ARKANSAS NUCLEAR ONE
OperatingNuclear power plant
- Capacity
- 1,845 MW
- Primary fuel
- Nuclear
- County
- Pope County
- Operator
- ENTERGY ARKANSAS INC
- Status
- Operating
- Commissioned
- 1974
- EIA plant ID
- 8055
- Coordinates
- 35.3106, -93.2310
ARKANSAS NUCLEAR ONE, a 1,845 MW Nuclear power plant in Pope County, Arkansas. Operated by ENTERGY ARKANSAS INC, commissioned 1974.
Weather peril exposure
ARKANSAS NUCLEAR ONE is a 1,845 MW nuclear power plant in Pope County, AR, operated by ENTERGY ARKANSAS INC, commissioned in 1974. Pope County carries elevated modeled catastrophe exposure in the FEMA National Risk Index, scoring 3.0 of 5 at the 49th national percentile. Ice storm is the leading peril, rated Very High by FEMA at the 96th percentile.
The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to a nuclear plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.
Pope County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Ice storm | Very High | 96th | 4.8 of 5 | 1.4 |
| Tornado | Relatively High | 90th | 4.6 of 5 | 0.58 |
| Riverine flooding | Relatively Moderate | 88th | 4.5 of 5 | 1.5 |
| Winter weather | Relatively Moderate | 86th | 4.4 of 5 | 6.8 |
| Earthquake | Relatively Low | 84th | 4.4 of 5 | <0.01 |
| Lightning | Relatively Moderate | 75th | 4.0 of 5 | 60.5 |
| Wildfire | Relatively Low | 70th | 3.8 of 5 | <0.01 |
| Strong wind | Relatively Moderate | 63rd | 3.5 of 5 | 3.5 |
| Heat wave | Relatively Moderate | 60th | 3.4 of 5 | 16.0 |
| Hail | Relatively Low | 48th | 2.9 of 5 | 5.3 |
| Hurricane | Very Low | 32nd | 2.3 of 5 | <0.01 |
Perils not assessed in Pope County
These perils carry no usable National Risk Index figure for this county, so they are excluded from the scoring rather than scored zero. A zero would claim the peril was assessed and found benign.
| Peril | Why it is not scored |
|---|---|
| Coastal flooding | FEMA rating is "Not Applicable" for this county |
Model hail, wind and flood exposure for Pope County in the weather risk calculator
Ratings are the FEMA National Risk Index county hazard ratings; the peril score is a Bywatts transform of the FEMA national percentile. Full data sources and the solar vulnerability methodology are in the weather risk calculator.
Modeled estimate for screening and negotiation. Built from FEMA National Risk Index county hazard data and a solar vulnerability layer documented above. Not a quote, a binder, or actuarial advice, and not a substitute for a carrier's own model. Hazard data: FEMA National Risk Index December 2025, synced 2026-07-24. Resolution is county level, not site level.