Hazard Plain Automated baseline

Mobile County, AL

Risk-assessment baseline packet

County FIPS:
01097
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 2031-06-15. Plan: Mobile County (FEMA plan 111855), approved 2026-06-16.

Since the plan was approved on 2026-06-16: no new hazard declaration and 0 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): Hurricane ($178,159,461 a year), Inland Flooding ($80,839,404) and Tornado ($10,132,225).

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 2031-06-15
Plan:
Mobile County (FEMA plan 111855)
Approved:
2026-06-16
Days to expiry:
1,719

What changed since your last plan (approved 2026-06-16)

New federal declarations:
none
Storm Events records since approval:
0 records (data through 2026-06-30)
Repetitive loss now:
FMA RL 335, SRL 420 (44 CFR 77.2); any definition: 1,776
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

Source: 1

JurisdictionTypeStatusPlanApprovedExpiresDays to expirynegative = days since expiryUpdate underwayNotes
Mobile County (unincorporated area)UnincorporatedApproved, expires 2031-06-15Mobile County (FEMA plan 111855)2026-06-162031-06-151,719this jurisdiction approved 2026-07-07
Bayou La Batre cityCityApproved, expires 2031-06-15Mobile County (FEMA plan 111855)2026-06-162031-06-151,719this jurisdiction approved 2026-09-01
Chickasaw cityCityApproved, expires 2031-06-15Mobile County (FEMA plan 111855)2026-06-162031-06-151,719this jurisdiction approved 2026-08-07
Citronelle cityCityApproved, expires 2031-06-15Mobile County (FEMA plan 111855)2026-06-162031-06-151,719this jurisdiction approved 2026-07-07
Creola cityCityApproved, expires 2031-06-15Mobile County (FEMA plan 111855)2026-06-162031-06-151,719this jurisdiction approved 2026-09-16
Dauphin Island townTownApproved, expires 2031-06-15Mobile County (FEMA plan 111855)2026-06-162031-06-151,719this jurisdiction approved 2026-07-29
Mobile cityCityApproved, expires 2031-06-15Mobile County (FEMA plan 111855)2026-06-162031-06-151,719this jurisdiction approved 2026-07-07
Mount Vernon townTownApproved, expires 2031-06-15Mobile County (FEMA plan 111855)2026-06-162031-06-151,719this jurisdiction approved 2026-07-07
Prichard cityCityPlan 111855 approved 2026-06-16, pending adoption here; not yet eligibleMobile County (FEMA plan 111855), pending adoption here2026-06-16 by FEMA; not yet adopted here2031-06-15 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Saraland cityCityApproved, expires 2031-06-15Mobile County (FEMA plan 111855)2026-06-162031-06-151,719
Satsuma cityCityApproved, expires 2031-06-15Mobile County (FEMA plan 111855)2026-06-162031-06-151,719this jurisdiction approved 2026-07-28
Semmes cityCityApproved, expires 2031-06-15Mobile County (FEMA plan 111855)2026-06-162031-06-151,719this jurisdiction approved 2026-06-22

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

Supports FEMA checklist item B1-a: hazard identification

Hazards NRI does not cover (local data needed)

