On June 8, 2026, a new wave of geomagnetic activity will hit Earth. According to the latest forecast from the NOAA Space Weather Prediction Center, today, June 8, the magnetic storm could intensify to a G3 level, which is classified as a major storm on the NOAA scale. The most intense period is expected in the afternoon and evening: if we convert the forecast to Kyiv time, a noticeable intensification is possible starting around 3:00 p.m., with the peak of the storm expected between 6:00 p.m. and 9:00 p.m.
The cause of the disturbance is a coronal mass ejection that the Sun directed toward Earth on June 6. It is this event’s passage through the magnetosphere that could trigger the strongest fluctuations. NOAA estimates the maximum three-hour Kp index for June 8 at 6.67, corresponding to a G3 level. For comparison, over the past 24 hours, the highest recorded Kp was only 3, meaning there have not yet been any storm-level readings.
Tomorrow, June 9, 2026, the storm is expected to gradually weaken but will not subside completely. In the early hours of the day Kyiv time, approximately between 03:00 and 09:00, periods of G1-G2 are possible, meaning a weak to moderate geomagnetic storm. After that, the geomagnetic situation is forecast to become calmer.
Experts warn that such disturbances may primarily affect radio communications, navigation systems, and the operation of certain technological services. There is also an increased likelihood of brighter auroras at higher latitudes. At the same time, the space weather forecast may be updated throughout the day, so it is advisable to monitor updates in real time.