Douglas County, NE: risk-assessment baseline packet, release 2026-10

Summary

Plan status as of 2026-09-30: Expired on 2026-06-14. Plan: Papio-Missouri River NRD (FEMA plan 107490), approved 2021-06-14.

Since the plan was approved on 2021-06-14: 7 new hazard declarations (7 incidents) and 289 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): Inland Flooding ($88,124,492 a year), Tornado ($63,943,253) and Hail ($24,432,164).

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.

Terms used

EAL:: expected annual loss: FEMA's modeled average yearly loss from a hazard.
NRI:: FEMA's National Risk Index (version 1.20, December 2025).
NFIP:: National Flood Insurance Program.
RL, SRL:: repetitive loss and severe repetitive loss: flood-insured properties with repeated claims (definitions in B2-c).
FMA, HMGP:: Flood Mitigation Assistance and Hazard Mitigation Grant Program, FEMA mitigation grants.
PA:: FEMA Public Assistance: disaster aid to governments and some nonprofits.
Zone-level:: NOAA logged the event for a National Weather Service forecast zone, which may include parts of neighboring counties.
County-coded:: NOAA logged the event to this county.
FIPS:: the federal code for a place; 31055 is this area.
D0 to D4:: U.S. Drought Monitor categories, from abnormally dry (D0) to exceptional drought (D4).
F/EF, EFU:: Fujita and Enhanced Fujita tornado ratings; EFU is an unrated tornado.
kt, CONUS:: knots (1 kt is about 1.15 mph); the contiguous United States.
CFR:: Code of Federal Regulations.
A4-a, E1-a:: other items of FEMA's Local Mitigation Plan Review Tool (sources, and changes since the last plan).
Dollars:: nominal (as reported, labeled with the year), not adjusted for inflation.

Plan clock

Status:: Expired on 2026-06-14
Plan:: Papio-Missouri River NRD (FEMA plan 107490)
Approved:: 2021-06-14
Days since expiry:: 108
Update underway:: none recorded in FEMA's plan tracker

Until a new plan is approved, FEMA mitigation project grants (HMGP, FMA) need a FEMA exception (44 CFR 201.6(a)(3)).

What changed since your last plan (approved 2021-06-14)

New federal declarations:: 7 new hazard declarations (7 incidents): DR-4616-NE (Severe Storms and Straight-Line Winds), DR-4778-NE (Severe Storms, Straight-Line Winds, and Tornadoes), DR-4808-NE (Severe Storms, Straight-Line Winds, Tornadoes, and Flooding), DR-4822-NE (Severe Storms, Straight-Line Winds, Tornadoes, and Flooding), DR-4838-NE (Severe Storms, Straight-Line Winds, Tornadoes, and Flooding), DR-4868-NE (Severe Winter Storm and Straight-Line Winds), DR-4896-NE (Severe Storms, Straight-Line Winds, and Flooding)
Storm Events records since approval:: 289 records (data through 2026-06-30)
Repetitive loss now:: FMA RL 6, SRL 5 (44 CFR 77.2); any definition: 49
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: 14 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

Jurisdiction	Type	Status	Plan	Approved	Expires	Days to expirynegative = days since expiry	Notes
Douglas County	County	Expired on 2026-06-14	Papio-Missouri River NRD (FEMA plan 107490)	2021-06-14	2026-06-14	-108	this jurisdiction approved 2022-03-01
Bennington city	City	Expired on 2026-06-14	Papio-Missouri River NRD (FEMA plan 107490)	2021-06-14	2026-06-14	-108	this jurisdiction approved 2021-07-26
Omaha city	City	Expired on 2026-06-14	Papio-Missouri River NRD (FEMA plan 107490)	2021-06-14	2026-06-14	-108	this jurisdiction approved 2021-09-09
Ralston city	City	Expired on 2026-06-14	Papio-Missouri River NRD (FEMA plan 107490)	2021-06-14	2026-06-14	-108	this jurisdiction approved 2022-04-25
Valley city	City	Expired on 2026-06-14	Papio-Missouri River NRD (FEMA plan 107490)	2021-06-14	2026-06-14	-108	this jurisdiction approved 2021-12-08
Waterloo village	Village	Expired on 2026-06-14	Papio-Missouri River NRD (FEMA plan 107490)	2021-06-14	2026-06-14	-108	this jurisdiction approved 2022-01-12
Arlington Public Schools	School/School District	Expired on 2026-06-14	Papio-Missouri River NRD (FEMA plan 107490)	2021-06-14	2026-06-14	-108	this jurisdiction approved 2021-12-08
Douglas County West Community Schools	School/School District	Expired on 2026-06-14	Papio-Missouri River NRD (FEMA plan 107490)	2021-06-14	2026-06-14	-108	this jurisdiction approved 2022-07-05
Fort Calhoun Community Schools	School/School District	Expired on 2026-06-14	Papio-Missouri River NRD (FEMA plan 107490)	2021-06-14	2026-06-14	-108	this jurisdiction approved 2022-01-12
Gretna Public Schools	School/School District	Expired on 2026-06-14	Papio-Missouri River NRD (FEMA plan 107490)	2021-06-14	2026-06-14	-108	this jurisdiction approved 2021-12-08
Millard Public Schools	School/School District	Expired on 2026-06-14	Papio-Missouri River NRD (FEMA plan 107490)	2021-06-14	2026-06-14	-108
Omaha Public Schools	School/School District	Expired on 2026-06-14	Papio-Missouri River NRD (FEMA plan 107490)	2021-06-14	2026-06-14	-108
Ralston Public Schools	School/School District	Expired on 2026-06-14	Papio-Missouri River NRD (FEMA plan 107490)	2021-06-14	2026-06-14	-108	this jurisdiction approved 2021-07-16
Westside Community Schools	School/School District	Expired on 2026-06-14	Papio-Missouri River NRD (FEMA plan 107490)	2021-06-14	2026-06-14	-108	this jurisdiction approved 2022-01-31