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

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

Sources: 5, 6

Rank by EALHazardNRI risk ratingEAL ratingEAL buildingsmodeled dollars per yearEAL agriculturemodeled dollars per yearCost of expected deaths and injuriesFEMA's dollar value per year, not property damageEAL total (see note)modeled dollars per yearStorm Events records, 1996 to 2026-06-30countStorm Events coverage note
1HurricaneVery HighVery High$164,649,799$1,344,526$12,165,137$178,159,4618
2Inland FloodingRelatively HighRelatively High$80,003,990$1,678$833,736$80,839,404180
3TornadoRelatively HighRelatively High$2,953,534$2,669$7,176,023$10,132,22577
4Heat WaveRelatively ModerateRelatively Moderate$612$441$6,648,512$6,649,5650No recorded events in Storm Events since 1996 (data through 2026-06-30).
5Coastal FloodingRelatively HighRelatively High$5,197,346n/a$611,773$5,809,11917
6Cold WaveRelatively ModerateRelatively High$121,132$2,170$4,658,080$4,781,3820No recorded events in Storm Events since 1996 (data through 2026-06-30).
7LightningVery HighVery High$219,845n/a$2,855,321$3,075,16663
8EarthquakeRelatively LowRelatively Low$1,738,339n/a$760,965$2,499,304Storm Events does not record earthquakes.
9WildfireRelatively ModerateRelatively Moderate$1,898,794$809$357,426$2,257,0300No recorded events in Storm Events since 1996 (data through 2026-06-30).
10Strong WindRelatively ModerateRelatively Moderate$332,238$4,736$893,399$1,230,373306Includes 1 High Wind and 1 Strong Wind records (NOAA non-thunderstorm wind types, outside NRI's Strong Wind definition).
11DroughtRelatively ModerateRelatively Moderaten/a$1,193,810n/a$1,193,8100Declared 1 time; no Storm Events record of this type.
12HailRelatively ModerateRelatively Moderate$635,752$980$316,313$953,045168
13Ice StormRelatively ModerateRelatively Moderate$272,041n/a$101,584$373,6250No recorded events in Storm Events since 1996 (data through 2026-06-30).
14Winter WeatherRelatively ModerateRelatively Moderate$56,390$38$147,745$204,1734
15LandslideRelatively LowVery Low$6,744n/a$31$6,7760No recorded events in Storm Events since 1996 (data through 2026-06-30).
TsunamiInsufficient DataInsufficient Datan/an/an/an/a0No recorded events in Storm Events since 1996 (data through 2026-06-30).

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

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

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

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

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

Supports FEMA checklist item B1-b: hazard location

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

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

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

Source: 5

HazardHighest-rated census tractsNRI risk rating, score 0 to 100
Earthquaketract 2 (Relatively Low, 73.1); tract 31 (Relatively Low, 69.6); tract 27 (Relatively Low, 67.7)
Hurricanetract 12 (Very High, 99.7); tract 2 (Very High, 99.5); tract 70 (Very High, 99.4)
Landslidetract 59 (Relatively Low, 94.3); tract 58 (Relatively Low, 94.2); tract 60 (Relatively Low, 90.9)
Tornadotract 58 (Relatively High, 75.4); tract 60 (Relatively High, 74.5); tract 56.02 (Relatively Moderate, 74.1)
Tsunamino tract has a National Risk Index rating for this hazard
Wildfiretract 73 (Relatively Moderate, 96.1); tract 72.04 (Relatively Moderate, 95.4); tract 70 (Relatively Moderate, 95.0)

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 2 is Census Tract 2). FEMA's Resilience Analysis and Planning Tool maps the National Risk Index for every tract: https://www.fema.gov/emergency-managers/practitioners/resilience-analysis-and-planning-tool

