Oregon Tornadoes
Oregon averages 2 tornadoes per year - one of the lowest counts in the continental US. Pacific Ocean effect and mountain terrain suppress most tornado formation.
Oregon Tornado Statistics
- Average tornadoes per year: ~2
- Peak season: Spring and summer
- Historical: Very rare significant events
Why So Rare?
Pacific Cold Water
Cold Pacific Ocean prevents warm moist air needed for tornadoes.
Cascade Mountains
Cascades disrupt weather patterns.
Marine Influence
Coastal cool air limits convection.
Storm Track
Major storms typically stay far north or approach from ocean.
Regional Oregon Risk
Interior Valleys
Willamette Valley - most common tornado area.
Coastal Areas
Very rare tornadoes.
Eastern Oregon
Higher elevations. Rare tornadoes.
Living in Oregon
- Tornado risk extremely low
- Focus on other severe weather (fire, flooding)
- Basic weather awareness sufficient
- NOAA weather radio for general severe weather
Try the interactive simulator
Place an EF0–EF5 tornado anywhere in the world and see modeled fatalities, structural damage, and economic loss based on real census data.
Launch simulator →🛡️ Preparedness resources
🚨NOAA weather radio
Midland WR120 — the standard
Storm shelter installation
Local certified installers
Try the interactive simulator
Place an EF0–EF5 tornado anywhere in the world and see modeled fatalities, structural damage, and economic loss based on real census data.
Launch simulator →