Geomagnetic storms in real time
Track the state of Earth's magnetosphere. Current Kp, 72-hour forecast and an interactive chart — powered by NOAA SWPC.
Current Kp index
G0· СпокойноUpdated: 23 Jul, 01:02 UTC
Magnetic storms today
Hourly status and a 72-hour forecast with G1–G5 storm classification.
Magnetic storms tomorrow
Tomorrow's forecast: expected max Kp, hourly outlook and recommendations.
Storm chart
Interactive Kp chart over 1, 3, 7 or 30 days with storm zones and optional Dst overlay.
By city
Magnetic storms in your city: local time, geomagnetic latitude, aurora probability.
FAQ
What is the Kp index?+
Kp is the planetary geomagnetic activity index. It is derived every 3 hours from 13 magnetic observatories and reflects global magnetic field disturbance.
How do I read the G1–G5 scale?+
G1 – minor storm (Kp 5), G2 – moderate (Kp 6), G3 – strong (Kp 7), G4 – severe (Kp 8), G5 – extreme (Kp 9). Below Kp 5 the magnetosphere is considered quiet.
Does Kp differ by city?+
No. Kp is a global index — the same for the whole Earth. Local impact depends on geomagnetic latitude: storms are more noticeable at higher latitudes.
Where do you get the data?+
Primary source: NOAA Space Weather Prediction Center (services.swpc.noaa.gov). Updated every 10 minutes.