County Hazards

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Bayfield County, Wisconsin

Recorded hazard history: storm events since 1950, federal disaster declarations since 1953, flood insurance claims since 1978, and FEMA's risk index.

FIPS 55007 · 16,320 residents (2021) · 1,478 sq mi · dominant hazard Winter

Hail · 110Tornado · 5Flood · 40Wind · 177Winter · 184
1965-07-15: Hail1971-07-21: Hail1975-08-12: Hail1979-06-26: Hail1985-06-08: Hail1989-05-23: Hail1991-03-26: Hail1992-09-16: Hail1996-09-10: Hail1998-08-23: Hail1999-07-14: Hail1999-07-30: Hail1999-07-30: Hail1999-06-05: Hail1999-07-30: Hail2000-07-01: Hail2001-07-30: Hail2002-07-31: Hail2002-09-01: Hail2003-07-20: Hail2004-04-18: Hail2004-10-23: Hail2006-05-09: Hail2006-07-28: Hail2006-07-28: Hail2006-07-28: Hail2006-07-30: Hail2006-06-17: Hail2006-10-03: Hail2007-09-21: Hail2007-05-14: Hail2007-06-26: Hail2007-07-26: Hail2010-07-10: Hail2010-07-10: Hail2010-07-10: Hail2010-06-22: Hail2010-06-22: Hail2010-06-22: Hail2010-06-22: Hail2010-06-22: Hail2010-07-27: Hail2010-07-27: Hail2010-06-22: Hail2010-07-27: Hail2010-07-27: Hail2010-07-27: Hail2010-06-22: Hail2011-06-03: Hail2011-06-03: Hail2011-07-30: Hail2011-07-30: Hail2011-09-12: Hail2011-09-12: Hail2011-09-12: Hail2011-09-12: Hail2011-09-12: Hail2011-09-12: Hail2011-05-30: Hail2011-07-01: Hail2012-05-28: Hail2012-05-28: Hail2012-05-28: Hail2012-06-06: Hail2012-06-19: Hail2014-06-29: Hail2014-06-29: Hail2014-06-29: Hail2014-06-24: Hail2017-05-16: Hail2017-05-16: Hail2017-05-16: Hail2017-07-06: Hail2018-06-15: Hail2018-06-15: Hail2018-08-03: Hail2018-06-15: Hail2019-07-26: Hail2019-09-24: Hail2020-07-08: Hail2020-06-21: Hail2020-06-21: Hail2021-06-11: Hail2021-07-26: Hail2021-08-10: Hail2022-05-09: Hail2022-05-09: Hail2022-06-28: Hail2022-06-28: Hail2022-06-28: Hail2022-06-28: Hail2022-06-28: Hail2023-07-14: Hail2023-07-03: Hail2024-03-03: Hail2025-03-28: Hail2025-03-28: Hail2025-03-28: Hail2025-03-28: Hail2025-03-14: Hail2025-03-14: Hail2025-03-14: Hail2025-03-14: Hail2025-03-14: Hail2025-06-20: Hail2026-06-29: Hail2026-06-29: Hail1968-06-30: Tornado1983-07-03: Tornado1983-07-03: Tornado1984-04-27: Tornado1988-08-13: Tornado2005-07-24: Flood2005-10-04: Flood2016-07-12: Flood2016-07-11: Flood2016-07-11: Flood2016-07-11: Flood2016-07-11: Flood2016-07-18: Flood2016-07-11: Flood2018-06-15: Flood2018-06-17: Flood2018-06-15: Flood2018-06-17: Flood2018-06-17: Flood2018-06-17: Flood2018-06-17: Flood2018-06-17: Flood2018-06-17: Flood2018-06-17: Flood2018-06-17: Flood2018-06-17: Flood2018-06-17: Flood2018-06-17: Flood2018-06-17: Flood2018-06-17: Flood2018-06-17: Flood2018-08-27: Flood2018-10-10: Flood2020-07-08: Flood2023-04-11: Flood2023-07-27: Flood2024-06-18: Flood2024-06-18: Flood2024-06-19: Flood1969-08-28: Wind1970-07-07: Wind1973-07-13: Wind1976-07-19: Wind1977-07-30: Wind1977-07-16: Wind1980-07-10: Wind1982-07-17: Wind1982-07-17: Wind1983-07-03: Wind1983-07-03: Wind1984-06-26: Wind1986-06-21: Wind1986-06-21: Wind1986-06-21: Wind1988-06-24: Wind1990-09-13: Wind1991-06-27: Wind1991-06-27: Wind1991-05-27: Wind1992-09-16: Wind1996-08-07: Wind1997-09-18: Wind1998-05-15: Wind1998-06-01: Wind1998-06-01: Wind1998-05-15: Wind1999-07-05: Wind1999-07-05: Wind1999-07-30: Wind1999-07-05: Wind1999-07-05: Wind1999-07-25: Wind1999-07-04: Wind1999-07-05: Wind1999-06-06: Wind1999-06-06: Wind1999-06-06: Wind2000-08-14: Wind2001-08-08: Wind2001-08-08: Wind2002-06-25: Wind2005-09-13: Wind2005-08-09: Wind2006-07-29: Wind2006-07-30: Wind2006-06-17: Wind2006-06-17: Wind2007-08-27: Wind2007-06-18: Wind2007-07-26: Wind2007-07-26: Wind2007-07-26: Wind2007-07-26: Wind2008-06-13: Wind2008-07-11: Wind2008-07-11: Wind2008-07-01: Wind2008-09-02: Wind2010-07-14: Wind2010-07-27: Wind2010-07-27: Wind2010-07-27: Wind2010-06-22: Wind2010-06-22: Wind2010-07-27: Wind2011-08-08: Wind2011-07-17: Wind2011-07-01: Wind2011-07-01: Wind2011-07-17: Wind2012-07-02: Wind2012-07-02: Wind2012-05-28: Wind2013-08-26: Wind2013-08-26: Wind2014-07-22: Wind2014-07-22: Wind2014-07-22: Wind2016-06-25: Wind2016-05-23: Wind2016-05-23: Wind2016-07-21: Wind2016-07-21: Wind2016-07-21: Wind2016-07-21: Wind2016-07-21: Wind2016-07-21: Wind2016-07-11: Wind2016-07-11: Wind2016-07-21: Wind2016-07-24: Wind2016-07-21: Wind2016-07-21: Wind2016-07-21: Wind2018-08-08: Wind2018-08-27: Wind2018-08-27: Wind2018-08-27: Wind2018-08-27: Wind2019-08-07: Wind2019-08-07: Wind2019-07-15: Wind2019-07-26: Wind2020-07-08: Wind2020-07-08: Wind2020-07-08: Wind2020-07-08: Wind2020-07-05: Wind2020-07-05: Wind2020-07-05: Wind2020-07-05: Wind2020-07-05: Wind
Bayfield County within Wisconsin. Dots: HailTornadoFloodWind event locations in the kept record. Boundaries: US Census Bureau.