Supports FEMA checklist item B1-c: hazard extent

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

Sources: 6, 7

HazardScaleRecordscount and yearsObserved rangeWorst recorded eventMost damaging (when different)How it applies to jurisdictionsNote
Coastal Flood, Storm Surge/Tidenone in data (flood depth: FIRM)17 records, 1999 to 2024 (12 zone-level)Storm Surge/Tide, 2017-10-07, $10,000,000 property; $0 crops (2017 dollars); NWS zone ALZ265Event records naming jurisdictions in the plan: Mobile city (1 record). Zone-level records (12) apply countywide.Flood depth: see the FEMA Flood Insurance Rate Map.
Cold/Wind Chill, Extreme Cold/Wind Chillwind chill0
Frost/Freeze (outside NRI's Cold Wave definition)crop damage0
DroughtU.S. Drought Monitor scale (D0 to D4)0Storm 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)242 records, 1959 to 20250.75 in to 3.5 in (median 1 in); 242 with a recorded value3.5 in hail, 1985-05-08Hail, 2014-04-29, $10,000 property; $0 crops (2014 dollars)Event records naming jurisdictions in the plan: Citronelle city (22 records), Mobile city (14 records), Saraland city (10 records), Semmes city (10 records), Mount Vernon town (5 records), Satsuma city (4 records), Bayou La Batre city (3 records), Creola city (2 records), Dauphin Island town (1 record), Prichard city (1 record).
Excessive Heat, Heatheat index (in event narratives)0
Hurricane, Tropical Storm, Tropical DepressionSaffir-Simpson8 records, 2017 to 2021 (8 zone-level)Strongest recorded: Hurricane record (NOAA event type 'Hurricane (Typhoon)'), 2020-09-15 to 2020-09-16, category 2, $75,960,000 property; $0 crops (2020 dollars); NWS zone ALZ265Countywide (zone-level records).Storm Events files every zone of a storm's episode under the storm's type; flooding from the storm is filed as Flood or Flash Flood records.
Ice StormSperry-Piltz ice scale (local data)0
Flash Flood, Flood, Lakeshore Flooddamage and flood days (flood depth: FIRM)180 records, 1996 to 2025Flash Flood, 2014-04-29, $6,500,000 property; $0 crops (2014 dollars)Event records naming jurisdictions in the plan: Mobile city (26 records), Saraland city (7 records), Bayou La Batre city (6 records), Chickasaw city (6 records), Citronelle city (5 records), Semmes city (5 records), Creola city (1 record), Satsuma city (1 record).Flood depth: see the FEMA Flood Insurance Rate Map. Storm Events damage is often $0 or blank for floods, major ones included; FEMA Public Assistance by declaration (B1-d) shows which floods cost the most.
Debris Flownone (count and damage only)0
Lightningannualized frequency (the measure FEMA's Local Mitigation Planning Handbook names)63 records, 1996 to 2019Lightning, 2019-06-16, $0 property; $0 crops (2019 dollars), 1 direct deathLightning, 2006-04-22, $800,000 property; crops not reported (2006 dollars)Event records naming jurisdictions in the plan: Mobile city (24 records), Prichard city (4 records), Saraland city (2 records), Semmes city (2 records), Bayou La Batre city (1 record), Chickasaw city (1 record), Citronelle city (1 record), Mount Vernon town (1 record).Storm Events lists lightning with damage or casualties.
High Wind and Strong Wind (outside NRI's Strong Wind definition)wind speed (kt and mph)2 records, 2023 to 2024 (2 zone-level)48 kt (55 mph) to 59 kt (68 mph) (median 53.5 kt (62 mph)); 2 with a recorded value59 kt (68 mph) measured gust, High Wind, 2024-01-09; NWS zone ALZ263Countywide (zone-level records).
Thunderstorm Windwind speed (kt and mph)473 records, 1957 to 202545 kt (52 mph) to 88 kt (101 mph) (median 52 kt (60 mph)); 337 with a recorded value88 kt (101 mph), measurement type not recorded, Thunderstorm Wind, 1996-01-26Thunderstorm Wind, 2007-07-03, $3,500,000 property; $0 crops (2007 dollars)Event records naming jurisdictions in the plan: Mobile city (41 records), Citronelle city (24 records), Semmes city (20 records), Saraland city (11 records), Mount Vernon town (6 records), Bayou La Batre city (5 records), Prichard city (4 records), Creola city (3 records), Chickasaw city (2 records), Satsuma city (2 records); and 1 more jurisdiction (see the Excel file).
TornadoEnhanced Fujita (Fujita before Feb 2007)129 records, 1950 to 2026F/EF0 to F/EF3 (median F/EF1); 128 with a recorded valueF3 tornado, 1950-04-18, 14 mi path length (whole path, pre-1996), 100 yd wide, $25,000 property; crops not recorded (1950 dollars), 15 direct injuriesTornado, 1997-11-21, $2,000,000 property; crops not reported (1997 dollars)Event records naming jurisdictions in the plan: Mobile city (4 records), Semmes city (4 records), Saraland city (3 records), Citronelle city (2 records), Chickasaw city (1 record), Mount Vernon town (1 record), Prichard city (1 record).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)4 records, 2017 to 2025 (4 zone-level)No damage reported in 4 records.Countywide (zone-level records).

Where a hazard names more than 10 jurisdictions, the table lists the 10 with the most records; every one is in the Excel file, sheet "B1-c Extent".

