Lyon County, Kentucky: hazard history
What federal records show has already happened here: disaster declarations, storms, and flood insurance claims. This is a record of the past. It is not a forecast and not a hazard score.
At a glance
What this means
- The event NOAA recorded most often here is Dense Fog, with 75 records.
- The costliest single record is Ice Storm in 2009: $11.2M in property damage, in the dollars of that year.
- The deadliest record is Winter Weather in 2024, with 2 deaths.
- FEMA has declared 22 disasters that named this county, most often for severe storm.
What this can't tell you
- What happens next. Past events do not set the odds of the next one.
- Anything before 1996 from NOAA. That is when NOAA began recording every event type; earlier files hold only tornado, hail and wind, so they are left out on purpose.
- Today's cost. Damage and payments are in the dollars of the year they happened.
- A flood rate. NFIP counts claims but not how many homes were insured, and many flooded homes carry no flood insurance.
- Earthquakes, wildfire perimeters or radar-detected hail. Those records are not tied to counties.
Federal disaster declarations (FEMA)
FEMA declared 22 disasters that named Lyon County between 1996 and 2026.
| Incident type | Disasters | Most recent |
|---|---|---|
| Severe Storm | 11 | 2025 |
| Snowstorm | 3 | 2015 |
| Biological | 2 | 2020 |
| Severe Ice Storm | 2 | 2009 |
| Tornado | 2 | 2021 |
| Hurricane | 1 | 2005 |
| Winter Storm | 1 | 2026 |
Most recent declarations
- EM-3633 2026 · Winter Storm · Severe Winter Storm
- DR-4875 2025 · Severe Storm · Severe Storms, Straight-line Winds, And Tornadoes
- DR-4864 2025 · Severe Storm · Severe Storms, Straight-line Winds, Tornadoes, Flooding, Landslides, And Mudslides
- EM-3626 2025 · Severe Storm · Severe Storms, Straight-line Winds, Tornadoes, And Flooding
- EM-3624 2025 · Severe Storm · Severe Storms, Straight-line Winds, Flooding, And Landslides
- DR-4804 2024 · Severe Storm · Severe Storms, Straight-line Winds, Tornadoes, Landslides, And Mudslides
- DR-4702 2023 · Severe Storm · Severe Storms, Straight-line Winds, Tornadoes, Flooding, Landslides, And Mudslides
- DR-4630 2021 · Tornado · Severe Storms, Straight-line Winds, Flooding, And Tornadoes
- EM-3575 2021 · Tornado · Severe Storms, Straight-line Winds, Flooding, And Tornadoes
- DR-4497 2020 · Biological · Covid-19 Pandemic
Not counted above: 4 statewide declarations, which covered every county in Kentucky. A declaration is a decision to send federal help, not a measure of how bad an event was. Records run from 1953. Source: FEMA OpenFEMA Disaster Declarations Summaries.
Storms recorded by NOAA, by type
| Event type | Records | Deaths | Injuries | Property damage |
|---|---|---|---|---|
| Dense Fog | 75 | 0 | 0 | $0 |
| Winter Weather | 58 | 2 | 0 | $120K |
| Heat | 56 | 0 | 2 | $0 |
| Strong Wind | 53 | 1 | 0 | $80K |
| Thunderstorm Wind | 49 | 0 | 3 | $4.2M |
| Frost/Freeze | 47 | 0 | 0 | $0 |
| Drought | 41 | 0 | 0 | $0 |
| Winter Storm | 26 | 0 | 0 | $500K |
| Flood | 24 | 0 | 0 | $145K |
| Excessive Heat | 17 | 0 | 0 | $0 |
| Hail | 15 | 0 | 0 | $0 |
| Heavy Snow | 14 | 1 | 0 | $0 |
| Tornado | 14 | 1 | 6 | $1.4M |
| Cold/Wind Chill | 13 | 0 | 0 | $25K |
| Flash Flood | 12 | 0 | 0 | $133K |
| Heavy Rain | 8 | 0 | 0 | $0 |
| High Wind | 8 | 0 | 0 | $4.1M |
| Ice Storm | 6 | 0 | 0 | $11.2M |
| Extreme Cold/Wind Chill | 5 | 0 | 0 | $0 |
| Wildfire | 4 | 0 | 0 | $15K |
| Freezing Fog | 3 | 1 | 0 | $0 |
| Funnel Cloud | 2 | 0 | 0 | $0 |
| Lightning | 1 | 0 | 0 | $0 |
Records start in 1996. Damage is NOAA's estimate at the time, in nominal dollars, and is often rounded; it is not insurance claims data. A storm that crossed two NOAA zones in this county is recorded, and counted, once per zone. A storm filed against a forecast zone is counted in every county that zone covers, with the whole storm's damage; do not add these figures across counties.
