 5
Lightning19 of 1954.372.793.1Relatively High 5, Relatively Moderate 14National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Strong Wind19 of 1923.340.460.5Relatively Moderate 1, Relatively Low 18National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Tornado19 of 1914.024.136.1Relatively Low 3, Very Low 16
Tsunami0 of 19Not Applicable 19
Volcanic Activity0 of 19Not Applicable 19
Wildfire19 of 1957.067.271.9Relatively Low 6, Very Low 13
Winter Weather19 of 1982.593.997.6Very High 2, Relatively High 17National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.

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.

Source

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, 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)

Per-member block (Starter, confirm locally)

MemberTypePlan statusRepetitive lossFMA RL and SRL (44 CFR 77.2); repeat-flood, any definitionPublic Assistance matchedfederal share obligated, nominal dollarsEvent records naming this placeall years; since the member's planNotes
Albany townTownApproved, expires 2029-06-24FMA RL 0, SRL 0; any 0$10,817.270; 0
Bartlett townTownApproved, expires 2031-04-21FMA RL 0, SRL 0; any 6$2,246,361.618; 0
Brookfield townTownApproved, expires 2029-07-17FMA RL 0, SRL 0; any 0$9,929.318; 1
Conway townTownApproved, expires 2030-07-01FMA RL 2, SRL 1; any 5$214,291.8457; 3Includes $9,824.37 for declarations not counted as hazard incidents (DR-4516-NH).
Eaton townTownApproved, expires 2029-03-14FMA RL 0, SRL 0; any 0$270,972.990; 0
Effingham townTownApproved, expires 2030-07-31FMA RL 0, SRL 0; any 0$311,262.949; 0
Freedom townTownApproved, expires 2027-05-31FMA RL 0, SRL 0; any 1$872,620.126; 2
Hart's Location townTownApproved, expires 2031-04-21FMA RL 0, SRL 0; any 0$224,829.220; 0
Jackson townTownApproved, expires 2030-05-18FMA RL 0, SRL 0; any 0$204,933.2013; 1
Madison townTownApproved, expires 2029-02-11FMA RL 0, SRL 0; any 0$4,411.4925; 9
Moultonborough townTownApproved, expires 2030-08-07FMA RL 0, SRL 0; any 0$241,793.140; 0
Ossipee townTownApproved, expires 2027-03-22FMA RL 0, SRL 1; any 9$1,813,720.6716; 2
Sandwich townTownApproved, expires 2030-05-18FMA RL 0, SRL 0; any 0$319,645.2814; 0
Tamworth townTownApproved, expires 2030-06-24FMA RL 0, SRL 0; any 1$311,196.2119; 1
Tuftonboro townTownApproved, expires 2027-07-18FMA RL 0, SRL 0; any 0$220,044.6210; 2
Wakefield townTownApproved, expires 2029-07-17FMA RL 0, SRL 0; any 0$229,098.599; 0Includes $15,942.73 for declarations not counted as hazard incidents (DR-4516-NH).
Wolfeboro townTownApproved, expires 2030-08-18FMA RL 0, SRL 0; any 1$1,564,382.957; 0Includes $20,199.11 for declarations not counted as hazard incidents (DR-4516-NH).

Member 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 member row, while the county table counts only its part in this county.

School districts and special districts get a plan clock row only.

Sources

FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-26T121003Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)

FEMA, OpenFEMA NfipMultipleLossProperties v1, version 2026-08-04T164045Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/NfipMultipleLossProperties (API)

FEMA, OpenFEMA PublicAssistanceFundedProjectsSummaries v1, version 2026-09-26T151157Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/PublicAssistanceFundedProjectsSummaries (API)

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

Supports B2-a and B2-b: assets and impacts

Local data required

County-level starter. The plan must describe impacts for each participant 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 participant 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

HazardBuilding exposuremodeled dollarsAgriculture exposuremodeled dollarsPopulation exposedpeopleEAL buildingsmodeled dollars per yearEAL agriculturemodeled dollars per yearEAL population equivalencestatistical value of life and injury, $13.7M per life, 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
Avalanche$875,4051under $1$3,635under 0.0001%
Coastal FloodingNot Applicable in NRI for this county
Cold Wave$17,180,486,303$7,137,50050,016$122$1,896$798,038under 0.0001%
Drought$0$0agriculture exposure is 0 in NRI
Earthquake$29,064,684,86550,107$516,079$43,8370.00178%
Hail$17,180,486,303$7,137,50050,016$4,151$934$33,945under 0.0001%
Heat Wave$17,180,486,303$7,137,50050,016under $1$1,952$176,643under 0.0001%
Hurricane$17,180,486,303$7,137,50050,016$4,676,841$25,085$68,7000.0272%
Ice Storm$17,180,486,30350,016$673,574$37,9480.00392%
Inland Flooding$17,067,381,067$4,804,9922,243$22,442,475$64,639$55,222n/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. EAL as % of exposure: n/a.
Landslide$837,196,4302,284$12,135$4,4420.00145%
Lightning$17,180,486,30350,016$39,967$426,5590.000233%
Strong Wind$17,180,486,303$7,137,50050,016$49,017$52$170,2410.000285%
Tornado$17,180,486,303$7,137,50050,016$61,558$34$165,2140.000358%
TsunamiNot Applicable in NRI for this county
Volcanic ActivityNot Applicable in NRI for this county
Wildfire$12,211,568,486$4,309,50637,900$17,518$1$1,3060.000143%
Winter Weather$17,180,486,303$7,137,50050,016$117,306$10$305,9650.000683%

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

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

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 must not be added up; the unit total counts each declaration once.