Plan 107490 lists 29 other participants, named in the Excel file.

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 EAL	Hazard	NRI risk rating	EAL rating	EAL buildingsmodeled dollars per year	EAL agriculturemodeled dollars per year	Cost of expected deaths and injuriesFEMA's dollar value per year, not property damage	EAL total (see note)modeled dollars per year	Storm Events records, 1996 to 2026-06-30count	Storm Events coverage note
1	Inland Flooding	Relatively High	Relatively High	$87,570,043	$420,484	$133,965	$88,124,492	94
2	Tornado	Very High	Very High	$33,101,981	$1,153	$30,840,119	$63,943,253	11
3	Hail	Very High	Very High	$22,114,286	$181,321	$2,136,557	$24,432,164	394
4	Cold Wave	Relatively High	Very High	$30,737	$33,726	$19,543,072	$19,607,535	42
5	Strong Wind	Very High	Very High	$4,899,710	$24,978	$10,696,985	$15,621,673	323	Includes 39 High Wind and 3 Strong Wind records (NOAA non-thunderstorm wind types, outside NRI's Strong Wind definition).
6	Heat Wave	Relatively High	Relatively High	$190,204	$2	$13,966,868	$14,157,073	28
7	Ice Storm	Very High	Very High	$2,451,341	n/a	$569,402	$3,020,743	3
8	Winter Weather	Very High	Very High	$374,767	$87	$1,253,103	$1,627,956	97
9	Wildfire	Relatively Low	Relatively Moderate	$1,253,101	$42	$66,731	$1,319,874	1
10	Lightning	Relatively High	Relatively High	$208,193	n/a	$1,086,118	$1,294,311	30
11	Drought	Relatively Low	Relatively Moderate	n/a	$377,312	n/a	$377,312	12
12	Earthquake	Very Low	Relatively Low	$313,690	n/a	$59,048	$372,738		Storm Events does not record earthquakes.
13	Landslide	Relatively Low	Relatively Low	$6,381	n/a	$13,361	$19,742	0	No recorded events in Storm Events since 1996 (data through 2026-06-30).
14	Hurricane	No Rating	No Expected Annual Losses	$0	$0	$0	$0	0	No 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 landslide records (Storm Events records this hazard only in part).

Not applicable to this county per NRI, with no federal declaration and no Storm Events record since 1996: avalanche, coastal flooding, tsunami 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.

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

Hazard	Highest-rated census tractsNRI risk rating, score 0 to 100
Earthquake	tract 61.02 (Relatively Low, 42.7); tract 74.09 (Very Low, 36.1); tract 47 (Very Low, 35.9)
Hurricane	no tract has a National Risk Index rating for this hazard
Landslide	tract 73.03 (Relatively Moderate, 97.9); tract 75.09 (Relatively Low, 93.4); tract 73.17 (Relatively Low, 93.0)
Tornado	tract 74.09 (Very High, 99.6); tract 73.18 (Very High, 99.0); tract 67.01 (Very High, 98.8)
Wildfire	tract 73.03 (Relatively High, 96.7); tract 73.17 (Relatively Moderate, 95.3); tract 75.09 (Relatively Moderate, 94.6)

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 61.02 is Census Tract 61.02). 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

