NOAA / Space Weather Prediction Center

Geomagnetic Field

Geomagnetic Activity Forecast
Plot of past 3 days of Kp Index
Product Description:
Daily probabilities of high-latitude, mid-latitude, and planetary geomagnetic disturbance levels over the next one, two, and three days.

Target Users: Product users include industries sensitive to strong variations in the geomagnetic field, such as: electric power, pipeline, drilling, and surveying.

Geomagnetic Activity Forecast
Cadence: Daily
Data Source: Solar and solar wind measurements, ground-based magnetometer measurements, and numerical prediction models of the solar wind and solar disturbances

Current Geomagnetic Activity Alerts
Product Description:
Timeline of currently active and recent alerts of geomagnetic activity. Alerts are issued when ground-based magnetometer fluctuations exceed predetermined thresholds.

Target Users: Product users include industries sensitive to strong variations in the geomagnetic field, such as: electric power, pipeline, drilling, and surveying.

Current Geomagnetic Activity Alerts
Cadence: As Issued
Data Source: Ground-based magnetometers