Hazard Plain Automated baseline

Grand Traverse County, MI

Risk-assessment baseline packet

County FIPS:
26055
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: Approved, expires 2027-09-27. Plan: Grand Traverse County NHMP (Update) (FEMA plan 107334), approved 2022-09-28.

Since the plan was approved on 2022-09-28: 1 new hazard declaration (1 incident) and 45 NOAA Storm Events records; details under "What changed since your last plan".

Highest expected annual loss (FEMA National Risk Index, modeled total; see B1-a): Cold Wave ($15,796,674 a year), Inland Flooding ($10,482,489) and Winter Weather ($1,607,596).

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

Status:
Approved, expires 2027-09-27
Plan:
Grand Traverse County NHMP (Update) (FEMA plan 107334)
Approved:
2022-09-28
Days to expiry:
362
Update underway:
none recorded in FEMA's plan tracker

What changed since your last plan (approved 2022-09-28)

New federal declarations:
1 new hazard declaration (1 incident): DR-4925-MI (Severe Storms, Tornadoes, and Flooding)
Storm Events records since approval:
45 records (data through 2026-06-30)
Repetitive loss now:
FMA RL 1, SRL 0 (44 CFR 77.2); any definition: 6
Repeat-flood change:
this release sets the baseline count.

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

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" on the following 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

Source: 1

JurisdictionTypeStatusPlanApprovedExpiresDays to expirynegative = days since expiryNotes
Grand Traverse CountyCountyApproved, expires 2027-09-27Grand Traverse County NHMP (Update) (FEMA plan 107334)2022-09-282027-09-27362
Fife Lake villageVillageApproved, expires 2027-09-27Grand Traverse County NHMP (Update) (FEMA plan 107334)2022-09-282027-09-27362This jurisdiction approved 2024-01-23.
Kingsley villageVillageApproved, expires 2027-09-27Grand Traverse County NHMP (Update) (FEMA plan 107334)2022-09-282027-09-27362This jurisdiction approved 2022-12-19.
Traverse City cityCityApproved, expires 2027-09-27Grand Traverse County NHMP (Update) (FEMA plan 107334)2022-09-282027-09-27362This jurisdiction approved 2022-11-14.
Acme townshipTownshipApproved, expires 2027-09-27Grand Traverse County NHMP (Update) (FEMA plan 107334)2022-09-282027-09-27362This jurisdiction approved 2022-10-11.
Blair townshipTownshipApproved, expires 2027-09-27Grand Traverse County NHMP (Update) (FEMA plan 107334)2022-09-282027-09-27362This jurisdiction approved 2022-12-07.
East Bay townshipTownshipApproved, expires 2027-09-27Grand Traverse County NHMP (Update) (FEMA plan 107334)2022-09-282027-09-27362This jurisdiction approved 2022-12-07.
Fife Lake townshipTownshipPlan 107334 approved 2022-09-28, pending adoption here; not yet eligibleGrand Traverse County NHMP (Update) (FEMA plan 107334), pending adoption here2022-09-28 by FEMA; not yet adopted here2027-09-27 once adoptedNot yet eligible: adopt the plan FEMA lists as approvable pending adoption.
Garfield charter townshipTownshipApproved, expires 2027-09-27Grand Traverse County NHMP (Update) (FEMA plan 107334)2022-09-282027-09-27362This jurisdiction approved 2022-10-13.
Grant townshipTownshipApproved, expires 2027-09-27Grand Traverse County NHMP (Update) (FEMA plan 107334)2022-09-282027-09-27362This jurisdiction approved 2023-03-07.
Green Lake townshipTownshipApproved, expires 2027-09-27Grand Traverse County NHMP (Update) (FEMA plan 107334)2022-09-282027-09-27362This jurisdiction approved 2022-12-07.
Long Lake townshipTownshipApproved, expires 2027-09-27Grand Traverse County NHMP (Update) (FEMA plan 107334)2022-09-282027-09-27362This jurisdiction approved 2022-10-13.
Mayfield townshipTownshipApproved, expires 2027-09-27Grand Traverse County NHMP (Update) (FEMA plan 107334)2022-09-282027-09-27362This jurisdiction approved 2022-12-07.
Paradise townshipTownshipApproved, expires 2027-09-27Grand Traverse County NHMP (Update) (FEMA plan 107334)2022-09-282027-09-27362This jurisdiction approved 2022-11-14.
Peninsula townshipTownshipApproved, expires 2027-09-27Grand Traverse County NHMP (Update) (FEMA plan 107334)2022-09-282027-09-27362This jurisdiction approved 2022-11-14.
Union townshipTownshipPlan 107334 approved 2022-09-28, pending adoption here; not yet eligibleGrand Traverse County NHMP (Update) (FEMA plan 107334), pending adoption here2022-09-28 by FEMA; not yet adopted here2027-09-27 once adoptedNot yet eligible: adopt the plan FEMA lists as approvable pending adoption.
Whitewater townshipTownshipApproved, expires 2027-09-27Grand Traverse County NHMP (Update) (FEMA plan 107334)2022-09-282027-09-27362This jurisdiction approved 2023-08-25.