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: 40 declarations covering 30 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
2024-09-262024-09-22EM-3618-ALEmergencyHurricane HeleneHurricane (primary); also designated: Tornadono Public Assistance recordedwithin last 5 years
2023-01-152023-01-12DR-4684-ALMajor disasterSevere Storms, Straight-Line Winds, and TornadoesStrong Wind; TornadoPA not declared for this countywithin last 5 years
2020-12-102020-10-28DR-4573-ALMajor disasterHurricane ZetaHurricane$14,588,441.85
2020-09-202020-09-14DR-4563-ALMajor disasterHurricane SallyHurricane$20,710,688.07
2020-09-142020-09-14EM-3545-ALEmergencyHurricane SallyHurricaneno Public Assistance recordedsame incident as DR-4563
2020-03-292020-01-20DR-4503-ALMajor disasterCOVID-19 PandemicNon-natural, not counted$12,925,778.40
2020-03-132020-01-20EM-3472-ALEmergencyCOVID-19Non-natural, not countedno Public Assistance recordedsame incident as DR-4503
2018-11-052018-10-10DR-4406-ALMajor disasterHurricane MichaelHurricane$287,654.36
2018-10-122018-10-10EM-3407-ALEmergencyHurricane MichaelHurricaneno Public Assistance recordedsame incident as DR-4406
2017-11-162017-10-06DR-4349-ALMajor disasterHurricane NateHurricane$3,592,290.80
2017-10-082017-10-06EM-3394-ALEmergencyHurricane NateHurricaneno Public Assistance recordedsame incident as DR-4349
2017-09-112017-09-08EM-3389-ALEmergencyHurricane IrmaHurricane$39,567.18
2014-05-022014-04-28DR-4176-ALMajor disasterSevere Storms, Tornadoes, Straight-Line Winds, and FloodingInland Flooding; Strong Wind; Tornado$1,220,793.29
2012-09-212012-08-26DR-4082-ALMajor disasterHurricane IsaacHurricane$1,336,487.71
2011-04-282011-04-15DR-1971-ALMajor disasterSevere Storms, Tornadoes, Straight-Line Winds, and FloodingInland Flooding; Strong Wind; Tornadono Public Assistance recorded
2011-04-272011-04-27EM-3319-ALEmergencySevere Storms, Tornadoes, and Straight-Line WindsStrong Wind; Tornadono Public Assistance recordedsame incident as DR-1971
2009-12-222009-11-09DR-1866-ALMajor disasterTropical Storm IdaHurricane$888,352.78
2008-09-262008-09-12DR-1797-ALMajor disasterSevere Storms and Flooding Associated with Hurricane IkeHurricane; Inland Flooding$1,407,773.50
2008-09-102008-08-29DR-1789-ALMajor disasterHurricane GustavHurricane$2,437,465.47
2008-08-302008-08-29EM-3292-ALEmergencyHurricane GustavHurricaneno Public Assistance recordedsame incident as DR-1789
2005-09-102005-08-29EM-3237-ALEmergencyHurricane Katrina EvacuationHurricane: evacuation support, not a local hazard event; not countedno Public Assistance recordedsame incident as DR-1605
2005-08-292005-08-29DR-1605-ALMajor disasterHurricane KatrinaHurricane$22,375,898.41
2005-08-282005-08-28EM-3214-ALEmergencyHurricane KatrinaHurricaneno Public Assistance recordedsame incident as DR-1605
2005-07-102005-07-10DR-1593-ALMajor disasterHurricane DennisHurricane$1,658,566.36
2004-09-152004-09-13DR-1549-ALMajor disasterHurricane IvanHurricane$10,140,816.97
2003-05-122003-05-05DR-1466-ALMajor disasterSevere Storms, Tornadoes, and FloodingInland Flooding; TornadoPA not declared for this county
2002-10-092002-09-23DR-1438-ALMajor disasterTropical Storm IsidoreHurricane$956,419.51
1998-09-301998-09-25DR-1250-ALMajor disasterHurricane Georges - 18 Sep 98Hurricaneno Public Assistance recorded
1998-09-281998-09-28EM-3133-ALEmergencyHurricane GeorgesHurricaneno Public Assistance recordedsame incident as DR-1250
1997-07-251997-07-17DR-1185-ALMajor disasterSevere Storms, Flooding,High Winds, Assoc with Hurr DannyHurricane; Inland Flooding; Strong Windno Public Assistance recorded
1995-10-041995-10-04DR-1070-ALMajor disasterHurricane OpalHurricaneno Public Assistance recorded
1993-03-151993-03-13EM-3096-ALEmergencySevere Snowfall, Winter StormWinter Weatherno Public Assistance recorded
1990-03-211990-03-15DR-861-ALMajor disasterSevere Storms, Tornadoes & FloodingInland Flooding; Tornadono Public Assistance recorded
1985-09-071985-08-29DR-742-ALMajor disasterHurricane ElenaHurricaneno Public Assistance recorded
1981-05-141981-05-14DR-639-ALMajor disasterSevere Storms & FloodingInland Floodingno Public Assistance recorded
1980-04-201980-04-20DR-619-ALMajor disasterSevere Storms, Tornadoes & FloodingInland Flooding; Tornadono Public Assistance recorded
1979-09-131979-09-13DR-598-ALMajor disasterHurricane FredericHurricaneno Public Assistance recorded
1977-07-201977-07-20EM-3045-ALEmergencyDroughtDroughtno Public Assistance recorded
1973-03-271973-03-27DR-369-ALMajor disasterTornadoes & FloodingTornado (primary); also designated: Inland Floodingno Public Assistance recorded
1969-11-071969-11-07DR-280-ALMajor disasterHurricane CamilleHurricane (primary); also designated: Inland Floodingno Public Assistance recorded

