County Hazards

Storm events on record through

Polk County, Nebraska Storm events, disaster declarations and flood insurance claims on record

This page is a county record of past events and claims. It does not show the flood zone or the risk of an address. For the flood map of an address, use FEMA's address search (opens in a new tab).

NCEI has 524 storm events on record for Polk County, Nebraska, from 1950 through 30 Jun 2026.

The newest event on record is a drought event on 17 Mar 2026.

FEMA has 20 disaster declarations on record for the county from 1964 through 1 Oct 2026. The newest is DR-4868 of 21 May 2025.

OpenFEMA has 6 NFIP claims on record for the county from 1978 through 8 Sep 2026. The site shows no amount for a year with fewer than 5 claims with a payment.

The NWS collects event reports from a variety of sources, which include (but are not limited to): county, state, and federal emergency management officials, local law enforcement officials, SKYWARN spotters, NWS damage surveys, newspaper clipping services, the insurance industry, and the general public, among others.

The National Weather Service reports property and crop damage estimates using available data at the time of event reporting. These values should therefore be considered broad estimates. Damage amounts are not adjusted for inflation.

Zone (NWS Forecast Zone): A zone is a geographic area defined by the NWS for issuing forecasts, watches, and warnings. While zones often align with counties, they can also represent smaller or subdivided areas within a county to account for differences in weather conditions, such as elevation or proximity to water. Larger-scale events—such as heat, cold, drought, and winter storms—are typically recorded by zone.

The words of the agency. Source: NOAA NCEI, Storm Events Database, page "Frequently Asked Questions", copied on .

This is raw, unedited data from FEMA's National Emergency Management Information System (NEMIS) and as such is subject to a small percentage of human error.

The words of the agency. Source: FEMA, OpenFEMA Dataset "Disaster Declarations Summaries - v2", copied on . The page gives: last data refresh 2026-10-01.

It is derived from the National Flood Insurance Program system of record, staged in the program's reporting platform and redacted to protect policy holder personally identifiable information.

The words of the agency. Source: FEMA, OpenFEMA Dataset "NFIP Redacted Claims - v3", copied on . The page gives: last data refresh 2026-09-09.

Dates of the data: NCEI storm events through . OpenFEMA disaster declarations through . NFIP claims through .

Since the last update: no change is on record for Polk County. The site compares the agency data at each update. Updates of the data

The five hazards

Storm events on record for Polk County by hazard and period (NCEI, through 30 Jun 2026)
Hazard1950 to 20262000 to 20092010 to 20192020 to 2026Newest event
Hail140424016
Tornado38455
Flood197111
Wind126283040
Winter109313527
Other event types92Heat, cold, drought, wildfire, lightning, fog, tropical and other types
All storm events524122165123

A hazard name opens the page of that hazard for the county. A hazard has a page from 10 events. The year 2026 has the events through 30 Jun 2026 only.

Forecast zones with the name of the county give 199 of the 524 events. A county count has the events that NCEI gives to the county. It also has the events of a forecast zone that has the name of the county. A zone with another name counts for the state only.

Rates of Polk County beside the total of the counties of Nebraska and of the United States
MeasurePolkAll counties of NebraskaAll counties of the United States
Storm events for each 100 square miles, 1950 to 2026119.582.449.3
Storm events for each 10,000 residents, 1950 to 2026no figure322.552.5
NFIP claims for each 1,000 policies in force, 2016 to 2025no figure255.6185.3

The columns for the state and the United States total the counties. They count the events of each county in the same way as the county column. The site gives a rate for each 10,000 residents only from 10,000 residents. Residents and area: Census Bureau, 2021.

Newest storm events on record

Drought

On record for the forecast zone

High Wind60 mph (52 knots, estimated gust)

On record for the forecast zone

Thunderstorm Wind60 mph (52 knots, estimated gust)

3 miles ENE of SHELBY

Hail1.00 in, quarter size

3 miles ENE of SHELBY

Hail1.75 in, golf ball size

At SHELBY

Hail1.00 in, quarter size

At OSCEOLA

Hail1.75 in, golf ball size

2 miles ENE of SWEDEHOME. Damage estimate: $250 thousand

High Wind60 mph (52 knots, estimated gust)

On record for the forecast zone

Drought

On record for the forecast zone

Thunderstorm Wind64 mph (56 knots, estimated gust)

5 miles E of POLK

Hail1.00 in, quarter size

At OSCEOLA

Blizzard

On record for the forecast zone

High Wind59 mph (51 knots, measured gust)

On record for the forecast zone

Winter Weather

On record for the forecast zone

High Wind58 mph (50 knots, measured gust)

On record for the forecast zone

Extreme Cold/Wind Chill

On record for the forecast zone

Winter Weather

On record for the forecast zone

Winter Weather

On record for the forecast zone

Winter Weather

On record for the forecast zone

Winter Weather

On record for the forecast zone

Drought

On record for the forecast zone

TornadoEF unrated

9 miles NNW of SHELBY

Flood

6 miles NNW of POLK

Thunderstorm Wind60 mph (52 knots, estimated gust)