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, 10

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
1Cold WaveRelatively HighRelatively High$53$755,648$15,040,973$15,796,6745Includes 1 Frost/Freeze record (outside NRI's Cold Wave definition; counted in this table and in B1-d, not in the B1-e descriptor).
2Inland FloodingRelatively LowRelatively Low$10,480,695$1,184$611$10,482,48920
3Winter WeatherVery HighVery High$18,295$446$1,588,855$1,607,596137
4TornadoRelatively LowRelatively Low$439,119$226$767,390$1,206,7351
5Strong WindRelatively ModerateRelatively Moderate$540,612$1,405$320,313$862,33174Includes 8 High Wind and 2 Strong Wind records (NOAA non-thunderstorm wind types, outside NRI's Strong Wind definition).
6LightningRelatively ModerateRelatively Moderate$11,345n/a$538,214$549,5597
7HailRelatively LowRelatively Low$264,145$38,044$70,320$372,50843
8Heat WaveVery LowRelatively Low$1,233under $1$202,458$203,6912
9EarthquakeVery LowVery Low$15,573n/a$4,706$20,279Storm Events does not record earthquakes.
10WildfireVery LowVery Low$15,859$6$2,749$18,6140No recorded events in Storm Events since 1996 (data through 2026-06-30).
11LandslideRelatively LowRelatively Low$1,817n/a$14,520$16,3370No recorded events in Storm Events since 1996 (data through 2026-06-30).
12Coastal FloodingVery LowVery Low$7,798n/a$585$8,3830No recorded events in Storm Events since 1996 (data through 2026-06-30).
13HurricaneVery LowVery Low$5,560$676$2$6,2381Includes 1 Flash Flood record whose NOAA event or episode narrative names a tropical cyclone (NOAA's type kept; each also counts under that type's hazard).
14Ice StormVery LowVery Low$3,823n/a$2,136$5,9594
15DroughtNo RatingNo Expected Annual Lossesn/a$0n/a$01
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 5511 (Very Low, 13.7); tract 5512 (Very Low, 11.9); tract 5503 (Very Low, 9.2)
Hurricanetract 5514 (Very Low, 29.9); tract 5503 (Very Low, 29.8); tract 5511 (Very Low, 29.5)
Landslidetract 5509 (Relatively Moderate, 96.2); tract 5501.01 (Relatively Low, 95.3); tract 5502 (Relatively Low, 94.5)
Tornadotract 5503 (Relatively Moderate, 56.8); tract 5514 (Relatively Moderate, 54.2); tract 5511 (Relatively Low, 52.7)
Tsunamino tract has a National Risk Index rating for this hazard
Wildfiretract 5503 (Relatively Low, 75.8); tract 5502 (Relatively Low, 75.7); tract 5501.02 (Relatively Low, 70.1)

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 5511 is Census Tract 5511). 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, 11

