McDuffie County, GA

Supports FEMA checklist item B1-a Hazard identification GEMA template A

14 of the 18 National Risk Index hazards apply here.

Not applicable to this county per NRI, with no federal declaration and no Storm Events record since 1996: avalanche, coastal flooding, tsunami and volcanic activity. That is the evidence for leaving them out of the plan.

Highest expected annual loss (NRI, modeled): Inland Flooding, Tornado and Hail.

Not covered by NRI (local data needed): dam failure (incl. upstream dams); levee failure; flash flood as its own subtype; ice jams; debris flows; erosion (riverine and coastal); land subsidence and sinkholes; expansive soils.

The state hazard mitigation plan also lists hazards for this county; FEMA asks the plan to explain any hazard it leaves out.

Supports FEMA checklist item B1-b Hazard location GEMA template B

• Cold Wave, Drought, Hail, Heat Wave, Ice Storm, Lightning, Strong Wind and Winter Weather: Affects the whole county; national data give no location within it.
• Earthquake, Hurricane, Landslide, Tornado and Wildfire: Varies within the county: the census tracts with the highest National Risk Index rating for this hazard are listed. FEMA's Resilience Analysis and Planning Tool (RAPT) maps the National Risk Index for every tract (https://www.fema.gov/emergency-managers/practitioners/resilience-analysis-and-planning-tool).
• Inland Flooding: The FEMA Flood Insurance Rate Map (FIRM) is the required location source for flooding. See the FEMA Flood Map Service Center (https://msc.fema.gov) for this county.

Supports FEMA checklist item B1-c Hazard extent GEMA template B

Storm Events records for 9 of the 20 NOAA event-type groups mapped to the 18 hazards, with the scale, observed range and worst recorded event for each; the others say which local data are needed.

• Hail: 1.75 in hail, 2018-06-11; same size also recorded on 1979-10-04, 1995-05-19, 1998-04-08, 2012-07-01
• Thunderstorm Wind: 80 kt (92 mph), measurement type not recorded, Thunderstorm Wind, 1997-04-22
• Tornado: EF2 tornado, 2007-03-01, 9 mi within this county, 250 yd wide, $0 property; $0 crops (2007 dollars)

Supports FEMA checklist item B1-d Previous occurrences GEMA template B

Federal declarations for this area: 15 declarations covering 9 separate hazard incidents counted in this packet; each with type, dates and county Public Assistance dollars.

New since the last plan (approved 2022-07-06): EM-3642-GA, DR-4830-GA and EM-3616-GA.

6 statewide declarations listed separately.

Hazards with no Storm Events record and no federal declaration are stated as such (9 of 18).

Storm Events history: 172 records (notable ones in the PDF, all of them in the Excel file).

Supports FEMA checklist item B1-e Probability of future events GEMA template B

FEMA annualized frequency (modeled) for each hazard, with a descriptor from a scale defined in the packet.

• Highly likely: Hail, Lightning and Strong Wind
• Likely: Ice Storm, Inland Flooding, Landslide, Tornado and Winter Weather
• Possible: Hurricane

Historical frequency by intensity band (tornado, hail, wind): 9 bands from Storm Events.

Supports FEMA checklist item B1-f Hazards that vary across jurisdictions GEMA template F

Range of census tract risk scores within the area for 14 of the 18 hazards (6 tracts; rated tracts only).

3 jurisdictions: plan clock, repeat-flood count, Public Assistance dollars and event records naming the place (starting figures from federal data).

Supports FEMA checklist items B2-a and B2-b Vulnerability and potential impacts GEMA template C/D

The packet's table gives county-level starting figures; the plan describes impacts for each jurisdiction and its own assets.

Storm Events damage since 2022-07-06: $800 in county-coded records (23 records); $21,000,000 reported for the zone (5 zone records). Data through 2026-06-30; nominal dollars.

Local data needed

To gather:

• Critical facilities and lifelines per hazard
• A problem statement per jurisdiction per hazard
• Changes in development in hazard-prone areas since the last approval, or a statement of none (E1-a)
• Future assets
• The 2024 Georgia Hazard Mitigation Strategy says the State provides a Level 2 Hazus analysis as part of each county's plan update, and GMIS holds critical-facility data. Use them for B2-a and B2-b.
• The 2024 Georgia Hazard Mitigation Strategy notes that FEMA restricted access to repetitive-loss property data. The current list comes from GEMA/HS or the state NFIP coordinator.

Supports FEMA checklist item B2-a Vulnerability (county context) GEMA template I

Population 21,626; building value $4,957,797,555 and agriculture value $27,344,928 (total, not at risk).

National Risk Index rating Very Low; social vulnerability Relatively High; community resilience Relatively Low.

Supports FEMA checklist item B2-c Repetitive loss properties

Repetitive-loss properties, FMA definition (44 CFR 77.2): 0 repetitive loss, 0 severe repetitive loss. NFIP insurance definition: 0 and 0.

Mitigated 0; insured 0; NFIP data as of 2026-08-02. Counts by occupancy group and for each jurisdiction are in the packet.