NCEI notes that Storm Data is compiled from a variety of sources including the National Weather Service, other federal, state and local agencies, the media and the public; that property and crop damage figures are estimates; and that some events are recorded by NWS forecast zone rather than by county. FEMA notes that NFIP claim records are redacted and aggregated to protect the privacy of policyholders. NCEI storm records through 30 Jun 2026; OpenFEMA declarations refreshed 1 Oct 2026; NFIP claims as of 8 Sep 2026.

Between 1950 and 2026, NCEI recorded 586 storm events in Bayfield County, Wisconsin, led by winter storms and snow.

That is 39.7 events per 100 square miles, below the Wisconsin figure of 85.6, and 359.1 per 10,000 residents against 78.6 statewide.

18 events fall in the 12 months to 30 Jun 2026. NCEI attributes 6 deaths and 10 injuries to events in the county, with property damage estimated at $6.5M.

FEMA has designated the county in 12 federal disaster declarations since 1953; the most recent is Severe Storms, Tornadoes, And Flooding (major disaster, 30 Jun 2026).

National Flood Insurance Program policyholders in the county filed 16 claims since 1978, of which 7 were paid, totalling $137K (about $20K per paid claim). FEMA counts 22 residential flood policies in force.

FEMA's National Risk Index rates the county's overall risk as "Very Low" and its expected annual loss as "Very Low" ($9.3M a year across 18 hazards).

18events, last 12 monthsto 30 Jun 2026
586events since 19506 deaths, 10 injuries recorded
12disaster declarationslast 30 Jun 2026
16NFIP flood claims$137K paid

Compared with Wisconsin and the United States

MeasureBayfield CountyWisconsinUS
Recorded events since 195058646,3621,977,440
Events per 100 square miles39.785.656.0
Events per 10,000 residents359.178.659.6
Events in the last 12 months181,62462,008
Deaths recorded by NCEI653026,435
Property damage (NCEI estimates)$6.5M$4.1B$575B
NFIP claims per 1,000 residents1.01.68.1
Average paid NFIP claim$20K$20K$43K
Claims per 100 policies in force, last 10 years36.423.416.1

County-recorded events plus zone-recorded events whose forecast zone is named for the county. State and US rows include events recorded only by forecast zone. Rates use 2021 Census population and land area.