HazardScaleRecordscount and yearsObserved rangeWorst recorded eventMost damaging (when different)How it applies to jurisdictionsNote
Coastal Flood, Storm Surge/Tidenone in data (flood depth: FIRM)0Flood depth: see the FEMA Flood Insurance Rate Map.
Cold/Wind Chill, Extreme Cold/Wind Chillwind chill4 records, 2007 to 2026 (4 zone-level)1 day to 3 days (median 2 days); 4 with a recorded value3 consecutive days, 2026-01-22 to 2026-01-24, zone-levelCountywide (zone-level records).
Frost/Freeze (outside NRI's Cold Wave definition)crop damage1 record, 2012 (1 zone-level)Frost/Freeze, 2012-04-27, $15,000,000 crop damage (2012 dollars); NWS zone MIZ026Countywide (zone-level records).
DroughtU.S. Drought Monitor scale (D0 to D4)1 record, 2001 (1 zone-level)9 days; 1 with a recorded value9 days, 2001-08-01 to 2001-08-09, 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)52 records, 1958 to 20260.75 in to 2 in (median 1 in); 52 with a recorded value2 in hail, 1980-07-07Hail, 2023-08-03, $5,000 property; $0 crops (2023 dollars)Event records naming jurisdictions in the plan: Traverse City city (14 records), Kingsley village (5 records), Fife Lake township (4 records), Fife Lake village (4 records), Acme township (1 record).
Excessive Heat, Heatheat index (in event narratives)2 records, 2001 to 2018 (2 zone-level)1 day to 9 days (median 5 days); 2 with a recorded value9 consecutive days, 2001-08-01 to 2001-08-09, zone-levelCountywide (zone-level records).
Hurricane, Tropical Storm, Tropical DepressionSaffir-Simpson0Storm 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.
Wind, rain, flood or surge records whose NOAA event or episode narrative names a tropical cyclonedamage1 record, 2020Flash Flood, 2020-06-10, $90,000 property; $0 crops (2020 dollars) (NOAA type Flash Flood; narrative names Tropical Cyclone Cristobal)Event records naming jurisdictions in the plan: Traverse City city (1 record).NOAA filed these records under the type shown, and each also counts under that type's hazard; the record's event or episode narrative names the storm, checked against NOAA's HURDAT2 storm list by name and dates. Some records name the storm only as context (for example a distant storm that fed moisture), so read the narrative before attributing a record to the storm.
Ice StormSperry-Piltz ice scale (local data)4 records, 2001 to 2008 (4 zone-level)No damage reported in 4 records.Countywide (zone-level records).
Flash Flood, Flood, Lakeshore Flooddamage and flood days (flood depth: FIRM)20 records, 1999 to 2023 (2 zone-level)Flash Flood, 2012-10-06, $1,800,000 property; $0 crops (2012 dollars)Event records naming jurisdictions in the plan: Traverse City city (11 records), Mayfield township (1 record). Zone-level records (2) apply countywide.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)7 records, 2000 to 2025Lightning, 2000-09-01, damage not reported, 1 direct death, 1 direct injuryLightning, 2002-04-18, $125,000 property; crops not reported (2002 dollars)Event records naming jurisdictions in the plan: Traverse City city (2 records).Storm Events lists lightning with damage or casualties.
High Wind and Strong Wind (outside NRI's Strong Wind definition)wind speed (kt and mph)10 records, 1998 to 2025 (10 zone-level)40 kt (46 mph) to 61 kt (70 mph) (median 53 kt (61 mph)); 9 with a recorded value61 kt (70 mph) measured gust, High Wind, 2021-12-16; NWS zone MIZ026Countywide (zone-level records).
Thunderstorm Windwind speed (kt and mph)91 records, 1955 to 202540 kt (46 mph) to 70 kt (81 mph) (median 52 kt (60 mph)); 75 with a recorded value70 kt (81 mph), measurement type not recorded, Thunderstorm Wind, 1987-07-20Thunderstorm Wind, 2015-08-02, $7,800,000 property; $0 crops (2015 dollars)Event records naming jurisdictions in the plan: Traverse City city (23 records), Acme township (4 records), Kingsley village (4 records), Fife Lake township (3 records), Fife Lake village (3 records), Mayfield township (2 records).
TornadoEnhanced Fujita (Fujita before Feb 2007)5 records, 1956 to 2025F/EF2 to F/EF4 (median between F/EF2 and F/EF3); 4 with a recorded valueF4 tornado, 1956-04-03, 15.4 mi path length (whole path, pre-1996), 400 yd wide, $250,000 property (pre-1996 NOAA value, recorded in damage ranges); crops not recorded (1956 dollars)Tornado, 1969-06-26, $250,000 property (pre-1996 NOAA value, recorded in damage ranges); crops not recorded (1969 dollars); same damage also recorded on 1956-04-03, 1964-05-08No 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)137 records, 1996 to 2026 (137 zone-level)Heavy Snow, 2012-03-02, $600,000 property; $5,000,000 crops (2012 dollars); NWS zone MIZ026Countywide (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: 6 declarations covering 3 separate hazard incidents counted in this packet (declarations for the same incident count once; non-natural and evacuation-only declarations are not counted).

Federal disaster declarations for this county

Sources: 1, 2, 3

DeclaredIncident beganFEMA numberTypeTitleMapped hazardCounty Public Assistancefederal share obligated, nominal dollarsFlagsNotes
2026-06-302026-04-10DR-4925-MIMajor disasterSevere Storms, Tornadoes, and FloodingInland Flooding (primary); also designated: Tornado$174,249.70new since last plan; within last 5 years
2020-03-272020-01-20DR-4494-MIMajor disasterCOVID-19 PandemicNon-natural, not counted$18,138,904.80
2020-03-132020-01-20EM-3455-MIEmergencyCOVID-19Non-natural, not countedno Public Assistance recordedsame incident as DR-4494
2005-09-072005-08-29EM-3225-MIEmergencyHurricane Katrina EvacuationHurricane: evacuation support, not a local hazard event; not countedno Public Assistance recorded
1978-01-271978-01-27EM-3057-MIEmergencyBlizzards & SnowstormsWinter Weathernot available: FEMA's Public Assistance data start in 1998 (declarations from 1998-08-26 on)
1977-03-021977-03-02EM-3035-MIEmergencyDroughtDroughtnot available: FEMA's Public Assistance data start in 1998 (declarations from 1998-08-26 on)

