NOAA / Space Weather Prediction Center

Geomagnetic Field Disturbances

Three-day Mid-Latitude Forecast

Mid-Latitude Geomagnetic ConditionsForecast Date
Oct 26
Oct 27
Oct 28
Probability of Active
20%
30%
20%
Probability of Minor Storm
5%
10%
5%
Probability of Major (Severe) Storm
1%
1%
1%


Three-day High-Latitude Forecast:

High-Latitude Geomagnetic ConditionsForecast Date
Oct 26
Oct 27
Oct 28
Probability of Active
15%
15%
20%
Probability of Minor Storm
30%
30%
30%
Probability of Major (Severe) Storm
25%
40%
25%


Three-Day Planetary K Index Forecast

Planetary K
Forecast Date
Forecast Hours (UTC)
00-0303-0606-0909-1212-1515-1818-2121-24
Oct 26
3
2
2
2
2
2
2
3
Oct 27
4
3
2
3
2
2
2
3
Oct 28
2
2
3
2
3
3
3
3


Past 3-days Planetary K Index

Plot of past 3 days of Kp Index

Current alerts of geomagnetic disturbances