Hazard	Scale	Recordscount and years	Observed range	Worst recorded event	Most damaging (when different)	How it applies to jurisdictions	Note
Cold/Wind Chill, Extreme Cold/Wind Chill	wind chill	42 records, 1996 to 2026 (42 zone-level)	1 day to 5 days (median 2 days); 35 with a recorded value	5 consecutive days, 2025-02-16 to 2025-02-20, 2 direct deaths, zone-level	Cold/Wind Chill, 1996-01-31, $750,000 property; crops not reported (zone total, 1996 dollars)	Countywide (zone-level records).	Cold/Wind Chill records from May to September (a frost night, not a cold wave) are counted but not used for the longest run.
Frost/Freeze (outside NRI's Cold Wave definition)	crop damage	0
Drought	U.S. Drought Monitor scale (D0 to D4)	12 records, 1999 to 2013 (12 zone-level)	22 days to 312 days (median 167 days); 2 with a recorded value	312 days (about 10.2 months), 2012-07-21 to 2013-05-28, a run of 11 consecutive Storm Events drought records, zone-level		Countywide (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.
Earthquake	Modified Mercalli (local data)	0					Storm Events does not record earthquakes; the USGS earthquake catalog is the source.
Hail	hail size (inches)	496 records, 1956 to 2026	0.75 in to 4.5 in (median 1 in); 495 with a recorded value	4.5 in hail, 1989-04-27	Hail, 2001-04-10, $300,000,000 property; crops not reported (2001 dollars)	Event records naming jurisdictions in the plan: Omaha city (103 records), Valley city (42 records), Bennington city (29 records), Ralston city (20 records), Waterloo village (11 records).
Excessive Heat, Heat	heat index (in event narratives)	28 records, 1999 to 2026 (28 zone-level)	1 day to 13 days (median 2 days); 25 with a recorded value	13 consecutive days, 2001-07-28 to 2001-08-09, zone-level	Heat, 2005-07-22, $3,000,000 property; crops not reported (zone total, 2005 dollars)	Countywide (zone-level records).
Hurricane, Tropical Storm, Tropical Depression	Saffir-Simpson	0					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 Storm	Sperry-Piltz ice scale (local data)	3 records, 2007 to 2017 (3 zone-level)		No damage reported in 3 records.		Countywide (zone-level records).
Flash Flood, Flood, Lakeshore Flood	damage and flood days (flood depth: FIRM)	94 records, 1997 to 2025 (7 zone-level)		Flash Flood, 1999-08-07, $11,000,000 property; crops not reported (1999 dollars), 1 direct death		Event records naming jurisdictions in the plan: Waterloo village (13 records), Omaha city (9 records), Valley city (8 records), Bennington city (2 records), Ralston city (2 records). Zone-level records (7) 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 Flow	none (count and damage only)	0
Lightning	annualized frequency (the measure FEMA's Local Mitigation Planning Handbook names)	30 records, 1996 to 2010		Lightning, 2001-07-17, damage not reported, 1 direct death	Lightning, 2005-08-10, $2,000,000 property; crops not reported (2005 dollars)	Event records naming jurisdictions in the plan: Omaha city (22 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)	42 records, 1996 to 2026 (42 zone-level)	35 kt (40 mph) to 63 kt (72 mph) (median 51 kt (59 mph)); 42 with a recorded value	63 kt (72 mph) measured gust, High Wind, 2025-03-19; NWS zone NEZ052	High Wind, 1997-12-30, $40,000 property; crops not reported (zone total, 1997 dollars)	Countywide (zone-level records).
Thunderstorm Wind	wind speed (kt and mph)	391 records, 1960 to 2026	50 kt (58 mph) to 100 kt (115 mph) (median 54 kt (62 mph)); 339 with a recorded value	100 kt (115 mph) estimated gust, Thunderstorm Wind, 2008-06-27		Event records naming jurisdictions in the plan: Omaha city (56 records), Valley city (39 records), Bennington city (18 records), Ralston city (9 records), Waterloo village (5 records).
Tornado	Enhanced Fujita (Fujita before Feb 2007)	23 records, 1956 to 2025	F/EF0 to F/EF4 (median F/EF1); 22 with a recorded value	F4 tornado, 1975-05-06, 6.9 mi path length (whole path, pre-1996), 267 yd wide, $250,000,000 property; crops not recorded (1975 dollars), 3 direct deaths, 118 direct injuries		Event records naming jurisdictions in the plan: Bennington city (2 records), Waterloo village (2 records).	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).
Wildfire	acres burned (local data)	1 record, 2014 (1 zone-level)		No damage reported in 1 record.		Countywide (zone-level records).
Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleet	none in data (snowfall: local data)	97 records, 1996 to 2026 (97 zone-level)		Heavy Snow, 1997-10-25, $14,000,000 property; $100,000 crops (1997 dollars); NWS zone NEZ052		Countywide (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 and lightning.

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: 29 declarations covering 25 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

