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Space Weather
Real-time and forecast space weather from NOAA's Space Weather Prediction Center. The Kp index is a 3-hourly global geomagnetic activity indicator. Higher values indicate stronger geomagnetic storms, with potential impacts on HF radio, GPS, satellite operations, and aurora visibility at lower latitudes.
Planetary Kp Index
1
Quiet
Estimated: 1.00 ·
Updated 7 minutes ago
04:03 UTC
09:22 UTC
3-Day Kp Forecast
| Time (UTC) | Kp | G-Scale | Type |
|---|---|---|---|
| Sun 00:00 | 4 | — | Observed |
| Sun 03:00 | 3.33 | — | Observed |
| Sun 06:00 | 2 | — | Observed |
| Sun 09:00 | 2.67 | — | Estimated |
| Sun 12:00 | 2 | — | Estimated |
| Sun 15:00 | 1.67 | — | Estimated |
| Sun 18:00 | 1.67 | — | Estimated |
| Sun 21:00 | 2 | — | Estimated |
| Mon 00:00 | 1.67 | — | Predicted |
| Mon 03:00 | 2 | — | Predicted |
| Mon 06:00 | 1.67 | — | Predicted |
| Mon 09:00 | 1.67 | — | Predicted |
| Mon 12:00 | 1.67 | — | Predicted |
| Mon 15:00 | 0.67 | — | Predicted |
| Mon 18:00 | 0.67 | — | Predicted |
| Mon 21:00 | 1.67 | — | Predicted |
Solar Indices
F10.7 Flux
109
sfu
90d Mean
—
sfu
Sunspots
56
today
Solar Wind (DSCOVR)
Bz (nT)
-3.18
Bt (nT)
5.13
Flare Probability (1-day)
C-class
60%
M-class
10%
X-class
1%
Kp Index Scale
0
Quiet
No geomagnetic disturbance.
1
Quiet
No geomagnetic disturbance.
2
Quiet
No geomagnetic disturbance.
3
Unsettled
Active aurora at high latitudes.
4
Active
Minor HF radio fadeouts at high latitudes.
5
Minor Storm
G1
Aurora visible at high latitudes; minor HF impact.
6
Moderate Storm
G2
HF fadeouts at high latitudes; aurora at mid-latitudes.
7
Strong Storm
G3
HF radio interference; aurora visible at mid-latitudes.
8
Severe Storm
G4
HF propagation disturbed; widespread aurora.
9
Extreme Storm
G5
HF blackout possible; aurora at low latitudes; GPS degradation.
Data: NOAA Space Weather Prediction Center. Updated 0 seconds ago.