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
1956-04-051956-04-05DR-53-MIMajor disasterTornadoTornado
1953-06-091953-06-09DR-6-MIMajor disasterTornadoTornado
1953-06-021953-06-02DR-4-MIMajor disasterTornadoTornado

FEMA recorded these with designated area Statewide and no county, so they are listed on every county page in the state (where FEMA also gives the declaration a row for the county, it is shown once, in the county table) 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 Flooding0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Cold Wave5202001996 to 2026-06-30Includes 1 Frost/Freeze record.
Drought1000101996 to 2026-06-30
Earthquake000000Storm Events does not record earthquakes; the USGS earthquake catalog is the source.
Hail5211112001955 to 2026-06-30
Heat Wave2000001996 to 2026-06-30
Hurricane1000001996 to 2026-06-30Includes 1 Flash Flood record whose NOAA event or episode narrative names a tropical cyclone (NOAA's type kept; each also counts under that type's hazard).
Ice Storm4000001996 to 2026-06-30
Inland Flooding20606111996 to 2026-06-30
Landslide0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Lightning7101001996 to 2026-06-30
Strong Wind10111213001955 to 2026-06-30Includes 8 High Wind and 2 Strong Wind records.
Tornado5101111950 to 2026-06-30
Tsunami0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Wildfire0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Winter Weather13713316101996 to 2026-06-30

Notable Storm Events records

Sources: 1, 6, 7

DateEvent typeMagnitude or extentDamagenominal dollarsDeaths, injuriesdirect onlyLocationFlagsWhy listed
2026-01-22Extreme Cold/Wind Chilldamage not reported0, 0NWS zone MIZ026 (GRAND TRAVERSE), zone-levelnew since last plan; within last 5 yearsB1-c worst recorded: Cold/Wind Chill, Extreme Cold/Wind Chill
2023-08-03Hail1 in$5,000 property; $0 crops (2023 dollars)0, 00.49 miles W of TRAVERSE CITYnew since last plan; within last 5 yearsB1-c most damaging: Hail
2021-12-16High Wind61 kt (70 mph) measured gust$50,000 property; $0 crops (zone total, 2021 dollars)0, 0NWS zone MIZ026 (GRAND TRAVERSE), zone-levelin the 12 months before plan approval; within last 5 yearsB1-c worst recorded: High Wind and Strong Wind
2020-06-10Flash Flood; narrative names Tropical Cyclone Cristobal$90,000 property; $0 crops (2020 dollars)0, 01.11 miles WNW of TRAVERSE CITY to 1.4 miles SW of TRAVERSE CITYB1-c worst recorded: Wind, rain, flood or surge records whose NOAA event or episode narrative names a tropical cyclone
2015-08-02Thunderstorm Wind65 kt (75 mph) estimated gust$7,800,000 property; $0 crops (2015 dollars)0, 03.98 miles NE of TRAVERSE CITYB1-c most damaging: Thunderstorm Wind
2012-10-06Flash Flood$1,800,000 property; $0 crops (2012 dollars)0, 02.61 miles ESE of GRAWN to 2.36 miles ESE of MAYFIELDB1-c worst recorded: Flash Flood, Flood, Lakeshore Flood
2012-04-27Frost/Freeze$0 property; $15,000,000 crops (zone total, 2012 dollars)0, 0NWS zone MIZ026 (GRAND TRAVERSE), zone-levelB1-c worst recorded: Frost/Freeze
2012-03-02Heavy Snow$600,000 property; $5,000,000 crops (zone total, 2012 dollars)0, 0NWS zone MIZ026 (GRAND TRAVERSE), zone-levelB1-c worst recorded: Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleet
2002-04-18Lightning$125,000 property; crops not reported (2002 dollars)0, 0OLD MISSIONB1-c most damaging: Lightning
2001-08-01Heatdamage not reported0, 0NWS zone MIZ026 (GRAND TRAVERSE), zone-levelB1-c worst recorded: Excessive Heat, Heat
2000-09-01Lightningdamage not reported1, 1TRAVERSE CITYdeaths or injuries recorded; B1-c worst recorded: Lightning
1989-10-14Thunderstorm Wind50 kt (58 mph), measurement type not recordeddamage not recorded (pre-1996 record)0, 2location not recordeddeaths or injuries recorded
1987-07-20Thunderstorm Wind70 kt (81 mph), measurement type not recordeddamage not recorded (pre-1996 record)0, 0location not recordedB1-c worst recorded: Thunderstorm Wind
1980-07-07Hail2 indamage not recorded (pre-1996 record)0, 0location not recordedB1-c worst recorded: Hail
1969-06-26TornadoF3, 6.4 mi path length (whole path, pre-1996), 600 yd wide$250,000 property (pre-1996 NOAA value, recorded in damage ranges); crops not recorded (1969 dollars)0, 0location not recordedB1-c most damaging: Tornado
1956-04-03TornadoF4, 15.4 mi path length (whole path, pre-1996), 400 yd wide$250,000 property (pre-1996 NOAA value, recorded in damage ranges); crops not recorded (1956 dollars)0, 0location not recordedB1-c worst recorded: Tornado