Declared	Incident began	FEMA number	Type	Title	Mapped hazard	County Public Assistancefederal share obligated, nominal dollars	Flags	Notes
2025-10-22	2025-08-08	DR-4896-NE	Major disaster	Severe Storms, Straight-Line Winds, and Flooding	Inland Flooding; Strong Wind	$1,782,778.76	new since last plan; within last 5 years
2025-05-21	2025-03-18	DR-4868-NE	Major disaster	Severe Winter Storm and Straight-Line Winds	Winter Weather	$29,435,703.91	new since last plan; within last 5 years
2024-10-21	2024-07-31	DR-4838-NE	Major disaster	Severe Storms, Straight-Line Winds, Tornadoes, and Flooding	Inland Flooding; Strong Wind; Tornado	$35,604,811.12	new since last plan; within last 5 years
2024-09-24	2024-06-19	DR-4822-NE	Major disaster	Severe Storms, Straight-Line Winds, Tornadoes, and Flooding	Inland Flooding; Strong Wind; Tornado	$7,080,027.96	new since last plan; within last 5 years
2024-08-20	2024-05-20	DR-4808-NE	Major disaster	Severe Storms, Straight-Line Winds, Tornadoes, and Flooding	Inland Flooding; Strong Wind; Tornado	$8,121,322.74	new since last plan; within last 5 years
2024-05-03	2024-04-25	DR-4778-NE	Major disaster	Severe Storms, Straight-Line Winds, and Tornadoes	Tornado	$6,218,040.34	new since last plan; within last 5 years
2021-09-06	2021-07-09	DR-4616-NE	Major disaster	Severe Storms and Straight-Line Winds	Strong Wind	$18,807,406.54	new since last plan
2020-04-04	2020-01-20	DR-4521-NE	Major disaster	COVID-19 Pandemic	Non-natural, not counted	$60,033,010.84
2020-03-13	2020-01-20	EM-3483-NE	Emergency	COVID-19	Non-natural, not counted	no Public Assistance recorded		same incident as DR-4521
2019-03-21	2019-03-09	DR-4420-NE	Major disaster	Severe Winter Storm, Straight-Line Winds, and Flooding	Inland Flooding (primary); also designated: Strong Wind, Winter Weather	$94,555,738.58
2017-08-01	2017-06-12	DR-4325-NE	Major disaster	Severe Storms, Tornadoes, and Straight-Line Winds	Strong Wind; Tornado	$11,690,573.45
2011-08-12	2011-05-24	DR-4013-NE	Major disaster	Flooding	Inland Flooding	$37,538,013.97
2011-06-18	2011-06-17	EM-3323-NE	Emergency	Flooding	Inland Flooding	no Public Assistance recorded		same incident as DR-4013
2010-07-15	2010-06-01	DR-1924-NE	Major disaster	Severe Storms and Flooding	Inland Flooding	$2,700,611.05
2010-02-25	2009-12-22	DR-1878-NE	Major disaster	Severe Winter Storms and Snowstorm	Winter Weather	$2,264,297.48
2008-07-18	2008-06-27	DR-1779-NE	Major disaster	Severe Storms, Straight-Line Winds, and Flooding	Inland Flooding; Strong Wind	$11,794,274.38
2008-06-20	2008-05-22	DR-1770-NE	Major disaster	Severe Storms, Tornadoes, and Flooding	Inland Flooding; Tornado	$4,633,377.02
2005-09-13	2005-08-29	EM-3245-NE	Emergency	Hurricane Katrina Evacuees	Hurricane: evacuation support, not a local hazard event; not counted	no Public Assistance recorded
2004-05-25	2004-05-20	DR-1517-NE	Major disaster	Severe Storms, Tornadoes and Flooding	Inland Flooding; Tornado	$811,399.62		FEMA's declaration record does not list Public Assistance, but FEMA's PA project summaries show obligations for this county
2003-07-21	2003-06-09	DR-1480-NE	Major disaster	Severe Storms and Tornadoes	Tornado	$935,886.39
1999-08-20	1999-08-06	DR-1286-NE	Major disaster	Severe Storms and Flooding	Inland Flooding	$1,316,196.22
1997-11-01	1997-10-24	DR-1190-NE	Major disaster	Severe Snow Storms, Rain, and Strong Winds	Winter Weather	no Public Assistance recorded
1993-07-19	1993-06-23	DR-998-NE	Major disaster	Severe Storms and Flooding	Inland Flooding	no Public Assistance recorded
1990-07-04	1990-06-10	DR-873-NE	Major disaster	Severe Storms, Tornadoes & Flooding	Inland Flooding; Tornado	PA not declared for this county
1984-07-03	1984-06-11	DR-716-NE	Major disaster	Tornadoes & Flooding	Tornado (primary); also designated: Inland Flooding	PA not declared for this county
1978-03-24	1978-03-24	DR-552-NE	Major disaster	Storms, Ice Jams, Snowmelt & Flooding	Inland Flooding	no Public Assistance recorded
1975-05-07	1975-05-07	DR-467-NE	Major disaster	Severe Storms & Tornadoes	Tornado	no Public Assistance recorded
1971-02-23	1971-02-23	DR-303-NE	Major disaster	Floods	Inland Flooding	no Public Assistance recorded
1967-07-18	1967-07-18	DR-228-NE	Major disaster	Severe Storms & Flooding	Inland Flooding	no Public Assistance recorded

School districts and special districts in this county: $1,634,309.19 (included in the county total above). Public Assistance matched by applicant name to the school districts and special districts FEMA lists as plan participants in this county. They have no row of their own in the jurisdiction table, so their total is listed here. These dollars are already included in the county PA column of the declarations table (the FEMA record places each applicant in this county), so this line is not added to it.

