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Notes on the northern lights
Where and when to look, how to read a cloud forecast, and news from Aurora Atlas. Follow along in your feed reader with the RSS feed.
- Best time to see the northern lights in TromsøWhen to visit Tromsø for the aurora, which hours of the night to watch, how the moon and weather change things, and how to choose a spot.
- Clouds are the real aurora forecastWhy cloud cover decides most aurora nights, why one cloud percentage misleads, and how to use hourly forecasts and a car to find a clear sky.
- What the Kp index really tells you (and what it doesn't)Kp is a global, three-hour measure of geomagnetic activity. Here is what it means for your aurora night, why location matters, and what it leaves out.