The full list is in the Excel file, sheet "B1-d Storm Events history" (335 rows).

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

Also counted as Hurricane: the record's event or episode narrative names the storm. Some records name the storm only as context (for example a distant storm that fed moisture), so read the narrative before attributing a record to the storm.

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 Flooding0.0135events per year at a location (modeled)about 0.014 per year at a given location in the countyPossibleFEMA annualized frequency (modeled), at a location in the countynot shownmodeledsee B1-fNo Storm Events record, 1996 to 2025.
Cold Wave0.895event-days per yearabout 0.895 days per yearPossibleStorm Events event-days in 2 of 30 years, 1996 to 2025 (6.67%)172005-11-12 to 2024-11-12 (19 years)countywide
Drought0event-days per yearnone modeledPossibleStorm Events event-days in 1 of 30 years, 1996 to 2025 (3.33%)02000 to 2025 (25.25 years; D3 and D4 only)countywideNRI models no drought event-days here (2000 to 2025, 25.25 years; D3 and D4 only); Storm Events has a record in 1 of 30 years. The descriptor comes from Storm Events, which counts D2 drought that NRI leaves out.
Earthquake0.000329annual probability at a locationchance a given location in the county has at least minor-damage shaking in a year: 0.0329%UnlikelyFEMA annualized frequency (modeled), at a location in the countynot shownmodeledsee B1-fStorm Events does not record earthquakes.
Hail0.786events per yearabout 0.79 per yearLikelyFEMA annualized frequency (modeled)31.3 (modeled)1986 to 2023 (38 years)countywide
Heat Wave0.737event-days per yearabout 0.737 days per yearPossibleStorm Events event-days in 2 of 30 years, 1996 to 2025 (6.67%)122005-11-12 to 2024-11-12 (19 years)countywide
Hurricane0.01events per yearabout 1 in 100 yearsPossibleFEMA annualized frequency (modeled)01851 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 Storm0.0742event-days per yearabout 0.0742 days per yearLikelyStorm Events event-days in 4 of 30 years, 1996 to 2025 (13.3%)41946-12-31 to 2014-02-12 (67 years)countywide
Inland Flooding0.607event-days per yearabout 0.607 days per yearLikelyStorm Events event-days in 10 of 30 years, 1996 to 2025 (33.3%)171996 to 2023 (28 years)see B1-f
Landslide0.194events per year (modeled)about 1 in 5 yearsLikelyFEMA annualized frequency (modeled)not shownmodeledsee B1-f
Lightning25.8days per year with a strikeabout 25.8 days per yearHighly likelyFEMA annualized frequency (modeled)not shown1995 to 2023 (29 years; CONUS)countywide
Strong Wind0.877events per yearabout 0.88 per yearLikelyFEMA annualized frequency (modeled)291986 to 2023 (38 years)countywide
Tornado0.0737events per yearabout 1 in 14 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
Wildfire0.0000832annual probability at a locationchance a given location in the county burns in a year: 0.00832%UnlikelyFEMA annualized frequency (modeled), at a location in the countynot shownmodeledsee B1-fNo Storm Events record, 1996 to 2025.
Winter Weather30.8event-days per yearabout 30.8 days per yearHighly likelyStorm Events event-days in 29 of 30 years, 1996 to 2025 (96.7%)5862005-11-12 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; otherwise (always for earthquake) the scale is applied to the chance at a location, and the county as a whole is at least as likely. The Methods page gives each hazard's method, from FEMA's National Risk Index Technical Documentation v1.20.