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

Declared	Incident began	FEMA number	Type	Title	Mapped hazard
1964-07-20	1964-07-20	DR-174-NE	Major disaster	Severe Storms & Flooding	Inland Flooding
1963-07-17	1963-07-17	DR-156-NE	Major disaster	Heavy Rains & Flooding	Inland Flooding
1962-09-05	1962-09-05	DR-134-NE	Major disaster	Floods	Inland Flooding
1962-05-10	1962-05-10	DR-131-NE	Major disaster	Floods	Inland Flooding
1960-04-04	1960-04-04	DR-98-NE	Major disaster	Floods	Inland Flooding

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

Public Assistance filed under this county for declarations that do not list it: 10 rows, $13,942,583.08

Sources: 2, 3

FEMA number	Declared	Title	Applicant	PA obligatedfederal share obligated, nominal dollars
DR-4641-NE	2022-02-23	Severe Storms, Straight-Line Winds, and Tornadoes	Omaha Public Power District	$6,059,014.86
DR-4225-NE	2015-06-25	Severe Storms, Tornadoes, Straight-Line Winds, and Flooding	Omaha Public Power District	$121,013.95
DR-4185-NE	2014-07-28	Severe Storms, Tornadoes, Straight-Line Winds, and Flooding	Omaha Public Power District	$2,555,533.52
DR-4179-NE	2014-06-17	Severe Storms, Tornadoes, Straight-Line Winds, and Flooding	Omaha Public Power District	$164,313.65
DR-4014-NE	2011-08-12	Severe Storms, Tornadoes, Straight Line Winds, and Flooding	Omaha Public Power District	$61,695.49
DR-1945-NE	2010-10-21	Severe Storms, Flooding, Tornado, and Straight-Lin	Omaha Public Power District	$1,648,233.43
DR-1864-NE	2009-12-16	Severe Winter Storm	Omaha Public Power District	$1,803,283.01
DR-1739-NE	2008-01-11	Severe Winter Storm	Omaha Public Power District	$1,407,332.57
DR-1706-NE	2007-06-06	Severe Storms, Flooding, and Tornadoes	Omaha Public Power District	$81,388.73
DR-1373-NE	2001-05-16	Severe Winter Storms, Flooding and Tornadoes	Omaha Public Power District	$40,773.87

FEMA's Public Assistance summaries file these applicants under this county, but FEMA's declaration rows for these disasters do not designate it (an electric cooperative or district serving several counties, for example). Not in any declaration row above and not counted.

Public Assistance not placed in any Nebraska county: 7 rows, $3,747,676.55; listed on the Nebraska state page.

Source: 3

Previous occurrences by hazard, with explicit no-event rows

Sources: 2, 6, 7

Hazard	Storm Events records, all years on file(years in the Period column)	Since plan approvalrecords	In the 12 months before plan approvalrecords	Last 5 yearsrecords	Declared incidents, all yearsseparate disasters	Declared since approvalseparate disasters	Period	Statement
Cold Wave	42	6	1	6	0	0	1996 to 2026-06-30
Drought	12	0	0	0	0	0	1996 to 2026-06-30
Earthquake	0	0	0	0	0	0		Storm Events does not record earthquakes; the USGS earthquake catalog is the source.
Hail	496	121	0	116	0	0	1955 to 2026-06-30
Heat Wave	28	9	0	9	0	0	1996 to 2026-06-30
Hurricane	0	0	0	0	0	0	1996 to 2026-06-30	No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Ice Storm	3	0	0	0	0	0	1996 to 2026-06-30
Inland Flooding	94	35	0	22	17	4	1996 to 2026-06-30
Landslide	0	0	0	0	0	0	1996 to 2026-06-30	No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Lightning	30	0	0	0	0	0	1996 to 2026-06-30
Strong Wind	433	104	10	84	8	5	1955 to 2026-06-30	Includes 39 High Wind and 3 Strong Wind records.
Tornado	23	3	0	3	11	4	1950 to 2026-06-30
Wildfire	1	0	0	0	0	0	1996 to 2026-06-30
Winter Weather	97	11	5	11	4	1	1996 to 2026-06-30

Notable Storm Events records

Sources: 1, 6, 7

Date	Event type	Magnitude or extent	Damagenominal dollars	Deaths, injuriesdirect only	Location	Flags	Why listed
2025-08-09	Thunderstorm Wind	87 kt (100 mph) estimated gust	$3,810,000 property; crops not reported (2025 dollars)	1, 1	WATERLOO to (3NO)NORTH OMAHA ARP	new since last plan; within last 5 years	deaths or injuries recorded
2025-03-19	High Wind	63 kt (72 mph) measured gust	$0 property; $0 crops (zone total, 2025 dollars)	0, 0	NWS zone NEZ052 (DOUGLAS), zone-level	new since last plan; within last 5 years	B1-c worst recorded: High Wind and Strong Wind
2025-02-16	Cold/Wind Chill		$0 property; $0 crops (zone total, 2025 dollars)	1, 0	NWS zone NEZ052 (DOUGLAS), zone-level	new since last plan; within last 5 years	B1-c worst recorded: Cold/Wind Chill, Extreme Cold/Wind Chill
2012-07-21	Drought		damage not reported	0, 0	NWS zone NEZ052 (DOUGLAS), zone-level		B1-c worst recorded: Drought
2012-06-27	Heat		$0 property; $0 crops (zone total, 2012 dollars)	1, 45	NWS zone NEZ052 (DOUGLAS), zone-level		deaths or injuries recorded
2008-06-27	Thunderstorm Wind	100 kt (115 mph) estimated gust	$53,000,000 property; $0 crops (2008 dollars)	0, 0	MERCER to SOUTH OMAHA		B1-c worst recorded: Thunderstorm Wind
2001-07-28	Heat		damage not reported	0, 0	NWS zone NEZ052 (DOUGLAS), zone-level		B1-c worst recorded: Excessive Heat, Heat
2001-07-17	Lightning		damage not reported	1, 0	OMAHA		B1-c worst recorded: Lightning
1999-08-07	Flash Flood		$11,000,000 property; crops not reported (1999 dollars)	1, 0	OMAHA		B1-c worst recorded: Flash Flood, Flood, Lakeshore Flood
1997-10-25	Heavy Snow		$14,000,000 property; $100,000 crops (zone total, 1997 dollars)	0, 0	NWS zone NEZ052 (DOUGLAS), zone-level		B1-c worst recorded: Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleet
1989-04-27	Hail	4.5 in	damage not recorded (pre-1996 record)	0, 0	location not recorded		B1-c worst recorded: Hail
1975-05-06	Tornado	F4, 6.9 mi path length (whole path, pre-1996), 267 yd wide	$250,000,000 property; crops not recorded (1975 dollars)	3, 118	location not recorded		deaths or injuries recorded