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

Statewide declarations

Source: 2

DeclaredIncident beganFEMA numberTypeTitleMapped hazard
1961-02-271961-02-27DR-109-ALMajor disasterFloodsInland Flooding

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

Previous occurrences by hazard, with explicit no-event rows

Sources: 2, 6, 7

HazardStorm Events records, all years on file(years in the Period column)Since plan approvalrecordsIn the 12 months before plan approvalrecordsLast 5 yearsrecordsDeclared incidents, all yearsseparate disastersDeclared since approvalseparate disastersPeriodStatement
Coastal Flooding17003001996 to 2026-06-30
Cold Wave0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Drought0000101996 to 2026-06-30No Storm Events records of this type; 1 federal declared incident (see declarations table)
Earthquake000000Storm Events does not record earthquakes; the USGS earthquake catalog is the source.
Hail2420116001955 to 2026-06-30
Heat Wave0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Hurricane80002001996 to 2026-06-30
Ice Storm0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Inland Flooding18000351001996 to 2026-06-30
Landslide0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Lightning63000001996 to 2026-06-30
Strong Wind4750138401955 to 2026-06-30Includes 1 High Wind and 1 Strong Wind records.
Tornado1290630801950 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 Weather4002101996 to 2026-06-30

Notable Storm Events records

Sources: 1, 6, 7

DateEvent typeMagnitude or extentDamagenominal dollarsDeaths, injuriesdirect onlyLocationFlagsWhy listed
2024-01-09High Wind59 kt (68 mph) measured gustproperty not reported; $0 crops (zone total, 2024 dollars)0, 0NWS zone ALZ263 (MOBILE CENTRAL), zone-levelwithin last 5 yearsB1-c worst recorded: High Wind and Strong Wind
2020-09-15Hurricane (NOAA event type 'Hurricane (Typhoon)')category 2$75,960,000 property; $0 crops (zone total, 2020 dollars)0, 0NWS zone ALZ265 (MOBILE COASTAL), zone-levelB1-c worst recorded: Hurricane, Tropical Storm, Tropical Depression
2019-06-16Lightning$0 property; $0 crops (2019 dollars)1, 0PRICHARDdeaths or injuries recorded
2017-10-07Storm Surge/Tide$10,000,000 property; $0 crops (zone total, 2017 dollars)0, 0NWS zone ALZ265 (MOBILE COASTAL), zone-levelB1-c worst recorded: Coastal Flood, Storm Surge/Tide
2014-04-29Flash Flood$6,500,000 property; $0 crops (2014 dollars)0, 0SARALAND to MON LOUISB1-c worst recorded: Flash Flood, Flood, Lakeshore Flood
2006-04-22Lightning$800,000 property; crops not reported (2006 dollars)0, 0SEMMESB1-c most damaging: Lightning
1998-03-07Lightningdamage not reported1, 0MOBILEdeaths or injuries recorded
1997-11-21TornadoF3, 1 mi within this county, 300 yd wide$2,000,000 property; crops not reported (1997 dollars)0, 0SARALANDB1-c most damaging: Tornado
1996-01-26TornadoF1, 2 mi within this county, 500 yd wide$100,000 property; crops not reported (1996 dollars)1, 3GULF CRESTdeaths or injuries recorded
1996-01-26Thunderstorm Wind88 kt (101 mph), measurement type not recorded$5,000 property; crops not reported (1996 dollars)0, 0CREOLAB1-c worst recorded: Thunderstorm Wind
1985-05-08Hail3.5 indamage not recorded (pre-1996 record)0, 0location not recordedB1-c worst recorded: Hail
1950-04-18TornadoF3, 14 mi path length (whole path, pre-1996), 100 yd wide$25,000 property; crops not recorded (1950 dollars)0, 15location not recordedB1-c worst recorded: Tornado

The full list is in the Excel file, sheet "B1-d Storm Events history" (1,118 rows).

