The previous storm occurred on 6 and 7 may.
The first magnetic storm of level G1 on a scale of five played out on the Ground on June 2, predict astronomers.
However, another storm of level G2 is expected on may 17, and the magnetosphere of the Earth is perturbed, may 18, from graphics laboratory x-ray astronomy of the Sun Physical Institute named Lebedev, Russian Academy of Sciences (FIAN).
The previous storm occurred on 6 and 7 may, and the largest since the beginning of 2018 — April 20. To do this, this intensity maximum was only one storm this year that occurred in the night from 18 to 19 March Moscow time, however, the duration of the maximum phase then was only about 2.5 hours, astronomers say.
The passage of Earth through the solar wind streams such width is not an exceptional event and is often observed near the solar activity minimum. This is due to the fact that the minimum of the solar cycle is considerably weakened magnetic field of the Sun, and it partially loses its ability to retain solar plasma near the stellar surface.