The full list is in the Excel file, sheet "B1-d Storm Events history" (1,259 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

Hazard	FEMA annualized frequency (modeled)unit per row	Unit	In plain terms	Descriptor	Descriptor basis	NRI events or days in its record period (hail, wind and tornado are area-weighted, so can be fractional)	NRI period	Location	Note
Cold Wave	4.74	event-days per year	about 4.74 days per year	Likely	Storm Events event-days in 18 of 30 years, 1996 to 2025 (60%)	90	2005-11-12 to 2024-11-12 (19 years)	countywide
Drought	14.5	event-days per year	about 14.5 days per year	Likely	Storm Events event-days in 3 of 30 years, 1996 to 2025 (10%)	525	2000 to 2025 (25.25 years; D3 and D4 only)	countywide
Earthquake	0.00058	annual probability at a location	chance a given location in the county has at least minor-damage shaking in a year: 0.058%			not shown	modeled	see B1-f	No descriptor (Storm Events does not record earthquakes).
Hail	6.87	events per year	about 6.87 per year	Highly likely	FEMA annualized frequency (modeled)	261.1 (modeled)	1986 to 2023 (38 years)	countywide
Heat Wave	8.16	event-days per year	about 8.16 days per year	Likely	Storm Events event-days in 11 of 30 years, 1996 to 2025 (36.7%)	116	2005-11-12 to 2024-11-12 (19 years)	countywide
Hurricane	0	events per year	none modeled	Unlikely	FEMA annualized frequency (modeled)	0	1851 to 2024 (Atlantic)	see B1-f	NRI counts hurricane and tropical storm tracks passing within storm-force wind range; federal declarations are in B1-d.
Ice Storm	0.909	event-days per year	about 0.909 days per year	Possible	Storm Events event-days in 2 of 30 years, 1996 to 2025 (6.67%)	62	1946-12-31 to 2014-02-12 (67 years)	countywide
Inland Flooding	1.79	event-days per year	about 1.79 days per year	Likely	Storm Events event-days in 20 of 30 years, 1996 to 2025 (66.7%)	50	1996 to 2023 (28 years)	see B1-f
Landslide	0.157	events per year (modeled)	about 1 in 6 years	Likely	FEMA annualized frequency (modeled)	not shown	modeled	see B1-f
Lightning	46	days per year with a strike	about 46 days per year	Highly likely	FEMA annualized frequency (modeled)	not shown	1995 to 2023 (29 years; CONUS)	countywide
Strong Wind	4.34	events per year	about 4.34 per year	Highly likely	FEMA annualized frequency (modeled)	166	1986 to 2023 (38 years)	countywide
Tornado	0.288	events per year	about 1 in 3 years	Likely	FEMA annualized frequency (modeled)	not shown	1950 to 2023 (EF2+); 1986 to 2023 (EF0-1)	see B1-f
Wildfire	0.000973	annual probability at a location	chance a given location in the county burns in a year: 0.0973%	Possible	Storm Events records in 1 of 30 years, 1996 to 2025 (3.33%)	not shown	modeled	see B1-f
Winter Weather	13.7	event-days per year	about 13.7 days per year	Highly likely	Storm Events event-days in 30 of 30 years, 1996 to 2025 (100%)	260	2005-11-12 to 2024-11-12 (19 years)	countywide

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

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

Descriptor scale used in this packet (defined per unit)

Sources: 5, 6

Unit	Descriptor	Definition
events per year	Highly likely	1 or more per year
events per year	Likely	about once in 1 to 10 years
events per year	Possible	about once in 10 to 100 years
events per year	Unlikely	less than once in 100 years
annual probability	Likely	10% to under 100% chance in a given year
annual probability	Possible	1% to under 10% chance in a given year
annual probability	Unlikely	under 1% chance in a given year
event-days (share of years)	Highly likely	event-days recorded in 90% or more of years
event-days (share of years)	Likely	event-days recorded in 10% to under 90% of years
event-days (share of years)	Possible	event-days recorded in some years but under 10% of years
lightning strike-days	Highly likely	cloud-to-ground strikes on 1 or more days per year

