Corvallis, OR
Local storm history & FEMA National Risk Index data
Corvallis is rated Relatively Moderate for overall natural hazard risk — near the middle compared to other US counties — based on FEMA's National Risk Index for Benton County, OR. The county's highest-rated hazards are landslide, earthquake, and heat wave.
Storm events near Corvallis
NOAA-recorded tornado, hail, and flood events within 25 miles of Corvallis's center, 2016–2026 — the only hazards NOAA reports with exact coordinates, so these counts are specific to Corvallis itself, not the whole county.
County-wide hazard risk
Every other hazard FEMA and NOAA track — including drought — is only scored at the county level. These are Benton County's FEMA National Risk Index scores, covering Corvallis along with the rest of the county, not a Corvallis-specific figure.
| Hazard | NRI score | Rating |
|---|---|---|
| Wildfire | 37.1 | Very Low |
| Inland Flooding | 74.8 | Relatively Moderate |
| Coastal Flooding | 0 | No Rating |
| Earthquake | 97.2 | Relatively Moderate |
| Heat Wave | 80.5 | Relatively Moderate |
| Tornado | 12.7 | Very Low |
| Avalanche | 11.1 | Very Low |
| Cold Wave | 15.5 | Very Low |
| Drought | 14 | Very Low |
| Hail | 6.2 | Very Low |
| Hurricane | — | Not Applicable |
| Ice Storm | 56.5 | Relatively Low |
| Landslide | 97.5 | Relatively Moderate |
| Lightning | 41.2 | Relatively Low |
| Strong Wind | 13.5 | Very Low |
| Tsunami | — | Not Applicable |
| Volcanic Activity | 21.5 | Very Low |
| Winter Weather | 45.1 | Relatively Low |
Source: FEMA National Risk Index v1.20.0, December 2025. See the methodology page for definitions, or the full Benton County risk profile for disaster declarations, social vulnerability, and climate projection data.
More on Benton County:
Frequently asked questions
What natural hazards is Corvallis, OR at risk of?
Corvallis is rated Relatively Moderate for overall natural hazard risk by FEMA's National Risk Index — near the middle compared to other US counties. The highest-rated hazards for Benton County, where Corvallis is located, are landslide, earthquake, and heat wave.
What is Corvallis's biggest natural hazard risk?
Landslide is the highest-rated hazard for Benton County, where Corvallis is located, scoring 97.5 out of 100 on FEMA's National Risk Index (rated "Relatively Moderate").
Is Corvallis a high-risk area for natural disasters?
Somewhat — Corvallis carries near the middle compared to other US counties for overall natural hazard risk, per FEMA's National Risk Index rating of "Relatively Moderate" for Benton County.
Has Corvallis had tornadoes, hail, or flooding?
NOAA has recorded 3 tornado, 2 hail, 24 inland flooding events within 25 miles of Corvallis since 2016.