Aurora Strength
๐ก Our Aurora Strength is calculated based on magnetometers located in multiple locations around the North Pole.
๐ For you to see the aurora, you will need this value to be negative. The more the number goes down the more chance you will see brights Northern Lights. In addition, you can also see the percentage of the possibility to see aurora on the icon beside it.
IMF Direction, Bz value
๐ก It is the substance ejected by the sun, and itโs called Interplanetary Magnetic Field or IMF. The IMF enters either from the North or South magnetic pole of the Earth.
๐ To see aurora you need the Bz direction to be negatives (southward). The negatives Bz means the particles have been pushed toward the earth and creating the glowing light which we see as aurora. You are still able to see aurora when the Bz is not negative or around the 0nT, but it will be a less show.
๐You can use the emoji in the information overlay as a guideline.
IMF Strength, Bt Value
๐ก Like above it is the substance ejected by the sun called IMF. It arrives with a certain strength on Earth.
๐ To see bright Northern Lights you need the strength (Bt) to be positive. The stronger it gets, the more intense you will be able to see the aurora.
๐You can use the emoji in the information overlay as a guideline.
Solar Wind
๐กThe solar wind is the stream of energetic particles that flow outward from the sun.
๐ The faster it gets the stronger aurora you will see.
Cloud coverage.
๐ก It refers to when the sky gets covered by clouds.
๐ The clearer the sky is the more likely you will see the aurora and get a clear picture of it.
๐ The best tip is to find the gap in the sky. You can toggle the different levels of cloud on the app we have high cloud, middle cloud, and low cloud. The low cloud is your worst enemy to see the aurora.
Step 3: Aurora forecast today
On the home page of the app, you will get the real-time aurora forecast. By sliding to the โtodayโ page you will get the Northern Lights forecast for today. There you will see the KP index, the last sun rotation, weather forecast along with the sun and moon forecast.
On the first block there, you will see the last sun rotation from the previous 27 days. Best to use it as a guide along with the real-time data ๐
If you want to check the forecast for the next days you can slide to the tomorrow, next day and long-term page. Please note that it takes any solar event 3 days to reach the earth and the forecast can change anytime. You might see a good prediction for the next day right now but it may change anytime, best to recheck again ๐
That is pretty much what you need to know to read the aurora forecast in an easy way. If you donโt remember all these details donโt worry you are not the only one ๐ You can always see all explanations on the app, itโs short and very easy to read.
If you want to learn more about aurora, we recommend taking a look at the ebook called The Aurora Chase, the Ultimate Guide to Experience the Light by Adrien Mauduit.