Events by decade

Hail: 1Tornado: 1Wind: 1
Hail: 3Wind: 5
Hail: 2Tornado: 4Wind: 10
Hail: 12Flood: 3Wind: 27Winter: 27Cold: 2
Hail: 18Flood: 3Wind: 22Winter: 52Cold: 6Drought: 19
Hail: 46Flood: 28Wind: 46Winter: 56Heat: 2Cold: 7Drought: 6Other: 1
Hail: 28Flood: 6Wind: 66Winter: 49Cold: 8Drought: 19
01950s31960s81970s161980s711990s1202000s1922010s1762020s
Recorded events in Bayfield County by decade and hazard group. HailTornadoFloodWindWinterHeatColdDroughtOther NCEI recorded only tornadoes, hail and thunderstorm wind before 1996.

Trend: 425 events in the 20 years to 2025 against 127 in the 20 years before. Reporting practice changed in 1996 and again with automated reports in the 2000s, so decade totals measure the record as much as the weather.

Events by type

Winter184
Wind177
Hail110
Drought44
Flood40
Cold23
Tornado5
Heat2
Other1
HazardEventsDeathsShare of state's events
■ Winter18421.8%detail
■ Wind17711.2%detail
■ Hail110—1.2%detail
■ Drought44—3.1%
■ Flood4021.6%detail
■ Cold2311.3%
■ Tornado5—0.3%
■ Heat2—0.2%
■ Other1—0.1%

Hazard pages exist for hail, tornado, flood, wind and winter where the county has at least 10 recorded events. "Other" covers heavy rain, debris flow, dust, funnel clouds and similar reports.

Largest recorded events

DateEvent typeGroupMagnitudeProperty damageCrop damageDeathsInjuriesGeography
13 Nov 2010Heavy SnowWinter———2—Forecast zone
12 Jul 2016FloodFlood———11County
5 Jul 1999Thunderstorm WindWind58 mph——1—County
19 Jan 2008Extreme Cold/Wind ChillCold———1—Forecast zone
18 Jul 2016Flash FloodFlood———1—County
30 Jul 2006Thunderstorm WindWind81 mph$1.5M——2County
30 Jun 1968TornadoTornadoF2$250K——2County
3 Jul 1983TornadoTornadoF1$250K——2County
19 Jun 2024Flash FloodFlood—$50K——1County
13 Jul 1995Thunderstorm WindWind0 mph$8K——1County
11 Jul 2016Flash FloodFlood————1County
17 Jun 2018Flash FloodFlood—$2.2M———County
14 Jul 1999Flash FloodFlood—$500K———County
5 Jul 1999Flash FloodFlood—$500K———County
17 Jun 2006Thunderstorm WindWind63 mph$400K———County
4 Oct 2005Flash FloodFlood—$345K———County
13 Aug 1988TornadoTornadoF1$250K———County
18 Jun 2024Flash FloodFlood—$100K———County

Ranked by deaths, then injuries, then NCEI's damage estimate. Deaths and injuries are NCEI counts (direct plus indirect); no personal details are recorded here.

Federal disaster declarations

DeclaredNumberTypeIncidentTitlePrograms
30 Jun 2026DR-4923Major disasterFloodSevere Storms, Tornadoes, And FloodingIndividual assistance
4 Apr 2020DR-4520Major disasterBiologicalCovid-19 PandemicIndividual assistance, Public assistance
13 Mar 2020EM-3454EmergencyBiologicalCovid-19Public assistance
10 Aug 2018DR-4383Major disasterFloodSevere Storms, Straight-Line Winds, And FloodingPublic assistance
9 Aug 2016DR-4276Major disasterSevere StormSevere Storms And FloodingPublic assistance
8 Aug 2013DR-4141Major disasterSevere StormSevere Storms, Flooding, And MudslidesPublic assistance
2 Aug 2012DR-4076Major disasterSevere StormSevere Storms And FloodingPublic assistance
13 Sep 2005EM-3249EmergencyHurricaneHurricane Katrina EvacuationPublic assistance
11 May 2001DR-1369Major disasterFloodFlooding, Severe Storms And TornadoesIndividual assistance, Public assistance
16 Aug 1999DR-1284Major disasterFloodWi-Flood-07/20/99Public assistance
17 Jun 1976EM-3014EmergencyDroughtDroughtPublic assistance
10 Sep 1972DR-352Major disasterFloodHeavy Rains & FloodingIndividual assistance, Public assistance

Declarations in which FEMA designated this county, from the OpenFEMA Disaster Declarations Summaries (v2). DR: major disaster; EM: emergency; FM: fire management assistance. Programs show whether individual or public assistance was made available.