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 202525300.833
Hail2.00 in+1996 to 20250300
Thunderstorm Wind (counted as NRI Strong Wind)50-64 kt1996 to 202559301.97
Thunderstorm Wind (counted as NRI Strong Wind)65 kt+1996 to 20253300.1
Thunderstorm Wind (counted as NRI Strong Wind)unmeasured or below 50 kt1996 to 20252300.0667
TornadoEF0-11996 to 20250300
TornadoEF2-31996 to 20250300
TornadoEF4-51996 to 20250300
Tornadounrated (EFU)1996 to 20251300.0333

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

Natural hazards by jurisdiction: federal-data draft

Sources: 1, 3, 4, 5, 6, 9

Draft from federal data for the planning team to confirm and trim: FEMA National Risk Index census tract ratings (NRI v1.20, December 2025) and Census 2020 blocks. A row covers every 2020 census tract that holds part of the jurisdiction's area in this county. X: at least one of those tracts has an NRI rating (Very Low to Very High) for the hazard. o: NRI "No Rating" (no expected loss modeled; not "cannot occur"). Blank: NRI Not Applicable or Insufficient Data in those tracts (not rated; also not "cannot occur"). Census tracts are coarse, so rows that share the same tracts are identical.

JurisdictionNRI hazard (X rated, o No Rating, blank Not Applicable or Insufficient Data)Evidence from federal records
Coastal FloodingCold WaveDroughtEarthquakeHailHeat WaveHurricaneIce StormInland FloodingLandslideLightningStrong WindTornadoWildfireWinter WeatherEvent records naming the placeall yearsPublic Assistancematched by name; nominal dollarsRepetitive-loss propertiesany definition
Grand Traverse County (area in no listed town or incorporated place)XXoXXXXXXXXXXXX0$22,286.680
Acme townshipXXoXXXXXXXXXXXX50
Blair townshipoXoXXXXXXXXXXXX02
East Bay townshipXXoXXXXXXXXXXXX01
Fife Lake townshipoXoXXXXXXXXXXXX70
Fife Lake villageoXoXXXXXXXXXXXX70
Garfield charter townshipXXoXXXXXXXXXXXX0$63,370.621
Grant townshipoXoXXXXXXXXXXXX00
Green Lake townshipoXoXXXXXXXXXXXX00
Kingsley villageoXoXXXXXXXXXXXX90
Long Lake townshipoXoXXXXXXXXXXXX00
Mayfield townshipoXoXXXXXXXXXXXX30
Paradise townshipoXoXXXXXXXXXXXX00
Peninsula townshipXXoXXXXXXXXXXXX0$4,126.420
Traverse City city (part in this county)XXoXXXXXXXXXXXX50$108,018.012
Union townshipoXoXXXXXXXXXXXX00
Whitewater townshipXXoXXXXXXXXXXXX00

Not shown: hazards NRI rates Not Applicable or Insufficient Data in every census tract of the county (Avalanche, Tsunami (Insufficient Data), Volcanic Activity).

Drought: NRI counts drought losses to crops only and models drought frequency from extreme and exceptional (D3 and D4) drought weeks since 2000, so a jurisdiction with little farmland or no D3 to D4 drought on record reads o; plans often treat drought as affecting the whole planning area.

Inland Flooding is X on every row because NRI rates inland flooding in every tract these rows touch; plans often mark only the jurisdictions with recurring flood problems or mapped flood zones.

Rows marked "part in this county" cover only the jurisdiction's area in this county.

Evidence columns repeat figures from the jurisdiction table of this section (event records naming the place, all years; Public Assistance matched by applicant name; repetitive-loss properties, any definition).

Range of census tract risk within the county

Source: 5

HazardTractsrated of allNRI risk score, 0 to 100Tracts by rating
MinMedianMax
Coastal Flooding9 of 2373.377.181.8Relatively Low 5, Very Low 4, No Rating 14
Cold Wave23 of 2384.097.599.2Very High 16, Relatively High 7
Drought0 of 23No Rating 23
Earthquake23 of 230.34.213.7Very Low 23
Hail23 of 2340.361.479.4Relatively Moderate 5, Relatively Low 18
Heat Wave23 of 233.710.516.1Very Low 23
Hurricane23 of 2317.924.729.9Very Low 23
Ice Storm23 of 230.82.119.1Very Low 23
Inland Flooding23 of 233.131.966.9Relatively Moderate 4, Relatively Low 14, Very Low 5
Landslide23 of 2352.780.196.2Relatively Moderate 1, Relatively Low 9, Very Low 13
Lightning23 of 2338.871.982.3Relatively High 6, Relatively Moderate 13, Relatively Low 4
Strong Wind23 of 2335.969.384.4Relatively High 3, Relatively Moderate 15, Relatively Low 5
Tornado23 of 2328.145.456.8Relatively Moderate 2, Relatively Low 20, Very Low 1
Tsunami0 of 23Insufficient Data 23
Wildfire23 of 2330.258.875.8Relatively Low 4, Very Low 19
Winter Weather23 of 2393.599.099.6Very High 19, Relatively High 4

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, 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.

