Jefferson County, Texas: 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 Thunderstorm Wind, with 131 records.
- The costliest single record is Flash Flood in 2017: $3.0B in property damage, in the dollars of that year.
- The deadliest record is Flash Flood in 2017, with 5 deaths.
- FEMA has declared 31 disasters that named this county, most often for hurricane.
- The worst year for flood insurance claims was 2017, with 7,338 claims.
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 31 disasters that named Jefferson County between 1973 and 2024.
| Incident type | Disasters | Most recent |
|---|---|---|
| Hurricane | 10 | 2024 |
| Flood | 7 | 2019 |
| Severe Storm | 5 | 2002 |
| Fire | 3 | 2011 |
| Biological | 2 | 2020 |
| Severe Ice Storm | 2 | 2021 |
| Coastal Storm | 1 | 2001 |
| Other | 1 | 2003 |
Most recent declarations
- DR-4798 2024 · Hurricane · Hurricane Beryl
- EM-3554 2021 · Severe Ice Storm · Severe Winter Storm
- DR-4586 2021 · Severe Ice Storm · Severe Winter Storms
- EM-3540 2020 · Hurricane · Tropical Storms Marco And Laura
- DR-4572 2020 · Hurricane · Hurricane Laura
- DR-4485 2020 · Biological · Covid-19 Pandemic
- EM-3458 2020 · Biological · Covid-19
- DR-4466 2019 · Flood · Tropical Storm Imelda
- DR-4332 2017 · Hurricane · Hurricane Harvey
- DR-4029 2011 · Fire · Wildfires
Not counted above: 102 statewide declarations, which covered every county in Texas. 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 |
|---|---|---|---|---|
| Thunderstorm Wind | 131 | 1 | 6 | $4.4M |
| Flash Flood | 105 | 10 | 1 | $3.3B |
| Hail | 85 | 0 | 0 | $0 |
| Astronomical Low Tide | 79 | 0 | 0 | $0 |
| Tornado | 19 | 0 | 20 | $26.4M |
| Lightning | 14 | 3 | 9 | $576K |
| Funnel Cloud | 12 | 0 | 0 | $0 |
| Coastal Flood | 10 | 0 | 0 | $1K |
| Flood | 10 | 0 | 0 | $155K |
| Winter Weather | 8 | 1 | 0 | $10K |
| Drought | 7 | 0 | 0 | $0 |
| Heavy Rain | 7 | 0 | 0 | $0 |
| Tropical Storm | 7 | 0 | 0 | $5.3M |
| Hurricane (Typhoon) | 6 | 5 | 12 | $1.6B |
| Storm Surge/Tide | 6 | 0 | 0 | $500.0M |
| Heat | 4 | 0 | 0 | $0 |
| Strong Wind | 4 | 0 | 0 | $21K |
| Winter Storm | 4 | 1 | 0 | $0 |
| Dense Fog | 3 | 2 | 4 | $6.1M |
| High Wind | 3 | 0 | 0 | $300K |
| Cold/Wind Chill | 2 | 0 | 0 | $550K |
| Ice Storm | 2 | 0 | 10 | $10.0M |
| Seiche | 1 | 0 | 0 | $0 |
| Wildfire | 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.
Year by year
NOAA storm event records in Jefferson County each year. The busiest year was 2024, with 40 records.
Show the numbers for every year
| Year | Records | Deaths | Property damage |
|---|---|---|---|
| 1996 | 9 | 0 | $165K |
| 1997 | 9 | 0 | $10.2M |
| 1998 | 27 | 1 | $5.8M |
| 1999 | 11 | 0 | $785K |
| 2000 | 20 | 0 | $3.6M |
| 2001 | 14 | 0 | $11.2M |
| 2002 | 13 | 1 | $7.7M |
| 2003 | 14 | 0 | $1.3M |
| 2004 | 11 | 0 | $67K |
| 2005 | 9 | 0 | $1.3B |
| 2006 | 13 | 1 | $482K |
| 2007 | 11 | 1 | $25.1M |
| 2008 | 9 | 0 | $600.3M |
| 2009 | 25 | 1 | $20.4M |
| 2010 | 17 | 0 | $636K |
| 2011 | 16 | 1 | $481K |
| 2012 | 14 | 2 | $6.0M |
| 2013 | 10 | 0 | $105K |
| 2014 | 19 | 0 | $55K |
| 2015 | 17 | 0 | $32K |
| 2016 | 12 | 0 | $5K |
| 2017 | 29 | 5 | $3.0B |
| 2018 | 22 | 0 | $1.5M |
| 2019 | 19 | 3 | $301.0M |
| 2020 | 15 | 6 | $270.1M |
| 2021 | 11 | 1 | $5.3M |
| 2022 | 17 | 0 | $131K |
| 2023 | 29 | 0 | $78K |
| 2024 | 40 | 0 | $1.1M |
| 2025 | 24 | 0 | $101K |
| 2026 | 24 | 0 | $1K |
Years with no record are left out of the table, not shown as zero.
