Most of the Aurora Forecast apps will show you all the things we mentioned before in a user-friendly and digestible manner, like the long term KP, the short term KP, and the Ovation Auroral forecast according to your location.Īn Aurora App is the easiest way to forecast Northern Lights The simplest and most straightforward way to know the long-term Aurora forecast and the Northern Lights forecast for tonight is by using an Aurora application. It’s just another way to predict Northern Lights visibility in the long run. However, don’t take this as a rule of thumb. You can check all this data on the following Aurora and solar activity archive.
And 27 days later, on Oct 25th and 26th, the KP was again 5. Twenty-seven days later, on Sept 27th and 28th, the KP was 5. The sun rotates on its axis in a 27-day cycle, and if it ‘spits’ a big amount of solar particles towards the earth, this event will likely occur again after 27 days.įor example, on Aug 31st and the Sept 1 st last year, there was a KP 5. Solar Rotation − Long-Term Northern Lights ForecastĪnother thing to consider in long-term Northern Lights forecast is the solar rotation. If you go to their website and press play, you’ll see an animated graphic with the Northern Lights viewing forecast for today. The Ovation Auroral forecast provides a short-term Aurora forecast. I use the display of SpaceWeatherlive since they also show the moon phase, and it’s very intuitive to use. The best way to forecast the Northern Lights in advance is by using the long-term KP index. It is difficult to predict the Northern Lights over the long term.Ĭoronal mass ejections, which cause most of the solar storms and, therefore, stronger Auroras, are forecast 15 days in advance, but their strength and shape can vary once they get closer to Earth. Long-Term Northern Lights forecast – Long-term KP Index KP6 indicates a solar storm of grade G2, KP7 means a solar storm of grade G3, KP8 means a solar storm of grade G4, and KP9 solar storm of grade G5, the maximum ever recorded. It is already considered a solar storm of grade G1 at KP5. Aurora coronas are common, and the Northern Lights can be visible at lower latitudes, such as in California, France, and even northern Spain. They can cover the entire sky and show rarer colors like red. Aurora coronas are also possible, and the Northern Lights can be visible at lower latitudes, such as in England or the Northern states of the USA. You can see how they move across the sky, possibly showing vivid colors like yellow, pink, or purple tones. KP 4 to 6: The Northern Lights are active. The predominant color is green, and they are most visible in the northern sky at high latitudes. KP 1 to 3: Auroras are usually quiet and faint. KP is just an indicator, but in most situations:
The higher the KP-index, the more likely you will see a big Northern Lights display at higher latitudes.įor example, with a KP 3, you’re very likely to see the Northern Lights in Iceland, but if you want to see the Northern Lights in England, the data says that you’ll need a KP 5 or higher.The higher the KP-index, the further south you can see the Northern Lights.The KP-index has a range of 0-9 and, generally speaking, has the following implications for the Northern Lights forecast: Here you can learn a little more about what causes the northern lights. This Aurora forecast indicator (known as “planetary K-index”) is simply a scale to measure the geomagnetic activity that is directly related to Northern Lights visibility. The KP index is the most common way to forecast the Northern Lights, and you can use it both for short-term and long-term Aurora prediction. In the Northern Lights forecast, there are three main indicators for tracking the Aurora: Now, let’s learn to read the Aurora forecast and the Northern Lights maps so you can predict the Northern Lights in real time.
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