Flood insurance claims

197820022026
NFIP claims by year of loss in Bayfield County, 1978 to 2026 (hover for the amount paid).
Claims since 197816
Paid claims7
Total paid$137K
Average paid claim$20K
Repetitive-loss properties0
Residential policies in force220.2% of 11,557 structures
Year of lossClaimsPaid claimsAmount paidAverage paid
202110$0—
202020$0—
201932$43,897$21,948
201721$8,631$8,631
201652$72,007$36,004
201411$12,090$12,090
201010$0—
198511$394$394

OpenFEMA NFIP claims (v3, as of 8 Sep 2026), aggregated by year of loss; amounts are building, contents and increased-cost-of-compliance payments as recorded. Repetitive-loss counts from the NFIP Multiple Loss Properties file (2 Aug 2026); policies in force from the NFIP Residential Penetration Rates file (3 Aug 2026).

National Risk Index

Overall riskVery Lowscore 35.1 of 100
Expected annual loss$9.3MVery Low
Social vulnerabilityRelatively High
Community resilienceRelatively High
Hazard (NRI)Risk ratingExpected annual loss
Cold waveRelatively Moderate$4,532,666
Inland floodingVery Low$3,241,041
Strong windRelatively Moderate$674,815
LightningRelatively Moderate$297,403
Winter weatherRelatively Moderate$223,087
TornadoVery Low$133,165
Heat waveVery Low$121,314
HailVery Low$94,939
Ice stormVery Low$8,007
DroughtVery Low$5,320
WildfireVery Low$5,172
Coastal floodingVery Low$1,386
LandslideVery Low$183

FEMA National Risk Index, December 2025 release. Ratings are FEMA's relative comparison of counties; expected annual loss is FEMA's modelled estimate of average yearly building, population and agriculture loss. See how to read the NRI.

Hurricane and tropical storm passes

No HURDAT2 track at tropical-storm strength passes within 100 miles of the county's centre point (through the 2025 season).

ZIP codes with flood claims

ZIP codes whose NFIP claims carry this county's code, with the number of claims. Five or more claims are needed for a ZIP page to be indexed.

Questions and answers

How often does it hail in Bayfield County, WI?

NCEI records 110 hail events in Bayfield County since 1950, in 33 different years; that is about 1.4 recorded events a year. 22 reports were golf-ball size (1.75 in) or larger.

Has Bayfield County had a tornado?

Yes. NCEI records 5 tornadoes in Bayfield County since 1950, 1 of them rated (E)F2 or stronger. Tornado deaths recorded: 0.

When was the last federal disaster declaration for Bayfield County?

30 Jun 2026: Severe Storms, Tornadoes, And Flooding, a major disaster declaration for flood. The county appears in 12 declarations since 1953.

How many flood insurance claims have been filed in Bayfield County, and how much was paid?

16 NFIP claims since 1978, 7 of them paid, for $137K in total. FEMA publishes these figures redacted and aggregated; individual properties are not identified.

Is Bayfield County in the National Risk Index's high-risk band?

FEMA's National Risk Index (December 2025) rates the county "Very Low" for overall risk, "Very Low" for expected annual loss, "Relatively High" for social vulnerability and "Relatively High" for community resilience. These ratings are FEMA's relative comparison across all US counties.

How does Bayfield County compare with the rest of Wisconsin?

39.7 recorded events per 100 square miles against 85.6 statewide, and 1.0 NFIP claims per 1,000 residents against 1.6. The comparison table on this page shows each measure beside the state and national figures.

Provenance

Storm events: NOAA NCEI Storm Events Database, yearly details files through 30 Jun 2026 (public domain). Declarations: OpenFEMA DisasterDeclarationsSummaries v2, refreshed 1 Oct 2026. Flood claims: OpenFEMA NfipClaims v3 as of 8 Sep 2026; NfipMultipleLossProperties v1 (2 Aug 2026); NfipResidentialPenetrationRates v1 (3 Aug 2026). Risk index: FEMA National Risk Index, December 2025. Hurricane tracks: NHC HURDAT2 through 2025. Population and area: US Census Bureau, 2021 vintage. Built 1 Oct 2026; see the methodology and corrections pages. Hazard hubs: Hail · Tornado · Flood · Wind · Winter.