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
Grand Traverse CountyCountyApproved, expires 2027-09-27FMA RL 0, SRL 0; any 0$22,286.680 total; 0 since its plan
Fife Lake villageVillageApproved, expires 2027-09-27FMA RL 0, SRL 0; any 0no Public Assistance recorded7 total; 1 since its plan3 of the 7 event records naming this place use it as NOAA's reference point for a location 0.87 to 6.98 miles away (NOAA's distance).
Kingsley villageVillageApproved, expires 2027-09-27FMA RL 0, SRL 0; any 0no Public Assistance recorded9 total; 2 since its plan7 of the 9 event records naming this place use it as NOAA's reference point for a location 0.95 to 6 miles away (NOAA's distance).
Traverse City cityCityApproved, expires 2027-09-27FMA RL 0, SRL 0; any 2$108,018.0150 total; 9 since its planIncludes $19,425.61 for declarations not counted as hazard incidents (DR-4494-MI). 31 of the 50 event records naming this place use it as NOAA's reference point for a location 0.49 to 9.5 miles away (NOAA's distance).
Acme townshipTownshipApproved, expires 2027-09-27FMA RL 0, SRL 0; any 0no Public Assistance recorded5 total; 2 since its plan3 of the 5 event records naming this place use it as NOAA's reference point for a location 1 to 2.08 miles away (NOAA's distance).
Blair townshipTownshipApproved, expires 2027-09-27FMA RL 0, SRL 0; any 2no Public Assistance recorded0 total; 0 since its plan
East Bay townshipTownshipApproved, expires 2027-09-27FMA RL 1, SRL 0; any 1no Public Assistance recorded0 total; 0 since its plan
Fife Lake townshipTownshipPlan 107334 approved 2022-09-28, pending adoption here; not yet eligibleFMA RL 0, SRL 0; any 0no Public Assistance recorded7 total; no approved plan3 of the 7 event records naming this place use it as NOAA's reference point for a location 0.87 to 6.98 miles away (NOAA's distance).
Garfield charter townshipTownshipApproved, expires 2027-09-27FMA RL 0, SRL 0; any 1$63,370.620 total; 0 since its plan
Grant townshipTownshipApproved, expires 2027-09-27FMA RL 0, SRL 0; any 0no Public Assistance recorded0 total; 0 since its plan
Green Lake townshipTownshipApproved, expires 2027-09-27FMA RL 0, SRL 0; any 0no Public Assistance recorded0 total; 0 since its plan
Long Lake townshipTownshipApproved, expires 2027-09-27FMA RL 0, SRL 0; any 0no Public Assistance recorded0 total; 0 since its plan
Mayfield townshipTownshipApproved, expires 2027-09-27FMA RL 0, SRL 0; any 0no Public Assistance recorded3 total; 0 since its plan3 of the 3 event records naming this place use it as NOAA's reference point for a location 2.04 to 3.56 miles away (NOAA's distance).
Paradise townshipTownshipApproved, expires 2027-09-27FMA RL 0, SRL 0; any 0no Public Assistance recorded0 total; 0 since its plan
Peninsula townshipTownshipApproved, expires 2027-09-27FMA RL 0, SRL 0; any 0$4,126.420 total; 0 since its planIncludes $4,126.42 for declarations not counted as hazard incidents (DR-4494-MI).
Union townshipTownshipPlan 107334 approved 2022-09-28, pending adoption here; not yet eligibleFMA RL 0, SRL 0; any 0no Public Assistance recorded0 total; no approved plan
Whitewater townshipTownshipApproved, expires 2027-09-27FMA RL 0, SRL 0; any 0no Public Assistance recorded0 total; 0 since its plan

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 matched to a jurisdiction row here (for example county offices and boards filed under their own names, such as a sheriff's office or a conservation board, and state agencies, special districts and nonprofits), so the jurisdiction rows add up to less.

FEMA files applicants under varying names, so these rows may not include every payment to a jurisdiction. The county totals in B1-d count every applicant FEMA files under this county, whatever the name.

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.