Intensity bands: historical frequency (Storm Events)

Source: 6

Hazard	Band	Years	Eventscounty-coded records	Years in period	Events per yearevents / years
Hail	1.00-1.99 in	1996 to 2025	231	30	7.7
Hail	2.00 in+	1996 to 2025	34	30	1.13
Thunderstorm Wind (counted as NRI Strong Wind)	50-64 kt	1996 to 2025	230	30	7.67
Thunderstorm Wind (counted as NRI Strong Wind)	65 kt+	1996 to 2025	40	30	1.33
Thunderstorm Wind (counted as NRI Strong Wind)	unmeasured or below 50 kt	1996 to 2025	2	30	0.0667
Tornado	EF0-1	1996 to 2025	7	30	0.233
Tornado	EF2-3	1996 to 2025	3	30	0.1
Tornado	EF4-5	1996 to 2025	1	30	0.0333
Tornado	unrated (EFU)	1996 to 2025	0	30	0

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

Hazard	Tractsrated of all	NRI risk score, 0 to 100			Tracts by rating
Hazard	Tractsrated of all	Min	Median	Max	Tracts by rating
Cold Wave	163 of 163	26.0	68.4	88.2	Relatively High 21, Relatively Moderate 134, Relatively Low 8
Drought	47 of 163	66.8	75.9	96.1	Relatively Moderate 4, Relatively Low 9, Very Low 34, No Rating 116
Earthquake	163 of 163	1.1	7.7	42.7	Relatively Low 1, Very Low 162
Hail	163 of 163	75.4	93.0	99.6	Very High 5, Relatively High 122, Relatively Moderate 36
Heat Wave	163 of 163	12.2	71.5	91.0	Relatively High 13, Relatively Moderate 128, Relatively Low 21, Very Low 1
Hurricane	0 of 163				No Rating 163
Ice Storm	163 of 163	45.1	79.4	96.0	Relatively High 6, Relatively Moderate 127, Relatively Low 30
Inland Flooding	163 of 163	1.0	31.9	98.0	Very High 1, Relatively High 11, Relatively Moderate 26, Relatively Low 82, Very Low 43
Landslide	163 of 163	23.7	63.0	97.9	Relatively Moderate 1, Relatively Low 11, Very Low 151
Lightning	163 of 163	8.5	35.7	62.7	Relatively Moderate 12, Relatively Low 144, Very Low 7
Strong Wind	163 of 163	56.6	87.9	97.4	Very High 3, Relatively High 125, Relatively Moderate 35
Tornado	163 of 163	55.8	88.0	99.6	Very High 31, Relatively High 113, Relatively Moderate 19
Wildfire	141 of 163	18.6	46.4	96.7	Relatively High 1, Relatively Moderate 13, Relatively Low 38, Very Low 89, No Rating 22
Winter Weather	163 of 163	43.5	78.6	93.5	Relatively High 79, Relatively Moderate 82, Relatively Low 2

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

Jurisdiction	Type	Plan status	Repetitive lossFMA RL and SRL (44 CFR 77.2); repeat-flood, any definition	Public Assistance to this jurisdictionFEMA records matched by applicant name; federal share obligated, nominal dollars	Event records naming this placeall years; since its plan	Notes
Douglas County	County	Expired on 2026-06-14	FMA RL 1, SRL 2; any 22	$19,146.21	0 total; 0 since its plan
Bennington city	City	Expired on 2026-06-14	FMA RL 0, SRL 0; any 0	$62,178.49	51 total; 18 since its plan
Omaha city	City	Expired on 2026-06-14	FMA RL 5, SRL 2; any 20	$11,350,302.73	190 total; 13 since its plan	Includes $2,721,494.76 for declarations not counted as hazard incidents (DR-4521-NE).
Ralston city	City	Expired on 2026-06-14	FMA RL 0, SRL 0; any 0	$373,520.28	31 total; 18 since its plan
Valley city	City	Expired on 2026-06-14	FMA RL 0, SRL 1; any 7	$2,417,452.74	89 total; 24 since its plan
Waterloo village	Village	Expired on 2026-06-14	FMA RL 0, SRL 0; any 0	$189,127.68	31 total; 6 since its plan

