Dangerous solar storm strikes Earth; Blackouts feared in southern hemisphere

tech.hindustantimes.com:

After the coronal mass ejections (CME) clouds hit the magnetosphere of the Earth and caused an interplanetary magnetic field shift yesterday on January 18, today, a solar storm struck the Earth propelled by the remaining CME particles. The solar storm would have remained undetected if some satellites did not pick up on the IMF disruption. The solar storm struck the southern hemisphere of our planet and caused a brief aurora display in the arctic region. It is also feared that nearby regions might have been hit with shortwave radio blackouts.

The incident was reported by SpaceWeather.com which noted on its website, “Arriving earlier than expected, a CME struck Earth's magnetic field on Jan. 17th around 2200 UT. Its arrival was signaled by an abrupt shift in the interplanetary magnetic field (IMF) near Earth”. The website also mentioned that the solar storm struck in the early hours of January 19 and it has since subsided.

This particular solar storm was predicted earlier by the National Oceanic and Atmospheric Administration (NOAA). But after a part of the CME cloud was carried forward by solar winds and impacted the magnetosphere yesterday, solar astronomers were not sure whether the rest of the cloud would give glancing blows or miss the Earth entirely. However, noting the IMF shift, the solar storm was predicted mere hours before an aurora display was seen in the arctic circles.

Reports suggest that it was a minor solar storm. But the nearby regions are feared to be affected by a shortwave radio blackout. This frequency of radio waves are generally used by airlines, ships, ham radio operators and drone pilots. But so far, there are no conclusive reports of them being disrupted.

The solar storm scare is not over, however.