Independent NOAA SWPC data guide
How to Read the NOAA Aurora Forecast
Use the live OVATION map, UTC timestamps, Kp index and NOAA G-scale together—without mistaking a global space-weather model for a local visibility guarantee.
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Official NOAA SWPC OVATION 30-minute forecast. The colored oval models auroral activity; it is not a local visibility percentage.
Open NOAA source ↗Read the model in four steps
From UTC Timestamp to Viewing Decision
Each layer adds context. No single global indicator replaces the sky above your viewing location.
01
Start with the timestamp
Compare the OVATION observation and forecast times in UTC with the current time. A stale badge means the last valid NOAA response is being retained.
02
Find the auroral oval
The colored ring estimates where aurora is most likely overhead. A brighter point describes modeled activity there—not a percentage for your exact location.
03
Use viewline as a horizon clue
Aurora can sometimes be visible equatorward of the overhead oval, low on the horizon. Terrain, buildings, haze and light pollution can remove that view.
04
Add Kp and the G-scale
Kp summarizes planetary activity from 0–9. NOAA storm levels begin at G1 around Kp 5, but neither number replaces local sky checks.
A practical sequence
Decide for Tonight
Check freshness first, then move from global geometry to the conditions that determine what you can actually see.
- 1Freshness
Confirm forecast time and live/stale status.
- 2Geometry
Check the oval and relevant horizon view.
- 3Activity
Add Kp and G-scale as global context.
- 4Local sky
Check cloud, darkness, moon and light pollution.
- 5Safety
Never use an aurora map as travel or weather-safety guidance.
Model limitations
What OVATION Cannot See
These local factors can override an otherwise promising global aurora forecast.
Cloud cover
The model does not know whether your local sky is clear.
Local darkness
Daylight and twilight can make aurora impossible to see.
Moon and city glow
Moon glare and light pollution reduce contrast and color.
Terrain and horizon
Mountains, trees and buildings can block a low aurora.
No visibility guarantee
Modeled activity does not guarantee naked-eye color or brightness.
Transparent data use
Sources and Attribution
Live values and images come from NOAA's Space Weather Prediction Center. Aurora Hunt presents an independent interface and does not use the NOAA logo.
Understand the forecast
NOAA Aurora Forecast Questions
The essentials for interpreting model time, global activity and local visibility without false certainty.
Is Aurora Hunt an official NOAA product?
No. Aurora Hunt is an independent guide and forecast product that uses public NOAA SWPC data. It is not affiliated with or endorsed by NOAA.
What does the NOAA OVATION map show?
OVATION models the expected location and intensity of the auroral oval. Its colored grid is not a personalized percentage chance of seeing aurora from your address.
How far ahead is the NOAA aurora forecast?
The OVATION image is a short-horizon forecast, commonly described as a 30-minute forecast. Always compare its UTC forecast time with current local darkness and cloud cover.
Is Kp enough to decide whether to go outside?
No. Kp is three-hour planetary geomagnetic context. Visibility also depends on the oval location, magnetic latitude, cloud, darkness, moonlight, light pollution and horizon.
How does Aurora Hunt turn NOAA data into useful alerts?
Aurora Hunt combines public space-weather signals with local cloud, darkness and location context. The app can then notify you when conditions near you become more promising than a global map alone suggests.
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