From the Russian Institute,
morning summary:
The geomagnetic storm has been continuously ongoing for about 30 hours
The magnetic storm that began yesterday, on the last day of September, around 3 a.m., is still continuing as of now. The continuous duration of the event has already reached about 30 hours.
The conditions in the space surrounding the planet currently do not favor the stabilization of the magnetosphere. Over the past day, the parameters of the interplanetary environment have mostly worsened.
The solar wind speed near Earth has increased from approximately 400 km/s to about 700 km/s . The plasma temperature has tripled, rising from 100,000 to 300,000 degrees. Moderate values of the interplanetary magnetic field strength provide some support. Its peaks coincided with yesterday’s peaks in magnetic field fluctuations. Currently, the field strength has decreased by 40-60%, which allows the storm to remain at a moderate G1-G2 level.
Last night, relatively short but more intense expansions of the auroral zone were observed compared to the day before. Among other reports, a significant number came from the Moscow region, where the aurora was barely visible to the naked eye but was confidently recorded using phones and cameras. A significant number of reports also came again from the northeastern regions of the country.
The forecast for the next day remains unfavorable. Despite the possibility of the storm decreasing to a "yellow" level within the next few hours, conditions both on the Sun and in near-Earth space do not favor normalization.
Moreover, the forecast for the day, for the first time in many days, includes more than a 50% probability of the formation of X-class flares on the star.