  • 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 2022-09-28county-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$1,871,805,033n/a863$7,798n/a$5850.000417%
Cold Wave$21,634,589,900$43,914,54595,178$53$755,648$15,040,973under 0.0001%
Droughtn/a$0n/an/a$0n/aagriculture exposure is 0 in NRI
Earthquake$37,791,913,882n/a95,238$15,573n/a$4,706under 0.0001%
Hail$21,634,589,900$43,914,54595,178$264,145$38,044$70,3200.00122%$6,000
Heat Wave$21,634,589,900$43,914,54595,178$1,233under $1$202,458under 0.0001%
Hurricane$21,634,589,900$43,914,54595,178$5,560$676$2under 0.0001%
Ice Storm$21,634,589,900n/a95,178$3,823n/a$2,136under 0.0001%
Inland Flooding$21,577,926,562$142,142636$10,480,695$1,184$611n/a (see note)$0$174,249.70NRI 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$620,316,483n/a2,814$1,817n/a$14,5200.000293%
Lightning$21,634,589,900n/a95,178$11,345n/a$538,214under 0.0001%$12,000
Strong Wind$21,634,589,900$43,914,54595,178$540,612$1,405$320,3130.0025%$40,000$2,000Storm Events damage since the plan includes 1 zone-level Strong Wind record ($2,000): a NOAA non-thunderstorm wind type, outside NRI's Strong Wind definition.
Tornado$21,634,589,900$43,914,54595,178$439,119$226$767,3900.00203%$174,249.70
Tsunamin/an/an/an/an/an/aNRI publishes no building exposure for this county
Wildfire$2,742,471,435$8,851,57120,831$15,859$6$2,7490.000578%
Winter Weather$21,634,589,900$43,914,54595,178$18,295$446$1,588,855under 0.0001%$0

Totals since 2022-09-28 (Storm Events through 2026-06-30): 28 county-coded records, 22 with a damage value recorded (including $0), $58,000; 17 zone-level records, 5 with a damage value recorded (including $0), $2,000 reported for the zone; Public Assistance: $174,249.70 on 1 counted declaration.

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
Population95,178
Building value (total, not at risk)$21,634,589,900
Agriculture value (total, not at risk)$43,914,545
NRI risk rating (all hazards)Relatively Low
Expected annual loss, buildings and agriculture, all hazards$12,603,562
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)$18,553,833
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)1Severe repetitive loss, FMA definition (44 CFR 77.2)0
Repetitive loss, NFIP insurance definition5Severe repetitive loss, NFIP insurance definition0

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

Repeat-flood properties: county and state-level rows

Sources: 1, 4

ScopeRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
County total1050604
of which: Traverse City city0020202
of which: East Bay township1000101
of which: Garfield charter township0010100
of which: Blair township0020201
Statewide, no county in FEMA's file0040400

The statewide row counts properties FEMA's file gives with no county in this state; they are listed for reference and are not in this county's counts.

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

Sources: 1, 4

JurisdictionNFIP community IDRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
Grand Traverse County2618800000000
Fife Lake village2604060000000
Kingsley village2618780000000
Traverse City city2600820020202
Acme township2607490000000
Blair township2607800020201
East Bay township2607461000101
Fife Lake township2604050000000
Garfield charter township2607530010100
Grant township2618020000000
Green Lake township2618770000000
Long Lake township2607820000000
Mayfield township2618790000000
Paradise township2608300000000
Peninsula township2607470000000
Union township2608050000000
Whitewater township2607940000000

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 residential1040504
2 to 4 unit residential0000000
other residential0000000
non-residential0010100
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 1 property is FMA repetitive loss but not NFIP repetitive loss, and 5 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)
  9. U.S. Census Bureau, Census 2020 Block Assignment Files (county subdivision and place), version baf2020, pulled 2026-10-02, https://www2.census.gov/geo/docs/maps-data/data/baf2020/, https://www2.census.gov/programs-surveys/decennial/2020/data/01-Redistricting_File--PL_94-171/
  10. U.S. Census Bureau, Census county adjacency file, 2024 vintage, version 2024, pulled 2026-10-03, https://www2.census.gov/geo/docs/reference/county_adjacency/county_adjacency2024.txt
  11. NOAA National Hurricane Center, NHC HURDAT2 best-track data (Atlantic 1851 to 2025; Northeast and North Central Pacific 1949 to 2025), version 2025-092326, pulled 2026-10-03, https://www.nhc.noaa.gov/data/hurdat/hurdat2-1851-2025-092326.txt, https://www.nhc.noaa.gov/data/hurdat/hurdat2-nepac-1949-2025-092926.txt

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). Grand Traverse County, MI: risk-assessment baseline packet, release 2026-10 (data as of 2026-09-30; County FIPS 26055). Automated baseline. https://hazardplain.org/mi/26055/ 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