Notable events
Costliest records
- Flash Flood · Aug 27, 2017$3.0BNOAA name: JEFFERSON · 5 deaths · 1 injury · NOAA record 719342
- Hurricane (Typhoon) · Sep 23, 2005$1.3BNOAA name: JEFFERSON · NOAA record 5475146
- Storm Surge/Tide · Sep 12, 2008$500.0MNOAA name: JEFFERSON · NOAA record 136895
- Flash Flood · Sep 18, 2019$300.0MNOAA name: JEFFERSON · 3 deaths · NOAA record 856471
- Hurricane (Typhoon) · Aug 26, 2020$220.0MNOAA name: JEFFERSON · 5 deaths · NOAA record 918105
Deadliest records
- Flash Flood · Aug 27, 20175 deathsNOAA name: JEFFERSON · $3.0B damage · 1 injury · NOAA record 719342
- Hurricane (Typhoon) · Aug 26, 20205 deathsNOAA name: JEFFERSON · $220.0M damage · NOAA record 918105
- Flash Flood · Sep 18, 20193 deathsNOAA name: JEFFERSON · $300.0M damage · NOAA record 856471
- Dense Fog · Nov 22, 20122 deathsNOAA name: JEFFERSON · $6.0M damage · NOAA record 421680
- Thunderstorm Wind · Aug 14, 19981 deathNOAA name: JEFFERSON · $75K damage · 1 injury · NOAA record 5663752
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)
The National Flood Insurance Program paid $1.2B on 22,660 claims in Jefferson County from 1978 to 2024.
| Year | Claims | Paid |
|---|---|---|
| 2017 | 7,338 | $773.4M |
| 2019 | 2,771 | $228.4M |
| 2005 | 2,634 | $38.7M |
| 2008 | 1,604 | $64.6M |
| 1980 | 1,584 | $6.2M |
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 Jefferson 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 |
|---|---|---|
| Hurricane / Tropical Storm | 3 | 19 NCEI events over 31 years (0.61/yr). 11 federal disaster declarations naming the county. |
| Severe Thunderstorm | 3 | 230 NCEI events over 31 years (7.42/yr). 5 federal disaster declarations naming the county. |
| Flood, External | 3 | 132 NCEI events over 31 years (4.26/yr). 7 federal disaster declarations naming the county. |
| Wild Fire | 3 | 1 NCEI event over 31 years (0.03/yr). 3 federal disaster declarations naming the county. |
| Tornado | 2 | 19 NCEI events over 31 years (0.61/yr). No federal disaster declaration of this kind has named the county. |
| Snow Fall / Blizzard / Ice Storm | 2 | 14 NCEI events over 31 years (0.45/yr). 2 federal disaster declarations naming the county. |
| Temperature Extremes | 2 | 6 NCEI events over 31 years (0.19/yr). No federal disaster declaration of this kind has named the county. |
| Drought | 2 | 7 NCEI events over 31 years (0.23/yr). No federal disaster declaration of this kind has named the county. |
| High Wind (non-convective) | 2 | 7 NCEI events over 31 years (0.23/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 | 1 NCEI event over 31 years (0.03/yr). 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 Jefferson 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 by county and others by forecast zone, and names both. Records are counted as Jefferson County when their NOAA name is this county's name, alone or with a word like “Coastal” or “Inland” in front. The county codes NOAA also publishes have not been loaded for Texas yet; when they are, this page will count by code instead, and some counties' records will grow. NOAA names counted here: JEFFERSON, LOWER JEFFERSON COUNTY, UPPER JEFFERSON COUNTY. Zones named for something else, such as a mountain range or two counties at once, are left out: 1% of Texas's NOAA records.
- 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.