Year by year
NOAA storm event records in Lyon County each year. The busiest year was 2022, with 32 records.
Show the numbers for every year
| Year | Records | Deaths | Property damage |
|---|---|---|---|
| 1996 | 9 | 0 | $6K |
| 1997 | 12 | 0 | $104K |
| 1998 | 13 | 0 | $5K |
| 1999 | 14 | 0 | $14K |
| 2000 | 12 | 0 | $3K |
| 2001 | 11 | 0 | $34K |
| 2002 | 8 | 0 | $0 |
| 2003 | 14 | 0 | $0 |
| 2004 | 11 | 0 | $25K |
| 2005 | 6 | 0 | $530K |
| 2006 | 22 | 0 | $203K |
| 2007 | 18 | 1 | $1K |
| 2008 | 22 | 0 | $4.5M |
| 2009 | 17 | 0 | $11.4M |
| 2010 | 31 | 0 | $121K |
| 2011 | 30 | 2 | $352K |
| 2012 | 23 | 0 | $31K |
| 2013 | 13 | 0 | $12K |
| 2014 | 16 | 0 | $3K |
| 2015 | 22 | 0 | $8K |
| 2016 | 21 | 0 | $28K |
| 2017 | 17 | 0 | $79K |
| 2018 | 28 | 0 | $94K |
| 2019 | 23 | 0 | $97K |
| 2020 | 12 | 0 | $502K |
| 2021 | 15 | 1 | $2K |
| 2022 | 32 | 0 | $3.1M |
| 2023 | 20 | 0 | $284K |
| 2024 | 20 | 2 | $257K |
| 2025 | 27 | 0 | $173K |
| 2026 | 12 | 0 | $26K |
Years with no record are left out of the table, not shown as zero.
Notable events
Costliest records
- Ice Storm · Jan 26, 2009$11.2MNOAA name: NWS forecast zone · NOAA record 148824
- High Wind · Sep 14, 2008$4.0MNOAA name: NWS forecast zone · NOAA record 125760
- Thunderstorm Wind · Jul 17, 2022$3.0MNOAA name: Lyon County · NOAA record 1035803
- Tornado · Nov 15, 2005$500KNOAA name: Lyon County · NOAA record 5479520
- Winter Storm · Feb 11, 2008$500KNOAA name: NWS forecast zone · NOAA record 77139
Deadliest records
- Winter Weather · Dec 2, 20242 deathsNOAA name: NWS forecast zone · $50K damage · NOAA record 1223891
- Strong Wind · Apr 11, 20071 deathNOAA name: NWS forecast zone · $1K damage · NOAA record 16246
- Heavy Snow · Jan 25, 20111 deathNOAA name: NWS forecast zone · NOAA record 271786
- Freezing Fog · Feb 10, 20111 deathNOAA name: NWS forecast zone · NOAA record 282379
- Tornado · Dec 10, 20211 deathNOAA name: Lyon County · 5 injuries · NOAA record 994954
Each line is one NOAA record, linked to its page at NOAA. One large storm can appear more than once if NOAA recorded it in several zones of this county. Dollars are nominal.
Flood insurance claims (NFIP)
No National Flood Insurance Program claims are on record for Lyon County.