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

Sources

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, 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)

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

NOAA National Weather Service, NWS county-public forecast zones correlation file, version bp03mr20 to bp16ap26 (11 files; newest bp16ap26), pulled 2026-09-28, https://www.weather.gov/gis/ZoneCounty

FEMA, OpenFEMA DisasterDeclarationsSummaries v2, version 2026-09-27T010817Z, pulled 2026-09-28, https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries (API)

FEMA, OpenFEMA PublicAssistanceFundedProjectsSummaries v1, version 2026-09-26T151157Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/PublicAssistanceFundedProjectsSummaries (API)

FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-26T121003Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)

Supports B2-a: context

County context

MeasureValue
Population50,016
Building value (total, not at risk)$17,180,486,303
Agriculture value (total, not at risk)$7,137,500
NRI risk rating (all hazards)Relatively Low
Expected annual loss, buildings and agriculture, all hazards$28,705,347
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)$2,291,697
Social vulnerability ratingRelatively Low
Community resilience ratingRelatively High
NRI versionDecember 2025

FEMA's all-hazard expected annual loss total adds buildings, agriculture and population equivalence; the two parts are shown separately so the property figure is not read as including the statistical value of life.

Source

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, 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)

Supports B2-c: repetitive loss

Repetitive loss in this county, both definitions

DefinitionPropertiesSevere repetitive lossProperties
Repetitive loss, FMA definition (44 CFR 77.2)2Severe repetitive loss, FMA definition (44 CFR 77.2)2
Repetitive loss, NFIP insurance definition21Severe repetitive loss, NFIP insurance definition1

Your state NFIP coordinator's list may use the NFIP insurance definition, so its counts can be higher.

Repeat-flood properties: county total and NFIP communities

ScopeRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
County total222112304
BARTLETT, TOWN OF0060603
CONWAY, TOWN OF2130501
FREEDOM, TOWN OF0010100
OSSIPEE, TOWN OF0191900
TAMWORTH, TOWN OF0010100
WOLFEBORO, TOWN OF0010100

Repeat-flood properties by plan member (NFIP community)

MemberNFIP community IDRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredpropertiesNote
Albany town3301740000000
Bartlett town3300100060603
Brookfield town3301790000000
Conway town3300112130501
Eaton town3302040000000
Effingham town3300120000000
Freedom town3300130010100
Hart's Location town3302130000000
Jackson town3300140000000
Madison town3302200000000
Moultonborough town3300150000000
Ossipee town3300160191900
Sandwich town3300170000000
Tamworth town3300180010100
Tuftonboro town3302340000000
Wakefield town3300190000000
Wolfeboro town3302390010100

Per-member types: XLSX sheet 'B2-c Members'.

Member 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 member row, while the county table counts only its part in this county.

County repeat-flood properties by occupancy group

Occupancy groupRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
single-family residential221511704
2 to 4 unit residential0000000
other residential0000000
non-residential0060600
not reported0000000

Institutional properties cannot be separated in this data: FEMA's occupancy groups have no institutional class, so they fall 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; OpenFEMA's fmaRl field description omits the Increased Cost of Compliance clause of 44 CFR 77.2(i). NFIP repetitive loss (FEMA insurance definition, nfipRl) is 2 or more claims over $1,000 in 10 years and can drop to false when a property is mitigated. Also shown: NFIP severe repetitive loss, any category, mitigated and currently insured.

Your state NFIP coordinator's list may use the NFIP insurance definition, so its counts can be higher.

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

Counts may differ from your state NFIP coordinator's list, which is the source the Handbook names.

In this county 1 property is FMA repetitive loss but not NFIP repetitive loss, and 20 properties are NFIP repetitive loss but not FMA repetitive loss.

Exact counts; no count suppression.

Sources

Every table above lists its own sources. The full list, for the plan's bibliography (FEMA review item A4-a):

  1. FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-26T121003Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)
  2. FEMA, OpenFEMA DisasterDeclarationsSummaries v2, version 2026-09-27T010817Z, pulled 2026-09-28, https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries (API)
  3. FEMA, OpenFEMA PublicAssistanceFundedProjectsSummaries v1, version 2026-09-26T151157Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/PublicAssistanceFundedProjectsSummaries (API)
  4. FEMA, OpenFEMA NfipMultipleLossProperties v1, version 2026-08-04T164045Z, pulled 2026-09-28, 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 2026-09-28, 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 2026-09-28, 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 2026-09-28, 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 2026-09-28, 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

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).

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.

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). Carroll County, NH: risk-assessment baseline packet, release 2026-10 (data as of 2026-09-28; County area 33003). Preview: automated baseline. 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: to be added

Hazard Plain release 2026-10. As of 2026-09-28; Storm Events data through 2026-06-30. File hazard-plain_2026-10_NH_33003. Preview: automated baseline.