At OSCEOLA. Damage estimate: $5 thousand

TornadoEF0

7 miles NNW of SHELBY. Damage estimate: $1.0 million

The 25 events above are the newest in the NCEI record. A place is the text of the NCEI record: a distance and a direction from a reference place. Wind speed is in miles per hour, with the knots that NCEI gives. The site does not show a place text that names a private property or reads as a person. Download these events (CSV)

Storm events on record for Polk County by year, 1950 to 2026
DecadeYear that ends in 0Year that ends in 1Year that ends in 2Year that ends in 3Year that ends in 4Year that ends in 5Year that ends in 6Year that ends in 7Year that ends in 8Year that ends in 9All
1950s00000120025
1960s202012002312
1970s111322414120
1980s303004801019
1990s345142511131058
2000s910121011191512159122
2010s540141527107231311165
2020s1519212820182 (part of the year)123

A darker cell has a larger count. The number is in each cell.

NCEI recorded tornado events from 1950, and hail and thunderstorm wind events from 1955. It recorded all event types from 1996. A count before 1996 has fewer event types.

FEMA disaster declarations

FEMA has 20 disaster declarations on record for Polk County from 1964 through 1 Oct 2026. The newest is DR-4868: SEVERE WINTER STORM AND STRAIGHT-LINE WINDS.

Disaster declarations that name Polk County (OpenFEMA, through 1 Oct 2026)
DeclaredNumberTypeIncident typeTitle in the FEMA recordAssistance
DR-4868Major disasterWinter StormSEVERE WINTER STORM AND STRAIGHT-LINE WINDSPublic
DR-4808Major disasterSevere StormSEVERE STORMS, STRAIGHT-LINE WINDS, TORNADOES, AND FLOODINGPublic
DR-4662Major disasterSevere StormSEVERE STORMS AND STRAIGHT-LINE WINDSPublic
DR-4641Major disasterSevere StormSEVERE STORMS, STRAIGHT-LINE WINDS, AND TORNADOESPublic
DR-4521Major disasterBiologicalCOVID-19 PANDEMICIndividual, Public
EM-3483EmergencyBiologicalCOVID-19Public
DR-4420Major disasterFloodSEVERE WINTER STORM, STRAIGHT-LINE WINDS, AND FLOODINGPublic
DR-4325Major disasterSevere StormSEVERE STORMS, TORNADOES, AND STRAIGHT-LINE WINDSPublic
DR-4185Major disasterSevere StormSEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODINGPublic
DR-4014Major disasterSevere StormSEVERE STORMS, TORNADOES, STRAIGHT LINE WINDS, AND FLOODINGPublic
DR-1902Major disasterFloodSEVERE STORMS, ICE JAMS, AND FLOODINGPublic
DR-1878Major disasterSevere StormSEVERE WINTER STORMS AND SNOWSTORMPublic
DR-1770Major disasterSevere StormSEVERE STORMS, TORNADOES, AND FLOODINGPublic
DR-1674Major disasterSevere StormSEVERE WINTER STORMSPublic
EM-3245EmergencyHurricaneHURRICANE KATRINA EVACUEESPublic
DR-1480Major disasterSevere StormSEVERE STORMS AND TORNADOESPublic
DR-1190Major disasterSevere StormSEVERE SNOW STORMS, RAIN, AND STRONG WINDSPublic
DR-998Major disasterFloodSEVERE STORMS AND FLOODINGIndividual, Public
DR-500Major disasterSevere Ice StormICE STORMS & HIGH WINDSPublic
DR-228Major disasterFloodSEVERE STORMS & FLOODINGIndividual, Public

DR is a major disaster declaration. EM is an emergency declaration. FM is a fire management assistance declaration. A declaration for the whole state is on the Nebraska page. What a disaster declaration is

The dataset includes declared recovery programs and geographic areas (county not available before 1964; Fire Management records are considered partial due to historical nature of the dataset).

The words of the agency. Source: FEMA, OpenFEMA Dataset "Disaster Declarations Summaries - v2", copied on . The page gives: last data refresh 2026-10-01.

Flood insurance claims (NFIP)

OpenFEMA has 6 NFIP claims on record for Polk County from 1978 through 8 Sep 2026.

The site shows no amount for a year with fewer than 5 claims with a payment.

FEMA counts 16 residential policies in force on 3 Aug 2026. The site gives a rate for each 1,000 policies only from 100 policies, because one claim changes a smaller rate too much.

NFIP claims in Polk County by year of loss, 1978 to 2026
DecadeYear that ends in 0Year that ends in 1Year that ends in 2Year that ends in 3Year that ends in 4Year that ends in 5Year that ends in 6Year that ends in 7Year that ends in 8Year that ends in 9All
1970s101
1980s00001100002
1990s00010000001
2000s00000000000
2010s00000000011
2020s1000000 (part of the year)1

A darker cell has a larger count. The number is in each cell.