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

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

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

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

Probability: FEMA annualized frequency and descriptor per hazard

Sources: 5, 6

HazardFEMA annualized frequency (modeled)unit per rowUnitIn plain termsDescriptorDescriptor basisNRI events or days in its record period (hail, wind and tornado are area-weighted, so can be fractional)NRI periodLocationNote
Coastal Flooding4.77events per year at a location (modeled)about 4.8 per year at a given location in the countyHighly likelyFEMA annualized frequency (modeled)not shownmodeledsee B1-fDescriptor from NRI: the rate at a location is 1 or more a year, so the county rate is at least that.
Cold Wave0.849event-days per yearabout 0.849 days per yearStorm Events event-days in 0 of 30 years, 1996 to 2025 (0%)12.42005-11-12 to 2024-11-12 (19 years)countywideNo Storm Events cold wave record, 1996 to 2025.
Drought16.7event-days per yearabout 16.7 days per yearStorm Events event-days in 0 of 30 years, 1996 to 2025 (0%)5882000 to 2025 (25.25 years; D3 and D4 only)countywideNo Storm Events drought record, 1996 to 2025
Earthquake0.00117annual probability at a locationchance a given location in the county has at least minor-damage shaking in a year: 0.117%not shownmodeledsee B1-fNo descriptor (Storm Events does not record earthquakes).
Hail1.71events per yearabout 1.71 per yearHighly likelyFEMA annualized frequency (modeled)68.2 (modeled)1986 to 2023 (38 years)countywide
Heat Wave9.98event-days per yearabout 9.98 days per yearStorm Events event-days in 0 of 30 years, 1996 to 2025 (0%)1232005-11-12 to 2024-11-12 (19 years)countywideNo Storm Events heat wave record, 1996 to 2025
Hurricane0.241events per yearabout 1 in 4 yearsLikelyFEMA annualized frequency (modeled)981851 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 Storm0.527event-days per yearabout 0.527 days per yearStorm Events event-days in 0 of 30 years, 1996 to 2025 (0%)291946-12-31 to 2014-02-12 (67 years)countywideNo Storm Events ice storm record, 1996 to 2025
Inland Flooding3.68event-days per yearabout 3.68 days per yearHighly likelyStorm Events event-days in 30 of 30 years, 1996 to 2025 (100%)1031996 to 2023 (28 years)see B1-f
Landslide0.299events per year (modeled)about 1 in 3 yearsLikelyFEMA annualized frequency (modeled)not shownmodeledsee B1-f
Lightning84.8days per year with a strikeabout 84.8 days per yearHighly likelyFEMA annualized frequency (modeled)not shown1995 to 2023 (29 years; CONUS)countywide
Strong Wind1.9events per yearabout 1.9 per yearHighly likelyFEMA annualized frequency (modeled)581986 to 2023 (38 years)countywide
Tornado1.17events per yearabout 1.17 per yearHighly likelyFEMA 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
Wildfire0.00415annual probability at a locationchance a given location in the county burns in a year: 0.415%Storm Events records in 0 of 30 years, 1996 to 2025 (0%)not shownmodeledsee B1-fNo descriptor: no Storm Events record 1996 to 2025
Winter Weather0.725event-days per yearabout 0.725 days per yearLikelyStorm Events event-days in 4 of 30 years, 1996 to 2025 (13.3%)10.62005-11-12 to 2024-11-12 (19 years)countywide

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

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 202578302.6
Hail2.00 in+1996 to 20254300.133
Thunderstorm Wind (counted as NRI Strong Wind)50-64 kt1996 to 2025284309.47
Thunderstorm Wind (counted as NRI Strong Wind)65 kt+1996 to 202519300.633
Thunderstorm Wind (counted as NRI Strong Wind)unmeasured or below 50 kt1996 to 20251300.0333
TornadoEF0-11996 to 202566302.2
TornadoEF2-31996 to 20255300.167
TornadoEF4-51996 to 20250300
Tornadounrated (EFU)1996 to 20250300