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

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

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

Hazard	Building exposuremodeled dollars	Agriculture exposuremodeled dollars	Population exposedpeople	EAL buildingsmodeled dollars per year	EAL agriculturemodeled dollars per year	Cost of expected deaths and injuriesFEMA's dollar value per year, not property damage	EAL as % of exposurebuildings; agriculture where noted	Storm Events damage since 2021-06-14county-coded records, property plus crops, nominal dollars	Zone-level damage since planproperty plus crops, reported for the zone	Public Assistance since plannominal dollars; see note	Note
Cold Wave	$115,144,681,808	$71,515,739	584,423	$30,737	$33,726	$19,543,072	under 0.0001%		$0
Drought	n/a	$57,496,111	n/a	n/a	$377,312	n/a	0.656% (agriculture)				NRI has no building exposure for this hazard; agriculture shown
Earthquake	$197,079,571,886	n/a	584,526	$313,690	n/a	$59,048	0.000159%
Hail	$115,145,091,292	$71,515,739	584,427	$22,114,286	$181,321	$2,136,557	0.0192%	$0
Heat Wave	$115,144,681,808	$71,515,739	584,423	$190,204	$2	$13,966,868	0.000165%		$0
Hurricane	$115,145,091,292	$71,515,739	584,427	$0	$0	$0	0%
Ice Storm	$115,059,437,274	n/a	583,830	$2,451,341	n/a	$569,402	0.00213%
Inland Flooding	$115,104,455,813	$33,156,447	10,447	$87,570,043	$420,484	$133,965	n/a (see note)	$710,000		$52,588,940.58	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	$2,575,285,866	n/a	13,485	$6,381	n/a	$13,361	0.000248%
Lightning	$115,145,091,292	n/a	584,427	$208,193	n/a	$1,086,118	0.000181%
Strong Wind	$115,145,091,292	$71,515,739	584,427	$4,899,710	$24,978	$10,696,985	0.00426%	$38,810,000	$0	$71,396,347.12
Tornado	$115,145,091,292	$71,515,739	584,427	$33,101,981	$1,153	$30,840,119	0.0287%	$0		$57,024,202.16
Wildfire	$7,262,679,335	$13,610,730	41,293	$1,253,101	$42	$66,731	0.0173%
Winter Weather	$115,144,681,808	$71,515,739	584,423	$374,767	$87	$1,253,103	0.000325%		$0	$29,435,703.91

Totals since 2021-06-14 (Storm Events through 2026-06-30): 251 county-coded records, 116 with a damage value recorded (including $0), $39,520,000; 38 zone-level records, 26 with a damage value recorded (including $0), $0 reported for the zone; Public Assistance: $107,050,091.37 on 7 counted declarations.

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

Measure	Value
Population	584,427
Building value (total, not at risk)	$115,145,091,292
Agriculture value (total, not at risk)	$71,515,739
NRI risk rating (all hazards)	Relatively High
Expected annual loss, buildings and agriculture, all hazards	$153,553,537
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)	$80,365,329
Social vulnerability rating	Relatively Low
Community resilience rating	Relatively High
NRI version	December 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

Definition	Properties	Severe repetitive loss	Properties
Repetitive loss, FMA definition (44 CFR 77.2)	6	Severe repetitive loss, FMA definition (44 CFR 77.2)	5
Repetitive loss, NFIP insurance definition	47	Severe repetitive loss, NFIP insurance definition	4

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

Scope	RL, FMAproperties	SRL, FMAproperties	RL, NFIPproperties	SRL, NFIPproperties	Any categoryproperties	Currently insuredproperties
County total	6	5	47	4	49	11
of which: Douglas County (unincorporated area)	1	2	21	2	22	3
of which: Valley city	0	1	6	0	7	3
of which: Omaha city	5	2	20	2	20	5
Statewide, no county in FEMA's file	0	0	2	0	2	0

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

Jurisdiction	NFIP community ID	RL, FMAproperties	SRL, FMAproperties	RL, NFIPproperties	SRL, NFIPproperties	Any categoryproperties	Currently insuredproperties
Douglas County	310073	1	2	21	2	22	3
Bennington city	310074	0	0	0	0	0	0
Omaha city	315274	5	2	20	2	20	5
Ralston city	310077	0	0	0	0	0	0
Valley city	310078	0	1	6	0	7	3
Waterloo village	310079	0	0	0	0	0	0

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 group	RL, FMAproperties	SRL, FMAproperties	RL, NFIPproperties	SRL, NFIPproperties	Any categoryproperties	Currently insuredproperties
single-family residential	6	3	37	2	39	10
2 to 4 unit residential	0	0	0	0	0	0
other residential	0	1	6	1	6	0
non-residential	0	1	4	1	4	1
not reported	0	0	0	0	0	0

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

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

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

In this county 0 properties are FMA repetitive loss but not NFIP repetitive loss, and 41 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):

FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-29T134039Z, pulled 2026-09-30, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)
FEMA, OpenFEMA DisasterDeclarationsSummaries v2, version 2026-09-29T162832Z, pulled 2026-09-30, https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries (API)
FEMA, OpenFEMA PublicAssistanceFundedProjectsSummaries v1, version 2026-09-29T150754Z, pulled 2026-09-30, https://www.fema.gov/api/open/v1/PublicAssistanceFundedProjectsSummaries (API)
FEMA, OpenFEMA NfipMultipleLossProperties v1, version 2026-08-04T164045Z, pulled 2026-09-30, https://www.fema.gov/api/open/v1/NfipMultipleLossProperties (API)
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)
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/
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
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). Douglas County, NE: risk-assessment baseline packet, release 2026-10 (data as of 2026-09-30; County FIPS 31055). Automated baseline. https://hazardplain.org/ne/31055/ 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