Mason County, West Virginia: hazard history

FEMA declared 21 disasters that named Mason County between 1967 and 2026.

Most recent declarations

• EM-3639 2026 · Winter Storm · Severe Winter Storm
• DR-4603 2021 · Severe Ice Storm · Severe Winter Storms
• EM-3450 2020 · Biological · Covid-19
• DR-4517 2020 · Biological · Covid-19 Pandemic
• DR-4359 2018 · Mud/Landslide · Severe Storms, Flooding, Landslides, And Mudslides
• DR-4132 2013 · Flood · Severe Storms And Flooding
• EM-3358 2012 · Hurricane · Hurricane Sandy
• DR-4071 2012 · Severe Storm · Severe Storms And Straight-line Winds
• EM-3345 2012 · Severe Storm · Severe Storms
• EM-3221 2005 · Hurricane · Hurricane Katrina Evacuation

Not counted above: 6 statewide declarations, which covered every county in West Virginia. 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.

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.

NOAA storm event records in Mason County each year. The busiest year was 2022, with 25 records.

Years with no record are left out of the table, not shown as zero.

Costliest records

1. Thunderstorm Wind · Jun 29, 2012$1.5M
   NOAA name: Mason County · NOAA record 394953
2. Ice Storm · Feb 16, 2003$1.0M
   NOAA name: NWS forecast zone · NOAA record 5341575
3. Flood · Mar 2, 1997$700K
   NOAA name: NWS forecast zone · NOAA record 5594412
4. Flood · Sep 17, 2004$500K
   NOAA name: NWS forecast zone · NOAA record 5423794
5. Heavy Rain · Jun 13, 2013$400K
   NOAA name: Mason County · NOAA record 456493

Deadliest records

1. Heavy Rain · May 5, 19961 death
   NOAA name: Mason County · NOAA record 5555091
2. Heavy Rain · Jan 30, 20131 death
   NOAA name: Mason County · NOAA record 426639
3. Thunderstorm Wind · Jul 25, 20161 death
   NOAA name: Mason County · NOAA record 638954

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.

The National Flood Insurance Program paid $1.1M on 135 claims in Mason County from 1978 to 2022.

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.

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.

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 Mason 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.

• 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 Mason 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 435 records, 261 were filed against this county and 174 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. Left out: 8% of West Virginia's NOAA records, which are marine zones or zones NWS does not map to a county.
• Counts last rebuilt from the source records on Sep 15, 2026.