City aurora forecast
Aurora Forecast for Calgary, Alberta
No visible aurora signal for Calgary right now
Excellent Canadian prairie location once Kp reaches moderate levels and skies stay dry.
Current Kp: --. Calgary typically needs about Kp 5 before reliable visual reports start showing up.
Calgary sits at 51.0° latitude with an estimated Bortle 6 urban-light baseline. Drive away from core lighting before judging a marginal Kp event.
Current cloud cover: 98%. The page is currently in night mode for local weather timing.
Quiet conditions keep HF polar paths closer to normal.
Keep polar routes on watch and re-check if Bz turns south.
Open full aurora dashboardThe auroral oval usually sits well north of mid-latitudes during quiet conditions. A stronger Kp expands that oval southward. For Calgary, the practical storm threshold is about Kp 5, but a long southward Bz interval matters almost as much as the raw Kp number.
If you are below about 50° latitude, treat Kp 5 as the first serious threshold. Above 60° latitude, even Kp 2-3 can be enough under dark skies.