A count of claims, not a rate: NFIP publishes no count of insured homes beside it, and most flood damage is uninsured. Nominal dollars. Records run from 1978 to 2024; claims filed without a county code are not on any county page. Source: FEMA OpenFEMA FIMA NFIP Redacted Claims.
Hazard vulnerability analysis: the probability column for a facility in Lyon County
A hazard vulnerability analysis rates each hazard for probability, impact, preparedness and response. Probability is the one column the county’s federal record can fill — NCEI storm events from 1996 to 2026 and FEMA declarations naming the county — and this is what it says for a facility here, on the 0–3 scale of the all-hazards structure surveyors expect. The other six columns are the facility’s own judgment about its building, and Calchis leaves them blank.
| Hazard | Prob. | Basis, from the county record |
|---|---|---|
| Severe Thunderstorm | 3 | 65 NCEI events over 31 years (2.10/yr). 11 federal disaster declarations naming the county. |
| Flood, External | 3 | 44 NCEI events over 31 years (1.42/yr). No federal disaster declaration of this kind has named the county. |
| Snow Fall / Blizzard / Ice Storm | 3 | 107 NCEI events over 31 years (3.45/yr). 5 federal disaster declarations naming the county. |
| Temperature Extremes | 3 | 138 NCEI events over 31 years (4.45/yr). No federal disaster declaration of this kind has named the county. |
| Drought | 3 | 41 NCEI events over 31 years (1.32/yr). No federal disaster declaration of this kind has named the county. |
| High Wind (non-convective) | 3 | 61 NCEI events over 31 years (1.97/yr). No federal disaster declaration of this kind has named the county. |
| Hurricane / Tropical Storm | 2 | No events of this kind on the county's NCEI record over 31 years. 1 federal disaster declaration naming the county. |
| Tornado | 2 | 14 NCEI events over 31 years (0.45/yr). 2 federal disaster declarations naming the county. |
| Wild Fire | 2 | 4 NCEI events over 31 years (0.13/yr). No federal disaster declaration of this kind has named the county. |
| Epidemic | 2 | 2 federal disaster declarations naming the county. |
| Earthquake | 1 | No federal disaster declaration of this kind has named the county. |
| Landslide | 1 | No events of this kind on the county's NCEI record over 31 years. No federal disaster declaration of this kind has named the county. |
| Tidal Wave / Tsunami | 1 | No events of this kind on the county's NCEI record over 31 years. No federal disaster declaration of this kind has named the county. |
| Volcano | 1 | No events of this kind on the county's NCEI record over 31 years. No federal disaster declaration of this kind has named the county. |
| Dam Inundation | 1 | No federal disaster declaration of this kind has named the county. |
A dash means the record does not speak to that hazard; it is not a zero. Whether a finished document satisfies the CMS Emergency Preparedness Rule is the facility’s finding and its surveyor’s. Complete the HVA for a facility in Lyon County — the technological, human and hazardous-materials rows, the six facility columns, the approval and the printed document — or read the sample analysis on that page first.
How this page was made
- Every figure is counted from public federal records held by Calchis: NOAA NCEI Storm Events, FEMA OpenFEMA Disaster Declarations, and FEMA NFIP claims. Nothing is modeled or estimated.
- NOAA files some events against a county and others against an NWS forecast zone, and publishes a code for both. Records are counted as Lyon County by that code — county records by the county's own FIPS code, zone records through the National Weather Service's published list of which counties each zone covers. No name matching is involved. Of 551 records, 124 were filed against this county and 427 against a forecast zone covering it. A zone storm is counted in every county its zone covers, and its damage figure is the whole storm's, not this county's share — NOAA does not publish that split. So these figures describe this county; they must not be added up across counties.
- Counts last rebuilt from the source records on Sep 15, 2026.
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Recorded history from federal public records. Not a hazard score, a risk score, or a forecast, and not a substitute for professional actuarial or emergency-management assessment. Decision-support intelligence — not a primary alerting or dispatch system. Verify against official sources.