Ogle County, Illinois: hazard history

FEMA declared 14 disasters that named Ogle County between 1973 and 2020.

Most recent declarations

• EM-3435 2020 · Biological · Covid-19
• DR-4489 2020 · Biological · Covid-19 Pandemic
• DR-4116 2013 · Flood · Severe Storms, Straight-line Winds, And Flooding
• DR-1960 2011 · Snowstorm · Severe Winter Storm And Snowstorm
• DR-1935 2010 · Severe Storm · Severe Storms And Flooding
• EM-3283 2008 · Snowstorm · Record Snow And Near Record Snow
• EM-3269 2006 · Snowstorm · Snow
• EM-3230 2005 · Hurricane · Hurricane Katrina Evacuation
• EM-3161 2000 · Snowstorm · Illinois Winter Snow Storms
• DR-1129 1996 · Severe Storm · Severe Storms And Flooding

Not counted above: 2 statewide declarations, which covered every county in Illinois. 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 Ogle County each year. The busiest year was 2008, with 36 records.

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

Costliest records

1. Tornado · Apr 9, 2015$10.0M
   NOAA name: Ogle County · NOAA record 574337
2. Thunderstorm Wind · Aug 4, 2008$300K
   NOAA name: Ogle County · NOAA record 131240
3. Flash Flood · Jul 24, 2010$268K
   NOAA name: Ogle County · NOAA record 254377
4. Flash Flood · Jun 22, 2009$250K
   NOAA name: Ogle County · NOAA record 185558
5. Thunderstorm Wind · Apr 10, 2013$150K
   NOAA name: Ogle County · NOAA record 438760

Deadliest records

1. Dense Fog · Mar 9, 20152 deaths
   NOAA name: NWS forecast zone · NOAA record 565144
2. Extreme Cold/Wind Chill · Jan 4, 20091 death
   NOAA name: NWS forecast zone · NOAA record 150423
3. Winter Storm · Dec 11, 20101 death
   NOAA name: NWS forecast zone · NOAA record 270813

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 $3.1M on 305 claims in Ogle County from 1978 to 2024.

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 Ogle 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 Ogle 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 536 records, 387 were filed against this county and 149 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: 1% of Illinois'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.