Everything so far ran on history. The Sun is doing something right now. End by making a real call with live data, and come back tomorrow to see if you were right.
Loading tonight's outlook…
Two pictures decide a call like this one. The first is where the aurora is right now. The second is which way the magnetic field arriving at Earth points, because that is what opens or shuts the door.
Will Kp reach 5 or more (a G1 storm, aurora visible from the northern US, Scotland and Scandinavia) in the next 24 hours?
Come back after 24 hours. This page keeps your call in this browser and scores it against the measured Kp, the same way the site scores its own alerts.
Free storm alerts by email: a heads-up when a big Earth-directed CME launches, then a go-now when it reaches the L1 monitor. Occasional, never spam.
Unsubscribe any time · Privacy