Live Aurora Outlook
Northern Lights in Oregon
Tonight's Live Forecast
Oregon needs a Kp index of roughly 7+ for visible aurora. Below is tonight's answer, computed from the live Kp reading — updated hourly, explained calmly.
Can you see the northern lights in Oregon tonight?
Unlikely in Oregon tonight
The Kp index is currently 3, below the roughly Kp 7 that Oregon needs for visible aurora. Watch for geomagnetic storm alerts — when Kp reaches 7+, tonight's answer changes.
Aurora in Oregon
What Oregon Needs for a Display
Oregon is on NOAA's Kp 7 view line, so aurora here means a strong G3 storm — a handful of chances per year near solar maximum. The state compensates with world-class darkness: the Oregon Outback in the southeast is a certified Dark Sky Sanctuary, and the high desert east of the Cascades has clean, dry northern horizons that make the most of every event.
NOAA's Kp 7 (G3 storm) view line reaches Oregon. Aurora visibility depends on geomagnetic latitude — which differs from map latitude by up to 15 degrees — so these thresholds come from NOAA SWPC's storm-level view-line estimates, not simple map position. Treat them as odds, not guarantees: at the threshold Kp, expect a glow low on the northern horizon rather than overhead curtains.
Approximate Kp Needed by Location
Based on NOAA SWPC G-scale view-line estimates
Best Viewing Spots in Oregon
When to Look
10 PM – 2 AM local time, centered on midnight. September through March offers the darkest skies. Avoid full-moon nights and city light domes — even 30 minutes of driving makes a real difference.
Don't Refresh This Page All Winter —
get a Kp alert instead
Aurora visibility in Oregon is driven by the Kp index, so a Kp storm alert is effectively an aurora heads-up. The ResonanceOne app sends free push notifications when the Kp index reaches geomagnetic storm level (Kp 5+) — watch for readings of 7+ to match Oregon's threshold.
To be clear: ResonanceOne is not a dedicated aurora app — no aurora map, no location-based visibility forecast. It tracks the underlying signals (Kp index, solar flares, Schumann Resonance) in one calm Activity Index, and alerts you when they spike.
Common Questions
Northern Lights in Oregon: FAQ
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