Question 1

What is the current Kp index?

Accepted Answer

The current planetary Kp index is 0, indicating quiet geomagnetic conditions. The Kp index is updated every minute from NOAA's Space Weather Prediction Center.

Question 2

What does the Kp index mean?

Accepted Answer

The Kp index measures geomagnetic activity on a scale of 0-9. Higher values indicate stronger geomagnetic storms that can trigger aurora activity and impact satellite operations.

Source: NOAA Space Weather Prediction Center

Question 3

Can I see aurora tonight?

Accepted Answer

Aurora becomes visible at Kp 5+ for mid-latitudes (like northern US/UK) and Kp 7+ for lower latitudes. Check the current Kp index above and look north after dark if conditions are favorable.

Question 4

What causes geomagnetic storms?

Accepted Answer

Geomagnetic storms are caused by solar wind disturbances, coronal mass ejections (CMEs), and solar flares from the Sun. These events send charged particles toward Earth, interacting with our magnetosphere.

Question 5

How does space weather affect satellites?

Accepted Answer

High Kp values and geomagnetic storms can cause satellite drag in low Earth orbit, GPS signal degradation, communication disruptions, and increased radiation exposure for astronauts and high-altitude flights.

Space Weather NOW

Recent Kp Readings

Kp Index Scale

What Kp Means