You’ve probably seen the “KP index” thrown around. Don’t panic. It’s just a scale from 0 to 9. 0 is a lazy, stay-at-home day. 9 is a rock concert in the sky. For most of us in the lower 48 states (USA), you need a KP of 5 or higher to even peek at the show.
If you’re in Alaska or northern Canada? A KP of 3 might give you a lovely green curtain. Check a site like the NOAA Aurora dashboard. But here’s the secret: the index is a forecast, not a guarantee. Think of it like your weather app saying “30% chance of rain.” Yeah, right.