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

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

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

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

Range of census tract risk within the county

Source: 5

HazardTractsrated of allNRI risk score, 0 to 100Tracts by rating
MinMedianMax
Coastal Flooding76 of 13469.580.099.8Very High 2, Relatively High 10, Relatively Moderate 10, Relatively Low 23, Very Low 31, No Rating 58
Cold Wave134 of 13425.041.866.7Relatively Moderate 38, Relatively Low 96
Drought31 of 13466.988.897.6Relatively Moderate 11, Relatively Low 13, Very Low 7, No Rating 103
Earthquake134 of 13413.235.073.1Relatively Low 49, Very Low 85
Hail134 of 13426.249.070.4Relatively Moderate 1, Relatively Low 119, Very Low 14
Heat Wave134 of 13422.559.385.1Relatively High 1, Relatively Moderate 78, Relatively Low 55
Hurricane134 of 13484.495.699.7Very High 42, Relatively High 82, Relatively Moderate 10
Ice Storm134 of 1341.933.364.9Relatively Low 66, Very Low 68
Inland Flooding134 of 1341.544.997.5Very High 1, Relatively High 14, Relatively Moderate 45, Relatively Low 56, Very Low 18
Landslide129 of 13411.155.694.3Relatively Low 9, Very Low 120, No Rating 5
Lightning134 of 13436.572.595.0Relatively High 45, Relatively Moderate 81, Relatively Low 8
Strong Wind134 of 13415.633.764.5Relatively Moderate 6, Relatively Low 120, Very Low 8
Tornado134 of 13432.253.475.4Relatively High 2, Relatively Moderate 65, Relatively Low 67
Tsunami0 of 134Insufficient Data 134
Wildfire99 of 13418.783.896.1Relatively Moderate 34, Relatively Low 45, Very Low 20, No Rating 35
Winter Weather134 of 13422.838.563.4Relatively Moderate 18, Relatively Low 116

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

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

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

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

Each jurisdiction (starting figures from federal data)

Sources: 1, 3, 4, 6

JurisdictionTypePlan statusRepetitive lossFMA RL and SRL (44 CFR 77.2); repeat-flood, any definitionPublic Assistance to this jurisdictionFEMA records matched by applicant name; federal share obligated, nominal dollarsEvent records naming this placeall years; since its planNotes
Mobile County (unincorporated area)UnincorporatedApproved, expires 2031-06-15FMA RL 75, SRL 68; any 363$15,340,114.520 total; 0 since its plan
Bayou La Batre cityCityApproved, expires 2031-06-15FMA RL 19, SRL 19; any 81no Public Assistance recorded15 total; 0 since its plan
Chickasaw cityCityApproved, expires 2031-06-15FMA RL 5, SRL 3; any 35$2,036,971.0410 total; 0 since its plan
Citronelle cityCityApproved, expires 2031-06-15FMA RL 0, SRL 0; any 0$1,366,235.9354 total; 0 since its plan
Creola cityCityApproved, expires 2031-06-15FMA RL 0, SRL 0; any 0$69,212.276 total; 0 since its plan
Dauphin Island townTownApproved, expires 2031-06-15FMA RL 141, SRL 207; any 691$12,733,971.972 total; 0 since its plan
Mobile cityCityApproved, expires 2031-06-15FMA RL 92, SRL 111; any 525$26,162,301.77110 total; 0 since its planIncludes $699,305.46 for declarations not counted as hazard incidents (DR-4503-AL).
Mount Vernon townTownApproved, expires 2031-06-15FMA RL 0, SRL 0; any 0$446,259.8813 total; 0 since its plan
Prichard cityCityPlan 111855 approved 2026-06-16, pending adoption here; not yet eligibleFMA RL 0, SRL 1; any 15$1,905,956.5210 total; no approved plan
Saraland cityCityApproved, expires 2031-06-15FMA RL 2, SRL 9; any 45$1,585,737.9733 total; 0 since its plan
Satsuma cityCityApproved, expires 2031-06-15FMA RL 1, SRL 2; any 20$742,051.647 total; 0 since its plan
Semmes cityCityApproved, expires 2031-06-15FMA RL 0, SRL 0; any 0$129,380.5541 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 jurisdictions in this plan (for example state agencies, special districts and nonprofits), so the jurisdiction rows add up to less.

