Tornado Risk in Oregon
All Oregon counties ranked by FEMA National Risk Index tornado score
Tornado risk — violently rotating columns of air capable of catastrophic local damage — is rated for 36 of 36 Oregon counties in FEMA's National Risk Index. Washington County carries the state's highest tornado score at 53.1, with $2M in expected annual tornado losses.
No Oregon county reaches the High band for tornado, and expected annual losses from tornado total roughly $6M statewide. The full ranking below links to each county's complete 18-hazard risk profile.
County Rankings — Tornado
| # | County | Tornado Score | Rating | Ann. Freq. | Ann. Loss |
|---|---|---|---|---|---|
| 1 | Washington County | Low | 0.07 / yr | $2M | |
| 2 | Multnomah County | Low | 0.04 / yr | $1M | |
| 3 | Clackamas County | Low | 0.15 / yr | $1M | |
| 4 | Marion County | Very Low | 0.10 / yr | $268K | |
| 5 | Lane County | Very Low | 0.12 / yr | $248K | |
| 6 | Yamhill County | Very Low | 0.07 / yr | $237K | |
| 7 | Linn County | Very Low | 0.13 / yr | $152K | |
| 8 | Columbia County | Very Low | 0.06 / yr | $130K | |
| 9 | Umatilla County | Very Low | 0.10 / yr | $91K | |
| 10 | Benton County | Very Low | 0.04 / yr | $125K | |
| 11 | Polk County | Very Low | 0.06 / yr | $124K | |
| 12 | Clatsop County | Very Low | 0.07 / yr | $77K | |
| 13 | Lincoln County | Very Low | 0.06 / yr | $56K | |
| 14 | Tillamook County | Very Low | 0.11 / yr | $67K | |
| 15 | Malheur County | Very Low | 0.24 / yr | $49K | |
| 16 | Deschutes County | Very Low | 0.05 / yr | $62K | |
| 17 | Hood River County | Very Low | 0.03 / yr | $45K | |
| 18 | Jackson County | Very Low | 0.02 / yr | $30K | |
| 19 | Douglas County | Very Low | 0.05 / yr | $22K | |
| 20 | Union County | Very Low | 0.06 / yr | $25K | |
| 21 | Baker County | Very Low | 0.09 / yr | $21K | |
| 22 | Josephine County | Very Low | 0.02 / yr | $15K | |
| 23 | Wasco County | Very Low | 0.06 / yr | $18K | |
| 24 | Klamath County | Very Low | 0.05 / yr | $12K | |
| 25 | Wallowa County | Very Low | 0.10 / yr | $10K | |
| 26 | Morrow County | Very Low | 0.05 / yr | $14K | |
| 27 | Coos County | Very Low | 0.01 / yr | $11K | |
| 28 | Crook County | Very Low | 0.05 / yr | $9K | |
| 29 | Curry County | Very Low | 0.02 / yr | $5K | |
| 30 | Jefferson County | Very Low | 0.03 / yr | $7K | |
| 31 | Harney County | Very Low | 0.12 / yr | $4K | |
| 32 | Grant County | Very Low | 0.07 / yr | $3K | |
| 33 | Lake County | Very Low | 0.08 / yr | $3K | |
| 34 | Sherman County | Very Low | 0.01 / yr | $1K | |
| 35 | Gilliam County | Very Low | 0.02 / yr | $1K | |
| 36 | Wheeler County | Very Low | 0.02 / yr | $629 |
36 Oregon counties with measurable tornado risk. See the national tornado ranking or all Oregon counties by overall risk.
Frequently Asked Questions
Which Oregon county has the highest tornado risk?
Washington County has the highest FEMA tornado risk score in Oregon at 53.1 (Low), with $2M in expected annual losses and about 0.07 events per year.
How many Oregon counties face significant tornado risk?
36 Oregon counties record measurable tornado risk in FEMA's National Risk Index; 0 of them are rated High or Very High.