Сильный геомагнитный шторм продолжается более 30 часов: возможны полярные сияния

Solar wind speed reached 700 km/s

A strong geomagnetic storm that began on the night of September 30 at about 3:00 AM has been going on for more than 30 hours. This was reported by the Solar Astronomy Laboratory of the Space Research Institute of the Russian Academy of Sciences.

During this time, conditions in near-Earth space have deteriorated: the solar wind speed has increased from 400 to approximately 700 km/s, and the plasma temperature has tripled to 300,000 degrees. The intensity of the interplanetary magnetic field has decreased by 40–60%, but the storm persists at levels G1–G2.

The most noticeable manifestation was the auroras. Yesterday evening, they were observed in the northeastern regions of Russia, and were also recorded in the Moscow region. In the capital, the aurora was barely visible to the naked eye, but it was captured on smartphone and camera lenses.

The forecast for the next 24 hours remains unfavorable. Despite the possibility of a short-term decrease in activity to the "yellow" level, experts warn of a high probability of new disturbances. The probability of X-class flares on the Sun has exceeded 50% for the first time in recent days, which may lead to new magnetic storms.

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