NFIP claims by year of loss with the amount paid: 6 years
NFIP claims in Polk County by year of loss, with the amount paid (OpenFEMA, through 8 Sep 2026)
Year of lossClaimsClaims with a paymentAmount paid
20201not shownnot shown
20191not shownnot shown
19931not shownnot shown
19851not shownnot shown
19841not shownnot shown
19781not shownnot shown

A year with fewer than 5 claims shows the count of claims and no amount. A year with 1 to 4 claims with a payment shows no amount either. Such an amount could point to one property. The amount is the sum of the building, contents and increased cost of compliance payments. How FEMA redacts NFIP claims

This dataset is not intended to be an official federal report, and should not be considered an official federal report.

Note, the County Code field may not reflect the individual county the property is located as projects can be associated with more than one county

The words of the agency. Source: FEMA, OpenFEMA Dataset "NFIP Redacted Claims - v3", copied on . The page gives: last data refresh 2026-09-09.

FEMA cannot verify the quality and/or timeliness of any data or any analysis derived therefrom after the data has been retrieved from FEMA.gov.

The words of the agency. Source: FEMA, OpenFEMA Terms and Conditions, copied on . The page gives: last updated 2025-01-22.

National Risk Index

Risk Index rating
Very Low
Risk Index score
25.7 of 100
Expected Annual Loss rating
Very Low
Expected Annual Loss
$12 million
Social Vulnerability rating
Very Low
Community Resilience rating
Relatively High
National Risk Index of Polk County by hazard type (FEMA, December 2025 release)
Hazard typeRisk Index ratingExpected Annual Loss
Cold waveVery Low$236,977
DroughtRelatively Moderate$1,456,124
EarthquakeVery Low$11,610
HailRelatively High$4,620,713
Heat waveVery Low$116,681
Ice stormRelatively Low$138,556
Inland floodingVery Low$2,849,590
LandslideVery Low$6
LightningRelatively Low$298,243
Strong windRelatively Moderate$1,533,118
TornadoRelatively Low$1,076,748
WildfireVery Low$33,675
Winter weatherRelatively Low$75,259

The National Risk Index dataset leverages available source data for natural hazard and community risk factors to develop a baseline relative risk measurement for each United States county and Census tract.

The rating is a qualitative categorization that describes the community in comparison to all other communities at the same level, ranging from “Very Low” to “Very High.”

The National Risk Index data are meant for planning purposes only.

The words of the agency. Source: FEMA, National Risk Index Data: Frequently Asked Questions (December 2025, v1.20), copied on .

The labels and the ratings are those of FEMA. Expected Annual Loss is a figure for a whole county. It is not a figure for a property. How to read the National Risk Index

Tropical storm and hurricane tracks

The HURDAT2 record of the National Hurricane Center goes through the 2025 season. It has no track at tropical storm strength within 100 miles of the centre point of Polk County.

ZIP Codes, cities and towns of Polk County

A city or town has no page of its own. This page is the record for the whole county, which has these places:

  • Osceola
  • Polk
  • Shelby
  • Stromsburg

Official channels

These links open the pages of the agencies. The site checked the links on .

Cite this page

County Hazards. "Polk County, Nebraska: storm events, disaster declarations and flood insurance claims on record". https://countyhazards.com/county/ne/polk/. Data: NOAA NCEI Storm Events Database through 30 Jun 2026; FEMA OpenFEMA disaster declarations through 1 Oct 2026; FEMA OpenFEMA NFIP claims through 8 Sep 2026. Page made on .

Where the data comes from

  • Storm events: NOAA NCEI Storm Events Database, yearly details files through 30 Jun 2026.
  • Disaster declarations: OpenFEMA Disaster Declarations Summaries, read on 1 Oct 2026.
  • NFIP claims: OpenFEMA NFIP Claims, as of 8 Sep 2026. Multiple-loss properties: 2 Aug 2026. Policies in force: 3 Aug 2026.
  • National Risk Index: FEMA, December 2025 release. Storm tracks: NHC HURDAT2 through the 2025 season.
  • Residents, area, places and adjacent counties: US Census Bureau, 2021 vintage.

How the counts are made · Corrections · Hazards in all states: hail, tornado, flood, wind, winter

Questions

How many tornado events are on record for Polk County?
NCEI has 38 tornado events on record for Polk County from 1950 through 30 Jun 2026. 7 events have a rating of EF2 or F2, or a higher rating.
How large is the hail on record for Polk County?
NCEI has 140 hail events on record from 1955 through 30 Jun 2026. 41 events have a hail size of 1.75 inches or more. NCEI names 1.75 inches a golf ball.
Which month has the most storm events on record for Polk County?
June has 86 of the 524 storm events on record from 1950 through 30 Jun 2026.
How many NFIP claims are there for each 1,000 policies in force in Polk County?
FEMA counts 16 residential policies in force on 3 Aug 2026. The site gives a rate for each 1,000 policies only from 100 policies, because one claim changes a smaller rate too much.