Hawaii tornado risk
Honolulu County has the highest tornado risk in Hawaii, scoring 33.2 out of 100 — rated "Relatively Low" by FEMA's National Risk Index.
| # | County | NRI score | Rating |
NOAA events 2016–2026 |
|---|---|---|---|---|
| 1 | Honolulu County | 33.2 | Relatively Low | 0 |
| 2 | Hawaii County | 7.4 | Very Low | 0 |
| 3 | Maui County | 5.9 | Very Low | 0 |
| 4 | Kauai County | 2.4 | Very Low | 0 |
| 5 | Kalawao County | 1 | Very Low | 0 |
Source: FEMA National Risk Index v1.20.0, December 2025. Scores are 0–100 percentile rankings among all US counties. See the methodology page for definitions. Download the full CSV for all counties.
Tornado risk nationally:
Other hazard risks in Hawaii:
Frequently asked questions
What is the highest tornado risk county in Hawaii?
Honolulu County, HI has the highest tornado risk in Hawaii, with a FEMA National Risk Index score of 33.2 out of 100 (rated "Relatively Low").
What causes tornado risk in Hawaii?
Tornado risk concentrates in the central and southern plains ("Tornado Alley") and the Southeast ("Dixie Alley"), where atmospheric conditions favor supercell thunderstorm development. The highest scores often belong to counties with significant mobile home and manufactured housing stock, which carries disproportionate tornado mortality risk.