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

Local data needed

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

  • 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 2026-06-16county-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$10,665,833,189n/a39,430$5,197,346n/a$611,7730.0487%
Cold Wave$85,340,265,556$116,623,097414,514$121,132$2,170$4,658,0800.000142%
Droughtn/a$95,087,699n/an/a$1,193,810n/a1.26% (agriculture)NRI has no building exposure for this hazard; agriculture shown
Earthquake$151,480,329,530n/a414,809$1,738,339n/a$760,9650.00115%
Hail$85,340,265,556$116,623,097414,514$635,752$980$316,3130.000745%
Heat Wave$85,340,265,556$116,623,097414,514$612$441$6,648,512under 0.0001%
Hurricane$85,339,718,237$116,623,097414,509$164,649,799$1,344,526$12,165,1370.193%
Ice Storm$84,659,946,917n/a412,201$272,041n/a$101,5840.000321%
Inland Flooding$85,285,241,482$1,588,99722,256$80,003,990$1,678$833,736n/a (see note)NRI counts the full building value of any census block with some flood loss; this is not the value of buildings in the floodplain. Use local FIRM overlays for B2-a/B2-b.
Landslide$473,966,879n/a2,227$6,744n/a$310.00142%
Lightning$85,340,265,556n/a414,514$219,845n/a$2,855,3210.000258%
Strong Wind$85,340,265,556$116,623,097414,514$332,238$4,736$893,3990.000389%
Tornado$85,340,265,556$116,623,097414,514$2,953,534$2,669$7,176,0230.00346%
Tsunamin/an/an/an/an/an/aNRI publishes no building exposure for this county
Wildfire$5,275,354,118$23,394,37261,967$1,898,794$809$357,4260.036%
Winter Weather$85,340,265,556$116,623,097414,514$56,390$38$147,745under 0.0001%

Totals since 2026-06-16 (Storm Events through 2026-06-30): 0 county-coded records, 0 with a damage value recorded (including $0), $0; 0 zone-level records, 0 with a damage value recorded (including $0), $0 reported for the zone; Public Assistance: no counted declaration since the plan.

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
Population414,514
Building value (total, not at risk)$85,340,265,556
Agriculture value (total, not at risk)$116,623,097
NRI risk rating (all hazards)Relatively High
Expected annual loss, buildings and agriculture, all hazards$260,638,411
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)$37,526,047
Social vulnerability ratingRelatively Moderate
Community resilience ratingRelatively 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)335Severe repetitive loss, FMA definition (44 CFR 77.2)420
Repetitive loss, NFIP insurance definition1,587Severe repetitive loss, NFIP insurance definition259

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 total3354201,5872591,776187715
of which: Prichard city011511501
of which: Saraland city294044558
of which: Satsuma city122012003
of which: Dauphin Island town14120759712669199469
of which: Bayou La Batre city1919751381516
of which: Chickasaw city5333235014
of which: Mobile city921114878052537133
of which: Mobile County (unincorporated area)7568319323634171
of which: Unknown (community ID Unknown in FEMA data)0010100
Statewide, no county in FEMA's file0030300

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
Mobile County (unincorporated area)0150087568319323634171
Bayou La Batre city0150011919751381516
Chickasaw city0150035333235014
Citronelle city0102770000000
Creola city0104090000000
Dauphin Island town01041814120759712669199469
Mobile city015007921114878052537133
Mount Vernon town0101690000000
Prichard city010170011511501
Saraland city010171294044558
Satsuma city010172122012003
Semmes city0150160000000

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 residential3223851,4082331,589178671
2 to 4 unit residential241211531
other residential1440540015
non-residential102712720132628
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 114 properties are FMA repetitive loss but not NFIP repetitive loss, and 1,366 properties are NFIP repetitive loss but not FMA repetitive loss.

Exact counts; no count suppression.

Sources

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

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

What this packet is and what the plan adds

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

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

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

OpenFEMA disclaimer

This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).

Reuse, citation and corrections

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

Cite this: Hazard Plain (2026). Mobile County, AL: risk-assessment baseline packet, release 2026-10 (data as of 2026-09-30; County FIPS 01097). Automated baseline. https://hazardplain.org/al/01097/ 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: [email protected]